ZhouShanHeChengMachineryCo.LTD.

Zhoushan, China

Our company is more than 20 years of professional production of diesel spare parts supporting plant, especially the cylinder head.  the company can also be customized according to the various types of samples,  for the production of rich experience.  We provides all kinds of bore different products, is expected to have hundreds of varieties.  All kinds of products are used for diesel engine or auxiliary equipment.  

It is  mainly including YANMAR MAL 200-EN, -SN YANMAR, M220L-EN, -SN, YANAMR N330-EN, YANMAR Z280-EN for YANMAR series of products, we mainly provide the spare parts of cylinder head , cylinder liner , piston etc, we provides all kinds of bore different products, is expected to have hundreds of varieties. All kinds of products are used for diesel engine or auxiliary equipment. Factory in accordance with the national diesel engine standard to ensure that the service life of more than 2 years.

Our factory is professional production of diesel spare parts supporting plant, especially the cylinder head.  the company can also be customized according to the various types of samples,  for the production of rich experience.  we provides all kinds of bore different products, is expected to have hundreds of varieties.  All kinds of products are used for diesel engine or auxiliary equipment.

The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio. and it is part of the combustion chamber, a great impact on the work of the engine combustion chamber shape, the combustion of gasoline and diesel engines, the cylinder head is composed of a portion of the combustion chamber vary greatly. The main combustion chamber of gasoline engine in the cylinder cover, and the combustion chamber of diesel engine piston in the main pit at the top. we try our best suppling the best products . During the warranty period of products, the factory promise returned and guaranteed quality.

The cylinder head is mounted on the inlet, exhaust valve seat, valve guide hole for mounting into the exhaust valve, and an intake passage and an exhaust passage. The cylinder head of gasoline engine is processed on the installation of spark plug hole, and the cylinder cover is processed on the installation of the injector hole. The cylinder overhead camshaft the engine cover is provided with a cam shaft hole for installing the camshafts.The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio.During the warranty period of products, the factory promise returned and guaranteed quality. 

The cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas contact, therefore under great thermal load and mechanical load. The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio. During the warranty period of products, the factory promise returned and guaranteed quality.

The cylinder head is mainly used for AKSAKA series diesel engine and four stroke, with compression ignition mode of the fuel combustion in the cylinder, push the piston freight to high temperature and high pressure gas, and the piston connecting rod crank mechanism reciprocating motion into rotary motion and the external power. A working cycle including intake, compression, combustion five, expansion and exhaust process. It  can be completed in four piston strokes. In order to improve the wear resistance and fatigue strength of the cylinder head, we take measures to strengthen the material of ductile iron, take the heat treatment process of normalizing or quenching and tempering, the process parameters to the mechanical requirements of the standard.

Cylinder hole by laser quenching, inner and outer round surface can be ion nitriding, the strengthening method can improve the hardness and wear resistance of the cylinder. To improve the anti fatigue strength, nitriding can also improve the ability of the cylinder outer surface anti cavitation. The cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner.

Piston is one of the main moving parts of diesel engine. The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy. The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure. Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 timesThe piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness, Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.In order to reduce reciprocating inertia force, The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance. The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stressIt is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 times The piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness. Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.In order to reduce reciprocating inertia force.

The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.Piston is one of the main moving parts of diesel engine.The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy.The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure.Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 timesThe piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness, Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.In order to reduce reciprocating inertia force.

The basic structure  for the piston can be divided into top, head and skirt. The top of the piston is the main part of the combustion chamber, the shape of the combustion chamber and the form. The flat piston gasoline engine, the utility model has the advantages of small heat absorption area of diesel engine piston. The top often have a variety of pits, the shape, position and size must be mixed gas and diesel combustion formation and meet the requirements. The piston of a large marine low-speed diesel engine is usually a crosshead type. The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The top of the piston is the main part of the combustion chamber, the shape of the combustion chamber and the form. The flat piston gasoline engine, the utility model has the advantages of small heat absorption area of diesel engine piston. The top often have a variety of pits, the shape, position and size must be mixed gas and diesel combustion formation and meet the requirements. The piston of a large marine low-speed diesel engine is usually a crosshead type. The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The flat piston gasoline engine, the utility model has the advantages of small heat absorption area of diesel engine piston. The top often have a variety of pits, the shape, position and size must be mixed gas and diesel combustion formation and meet the requirements. The piston of a large marine low-speed diesel engine is usually a crosshead type The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The flat piston gasoline engine, the utility model has the advantages of small heat absorption area of diesel engine piston. The top often have a variety of pits, the shape, position and size must be mixed gas and diesel combustion formation and meet the requirements. The piston of a large marine low-speed diesel engine is usually a crosshead type. The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The piston can be divided into 3 parts: piston bolt assembly, piston head and piston skirt.The main function of the piston is to withstand the combustion pressure in the cylinder, and the force through the piston pin and connecting rod to the crankshaft.The piston is part of the combustion chamber, which is often made into different shapes, the gasoline engine piston by at most flat or concave, so that the combustion chamber has the advantages of compact structure, small cooling area, the manufacturing process is simple. The convex head piston used in the two stroke gasoline engine. Diesel engine piston top often prepared into various pits.The piston head is the seat of the part above the piston pin, piston head of the piston ring, to prevent the high temperature, high pressure gas into the crankcase, and prevent oil from entering the combustion chamber; the top of the piston absorbed most of the heat also passed to the cylinder through the piston head, and then through the cooling medium.

The cylinder head is box parts with complicated structure. The processing, the exhaust valve seat hole, valve guide hole, a spark plug mounting hole (gasoline engine) or fuel injector hole in the cylinder cover. Also cast a water jacket, a part of the intake and exhaust ports and combustion chamber or combustion chamber. If the camshaft is installed in the the cylinder cover,  The cylinder head is an important component of diesel engine and The cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas, contact, therefore under great thermal load and mechanical load.The main damage form of the cylinder head is worn, so the first requirement it has enough strength, hardness, wear resistance. it is also an important part of the diesel engine, so it must have good heat resistance and corrosion resistance.

By the general quality of grey cast iron or alloy cast iron cylinder cover, car with gasoline engine is used Aluminum Alloy cylinder head. Aluminum Alloy good thermal conductivity, can improve the compression ratio of the engine. Secondly, the casting performance is excellent, suitable for the casting of complex parts. It must be noted Aluminum Alloy cylinder head cooling control the bottom plane of the temperature below 300 DEG C. Otherwise, the bottom plane of overheating will cause plastic deformation and warping The processing, the exhaust valve seat hole, valve guide hole, a spark plug mounting hole (gasoline engine) or fuel injector hole in the cylinder cover.

The piston including piston crown and piston skirt , the piston in direct contact with the high temperature gas instantaneous temperature can reach 2500K above, therefore, is serious, and the radiation condition is very poor, so the piston when the temperature is high, top up to 600 ~ 700K, and the temperature distribution is not uniform; piston the top under air pressure, especially the power stroke gasoline engine maximum pressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes the piston impact, and bear the side pressure; the piston in the cylinder at a high speed (8 ~ 12ms) reciprocating motion, and speed changes constantly, it produces a large inertial force, the piston is great additional load. The piston to work in such harsh conditions, will produce deformation and accelerated wear, will produce additional load and thermal stress, at the same time by the chemical action of gas.

We have been engaged in supplying shipping marine engine spare parts cylinder head  to all over the world enjoying a good reputation by offering competitive prices, highquality and good technical services.  With development of the past 20 years, wecan supply marine spares parts such as cylinder head for YANMAR N330 which is used by many Auxiliary diesel engine .  All our products have a quality guarantee period of one year,  if there is any problem, the factory can exchange goods  in the quality guarantee period .

Ds22 cylinder head is mainly used in the auxiliary&general diesel engine  for four stroke. Our products can ensure the installation in place, in high speed diesel engines running smoothly. This type of cylinder head is a major component of normal operation of the diesel engine, and the cylinder is connected together inside the machine drives the piston moves up and down. During the warranty period of products, the factory promise returned and guaranteed quality. 

The hanshin cylinder head including EL and LU also have many types , eg lu26 , lu28, lun28arg , lu32 , lu35, lu38, lu40, lu50a, el30, el32, el 35, el 38 , el40 , el 44 etc .  Our company can also be customized according to the various types of samples,  for the production of rich experience.  We provides all kinds of bore different products, is expected to have hundreds of varieties.  All kinds of products are used for diesel engine or auxiliary equipment.  Here is the HANSHIN EL30  CYLINDER HEAD which is  the  owner of good quality and cheap price, is one of our main push models.

The main damage form of the cylinder head is worn, so the first requirement it has enough strength, hardness, wear resistance. it is also an important part of the diesel engine, so it must have good heat resistance and corrosion resistance. and the corresponding is two stroke or four stroke. The cylinder head is an important component of diesel engine and The cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas contact, therefore under great thermal load and mechanical load. The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio.During the warranty period of products, the factory promise returned and guaranteed quality.

The cylinder head is mainly used for AKSAKA series diesel engine and four stroke, with compression ignition mode of the fuel combustion in the cylinder, push the piston freight to high temperature and high pressure gas, and the piston connecting rod crank mechanism reciprocating motion into rotary motion and the external power.A working cycle including intake, compression, combustion five, expansion and exhaust process.  it  can be completed in four piston strokes. In order to improve the wear resistance and fatigue strength of the cylinder head, we take measures to strengthen the material of ductile iron, take the heat treatment process of normalizing or quenching and tempering, the process parameters to the mechanical requirements of the standard.

Cylinder hole by laser quenching, inner and outer round surface can be ion nitriding, the strengthening method can improve the hardness and wear resistance of the cylinder. To improve the anti fatigue strength, nitriding can also improve the ability of the cylinder outer surface anti cavitation. The cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner.

Piston Engine Parts The piston is the automobile engine cylinder body parts in the reciprocating motion of the piston. The basic structure can be divided into top, head and skirt. The top of the piston is the main part of the combustion chamber, the shape of the combustion chamber and the form. The flat piston gasoline engine, the utility model has the advantages of small heat absorption area of diesel engine. The piston top often have a variety of pits, the shape, position and size must be mixed gas and diesel combustion formation and meet the requirements.

Engine piston the piston head is theseat of the part above the piston pin, piston head of the piston ring, toprevent the high temperature, high pressure gas into the crankcase, and preventoil from entering the combustion chamber; the top of the piston absorbed mostof the heat also passed to the cylinder through the piston head, and thenthrough the cooling medium. The piston of a large marine low-speed diesel engine is usually a crosshead type. The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

Automobile cylinder piston parts The piston in thehigh temperature, high pressure, high speed, poor lubrication conditions. Thepiston in direct contact with the high temperature gas instantaneoustemperature can reach 2500K above, therefore, is serious, and the radiationcondition is very poor, so the piston when the temperature is high, top up to600 ~ 700K, and the temperature distribution is not uniform; piston the topunder air pressure, especially the power stroke gasoline engine maximumpressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes thepiston impact, and bear the side pressure; the piston in the cylinder at a highspeed (8 ~ 12ms) reciprocating motion, and speed changes constantly, itproduces a large inertial force, the piston is great additional load. Thepiston to work in such harsh conditions, will produce deformation andaccelerated wear, will produce additional load and thermal stress, at the sametime by the chemical action of gas.

Thepiston in direct contact with the high temperature gas instantaneoustemperature can reach 2500K above, therefore, is serious, and the radiationcondition is very poor, so the piston when the temperature is high, top up to600 ~ 700K, and the temperature distribution is not uniform; piston the topunder air pressure, especially the power stroke gasoline engine maximumpressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes thepiston impact, and bear the side pressure; the piston in the cylinder at a highspeed (8 ~ 12ms) reciprocating motion, and speed changes constantly, itproduces a large inertial force, the piston is great additional load. Thepiston to work in such harsh conditions, will produce deformation andaccelerated wear, will produce additional load and thermal stress, at the sametime by the chemical action of gas.

The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy.The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure.Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 timesThe piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness, Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.In order to reduce reciprocating inertia force, The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy.the working condition of the piston is rather harsh, it is with a temperature of 1400-1800 deg c, and the pressure.up to 13mpa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.it is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 timesthe piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness, good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.in order to reduce reciprocating inertia force, the piston of a large marine low-speed diesel engine is usually a crosshead type.the heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure.Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 timesThe piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness, Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.In order to reduce reciprocating inertia force, The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness.Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.In order to reduce reciprocating inertia force, The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure.Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 times

The piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness, Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistance.In order to reduce reciprocating inertia force. The piston of a large marine low-speed diesel engine is usually a crosshead type. The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.Piston is one of the main moving parts of diesel engine.The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy.The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure.Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication.

Piston is one of the main moving parts of diesel engine.The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy.The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure.Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 times.The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The piston is in engine cylinder body parts for the reciprocating motion of the piston. The basic structure can be divided into top, head and skirt. The top of the piston is the main part of the combustion chamber, the shape of the combustion chamber and the form. The flat piston gasoline engine, the utility model has the advantages of small heat absorption area of diesel engine piston. The top often have a variety of pits, the shape, position and size must be mixed gas and diesel combustion formation and meet the requirements. The piston of a large marine low-speed diesel engine is usually a crosshead type The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

Conpressor piston air compressor The main function of the piston is to withstand the combustion pressure in the cylinder, and the force through the piston pin and connecting rod to the crankshaft.The piston is part of the combustion chamber, which is often made into different shapes, the gasoline engine piston by at most flat or concave, so that the combustion chamber has the advantages of compact structure, small cooling area, the manufacturing process is simple. The convex head piston used in the two stroke gasoline engine. Diesel engine piston top often prepared into various pits.The piston head is the seat of the part above the piston pin, piston head of the piston ring, to prevent the high temperature, high pressure gas into the crankcase, and prevent oil from entering the combustion chamber; the top of the piston absorbed most of the heat also passed to the cylinder through the piston head, and then through the cooling medium.

The piston in the high temperature, high pressure, high speed, poor lubrication conditions. The piston in direct contact with the high temperature gas instantaneous temperature can reach 2500K above, therefore, is serious, and the radiation condition is very poor, so the piston when the temperature is high, top up to 600 ~ 700K, and the temperature distribution is not uniform; piston the top under air pressure, especially the power stroke gasoline engine maximum pressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes the piston impact, and bear the side pressure; the piston in the cylinder at a high speed (8 ~ 12ms) reciprocating motion, and speed changes constantly, it produces a large inertial force, the piston is great additional load. The piston to work in such harsh conditions, will produce deformation and accelerated wear, will produce additional load and thermal stress, at the same time by the chemical action of gas.

The stem is an important component, the valve used for transmission, with actuator or handle, below directly drives the valve core to move or rotate, in order to achieve the valve switch or regulation. The stem and the ball joint and the valve rod and the valve body should contact the anti-static mechanism, prevent electrostatic agglomeration on the sphere. The stem safety design should be prevented from being "blown out" under the working pressure on the valve stem, blow out proof flange of the disposal of a ring, in order to reduce the friction coefficient. The stem is an important component, the valve used for transmission then, the actuator or the handle, below directly drives the valve core to move or rotate, in order to achieve the valve switch or regulation.The opening and closing process is not only the moving parts in the valve, mechanical parts, and seals. At the same time, the media impact and corrosion, but also packing friction. So the choice of stem material, must ensure that it has enough strength in the specified temperature, good anti impact toughness. Abrasion resistance, corrosion resistance. The stem is vulnerable, the choice should also note that the mechanical properties and heat treatment processing performance.

The mitsubishi cylinder head including kobe and akasaka also have many types , eg 3788 , 37lla , 4575 , 4580 , 52105, 52125 etc .  our company can also be customized according to the various types of samples,  for the production of rich experience.  we provides all kinds of bore different products, is expected to have hundreds of varieties.    all kinds of products are used for diesel engine or auxiliary equipment.  here is the uec 37la  cylinder head which is  the  owner of good quality and cheap price, is one of our main push models.

We can provide yanmar N 330, yanmar M200l -en , yanmar M220l-en etc including many yanmar types , the number of varieties has many kinds, our company can also be customized according to the various types of samples,  for the production of rich experience.  we provides all kinds of bore different products, is expected to have hundreds of varieties.    All kinds of products are used for diesel engine or auxiliary equipment. Factory in accordance with the national diesel engine standard to ensure that the service life of more than 2 years.

A working cycle of diesel engine comprises an air intake, compression, combustion, expansion and exhaust five processes, it can be completed in two or four stroke piston stroke, the corresponding is two stroke or four stroke. The cylinder head is an important component of diesel engine and The cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas contact, therefore under great thermal load and mechanical load. The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio. During the warranty period of products, the factory promise returned and guaranteed quality.

we provides all kinds of bore different products, is expected to have hundreds of varieties including the Daihatsu types .    All kinds of products are used for diesel engine or auxiliary equipment.The cylinder head is one of the important parts of main and auxiliary machines and The main damage form of the cylinder head is worn, so the first requirement it has enough strength, hardness, wear resistance, it is also an important part of the diesel engine, so it must have good heat resistance and corrosion resistanceFactory in accordance with the national diesel engine standard to ensure that the service life of more than 2 years.

The cylinder head material is generally ductile iron, often using the heat treatment process of normalizing or modulation processing, wear resistance, heat resistance and corrosion resistance are good.MAK 453AK cylinder head assembly comprises a cylinder body, intake valve, inlet valve, exhaust valve, exhaust valve, pipe, spring clip. The cylinder body weight the head of 210KG. Factories to ensure that the use of time in 2 years, within the warranty period of any quality problems returned.We have been engaged in supplying shipping marine engine spare parts cylinder head  to all over the world enjoying a good reputation by offering competitive prices, high quality and good technical services.

Diesel Generating Diesel Engine Parts The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio.During the warranty period of products, the factory promise returned and guaranteed quality. The cylinder head is an important component of diesel engine and The cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas contact, therefore under great thermal load and mechanical load. The main damage form of the cylinder head is worn, so the first requirement it has enough strength, hardness, wear resistance. it is also an important part of the diesel engine, so it must have good heat resistance and corrosion resistance. and the corresponding is two stroke or four stroke.

The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio. and it is part of the combustion chamber, a great impact on the work of the engine combustion chamber shape, the combustion of gasoline and diesel engines, the cylinder head is composed of a portion of the combustion chamber vary greatly. The main combustion chamber of gasoline engine in the cylinder cover, and the combustion chamber of diesel engine piston in the main pit at the top. we try our best suppling the best products . During the warranty period of products, the factory promise returned and guaranteed quality. 

It is mounted in the cylinder liner of the cylinder, and the piston and cylinder head composed of combustion chamber. The cylinder is divided into dry and wet cylinder liner two categories. On the back of the cooling water does not contact the cylinder liner is dry cylinder, cylinder sleeve and the back contact cooling water is wet liner. Dry liner thickness is relatively thin, simple structure convenient processing. Wet cylinder liner direct contact cooling water, so conducive to the cooling of the engine, the simplification of engine.

Cylinder used in laser surface strengthening method and quenching and inner and outer round surface can be ion nitriding. The strengthening method can improve the hardness and wear resistance of the cylinder sleeve. To improve the fatigue strength. The nitriding treatment can also improve the ability of cylinder excircle surface anti cavitation. The  cylinder liner cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner.

Cylinder hole by laser quenching, inner and outer round surface can be ion nitriding, the strengthening method can improve the hardness and wear resistance of the cylinder. To improve the anti fatigue strength, nitriding can also improve the ability of the cylinder outer surface anti cavitation. The cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner.

Diesel Engine Liner Parts Wet cylinder liner direct contact cooling water, so conducive to the cooling of the engine, the simplification of engine. It is mounted in the cylinder liner of the cylinder, and the piston and cylinder head composed of combustion chamber. The cylinder is divided into dry and wet cylinder liner two categories. On the back of the cooling water does not contact the cylinder liner is dry cylinder, cylinder sleeve and the back contact cooling water is wet liner. Dry liner thickness is relatively thin, simple structure convenient processing.

Marine Engine Parts For Hanshin Cylinder hole by laser quenching, inner and outer round surface can be ion nitriding, the strengthening method can improve the hardness and wear resistance of the cylinder. To improve the anti fatigue strength, nitriding can also improve the ability of the cylinder outer surface anti cavitation. TheLH34 cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner .

Mak Cylinder Liner It is mounted in the cylinder liner of the cylinder, and the piston and cylinder head composed of combustion chamber. The cylinder is divided into dry and wet cylinder liner two categories. On the back of the cooling water does not contact the cylinder liner is dry cylinder, cylinder sleeve and the back contact cooling water is wet liner. Dry liner thickness is relatively thin, simple structure convenient processing. Wet cylinder liner direct contact cooling water, so conducive to the cooling of the engine, the simplification of engine.

The piston ring groove. The head has a plurality of processing installation of piston rings, piston ring number depends on the sealing requirements, it is related with the speed and pressure of the engine cylinder. The piston is part of the combustion chamber, which is often made into different shapes, the gasoline engine piston by at most flat or concave, so that the combustion chamber structure heat dissipation, small area, simple manufacturing process. Convex head piston used in the two stroke gasoline engine. Diesel engine piston top often made of various pits.

The piston is part of the combustion chamber, which is often made into different shapes, the gasoline engine piston by at most flat or concave, so that the combustion chamber has the advantages of compact structure, small cooling area, the manufacturing process is simple. The convex head piston used in the two stroke gasoline engine. Diesel engine piston top often prepared into various pits.The piston head is the seat of the part above the piston pin, piston head of the piston ring, to prevent the high temperature, high pressure gas into the crankcase, and prevent oil from entering the combustion chamber; the top of the piston absorbed most of the heat also passed to the cylinder through the piston head, and then through the cooling medium.Ring groove of the piston head has a plurality of processing installation of piston rings, piston ring number depends on the sealing requirements, it is related with the speed and engine cylinder pressure. The ring number of high-speed engine than low speed engine less than the ring number of gasoline engine.

The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stressIt is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 times Piston is one of the main moving parts of diesel engine, The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy.

The main damage forms of connecting rod are fatigue fracture and excessive deformation. Generally, the fatigue fracture zone is the three high stress region on the connecting rod. The working conditions of the connecting rod require that the connecting rod has higher strength and fatigue resistance. It also requires sufficient steel and toughness. The traditional processing technology of connecting rods of the material in general use 45 steel 40cr or 40mnb steel, high hardness, therefore, a new connecting rod material german car production such as c70s6 high carbon microalloyed steel, splitasco steel, fractim series forging forging steel and forging steel s53cv-fs etc. (all german standard din). Although alloy steel has high strength, it is sensitive to stress concentration. Therefore, in the connecting rod shape, excessive fillet and other aspects need strict requirements, but also pay attention to the quality of surface processing to improve fatigue strength, otherwise, the application of high strength alloy steel can not achieve the desired results.

The piston inspection is mainly the measurement of skirt diameter, piston ring groove height and piston pin hole size. The piston in the high temperature, high pressure, high speed, poor lubrication conditions. The piston in direct contact with the high temperature gas instantaneous temperature can reach 2500K above, therefore, is serious, and the radiation condition is very poor, so the piston when the temperature is high, top up to 600 ~ 700K, and the temperature distribution is not uniform; piston the top under air pressure, especially the power stroke gasoline engine maximum pressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes the piston impact, and bear the side pressure; the piston in the cylinder at a high speed (8 ~ 12ms) reciprocating motion, and speed changes constantly, it produces a large inertial force, the piston is great additional load. The piston to work in such harsh conditions, will produce deformation and accelerated wear, will produce additional load and thermal stress, at the same time by the chemical action of gas.

The connecting rod body is composed of three parts, the part connected with the piston pin is called a connecting rod small head; the part connected with the crankshaft is called a connecting rod big head, and the connecting rod of the small head and the big head is called a connecting rod rod bodyThe top end of the connecting rod are mostly thin-walled circular structure for reducing wear between the piston pin and the thin bronze bushing into the hole in the head. In the drilling head and bushing or slot milling, with the surface to make a splash of oil foam into the lubrication bushing and the piston pin.The body of the connecting rod is a long rod in the work force is larger, in order to prevent the deformation of the rod body must have enough stiffness. Therefore, the engine's connecting rod is mostly used in section I, Section 1 in stiffness and strength are sufficient condition minimum quality, high strength engine using H shape section. Some jet engine uses oil cooling piston connecting rod, to be in the shaft longitudinal drilled hole. To avoid stress concentration, the connecting rod body and head, the bulk of the connecting parts are used in circular smooth transition.

The piston in direct contact with the high temperature gas instantaneous temperature can reach 2500K above, therefore, is serious, and the radiation condition is very poor, so the piston when the temperature is high, top up to 600 ~ 700K, and the temperature distribution is not uniform; piston the top under air pressure, especially the power stroke gasoline engine maximum pressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes the piston impact, and bear the side pressure; the piston in the cylinder at a high speed (8 ~ 12ms) reciprocating motion, and speed changes constantly, it produces a large inertial force, the piston is great additional load. The piston to work in such harsh conditions, will produce deformation and accelerated wear, will produce additional load and thermal stress, at the same time by the chemical action of gas.

We have been engaged in supplying shipping marine engine spare parts cylinder head  to all over the world enjoying a good reputation by offering competitive prices, highquality and good technical services.  with development of the past 20 years, wecan supply marine spares parts such as cylinder head for yanmar n330 which is used by many auxiliary diesel engine .  all our products have a quality guarantee period of one year,  if there is any problem, the factory can exchange goods  in the quality guarantee period.

Cylinder hole by laser quenching, inner and outer round surface can be ion nitriding, the strengthening method can improve the hardness and wear resistance of the cylinder. To improve the anti fatigue strength, nitriding can also improve the ability of the cylinder outer surface anti cavitation. The cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner.

The DM33 Cylinder liner cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner.

The hanshin el40 cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner

The piston works under the condition of high temperature, high pressure, high speed and bad lubrication. Thepiston in direct contact with the high temperature gas instantaneoustemperature can reach 2500K above, therefore, is serious, and the radiationcondition is very poor, so the piston when the temperature is high, top up to600 ~ 700K, and the temperature distribution is not uniform; piston the topunder air pressure, especially the power stroke gasoline engine maximumpressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes thepiston impact, and bear the side pressure; the piston in the cylinder at a highspeed (8 ~ 12ms) reciprocating motion, and speed changes constantly, itproduces a large inertial force, the piston is great additional load. Thepiston to work in such harsh conditions, will produce deformation andaccelerated wear, will produce additional load and thermal stress, at the sametime by the chemical action of gas.

The piston of a large marine low-speed diesel engine is usually a crosshead typeThe heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance. Piston is one of the main moving parts of diesel engineThe piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energyThe working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressureUp to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stressIt is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 times.

Piston is one of the main moving parts of diesel engine, The piston passes the gas pressure through the connecting rod to the crankshaft to realize the transformation of the heat energy to the mechanical energy The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressureUp to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stressIt is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the condition of boundary lubrication. 1 times The piston of a large marine low-speed diesel engine is usually a crosshead typeThe heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The connecting rod connects the piston and the crankshaft, and transfers the force acting on the piston to the crankshaftThe link group comprises a connecting rod, connecting rod cap connecting rod bushing, connecting rod bearing and rod bolts (or screws) and other components. The linkage under the gas force piston pin came and its swing and piston reciprocating inertia forces, the magnitude and direction of these forces are cyclical changes. So the link by compression, stretching and alternating load. The connecting rod must have enough fatigue strength and structural stiffness. The fatigue strength is insufficient, often caused by fracture of connecting rod or the connecting rod bolt, causing major accidents damage. If the stiffness is not enough, it will cause the rod circle deformation, bending deformation and big loss the piston, cylinder, crank pin and bearing eccentric wear and so on.

The connecting rod body is composed of three parts, and the connecting part of the piston pin is called the connecting rod small end; the connecting part of the crankshaft is called the connecting rod big endThe top end of the connecting rod are mostly thin-walled circular structure for reducing wear between the piston pin and the thin bronze bushing into the hole in the head. In the drilling head and bushing or slot milling, with the surface to make a splash of oil foam into the lubrication bushing and the piston pin.The body of the connecting rod is a long rod in the work force is larger, in order to prevent the deformation of the rod body must have enough stiffness. Therefore, the engine's connecting rod is mostly used in section I, Section 1 in stiffness and strength are sufficient condition minimum quality, high strength engine using H shape section. Some jet engine uses oil cooling piston connecting rod, to be in the shaft longitudinal drilled hole. To avoid stress concentration, the connecting rod body and head, the bulk of the connecting parts are used in circular smooth transition.

The top end of the connecting rod are mostly thin-walled circular structure for reducing wear between the piston pin and the thin bronze bushing into the hole in the head. In the drilling head and bushing or slot milling, with the surface to make a splash of oil foam into the lubrication bushing and the piston pin.The body of the connecting rod is a long rod in the work force is larger, in order to prevent the deformation of the rod body must have enough stiffness. Therefore, the engine's connecting rod is mostly used in section I, Section 1 in stiffness and strength are sufficient condition minimum quality, high strength engine using H shape section. Some jet engine uses oil cooling piston connecting rod, to be in the shaft longitudinal drilled hole. To avoid stress concentration, the connecting rod body and head, the bulk of the connecting parts are used in circular smooth transition.

The valve stem is an important part of the valve. It is used to drive, connect the actuating mechanism or handle, and directly drive the spool to move or rotate, so as to realize the function of valve switch or regulation.Valve stem in the valve opening and closing process is not only moving parts, stress components, but also seals. At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance.

It is used to drive, connect the actuating mechanism or handle, and directly drive the spool to move or rotate, so as to realize the function of valve switch or regulation.Valve stem in the valve opening and closing process is not only moving parts, stress components, but also seals. At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance. The valve stem is a vulnerable part, and the mechanical performance and heat treatment performance of the material should be paid attention to when selecting, The valve stem is an important part of the valve.

The stem bear pulled in the valve opening and closing process, and compression and torsion force, and direct contact with the media, It is used to drive, connect the actuating mechanism or handle, and directly drive the spool to move or rotate, so as to realize the function of valve switch or regulation.Valve stem in the valve opening and closing process is not only moving parts, stress components, but also seals. At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance. The valve stem is a vulnerable part, and the mechanical performance and heat treatment performance of the material should be paid attention to when selecting, The valve stem is an important part of the valve.

The valve stem is a vulnerable part, and the mechanical performance and heat treatment performance of the material should be paid attention to when selecting, The valve stem is an important part of the valve. The stem bear pulled in the valve opening and closing process, and compression and torsion force, and direct contact with the media, It is used to drive, connect the actuating mechanism or handle, and directly drive the spool to move or rotate, so as to realize the function of valve switch or regulation.Valve stem in the valve opening and closing process is not only moving parts, stress components, but also seals. At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance. 

The valve stem is the mechanical performance and heat treatment performance of the material should be paid attention to when selecting, The valve stem is an important part of the valve. The stem bear pulled in the valve opening and closing process, and compression and torsion force, and direct contact with the media, It is used to drive, connect the actuating mechanism or handle, and directly drive the spool to move or rotate, so as to realize the function of valve switch or regulation.Valve stem in the valve opening and closing process is not only moving parts, stress components, but also seals. At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance. 

The stem bear pulled in the valve opening and closing process, and compression and torsion force, and direct contact with the media, as well as the relative motion between the friction and filler, so in the choice of stem material, must ensure that it has enough strength in the specified temperature, good impact toughness, abrasion resistance, corrosion resistance.The stem and the ball joint and the valve rod and the valve body should contact the anti-static mechanism, prevent electrostatic agglomeration on the sphere. The stem safety design should be prevented from being "blown out" under the working pressure on the valve stem, blow out proof flange of the disposal of a ring, in order to reduce the friction coefficient.

The stem and the ball joint and the valve rod and the valve body should contact the anti-static mechanism, prevent electrostatic agglomeration on the sphere. The stem safety design should be prevented from being "blown out" under the working pressure on the valve stem, blow out proof flange of the disposal of a ring, in order to reduce the friction coefficient The stem bear pulled in the valve opening and closing process, and compression and torsion force, and direct contact with the media, as well as the relative motion between the friction and filler, so in the choice of stem material, must ensure that it has enough strength in the specified temperature, good impact toughness, abrasion resistance, corrosion resistance.

The piston in direct contact with the high temperature gas instantaneous temperature can reach 2500K above, therefore, is serious, and the radiation condition is very poor, so the piston when the temperature is high, top up to 600 ~ 700K, and the temperature distribution is not uniform; piston the top under air pressure, especially the power stroke gasoline engine maximum pressure, up to 3 ~ 5MPa, the diesel engine is up to 6 ~ 9MPa, which makes the piston impact, and bear the side pressure; the piston in the cylinder at a high speed (8 ~ 12ms) reciprocating motion, and speed changes constantly, it produces a large inertial force, the piston is great additional load. The piston to work in such harsh conditions, will produce deformation and accelerated wear, will produce additional load and thermal stress, at the same time by the chemical action of gas.

The valve within the detachable parts surface, for supporting the valve fully closed position, and form a seal pair. The general is the largest circulation valve seat diameter diameter. For example the valve seat material is very extensive, all kinds of rubber, plastic and metal materials can be used as the seat material, The stem bear pulled in the valve opening and closing process, and compression and torsion force, and direct contact with the media, as well as the relative motion between the friction and filler, so in the choice of stem material, must ensure that it has enough strength in the specified temperature, good impact toughness, abrasion resistance, corrosion resistance.The stem and the ball joint and the valve rod and the valve body should contact the anti-static mechanism, prevent electrostatic agglomeration on the sphere. The stem safety design should be prevented from being "blown out" under the working pressure on the valve stem, blow out proof flange of the disposal of a ring, in order to reduce the friction coefficient.

the part connected with the piston pin is called a connecting rod small head; the part connected with the crankshaft is called a connecting rod big head, and the connecting rod of the small head and the big head is called a connecting rod rod body The top end of the connecting rod are mostly thin-walled circular structure for reducing wear between the piston pin and the thin bronze bushing into the hole in the head. In the drilling head and bushing or slot milling, with the surface to make a splash of oil foam into the lubrication bushing and the piston pin.The body of the connecting rod is a long rod in the work force is larger, in order to prevent the deformation of the rod body must have enough stiffness. Therefore, the engine's connecting rod is mostly used in section I, Section 1 in stiffness and strength are sufficient condition minimum quality, high strength engine using H shape section. Some jet engine uses oil cooling piston connecting rod, to be in the shaft longitudinal drilled hole. To avoid stress concentration, the connecting rod body and head, the bulk of the connecting parts are used in circular smooth transition.

we provides all kinds of bore with different products, is expected to have hundreds of varieties.  All kinds of products are used for diesel engine or auxiliary equipment.  Factory in accordance with the national diesel engine standard to ensure that the service life of more than 1 years. We polished smooth surface of cylinder head and good out looking with good quality .In the use of machine tool processing products, the requirements of the product processing size accuracy, in order to ensure the correct size of the product.  and we can supply the entire series of hanshin products  including hanshin lu & el TYPES .

The cylinder head material is generally ductile iron,  using the heat treatment process of normalizing or modulation processing of its wear resistance, heat resistance and corrosion resistance are good.we have been engaged in supplying shipping marine engine spare parts cylinder head  to all over the world enjoying a good reputation by offering competitive prices, high quality and good technical services.  with development of the past 20 years, we can supply marine spares parts such as cylinder head for akasaka  a37 which is used by many auxiliary diesel engine .  all our products have a quality guarantee period of one year,  if there is any problem, the factory can exchange goods  in the quality guarantee period .

In order to improve the wear resistance and fatigue strength of the cylinder head, we take measures to strengthen the material of ductile iron, take the heat treatment process of normalizing or quenching and tempering, the process parameters to the mechanical requirements of the standard.The cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas contact, therefore under great thermal load and mechanical load. The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio. During the warranty period of products, the factory promise returned and guaranteed quality.

The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity aluminum alloy good, is conducive to improve the compression ratio. the mitsubishi cylinder head including kobe and akasaka also have many types , eg 3788 , 37lla , 4575 , 4580 , 52105, 52125 etc .  our company can also be customized according to the various types of samples,  for the production of rich experience.   we provides all kinds of bore different products, is expected to have hundreds of varieties.    all kinds of products are used for diesel engine or auxiliary equipment.  here is the uec 3788 cylinder head which is  the  owner of good quality and cheap price, is one of our main push models.

The cylinder head is an important component of diesel engine and the cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas contact, therefore under great thermal load and mechanical load. The main damage form of the cylinder head is worn, so the first requirement it has enough strength, hardness, wear resistance. It is also an important part of the diesel engine, so it must have good heat resistance and corrosion resistance. And the corresponding is two stroke or four stroke.  the cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity aluminum alloy good, is conducive to improve the compression ratio.during the warranty period of products, the factory promise returned and guaranteed quality.

The cylinder head is mounted on the inlet, exhaust valve seat, valve guide hole for mounting into the exhaust valve, and an intake passage and an exhaust passage. The cylinder head of gasoline engine is processed on the installation of spark plug hole, and the cylinder cover is processed on the installation of the injector hole. The cylinder overhead camshaft the engine cover is provided with a cam shaft hole for installing the camshafts.the cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity aluminum alloy good, is conducive to improve the compression ratio.during the warranty period of products, the factory promise returned and guaranteed quality.

A working cycle of diesel engine comprises an air intake, compression, combustion, expansion and exhaust five processes, it can be completed in two or four stroke piston stroke, the corresponding is two stroke or four stroke. The cylinder head is an important component of diesel engine and The cylinder head is mounted in the cylinder above the sealing cylinder from the upper and a combustion chamber. It is often with high temperature and high pressure gas contact, therefore under great thermal load and mechanical load. The cylinder head generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio. During the warranty period of products, the factory promise returned and guaranteed quality. 

The cylinder cover generally adopts cast iron or alloy cast iron, thermal conductivity Aluminum Alloy good, is conducive to improve the compression ratio. The cylinder head is mounted on the inlet, exhaust valve seat, valve guide hole for mounting into the exhaust valve, and an intake passage and an exhaust passage. The cylinder cover of gasoline engine is processed on the installation of spark plug hole, and the cylinder cover is processed on the installation of the injector hole. The cylinder overhead camshaft the engine cover is provided with a cam shaft hole for installing the camshafts.The cylinder head is part of the combustion chamber, a great impact on the work of the engine combustion chamber shape, the combustion of gasoline and diesel engines, the cylinder head is composed of a portion of the combustion chamber vary greatly. The main combustion chamber of gasoline engine in the cylinder cover, and the combustion chamber of diesel engine piston in the main pit at the top.

The 3788 cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner .

Cylinder hole by laser quenching, inner and outer round surface can be ion nitriding, the strengthening method can improve the hardness and wear resistance of the cylinder. To improve the anti fatigue strength, nitriding can also improve the ability of the cylinder outer surface anti cavitation. The 37LA  cylinder liner is one component of the combustion chamber components, direct contact with the inner wall and the outer wall of the gas, often for cooling the cooling water, so it can bear high heat load, mechanical load and severe corrosion. At the same time, the cylinder still lubrication conditions were very poor and the piston assembly for a dramatic friction we use. The liner material is copper chromium molybdenum alloy cast iron has good heat resistance, thermal conductivity and corrosion resistance. At the same time to just set the nitriding. Increase the wear resistance of the cylinder liner.

we try our best suppling the best products . During the warranty period of products, the factory promise returned and guaranteed quality.  Cylinder hole by laser quenching, inner and outer round surface can be ion nitriding, the strengthening method can improve the hardness and wear resistance of the cylinder. To improve the anti fatigue strength, nitriding can also improve the ability of the cylinder outer surface anti cavitation.

It is mounted in the cylinder liner of the cylinder, and the piston and cylinder head composed of combustion chamber. The cylinder is divided into dry and wet cylinder liner two categories. On the back of the cooling water does not contact the cylinder liner is dry cylinder, cylinder sleeve and the back contact cooling water is wet liner. Dry liner thickness is relatively thin, simple structure convenient processing. Wet cylinder liner direct contact cooling water, so conducive to the cooling of the engine, the simplification of engine.

Piston is one of the main moving parts of diesel engine. The gas pressure is transmitted to the crankshaft through the connecting rod to realize the transformation of heat energy into mechanical energy.The working condition of the piston is rather harsh, it is with a temperature of 1400-1800 DEG C, and the pressure Up to 13MPa gas phase contact, resulting in a large thermal stress and alternating mechanical stress.It is seriously corroded by the gas, and it has strong friction and impact with the cylinder wall under the boundary lubrication condition.

The piston is exposed to high temperature, high pressure and strong corrosive gas, so it is required to have sufficient strength and hardness, Good heat resistance and thermal conductivity, high fatigue strength and corrosion resistanceIn order to reduce the reciprocating inertia force.The piston of a large marine low-speed diesel engine is usually a crosshead type.The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.Piston alloy quenched and tempered steel has better heat resistance and corrosion resistance. The skirt with nodular cast iron annealing treatment, with good wear resistance.

The piston head is the seat of the part above the piston pin, piston head of the piston ring, to prevent the high temperature, high pressure gas into the crankcase, and prevent oil from entering the combustion chamber; the top of the piston absorbed most of the heat also passed to the cylinder through the piston head, and then through the cooling medium.The piston head is processed with a plurality of grooves which are arranged on the piston ring, and the number of the piston rings is determined by the requirements of the seal, which is related to the rotation speed of the engine and the cylinder pressure.

The piston head need to prevent the high temperature, high pressure gas into the crankcase, and prevent oil from entering the combustion chamber; the top of the piston absorbed most of the heat also passed to the cylinder through the piston head, and then through the cooling medium. The piston head is processed with a plurality of grooves which are arranged on the piston ring, and the number of the piston rings is determined by the requirements of the seal, which is related to the rotation speed of the engine and the cylinder pressure.