Internal Cylindrical Grinders

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Preferred Buyer Location All over the world

The MODEL 80 possesses high precision, quality and maintenance free design . It accommodated grinding of cylindrical, tapered and blind holes. It can be proved blessing for mass production....

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The MODEL 80 possesses high precision, quality and maintenance free design . It accommodated grinding of cylindrical, tapered and blind holes. It can be proved blessing for mass production industries, i.e. Antifriction Bearings, Tractors, Scooters, Automobiles, their spares and Defense etc. The technical characteristics as given below well tell the rest

MODE OF OPERATION

Fully automatic cycle with manual loading and unloading of the component .The grinding cycle is controlled with electro-hydraulic valve sequence . Any one of the following cycles can be chosen by the selector switch and a cam limit switch. The automatic cycle (Interval dressing , pre-dressing and skip dressing cycle) of the machine is as follows.

By setting the counter value at 0004 ,this cycle will be operated 4 times without dressing . More –over any one of the above cycle can be selected to be operated once only with dressing.

* CLEANING OF GRINDING WHEEL AT ONE SIDE (RIGHT TO LEFT)

* * CLEANING OF GRINDING WHEEL BOTH THE SIDES (RIGHT TO LEFT & LEFT TO RIGHT)

BASIC MACHINE FEATURES

Work head with splash guard
Hydraulic Diamond dresser
Grinding wheel spindle (Belt driven)
Compensation of grinding wheel wear
Hand wheel for the displacement of the work head.
Rough grinding variable feed control
Finish grinding variable feed control
Grinding allowance setting knob
Quick unclamping foot switch
Table speed control for wheel dressing
Table reverse control
Fast traverse control
Starring and table speed control
Oil level
Hydraulic power pack
Electric control cabinet
Cycle cams and switches
Electro-Hydraulic solenoid valve
for manual/automatic cycle control
Coolant tank with magnetic filter

DISTINCTIVE FEATURES OF MODEL 80 INTERNAL GRINDER

Highest quality stress relieved castings ensure great rigidity and prolonged accuracy.
Tow tables ( i.e. longitudinal table and feed table) mounted on hardened prisms and prestressed rollers .
Work spindle running in special high precision HG or P4 class bearings.

Grinding wheel head mounted on longitudinal table without cross slide, ensuring maximum rigidity.
Entire machine is lubricated by oil mist .
Variety of belt driven spindle .Changes over of the spindle is easy and less time consuming . Maintenance of this spindle is easy.
( Optional : Oil mist lubrication belt driven spindle {Integral motor construction} )
Extra sensitive feed control permitting separate progressive adjustment of roughing and finishing feed.
Possibility to equip the machine with an electronic sizing device for direct measurement during grinding .
Oversize electrical equipment mounted in a control cabinet and hydraulic power pack separate from the machine eliminating vibration and thermal distortion.
Any one of the cycles can be chosen by selector switch and can limit switch.
Programmable logic controller (PLC) along with high precision limit switches makes operation more accurate.
There are many more special accessories like True chuck, Diaphragm Chuck and shock-centreless chuck ( magnetic )

Maximum Grindable diameter	mm	80
Maximum Grindable diameter	mm	04
Maximum Grinding length at largest bore	Mm	80
Head Stock Swivel	deg.	5` to 60`
Centre Height ( 0` - 5` head stock swivel)	mm	200
Center Height (0`-60` headstock swivel)	mm	100
Splash guard swing diameter	mm	250
Work hand spindle speed	mm	380, 500, 650, 890, 1200
Table speed infinitely variable	mm	0.5-6.0
Maximum table travel	mm	300
Reciprocation stroke	mm	4-80
Maximum retraction	mm	3
Maximum feed stroke	mm	O/R - 0.5
Cross slide travel	mm	50
Power required (depending upon equipment)	Kw.	6-12
Approximate net weight	Kg.	2500
Air flow	L/min	300

1^st Cycle	1. Rough grinding 4. Finish grinding	2. Spark out 5. Spark out	3. Dressing *
2^nd Cycle	1. Rough grinding 4. Finish grinding	1. Spark out 5. Spark out	3. Dressing * *
3^rd Cycle	1. Rough grinding 4. Rough Grinding 7. Finish grinding	2. Spark out 5. Spark out 8. Spark out	3. Dressing * 6. Dressing *
4^th Cycle	1. Rough grinding 4. Rough grinding 7. Finish Grinding	2. Spark out 5. Spark out 8. Spark out	2. Dressing * * 6. Dressing * *
5^th Cycle	1. Dressing 4. Spark out	2. Rough Grinding	3. Finish Grinding
6^th Cycle	SKIP – O Cycle ( Set the counter i.e. 0004)
	1. Rough Grinding	2. Finish Grinding	2. Spark out (No Dressing)

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SellerOriental Machine Tools Co
Address Nagdevi, Mumbai, Maharashtra

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