om the graph. After reaching zero speed, if the shaft of Torque Motor is rotated by force in opposite direction of normal rotation then the Torque Motor tries to resist it. (Please see graph below X-axis, which shows T N curves at different voltages) This means that when an energized Torque Motor is driven by an extended source against normal rotation it exerts an almost constant lacking torque on this extended source.

They are extremely useful in applications where speed synchronism between different machines is required e.g. Synthetic fibre industry, glass making machinery, textiles etc. For spinning metering pump 0.321.6 hp , 4 pole, 16-80 Hz , 54-220V, Foot mounting NEMA 182 frame, For feed roll 5KW , 1500 rpm, 4 pole , 220V50 Hz, suitable for frequency 25 to 130 Hz and 110V to 572V, flange mounted, 112 frame.

MARK PERMANENT MAGNET BRUSHLESS AC SERVO MOTORS FOR INJECTION MOULDING

Mark Elektriks offers an Energy efficienct Servo Motors for pump for Injection Moulding, presses and hydraulic machines. Servo pumps (servo motor + pump) combine the advantages of hydraulic power transmission and an electrically controlled power actuator. By enabling optimal energy usage in the partial load range. Mark Elektriks offers energy-efficient and cost-effective Injection moulding servo motors for power outputs up to 50 KW. MARK PERMANENT MAGNET BRUSHLESS AC SERVO MOTORS (Injection moulding servo motors) when integrated with pump and controller, can be connected to your machine with ease. This allows you to significantly reduce the energy consumption of your injection moulding machine.

Product benefitsCustomer benefits

Substantial Reduction in energy consumption and therefore reduced energy costs with Injection moulding servo motors	Quick Recovery of any higher initial costs for Injection moulding servo motors and servo drive usually within 1 year
Better control characteristics due to Injection moulding servo motors	Easy replacement of electronic-hydraulic variable pump
Integrated closed-loop control in converter; better hydraulic control	Ability to connect to machine controller without difficulty (Plug & Play) > Retrofits can be made without adapting the control system We have partners to provide retrofits
Higher efficiency than a controlled asynchronous motor with variable pump	Minimal operating costs
Close partnership with system manufacturer for optimal system design	Optimal design with respect to costs, noise and energy efficiency
Less heating, thus allowing a lesser cooling requirement	More compact machine design and additional cost reduction due to less cooling demand
Lower noise generation of Injection moulding servo motors	Less effort required for noise insulation

Features

• Compact design & high power density
• Rare Earth high energy magnets
• Constant Torque (rated) on entire speed range
• Low Noise & vibration levels
• Totally enclosed design
• Low rotor inertia

TECHNICAL SPECIFICATION

• Enclosure IP 54
• Temperature Protection for windings, thermister / thermal switch
• Insulation Class F
• Cooling forced air cooling by axial blower motor.
• Frame : Cast Iron & Mounting as per standard drawing foot cum flange
• Bearings Deep groove ball bearings.
• Speed Feedback at N.D.E.
  • Incremental / sin cos encoder
  • Resolver
• Number of Poles 8 / 6
• Rated Voltage 380 V (Max.), 3 Phase.

Energy resources worldwide are depleting at very high rate and energy conservation is becoming the norm of the day. With stricter energy consumption norms worldwide Energy Efficient Motors are manufactured in IEE efficiency classes (I, II, III) as per customer requirement. Energy efficient motors, also called premium or high- efficiency motors, are 2 to 8% more efficient than standard motors. Motors qualify as"energy-efficient" if they meet or exceed the efficiency levels listed in the National Electric Manufacturers Association's (NEMA's) MG1-1993 publication. Energy efficient motors owe their higher performance to key design improvements and more accurate manufacturing tolerances. Lengthening the core and using lower-electrical-loss steel, thinner stator laminations, and more copper in the windings reduce electrical losses in Energy efficient motors. Improved bearings and a smaller, more aerodynamic cooling fan further increase efficiency in the design of Energy efficient motors Energy efficient motors should be considered for all new installations, replacement of failed motors, or as spares. Energy efficient motors are frequently a cost-effective alternative to rewinding, and are sometimes an economic substitute for well-functioning motors in high-duty applications.

We are manufacturing CE marked SPECIAL MOTORS , TUV Nord India has certified our motors. We are capable of supplying CE motors as per customer requirements and directives of the CE. Mark Elektriks is manufacturing EN compliant motors as per need of the customer. We have certified our motors to EN 60079-0 and 31 for use in pharmaceutical industry in a dust environment. These motors have been certified by TUV India.

Stainless Steel Motors

These motors are manufactured by us for Nuclear applications and are special motors.

With 43 years of serving various industries we have the technical know-how to manufacture Special motors / Custom motors in terms of mechanical requirements and electrical characteristics as per Client application.

We have manufactured Special motors in terms of

• Low voltage special motors
• Electrolysis nickel coated motor
• Mechanical shape as per required dimensions
• Special materials (SS304L, 17-4Ph etc.)
• Torque speed characteristic special
• Special bearings
• Stalling torque special motors
• Efficiency class special motors
• Mounting arrangement of motor
• Special cooling provisions
• Rotor construction
• Special stampings
• Low inertia special motors
• Low temperature rise
• Compliance to specific EN / IEC standard special motors

• SIEMENS-GERMANY,
• RELIANCE ELECTRIC - USA,
• SHINKO- JAPAN ,
• MEIDENSHA- JAPAN,
• DEMAG - GERMANY ETC.

Textile Machinery, Plastic machinery, Conveyor drives, wire drawing units, printing, sugar machinery, centrifuges, pumps and blowers, press drives in metal forming/stamping, paper industry

Features of Eddy Current coupling

• Electro-magnetic principle combined with a simple closed loop control delivers good speed regulation with a smooth transition of Torque
• Air-cooled Brushless Design
• Speed Controllers like servomotorised pot meter, multiple drive syncronisation etc. are also available on request

Types

• Integral Type (with drive motor)
• Modular Type

Range

0.37 KW (0.5 hp) to 7.5 KW (10 hp) (Higher hp on enquiry)

Features

• Eddy Current Drives with integral type eddy current brake suitable for hoisting and lowering application available
• Eddy current brakes are non-contact type magnetic brakes and can be used in application where braking torque is to be applied at different speeds
• Eddy current brakes can be customised to client requirements

Gearless Elevator Motors-Ascent Series (Machine roomless MRL elevator motor)

Mark Elektriks brings to the Indian customers a world class technology of Gearless Permanent Magnet Machines for Elevator motors, under the ASCENT brand of Gearless elevator machines for Home lift, 4 passengers, 6 passenger, 8 passengers. The ASCENT Series of Gearless elevator motors (Machine roomless MRL elevator motor) brings many advantages over the conventional Geared elevator motors.

Benefits:

Mark gearless elevator motors are permanent magnet synchronous machines (Machine roomless MRL elevator motor) and distinguish themselves with:

• Simple installation
• Suitable for elevators with or without machine room (Machine roomless MRL elevator motor)
• High efficiency and Energy Saving of more than 30%
• Manual brake release
• Quiet and smooth operation for passenger comfort
• Maintenance free operation and Easy adjustment
• Package solution (motor + inverter)
• It is also equipped with a manual release device for emergency evacuation in case of powerloss
• Certified brake (certification in process)

The Ascent elevator motor series is specially designed for Machine roomless MRL elevators in suspension 2:1

Why Us?

• More than 25 years experience in Permanent Magnet Synchronous Motor.
• More than 45 years experience in special motors
• Indigenously manufactured hence cost effective
• Being Indian Manufacturer easy technical and service back up
• Several Machine roomless MRL elevator motor

Home Lift

• We bring to you a compact easy to install Gearless Lift Motor
• Motor for small homes.
• Rated Load Upto 4 persons (280 Kg)
• Rated Speed 0.3 to 0.6 m/s
• Travel Height upto 18 m
• Suspension 2 : 1
• Brake :
  • Dual independent side brake
  • Dual rotate disc brake mounting at motor back side

GEM 6 ( 6 passengers)

• Rated Load Upto 6 persons (420Kg)
• Rated Speed 1 m/s
• Brake : Dual independent side brake
• Sheave dia. : 320 mm
• Main shaft load 1500 Kg.
• Suspension 2 : 1

Customized DIRECT TORQUE MOTORS

Standard DIRECT TORQUE MOTORS can be customised to suit application requirement

In applications where accurate speed control and speed holding is critical. They are extremely useful in applications where speed synchronism between different machines is required e.g. Synthetic fibre industry, glass making machinery, textiles etc. Some of the applications for which these motors have been supplied :

• For use in glass making machinery --- Substitute for US & German motors
• For spinning metering pump 0.32/1.6 hp , 4 pole, 16-80 Hz , 54-220V, Foot mounting NEMA 182 frame
• For feed roll 5KW , 1500 rpm, 4 pole , 220V/50 Hz, suitable for frequency 25 to 130 Hz and 110V to 572V, flange mounted, 112 frame, TEFC type
• Friction Roll motor (Reluctance synchronous)0.625hp, 1500rpm(4 pole), 100V/50Hz, suitable for frequency 40 to 120 Hz and 80V, foot mounted, NEMA 42 frame -182, TESC type

Applications

Some of the application for which we have supplied motors are

• For upper and lower Godet 0.144KW, @1800rpm, 4pole, 19.5/60Hz, 65/200V, flange mounting as per Fuji Electric
• For service package roll (friction roll)0.202Kw, @1800rpm, 4pole, 19.5/60Hz, 65/200V, foot mounting
• Permanent Magnet Synchronous motor 0.37KW, @1500rpm(4pole), 125V/50Hz, suitable for 20 to 100Hz, 50 to 250 V, flange mounting type.

Ratings & Frame Sizes

0.25 Kw to 15 KW, 4/6/8 pole , Motors in NEMA and IEC frames available

• Starting torque value between 150 to 200 % of rated torque.
• Starting current value between 300 to 500 % of rated current.
• Pull out torque value between 140 to 160 % of rated torque.
• Pull out torque value between 120 to 140 % of rated torque.
• Pull out torque value between 140 to 160 % of rated torque.
• Pull in torque value between 120 to 140 % of rated torque.

Permanent magnet generators Wind Generators for wind mills for power generation upto 3KW, Single small turbines, below 100 kilowatts, are used for homes, telecommunications dishes, or water pumping. Small turbines are sometimes used in connection with diesel generators, batteries, and photovoltaic systems. These systems are called hybrid wind systems and are typically used in remote, off-grid locations, where a connection to the utility grid is not available.

With our expertise of over 25 years in Permanent magnet motors we are manufacturing small capacity Permanent magnet generators / Wind Generators.

Mark Elektriks has been supplying Permanent magnet generators / Wind Generators for low speed applications as per customer requirements and also as per our standard designs :

• Permanent magnet generators / Wind Generators for wind mills for power generation upto 3KWSingle small turbines, below 100 kilowatts, are used for homes, telecommunications dishes, or water pumping. Small turbines are sometimes used in connection with diesel generators, batteries, and photovoltaic systems. These systems are called hybrid wind systems and are typically used in remote, off-grid locations, where a connection to the utility grid is not available.
• Permanent magnet generators in educational institutions like IITs, Engineering colleges etc. in their laboratories for practical demonstrations and study.

Electro-magnetic principle combined with a simple closed loop control delivers good speed regulation with a smooth transition of Torque, Speed Controllers like servomotorised pot meter, multiple drive syncronisation etc. are also available on request.

High torque at low velocities, Integrated High-resolution sine encoder feedback devices provide exceptional accuracy, Motor enclosure IP 65. Deep, large spigots for motor covers, bearing caps & oil seals for shaft & bearings to prevent dust ingress in bearings & motor.

Mark Elektriks offers an Energy efficienct Servo Motors for pump for Injection Moulding, presses and hydraulic machines. Servo pumps (servo motor + pump) combine the advantages of hydraulic power transmission and an electrically controlled power actuator. By enabling optimal energy usage in the partial load range. Mark Elektriks offers energy-efficient and cost-effective Injection moulding servo motors for power outputs up to 50 KW. MARK PERMANENT MAGNET BRUSHLESS AC SERVO MOTORS (Injection moulding servo motors) when integrated with pump and controller, can be connected to your machine with ease. This allows you to significantly reduce the energy consumption of your injection moulding machine.

Suitable for elevators with or without machine room (Machine roomless MRL elevator motor), Quiet and smooth operation for passenger comfort, It is also equipped with a manual release device for emergency evacuation in case of powerloss.

Speed of Stall Torque Motor drops as it is loaded and reaches to zero as seen from the graph. After reaching zero speed, if the shaft of Torque Motor is rotated by force in opposite direction of normal rotation then the Torque Motor tries to resist it. (Please see graph below X-axis, which shows T N curves at different voltages) This means that when an energized Torque Motor is driven by an extended source against normal rotation it exerts an almost constant lacking torque on this extended source.

om the graph. After reaching zero speed, if the shaft of Torque Motor is rotated by force in opposite direction of normal rotation then the Torque Motor tries to resist it. (Please see graph below X-axis, which shows T N curves at different voltages) This means that when an energized Torque Motor is driven by an extended source against normal rotation it exerts an almost constant lacking torque on this extended source.

They are extremely useful in applications where speed synchronism between different machines is required e.g. Synthetic fibre industry, glass making machinery, textiles etc. For spinning metering pump 0.321.6 hp , 4 pole, 16-80 Hz , 54-220V, Foot mounting NEMA 182 frame, For feed roll 5KW , 1500 rpm, 4 pole , 220V50 Hz, suitable for frequency 25 to 130 Hz and 110V to 572V, flange mounted, 112 frame.

MARK PERMANENT MAGNET BRUSHLESS AC SERVO MOTORS FOR INJECTION MOULDING

Mark Elektriks offers an Energy efficienct Servo Motors for pump for Injection Moulding, presses and hydraulic machines. Servo pumps (servo motor + pump) combine the advantages of hydraulic power transmission and an electrically controlled power actuator. By enabling optimal energy usage in the partial load range. Mark Elektriks offers energy-efficient and cost-effective Injection moulding servo motors for power outputs up to 50 KW. MARK PERMANENT MAGNET BRUSHLESS AC SERVO MOTORS (Injection moulding servo motors) when integrated with pump and controller, can be connected to your machine with ease. This allows you to significantly reduce the energy consumption of your injection moulding machine.

Product benefitsCustomer benefits

Substantial Reduction in energy consumption and therefore reduced energy costs with Injection moulding servo motors	Quick Recovery of any higher initial costs for Injection moulding servo motors and servo drive usually within 1 year
Better control characteristics due to Injection moulding servo motors	Easy replacement of electronic-hydraulic variable pump
Integrated closed-loop control in converter; better hydraulic control	Ability to connect to machine controller without difficulty (Plug & Play) > Retrofits can be made without adapting the control system We have partners to provide retrofits
Higher efficiency than a controlled asynchronous motor with variable pump	Minimal operating costs
Close partnership with system manufacturer for optimal system design	Optimal design with respect to costs, noise and energy efficiency
Less heating, thus allowing a lesser cooling requirement	More compact machine design and additional cost reduction due to less cooling demand
Lower noise generation of Injection moulding servo motors	Less effort required for noise insulation

Features

• Compact design & high power density
• Rare Earth high energy magnets
• Constant Torque (rated) on entire speed range
• Low Noise & vibration levels
• Totally enclosed design
• Low rotor inertia

TECHNICAL SPECIFICATION

• Enclosure IP 54
• Temperature Protection for windings, thermister / thermal switch
• Insulation Class F
• Cooling forced air cooling by axial blower motor.
• Frame : Cast Iron & Mounting as per standard drawing foot cum flange
• Bearings Deep groove ball bearings.
• Speed Feedback at N.D.E.
  • Incremental / sin cos encoder
  • Resolver
• Number of Poles 8 / 6
• Rated Voltage 380 V (Max.), 3 Phase.

Energy resources worldwide are depleting at very high rate and energy conservation is becoming the norm of the day. With stricter energy consumption norms worldwide Energy Efficient Motors are manufactured in IEE efficiency classes (I, II, III) as per customer requirement. Energy efficient motors, also called premium or high- efficiency motors, are 2 to 8% more efficient than standard motors. Motors qualify as"energy-efficient" if they meet or exceed the efficiency levels listed in the National Electric Manufacturers Association's (NEMA's) MG1-1993 publication. Energy efficient motors owe their higher performance to key design improvements and more accurate manufacturing tolerances. Lengthening the core and using lower-electrical-loss steel, thinner stator laminations, and more copper in the windings reduce electrical losses in Energy efficient motors. Improved bearings and a smaller, more aerodynamic cooling fan further increase efficiency in the design of Energy efficient motors Energy efficient motors should be considered for all new installations, replacement of failed motors, or as spares. Energy efficient motors are frequently a cost-effective alternative to rewinding, and are sometimes an economic substitute for well-functioning motors in high-duty applications.

We are manufacturing CE marked SPECIAL MOTORS , TUV Nord India has certified our motors. We are capable of supplying CE motors as per customer requirements and directives of the CE. Mark Elektriks is manufacturing EN compliant motors as per need of the customer. We have certified our motors to EN 60079-0 and 31 for use in pharmaceutical industry in a dust environment. These motors have been certified by TUV India.

Stainless Steel Motors

These motors are manufactured by us for Nuclear applications and are special motors.

With 43 years of serving various industries we have the technical know-how to manufacture Special motors / Custom motors in terms of mechanical requirements and electrical characteristics as per Client application.

We have manufactured Special motors in terms of

• Low voltage special motors
• Electrolysis nickel coated motor
• Mechanical shape as per required dimensions
• Special materials (SS304L, 17-4Ph etc.)
• Torque speed characteristic special
• Special bearings
• Stalling torque special motors
• Efficiency class special motors
• Mounting arrangement of motor
• Special cooling provisions
• Rotor construction
• Special stampings
• Low inertia special motors
• Low temperature rise
• Compliance to specific EN / IEC standard special motors

• SIEMENS-GERMANY,
• RELIANCE ELECTRIC - USA,
• SHINKO- JAPAN ,
• MEIDENSHA- JAPAN,
• DEMAG - GERMANY ETC.

Textile Machinery, Plastic machinery, Conveyor drives, wire drawing units, printing, sugar machinery, centrifuges, pumps and blowers, press drives in metal forming/stamping, paper industry

Features of Eddy Current coupling

• Electro-magnetic principle combined with a simple closed loop control delivers good speed regulation with a smooth transition of Torque
• Air-cooled Brushless Design
• Speed Controllers like servomotorised pot meter, multiple drive syncronisation etc. are also available on request

Types

• Integral Type (with drive motor)
• Modular Type

Range

0.37 KW (0.5 hp) to 7.5 KW (10 hp) (Higher hp on enquiry)

Features

• Eddy Current Drives with integral type eddy current brake suitable for hoisting and lowering application available
• Eddy current brakes are non-contact type magnetic brakes and can be used in application where braking torque is to be applied at different speeds
• Eddy current brakes can be customised to client requirements

Gearless Elevator Motors-Ascent Series (Machine roomless MRL elevator motor)

Mark Elektriks brings to the Indian customers a world class technology of Gearless Permanent Magnet Machines for Elevator motors, under the ASCENT brand of Gearless elevator machines for Home lift, 4 passengers, 6 passenger, 8 passengers. The ASCENT Series of Gearless elevator motors (Machine roomless MRL elevator motor) brings many advantages over the conventional Geared elevator motors.

Benefits:

Mark gearless elevator motors are permanent magnet synchronous machines (Machine roomless MRL elevator motor) and distinguish themselves with:

• Simple installation
• Suitable for elevators with or without machine room (Machine roomless MRL elevator motor)
• High efficiency and Energy Saving of more than 30%
• Manual brake release
• Quiet and smooth operation for passenger comfort
• Maintenance free operation and Easy adjustment
• Package solution (motor + inverter)
• It is also equipped with a manual release device for emergency evacuation in case of powerloss
• Certified brake (certification in process)

The Ascent elevator motor series is specially designed for Machine roomless MRL elevators in suspension 2:1

Why Us?

• More than 25 years experience in Permanent Magnet Synchronous Motor.
• More than 45 years experience in special motors
• Indigenously manufactured hence cost effective
• Being Indian Manufacturer easy technical and service back up
• Several Machine roomless MRL elevator motor

Home Lift

• We bring to you a compact easy to install Gearless Lift Motor
• Motor for small homes.
• Rated Load Upto 4 persons (280 Kg)
• Rated Speed 0.3 to 0.6 m/s
• Travel Height upto 18 m
• Suspension 2 : 1
• Brake :
  • Dual independent side brake
  • Dual rotate disc brake mounting at motor back side

GEM 6 ( 6 passengers)

• Rated Load Upto 6 persons (420Kg)
• Rated Speed 1 m/s
• Brake : Dual independent side brake
• Sheave dia. : 320 mm
• Main shaft load 1500 Kg.
• Suspension 2 : 1

Customized DIRECT TORQUE MOTORS

Standard DIRECT TORQUE MOTORS can be customised to suit application requirement

In applications where accurate speed control and speed holding is critical. They are extremely useful in applications where speed synchronism between different machines is required e.g. Synthetic fibre industry, glass making machinery, textiles etc. Some of the applications for which these motors have been supplied :

• For use in glass making machinery --- Substitute for US & German motors
• For spinning metering pump 0.32/1.6 hp , 4 pole, 16-80 Hz , 54-220V, Foot mounting NEMA 182 frame
• For feed roll 5KW , 1500 rpm, 4 pole , 220V/50 Hz, suitable for frequency 25 to 130 Hz and 110V to 572V, flange mounted, 112 frame, TEFC type
• Friction Roll motor (Reluctance synchronous)0.625hp, 1500rpm(4 pole), 100V/50Hz, suitable for frequency 40 to 120 Hz and 80V, foot mounted, NEMA 42 frame -182, TESC type

Applications

Some of the application for which we have supplied motors are

• For upper and lower Godet 0.144KW, @1800rpm, 4pole, 19.5/60Hz, 65/200V, flange mounting as per Fuji Electric
• For service package roll (friction roll)0.202Kw, @1800rpm, 4pole, 19.5/60Hz, 65/200V, foot mounting
• Permanent Magnet Synchronous motor 0.37KW, @1500rpm(4pole), 125V/50Hz, suitable for 20 to 100Hz, 50 to 250 V, flange mounting type.

Ratings & Frame Sizes

0.25 Kw to 15 KW, 4/6/8 pole , Motors in NEMA and IEC frames available

• Starting torque value between 150 to 200 % of rated torque.
• Starting current value between 300 to 500 % of rated current.
• Pull out torque value between 140 to 160 % of rated torque.
• Pull out torque value between 120 to 140 % of rated torque.
• Pull out torque value between 140 to 160 % of rated torque.
• Pull in torque value between 120 to 140 % of rated torque.

Permanent magnet generators Wind Generators for wind mills for power generation upto 3KW, Single small turbines, below 100 kilowatts, are used for homes, telecommunications dishes, or water pumping. Small turbines are sometimes used in connection with diesel generators, batteries, and photovoltaic systems. These systems are called hybrid wind systems and are typically used in remote, off-grid locations, where a connection to the utility grid is not available.

With our expertise of over 25 years in Permanent magnet motors we are manufacturing small capacity Permanent magnet generators / Wind Generators.

Mark Elektriks has been supplying Permanent magnet generators / Wind Generators for low speed applications as per customer requirements and also as per our standard designs :

• Permanent magnet generators / Wind Generators for wind mills for power generation upto 3KWSingle small turbines, below 100 kilowatts, are used for homes, telecommunications dishes, or water pumping. Small turbines are sometimes used in connection with diesel generators, batteries, and photovoltaic systems. These systems are called hybrid wind systems and are typically used in remote, off-grid locations, where a connection to the utility grid is not available.
• Permanent magnet generators in educational institutions like IITs, Engineering colleges etc. in their laboratories for practical demonstrations and study.

Electro-magnetic principle combined with a simple closed loop control delivers good speed regulation with a smooth transition of Torque, Speed Controllers like servomotorised pot meter, multiple drive syncronisation etc. are also available on request.

High torque at low velocities, Integrated High-resolution sine encoder feedback devices provide exceptional accuracy, Motor enclosure IP 65. Deep, large spigots for motor covers, bearing caps & oil seals for shaft & bearings to prevent dust ingress in bearings & motor.

Mark Elektriks offers an Energy efficienct Servo Motors for pump for Injection Moulding, presses and hydraulic machines. Servo pumps (servo motor + pump) combine the advantages of hydraulic power transmission and an electrically controlled power actuator. By enabling optimal energy usage in the partial load range. Mark Elektriks offers energy-efficient and cost-effective Injection moulding servo motors for power outputs up to 50 KW. MARK PERMANENT MAGNET BRUSHLESS AC SERVO MOTORS (Injection moulding servo motors) when integrated with pump and controller, can be connected to your machine with ease. This allows you to significantly reduce the energy consumption of your injection moulding machine.

Suitable for elevators with or without machine room (Machine roomless MRL elevator motor), Quiet and smooth operation for passenger comfort, It is also equipped with a manual release device for emergency evacuation in case of powerloss.

Speed of Stall Torque Motor drops as it is loaded and reaches to zero as seen from the graph. After reaching zero speed, if the shaft of Torque Motor is rotated by force in opposite direction of normal rotation then the Torque Motor tries to resist it. (Please see graph below X-axis, which shows T N curves at different voltages) This means that when an energized Torque Motor is driven by an extended source against normal rotation it exerts an almost constant lacking torque on this extended source.