Top 15 Automatic Door Motor Manufacturers and Suppliers in Germany

Germany is one of the most demanding markets for automatic door motors, door operators, and intelligent motion-control systems. Buyers typically look beyond the motor itself and evaluate torque, speed control, operating cycles, noise, safety, energy efficiency, integration capability, customization, service support, and long-term reliability.

For OEMs and automatic-door system manufacturers, the best motor is not necessarily the cheapest one. A motor that runs quietly, handles repeated opening and closing, provides stable acceleration and deceleration, and integrates easily with sensors and door controllers can significantly reduce the total cost of ownership.

This guide reviews 15 automatic door motor manufacturers and suppliers relevant to the German market, with particular attention to motor technology, customization, product range, application suitability, and OEM purchasing considerations.

Important market note: The ranking below is organized for buyers looking for automatic-door motor and motion-control suppliers serving the German market. It is not a ranking limited strictly to companies headquartered in Germany. This distinction matters because specialist motor manufacturers such as JKONGMOTOR, BESFOC Motor, and LeanMotor can supply the motor/drive component to German automatic-door OEMs, while companies such as GEZE and GU Automatic primarily provide complete automatic-door systems and operators.

What Is an Automatic Door Motor?

An automatic door motor is the electromechanical drive element that converts electrical energy into controlled mechanical movement for opening, closing, positioning, or locking an automated door.

In a typical automatic sliding door, the motor works together with a controller, gearbox or transmission, encoder or Hall sensors, activation sensors, safety sensors, belts, pulleys, and mechanical door components.

The motor is responsible for delivering the torque required to move the door while the controller manages acceleration, deceleration, speed, direction, stopping, and safety functions.

For modern automatic doors, the most important motor characteristics include:

• High starting torque

• Smooth acceleration and deceleration

• Low acoustic noise

• High efficiency

• Long service life

• Stable operation under variable loads

• Compact dimensions

• Low maintenance requirements

• Precise speed control

• Compatibility with door controllers

• Encoder or Hall feedback

• Custom shaft and mounting configurations

• Reliable operation over millions of cycles

Types of Automatic Door Motors

Different door designs require different motor technologies. Choosing the correct motor architecture is one of the first decisions an OEM should make.

1. Brushless DC Motors

BLDC motors are widely used when automatic-door manufacturers need quiet operation, good efficiency, long service life, and relatively compact dimensions.

Because BLDC motors do not use mechanical brushes, they generally require less maintenance than brushed DC motors.

They are particularly suitable for:

• Sliding doors

• Automatic swing doors

• Access-control doors

• Elevator doors

• Hospital doors

• Commercial entrances

• Residential automatic doors

For high-cycle applications, BLDC technology can provide an attractive combination of efficiency, reliability, and compact size.

2. Integrated BLDC Servo Motors

An integrated BLDC servo motor combines the motor with electronics such as a driver, encoder, or controller.

This architecture can significantly reduce wiring and installation complexity. JKONGMOTOR, for example, offers integrated servo and BLDC motor platforms with options including Pulse, RS485 Modbus, CANopen, and EtherCAT communication.

This type of motor is particularly interesting for OEMs developing intelligent automatic-door operators where space inside the operator housing is limited.

3. Brushed DC Gear Motors

Brushed DC gear motors remain attractive for cost-sensitive automatic-door designs.

Their main advantages include:

• Simple control

• Low initial cost

• High starting torque

• Straightforward electronics

• Easy integration

The disadvantages are brush wear, electrical noise, and potentially shorter maintenance intervals compared with brushless designs.

4. Geared Motors

A gearbox can increase output torque and reduce output speed.

For heavier doors, a geared automatic door motor may be more appropriate than a high-speed motor connected directly to the door mechanism.

Common gearbox types include:

• Planetary gearboxes

• Spur gearboxes

• Worm gearboxes

• Helical gearboxes

The correct gear ratio depends on door weight, pulley diameter, desired travel speed, acceleration, and duty cycle.

5. Servo Motors

Servo motors are particularly valuable when an automatic door requires accurate positioning, programmable motion profiles, or sophisticated feedback.

A servo system can continuously monitor position and speed and adjust motor output accordingly.

This makes servo technology suitable for:

• High-end automatic doors

• Hospital doors

• Industrial doors

• Security entrances

• High-cycle doors

• Smart building systems

  Jkongmotor ODM OEM Customized Bldc Motor Types

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Advantages and Limitations of Automatic Door Motors

Automatic door motors are a critical part of modern automatic sliding doors, swing doors, revolving doors, hospital doors, commercial entrances, and smart access systems. The motor provides the mechanical force needed to move the door, while the controller, sensors, encoder, gearbox, and transmission system determine how smoothly and safely that movement occurs.

For OEM manufacturers and system integrators, choosing the right automatic door motor requires more than checking rated power. Torque, speed, duty cycle, noise, efficiency, feedback, gearbox configuration, safety integration, and customization all affect the final performance of the door system.

Modern power-operated pedestrian doors are also subject to safety requirements. EN 16005 covers powered pedestrian sliding, swing, revolving, balanced, and folding doors and addresses hazards associated with movement, control systems, energy sources, crushing, impact, shearing, and unintended activation.

Advantages of Automatic Door Motors

1. Hands-Free and Convenient Operation

The biggest advantage of an automatic door motor is simple: the user does not need to manually open or close the door.

Sensors detect approaching pedestrians and send a signal to the door controller. The controller then commands the motor to open the door at a controlled speed.

This makes automatic doors particularly useful in:

• Hospitals and healthcare facilities

• Shopping centers

• Airports and railway stations

• Hotels

• Office buildings

• Supermarkets

• Restaurants

• Banks

• Residential buildings

• Public facilities

Hands-free operation is especially useful when users are carrying luggage, equipment, shopping bags, or medical supplies.

2. Improved Accessibility

Automatic doors can make entrances easier to use for people with limited mobility, elderly users, wheelchair users, and people carrying heavy objects.

A properly designed system can automatically control opening force, movement speed, and closing behavior instead of requiring users to push or pull a heavy door.

For applications involving elderly, disabled, or young users, EN 16005 specifically requires risk assessment to consider prevention of contact between moving door leaves and users.

3. Smooth and Controlled Door Movement

A modern automatic door motor can provide much more than simple ON/OFF movement.

With appropriate motor control, the system can implement:

• Soft start

• Acceleration control

• Constant-speed movement

• Deceleration

• Soft stopping

• Position control

• Adjustable opening speed

• Adjustable closing speed

This is one reason BLDC motors and servo motors are increasingly attractive for advanced automatic-door systems.

A controlled acceleration profile reduces mechanical shock and can improve the perceived quality of the door.

4. High Operating Efficiency

Automatic doors can operate repeatedly without requiring users to manually move the door.

For high-traffic buildings, this can improve pedestrian flow and reduce unnecessary physical effort.

A high-efficiency BLDC automatic door motor can also reduce electrical losses compared with some traditional brushed motor designs, particularly when the motor and controller are properly matched to the load.

The overall efficiency of the door system, however, depends on more than the motor. Gearbox efficiency, belt transmission, bearing friction, controller losses, and door alignment also affect energy consumption.

5. Long Service Life

Brushless motors have no mechanical brushes or commutators that require periodic replacement.

This can make BLDC and integrated servo motors attractive for automatic doors that operate many times per day.

A well-designed system can reduce maintenance associated with brush wear and support high-cycle operation.

However, motor life still depends heavily on:

• Bearing quality

• Gearbox design

• Operating temperature

• Load conditions

• Acceleration profile

• Installation quality

• Duty cycle

• Door alignment

Therefore, "brushless" should not automatically be interpreted as "maintenance-free."

6. Low Noise Potential

Noise is an important consideration for automatic doors installed in:

• Hospitals

• Hotels

• Offices

• Libraries

• Residential buildings

• Premium retail environments

A properly selected BLDC motor combined with a low-noise gearbox and suitable control algorithm can provide very smooth operation.

It is worth noting that EN 16005 treats noise primarily as a comfort consideration rather than a significant safety hazard.

For OEMs, however, low acoustic noise can still be an important product-differentiation factor.

7. Precise Position and Speed Control

Automatic doors increasingly require accurate control rather than basic motor rotation.

Adding an encoder allows the controller to determine motor position and speed.

This can support:

• Accurate opening position

• Controlled closing

• Repeatable movement

• Obstacle detection strategies

• Speed adjustment

• Motion-profile optimization

• Fault monitoring

For advanced automatic-door operators, an integrated servo motor with encoder feedback can simplify the architecture by combining the motor and motion-control electronics into a compact assembly.

8. Flexible Motor and Gearbox Configurations

Automatic doors vary significantly in weight and mechanical structure.

A lightweight interior sliding door may need a compact motor, while a large commercial entrance may require significantly higher output torque.

Motor manufacturers can provide different combinations of:

• BLDC motor

• DC motor

• Servo motor

• Planetary gearbox

• Spur gearbox

• Worm gearbox

• Encoder

• Brake

• Customized shaft

• Customized flange

This allows OEMs to select the motor according to the actual mechanical requirements rather than forcing every application to use the same motor.

9. Easy Integration With Smart Building Systems

Modern automatic doors can be connected to wider building-control systems.

Depending on the motor and controller architecture, integration may include:

• Digital I/O

• RS485

• Modbus RTU

• CANopen

• Ethernet-based communication

• Access-control systems

• Security systems

• Building management systems

This makes the automatic door part of a broader smart building or intelligent access-control system.

10. Reduced Physical Contact

Automatic doors can reduce the number of surfaces that users need to touch.

This is particularly valuable in:

• Hospitals

• Clean environments

• Food-service facilities

• Laboratories

• Public buildings

The motor itself does not provide the hygiene benefit; rather, the combination of automatic activation and appropriate door design reduces the need for users to physically operate the door.

Limitations of Automatic Door Motors

Despite their advantages, automatic door motors also introduce additional technical and economic considerations.

1. Higher Initial System Cost

An automatic door generally costs more than a conventional manually operated door.

The motor is only one part of the additional cost.

The complete system may require:

• Motor

• Controller

• Sensors

• Encoder

• Gearbox

• Belt and pulley

• Safety devices

• Control panel

• Installation

• Commissioning

• Maintenance

For low-traffic applications, the additional investment may not always be justified.

2. More Complex System Architecture

A manual door is mechanically simple.

An automatic door may involve several interconnected components:

Sensor → Controller → Motor Driver → Motor → Gearbox → Transmission → Door Leaf

A fault in any part of this chain can affect the complete system.

For OEM manufacturers, this means that system-level engineering and compatibility testing are extremely important.

3. Safety Requirements Are More Demanding

A powered door is not simply a motorized version of a manual door.

The motor can generate enough force to create hazards if the control system, sensors, mechanical components, or safety functions are improperly designed.

EN 16005 identifies risks including:

• Uncontrolled door movement

• Crushing

• Impact

• Shearing

• Drawing-in

• Unsafe restart

• Unintended activation

• Failure of protective devices

It also specifies safety-related requirements for control systems and protective measures.

Therefore, OEMs should evaluate the complete door system, not just the motor specification.

4. Motor Selection Can Be Difficult

Choosing a motor based only on rated watts can lead to poor results.

Two motors with the same rated power can behave very differently because of differences in:

• Rated torque

• Peak torque

• Speed

• Gear ratio

• Efficiency

• Controller characteristics

• Encoder resolution

• Thermal capacity

For automatic doors, the more useful starting parameters are often door mass, required opening speed, pulley diameter, acceleration, transmission efficiency, and duty cycle.

5. Mechanical Misalignment Can Reduce Performance

Even a high-quality motor can perform poorly if the door mechanism is not correctly installed.

Problems such as:

• Misaligned tracks

• Excessive belt tension

• Damaged bearings

• Poor pulley alignment

• Excessive friction

• Door leaf deformation

can increase motor load.

The result may be higher current consumption, overheating, noise, vibration, or premature gearbox and bearing wear.

6. Continuous High-Cycle Operation Creates Thermal Stress

Automatic doors in busy locations can operate hundreds or thousands of cycles per day.

Repeated acceleration and deceleration generate heat in the motor and drive electronics.

When selecting a motor, OEMs should therefore consider:

• Continuous current

• Peak current

• Thermal resistance

• Ambient temperature

• Housing heat dissipation

• Duty cycle

• Gearbox temperature

• Controller temperature

A motor that performs well during a short laboratory test may not necessarily perform well under continuous commercial operation.

7. Maintenance Is Still Necessary

Automatic doors are not maintenance-free systems.

Even when a BLDC motor eliminates brush replacement, other components can still wear.

Maintenance may involve:

• Cleaning sensors

• Inspecting belts

• Checking rollers

• Inspecting bearings

• Checking gearbox condition

• Testing safety devices

• Checking door alignment

• Verifying opening and closing speed

• Testing emergency functions

Industry guidance emphasizes that automatic doors require ongoing servicing and safety verification rather than simply being installed and left unattended.

8. Sensor or Controller Failures Can Stop the Door

An automatic door depends on electronics.

A faulty activation sensor may prevent opening.

A faulty safety sensor may prevent closing.

A controller fault may disable the entire operator.

For this reason, reliable fault detection and appropriate fail-safe behavior are important design considerations.

9. Customization Can Increase Development Time

OEM customers sometimes require a motor with:

• Special shaft dimensions

• Custom mounting holes

• Specific gearbox ratio

• Special encoder

• Custom cable length

• Particular connector

• Specific voltage

• Custom communication protocol

These modifications can provide a better final product but may increase:

• Engineering cost

• Sample-development time

• Testing requirements

• Minimum order quantity

• Production lead time

For this reason, OEMs should discuss customization requirements with the motor manufacturer early in the development process.

Automatic Door Motor Advantages vs. Limitations

How to Reduce the Limitations of Automatic Door Motors

The best way to overcome these limitations is to select the motor as part of the complete automatic-door motion system.

Select the Correct Torque

Do not choose the motor solely according to wattage. Calculate the actual mechanical torque required by the door.

Use Feedback When Necessary

For applications requiring accurate positioning and repeatable motion, consider an encoder or servo motor.

Match the Gear Ratio

The gearbox should provide enough output torque without forcing the motor to operate inefficiently.

Design the Safety System Separately

The motor should not be treated as the only safety component. Sensors, controllers, protective devices, and mechanical design must work together.

Test the Complete Door Operator

OEM testing should include:

• Maximum door load

• Minimum and maximum temperature

• Repeated opening and closing

• Power interruption

• Sensor failure

• Obstacle detection

• Emergency operation

• Long-duration cycling

Work With an OEM Motor Manufacturer

For large-volume projects, a manufacturer capable of customizing the motor, gearbox, encoder, mounting flange, shaft, cable, and controller interface can reduce integration problems.

Final Conclusion

Automatic door motors provide major advantages in convenience, accessibility, controlled movement, efficiency, high-cycle operation, and smart building integration. BLDC motors, geared motors, and servo-based solutions can provide different combinations of torque, efficiency, precision, and service life.

At the same time, automatic door motors introduce additional complexity. Safety, motor sizing, thermal performance, mechanical alignment, sensor reliability, controller compatibility, and maintenance must all be considered.

For OEM manufacturers, the ideal solution is rarely the motor with the highest rated power or lowest purchase price. The better approach is to match the motor and gearbox to the door's actual mechanical load, operating cycle, speed requirements, control architecture, and safety strategy.

For advanced automatic-door applications, an integrated BLDC or servo motor with encoder feedback and a customized gearbox can be an especially attractive architecture because it combines compact mechanical design with precise electronic control.

Ultimately, the best automatic door motor is one that delivers the required torque, speed, reliability, safety, noise performance, and service life while integrating cleanly into the complete door operator.

Top 15 Automatic Door Motor Manufacturers in Germany

1. JKONGMOTOR

Company Profile

JKONGMOTOR is a motion-control manufacturer specializing in stepper motors, BLDC motors, integrated servo motors, DC servo motors, and customized motor solutions.

For automatic-door OEMs, its most interesting products are integrated BLDC and servo motor platforms. JKONGMOTOR specifically presents integrated servo motors as solutions for automatic doors and windows, combining the motor, feedback, and drive electronics into a compact package.

Its product portfolio includes motor sizes from compact NEMA-frame products through higher-power integrated servo solutions.

Main Products

• Integrated BLDC motors

• Integrated DC servo motors

• Integrated stepper servo motors

• Brushless DC motors

• DC servo motors

• Geared motors

• Planetary geared motors

• Encoders

• Motor drivers

• Customized OEM/ODM motors

The company supports communication options such as Pulse, RS485 Modbus, CANopen, and EtherCAT, while encoder, gearbox, brake, shaft, and protection options can be configured for different applications.

For example, its JKIDC60-C124A1 integrated BLDC servo motor is specified at 200 W, 24 V, 3,000 rpm, and 0.63 Nm, with a 17-bit absolute encoder and CANopen capability.

Advantages

• Strong OEM/ODM customization capability

• Integrated motor and controller solutions

• Multiple communication options

• BLDC and servo technology

• Encoder and gearbox customization

• Compact integrated designs

• Suitable for high-volume OEM projects

• Broad motor portfolio

For automatic-door manufacturers that want to develop their own operator instead of purchasing a complete door system, this component-level flexibility can be particularly valuable.

2. BESFOC Motor

Company Profile

BESFOC Motor is a Chinese motion-control manufacturer established in 2011. The company focuses on integrated motors, stepper motors, BLDC motors, linear motion products, and related motion-control components.

According to its company information, BESFOC exports products to more than 30 countries and regions and has an annual shipment volume exceeding two million motors and drivers.

Main Products

• Integrated stepper motors

• Integrated BLDC motors

• Brushless DC motors

• Stepper motors

• Linear stepper motors

• Motor drivers

• Gearboxes

• Encoders

• Linear motion systems

Advantages

• Broad integrated-motor portfolio

• OEM and customized motor solutions

• BLDC and stepper technology

• Integrated driver options

• Gearbox and encoder options

• International export experience

• Suitable for automation equipment manufacturers

BESFOC can be considered when a German OEM needs a customized motor component rather than a complete automatic-door system.

3. LeanMotor

Company Profile

LeanMotor focuses on compact motion-control and motor solutions for automation equipment manufacturers. Its product positioning makes it relevant to OEMs searching for compact motors, integrated motor systems, and customized motion solutions.

Main Products

• BLDC motors

• Integrated motors

• Servo motors

• Stepper motors

• Geared motors

• Customized motor assemblies

• Motor control solutions

Advantages

• OEM-oriented product development

• Compact motor solutions

• Customization flexibility

• Suitable for automation equipment

• Focus on integrated motion systems

For automatic-door manufacturers, LeanMotor can be considered where compact dimensions, motor integration, and customized mechanical interfaces are important.

4. GEZE

Company Profile

GEZE GmbH is one of the best-known German companies in door, window, and building automation technology. Its headquarters and major development and production operations are located in Leonberg near Stuttgart.

GEZE has operated as a family-owned company since 1863 and reported more than €525 million in revenue for fiscal year 2024/25.

Main Products

• Automatic sliding doors

• Automatic swing doors

• Revolving doors

• Door operators

• Door controls

• Safety sensors

• Window automation

• Building automation systems

Advantages

• Strong German engineering background

• Extensive automatic-door portfolio

• Building automation integration

• Strong safety expertise

• Wide application experience

• Established service infrastructure

• Suitable for demanding commercial projects

GEZE's automatic-door portfolio covers sliding, revolving, swing, telescopic, folding, and specialized door systems.

5. GU Automatic

Company Profile

GU Automatic GmbH is part of the Gretsch-Unitas Group and develops automatic entrance systems in Rietberg, Germany.

The company provides automatic door systems, operators, revolving doors, sliding doors, access-control solutions, and related components.

Main Products

• Automatic sliding doors

• Swing-door operators

• Revolving doors

• Door closers

• Escape-route door systems

• Access-control systems

• Door accessories

Advantages

• German production

• Complete automatic-door solutions

• Strong service network

• Customized entrance solutions

• Experience with escape-route systems

• Suitable for commercial buildings

GU Automatic states that it develops and produces its products at its Rietberg location and maintains a nationwide service network.

6. dormakaba

Company Profile

dormakaba is a major access-control and door-automation company with German roots and headquarters in Ennepetal.

Its portfolio extends from mechanical locking systems to electronic access control and automatic doors.

Main Products

• Automatic sliding-door operators

• Swing-door operators

• Revolving-door systems

• Access-control systems

• Door hardware

• Electronic locking systems

• Safety and security solutions

Advantages

• Broad access-control portfolio

• Strong international presence

• Automatic-door expertise

• System-level integration

• Large service network

• Suitable for commercial and institutional buildings

7. DEUTSCHTEC

Company Profile

DEUTSCHTEC is a German automatic-door system manufacturer offering entrance solutions developed and manufactured in Germany.

The company emphasizes German design, development, manufacturing, quality control, and automatic-door technology.

Main Products

• Automatic sliding doors

• Revolving doors

• Entrance systems

• Automatic door operators

• Door controls

• Customized entrance solutions

Advantages

• Made-in-Germany positioning

• Automatic-door specialization

• Custom entrance designs

• Engineering expertise

• Suitable for commercial projects

8. Erichsen Automatic Door

Company Profile

Erichsen Automatic Door specializes in automatic sliding-door systems and automatic door operators.

Its products are positioned around quiet, reliable, processor-controlled operation and German manufacturing.

Main Products

• Automatic sliding-door operators

• Sliding-door systems

• EAD series operators

• Control systems

• Door automation components

Advantages

• German-made operators

• Quiet operation

• Processor-controlled systems

• Stand-alone or networked operation

• Million-cycle testing

• Focused automatic-door specialization

9. TORMAX

Company Profile

TORMAX is a major automatic-door and door-operator brand with a long history in automatic entrance technology.

The first TORMAX automatic door drive dates back to 1951. Today, the company operates through a global network of group companies and distributors.

Main Products

• Sliding-door operators

• Swing-door operators

• Revolving doors

• Automatic entrance systems

• Industrial door solutions

Advantages

• Long industry history

• Strong automatic-door specialization

• Global support

• Broad application experience

• Suitable for commercial and public buildings

10. ASSA ABLOY Entrance Systems

Company Profile

ASSA ABLOY Entrance Systems is a global entrance-automation business supplying automatic doors and related entrance technologies throughout the European and German markets.

Main Products

• Automatic sliding doors

• Swing doors

• Revolving doors

• Industrial doors

• High-speed doors

• Entrance automation systems

Advantages

• Global engineering resources

• Broad entrance portfolio

• Strong commercial infrastructure

• Access-control integration

• Large service organization

11. NABCO

Company Profile

NABCO is an established automatic-door technology company with international operations and a significant presence in commercial entrance automation.

Main Products

• Automatic sliding doors

• Swing-door systems

• Revolving doors

• Automatic operators

• Door sensors and controls

Advantages

• Long automatic-door experience

• Strong commercial applications

• Reliable operator technology

• International support

• Suitable for high-traffic buildings

12. FAAC

Company Profile

FAAC is an international manufacturer of automated access systems and entrance automation products, with solutions used across commercial, residential, and industrial applications.

Main Products

• Automatic door operators

• Sliding-door automation

• Swing-door operators

• Gate automation

• Access-control systems

Advantages

• Broad automation portfolio

• European market experience

• Residential and commercial applications

• Integrated access solutions

• Multiple automation technologies

13. Record

Company Profile

record is a specialist in automatic door systems and entrance automation, serving commercial and institutional projects internationally.

Main Products

• Automatic sliding doors

• Swing doors

• Revolving doors

• Hermetic doors

• Door operators

• Access solutions

Advantages

• Automatic-door specialization

• Strong European presence

• Hospital and healthcare applications

• Customized entrance solutions

• Complete door-system approach

14. Besam / ASSA ABLOY Automatic Doors

Company Profile

Besam is a recognized automatic-door brand associated with ASSA ABLOY Entrance Systems. Its technology is used in commercial buildings, healthcare facilities, retail environments, and other locations requiring automated pedestrian access.

Main Products

• Sliding-door operators

• Swing-door operators

• Automatic entrance systems

• Sensors and accessories

• Access-control integration

Advantages

• Strong European market presence

• Broad automatic-door expertise

• Suitable for high-traffic environments

• Integration with entrance solutions

• Established service infrastructure

15. GEZE-Compatible OEM Motor Suppliers

Company Profile

For German automatic-door OEMs, another important supplier category is the specialized OEM motor manufacturer rather than a complete automatic-door brand.

These manufacturers provide motors, gear motors, encoders, integrated drives, and customized assemblies that can be incorporated into an OEM's proprietary automatic-door operator.

Main Products

• BLDC motors

• DC gear motors

• Integrated servo motors

• Encoder motors

• Planetary gear motors

• Worm gear motors

• Customized shafts

• Customized mounting flanges

Advantages

• Lower BOM complexity

• Custom mechanical interfaces

• Flexible voltage options

• OEM customization

• Potentially lower component cost

• Easier adaptation to proprietary door mechanisms

This category is particularly relevant when a German company wants to develop its own automatic-door operator rather than purchase a complete branded door system.

How to Choose an Automatic Door Motor for the German Market

Selecting a motor should start with the mechanical requirements rather than simply choosing a popular motor brand.

1. Calculate Door Weight

Door weight is one of the most important parameters.

A lightweight interior sliding door may need a completely different motor from a large glass entrance door.

The calculation should consider:

• Door leaf weight

• Number of leaves

• Pulley diameter

• Belt transmission

• Mechanical friction

• Acceleration

• Required opening speed

• Environmental resistance

2. Determine Required Torque

The motor must provide sufficient torque during starting and acceleration.

A motor that works adequately at constant speed may still fail during startup if the available starting torque is insufficient.

For heavy doors, a geared BLDC motor or servo motor may be preferable.

3. Consider Operating Cycles

Automatic doors in airports, hospitals, supermarkets, and shopping centers may operate hundreds or thousands of times per day.

Therefore, buyers should evaluate:

• Continuous operating time

• Duty cycle

• Peak current

• Thermal performance

• Bearing life

• Gearbox life

• Encoder reliability

• Expected number of cycles

4. Evaluate Noise

Noise is often underestimated during motor selection.

Hospitals, hotels, offices, residential buildings, and premium retail stores generally benefit from low-noise BLDC motors and optimized gearboxes.

A motor can be electrically efficient yet still produce unacceptable mechanical noise if the gearbox, bearings, belt, or mounting system is poorly designed.

5. Choose the Right Feedback

Feedback options may include:

• Hall sensors

• Incremental encoders

• Absolute encoders

• Magnetic encoders

For simple doors, Hall feedback may be adequate.

For advanced positioning and intelligent door control, an encoder-based servo system can provide better control.

6. Check Controller Compatibility

Before ordering motors, OEM buyers should confirm:

• Voltage

• Current

• Control signal

• Direction input

• Speed command

• Encoder output

• Communication protocol

• Fault signal

• Brake requirements

A motor that looks ideal mechanically may become difficult to integrate if its electrical interface does not match the existing door controller.

Automatic Door Motor Applications

Automatic door motors are used in far more applications than standard building entrances. As automatic doors become smarter, quieter, safer, and more energy-efficient, motor technology is increasingly being integrated into commercial buildings, hospitals, hotels, transportation facilities, industrial equipment, cleanrooms, residential buildings, and smart access-control systems.

For OEMs, choosing the right automatic door motor depends on the door type, door weight, opening speed, operating frequency, available installation space, control method, and safety requirements. BLDC motors, DC gear motors, integrated servo motors, and geared servo systems can all be used depending on the application.

The following are some of the most important applications of automatic door motors.

1. Automatic Sliding Doors

Automatic sliding doors are one of the most common applications for automatic door motors.

They are widely installed at:

• Shopping malls

• Supermarkets

• Office buildings

• Hotels

• Airports

• Hospitals

• Retail stores

• Train stations

• Apartment entrances

In a typical sliding-door system, the motor drives a pulley and belt or another transmission mechanism to move one or more door leaves along a track.

The motor needs to provide sufficient torque for starting and accelerating the door while maintaining smooth movement during opening and closing.

Recommended Motor Characteristics

For automatic sliding doors, OEMs commonly look for:

• Compact dimensions

• High starting torque

• Low operating noise

• Smooth acceleration

• Adjustable speed

• Long service life

• Encoder or Hall feedback

• High efficiency

• Gearbox compatibility

BLDC geared motors and integrated servo motors are particularly attractive for advanced sliding-door systems because they can combine compact size with controlled motion.

2. Automatic Swing Doors

Automatic swing doors use a motor-driven operator to rotate the door leaf around its hinge.

They are frequently used in:

• Hospitals

• Hotels

• Office buildings

• Restaurants

• Public buildings

• Elder-care facilities

• Accessibility entrances

Compared with sliding doors, swing doors place different mechanical demands on the motor because the motor must generate rotational torque through the operator mechanism.

The required motor torque depends on:

• Door weight

• Door width

• Hinge friction

• Opening angle

• Opening time

• Closing force

• Wind resistance

• Door closer mechanism

A geared DC motor or servo motor can be suitable when high output torque and controlled acceleration are required.

3. Hospital and Healthcare Doors

Hospitals represent one of the most demanding applications for automatic door motors.

Automatic doors are used in:

• Operating rooms

• Patient rooms

• Emergency departments

• Intensive-care areas

• Laboratories

• Pharmacies

• Hospital corridors

• Clean areas

Healthcare facilities typically require quiet, reliable, smooth, and high-cycle operation.

For example, an automatic hospital door may need to open smoothly without sudden acceleration and close in a controlled manner.

Motor selection should therefore consider:

• Low noise

• Stable speed control

• High cycle life

• Position feedback

• Easy cleaning

• Reliable operation

• Compact operator design

For specialized healthcare applications, the motor should be evaluated together with the complete door operator and safety system.

4. Cleanroom Automatic Doors

Cleanrooms require controlled access and minimal contamination.

Automatic doors can help reduce unnecessary physical contact and provide controlled access between different areas.

Typical applications include:

• Pharmaceutical factories

• Semiconductor facilities

• Medical-device manufacturing

• Biotechnology laboratories

• Food-processing facilities

• Research laboratories

In these environments, motor selection can involve additional considerations such as:

• Low particle generation

• Smooth motion

• Sealed construction

• Low vibration

• Low noise

• Reliable repeated operation

Depending on the environment, the complete door assembly may require specialized materials and sealing rather than simply a different motor.

5. Hotel Entrance Doors

Hotels often use automatic sliding, swing, or revolving doors at main entrances.

The motor must provide smooth movement while maintaining a premium user experience.

Hotel applications typically emphasize:

Quiet operation + smooth acceleration + attractive movement + reliability + low maintenance

A noisy gearbox or abrupt stopping behavior can negatively affect the perceived quality of the entrance.

For this reason, low-noise BLDC motors, precision gearboxes, and encoder-based control can be useful for premium hotel applications.

6. Shopping Mall and Retail Entrances

Retail environments can generate a high number of door cycles every day.

Automatic doors are used to:

• Improve customer access

• Increase pedestrian flow

• Reduce manual contact

• Improve accessibility

• Connect indoor and outdoor spaces

A shopping mall entrance may require the motor to operate continuously throughout business hours.

Therefore, the motor should be selected according to the actual duty cycle and thermal conditions, rather than simply its nominal power rating.

Important specifications include:

• Rated torque

• Peak torque

• Rated speed

• Gear ratio

• Operating cycles

• Motor temperature

• Encoder resolution

• Controller compatibility

7. Airport Automatic Doors

Airports are particularly demanding environments for automatic entrance systems.

Doors may operate continuously throughout the day while handling large numbers of passengers carrying luggage.

Applications include:

• Terminal entrances

• Security areas

• Boarding areas

• Retail zones

• Staff entrances

• Baggage areas

The motor and operator must be designed for high-cycle operation and reliable performance.

High efficiency, thermal stability, fast response, low noise, and robust mechanical construction are especially important.

For large airport projects, OEMs should also consider spare-parts availability and long-term technical support.

8. Railway and Metro Stations

Automatic doors are widely used in railway stations and metro facilities.

They can be installed at:

• Station entrances

• Ticketing areas

• Commercial zones

• Staff access points

• Platform-related facilities

• Building entrances

These environments can expose door systems to high traffic, dust, vibration, and temperature variation.

A robust motor and gearbox combination can help maintain reliable operation under these conditions.

9. Office Building Entrances

Modern office buildings increasingly use automatic entrances as part of broader smart building and access-control systems.

Automatic doors can connect with:

• RFID readers

• Keycard systems

• Facial-recognition systems

• Mobile access systems

• Security systems

• Building management systems

The motor itself may receive commands from the door controller while the access-control system determines whether the entrance should open.

This makes communication compatibility increasingly important for intelligent automatic-door systems.

10. Residential Automatic Doors

Automatic door motors are also used in residential environments.

Applications include:

• Apartment entrances

• Private homes

• Automatic interior doors

• Smart-home entrances

• Accessibility doors

• Garage access systems

Residential applications often prioritize:

• Compact size

• Low noise

• Low power consumption

• Attractive appearance

• Simple installation

• Reliable operation

For interior sliding doors, a compact BLDC gear motor can provide sufficient torque while keeping the operator relatively small.

11. Automatic Doors for People With Reduced Mobility

Accessibility is another important application.

Automatic doors can make entrances easier to use for:

• Wheelchair users

• Elderly people

• People carrying heavy objects

• People with limited mobility

• Users who cannot easily operate manual doors

The motor should provide controlled movement rather than excessive acceleration or closing force.

The complete system must also incorporate appropriate activation and safety mechanisms.

12. Restaurant and Food-Service Doors

Restaurants, commercial kitchens, and food-service facilities can use automatic doors to reduce unnecessary physical contact.

Applications include:

• Kitchen-to-dining-room doors

• Food-processing entrances

• Service corridors

• Storage areas

• Staff entrances

In these environments, automatic operation can be particularly convenient because employees may frequently carry trays, ingredients, boxes, or equipment.

Motor and door construction should also be selected according to the cleaning procedures and environmental conditions of the facility.

13. Industrial Automatic Doors

Automatic door motors are also used in factories and industrial buildings.

Applications include:

• Production-line entrances

• Warehouse doors

• Factory partitions

• Machine access doors

• Internal logistics areas

• Temperature-controlled rooms

Industrial applications can require substantially higher torque than standard pedestrian doors.

The motor may therefore be combined with:

• High-ratio gearbox

• Encoder

• Brake

• Industrial controller

• Customized shaft

• Heavy-duty bearings

For heavy industrial doors, mechanical load calculations should be completed before motor selection.

14. Warehouse and Logistics Facilities

Modern warehouses use automatic doors to support material flow and internal logistics.

Typical applications include:

• Warehouse entrances

• Loading areas

• Automated logistics zones

• Conveyor interfaces

• Cold-storage areas

• Distribution centers

Automatic doors may be triggered by:

• Photoelectric sensors

• Radar sensors

• RFID

• PLC signals

• AGV/AMR systems

• Warehouse management systems

When automatic doors interact with AGVs or AMRs, communication and response time become particularly important.

15. Cold Storage and Refrigerated Facilities

Automatic doors can help reduce unnecessary opening time in temperature-controlled environments.

They are used in:

• Cold storage

• Freezer rooms

• Food warehouses

• Pharmaceutical storage

• Refrigerated logistics facilities

The motor must be capable of operating reliably at the specified ambient temperature.

OEMs should verify:

• Low-temperature starting performance

• Lubricant characteristics

• Gearbox performance

• Cable flexibility

• Sealing

• Condensation resistance

In low-temperature environments, choosing the motor solely from its normal-temperature specifications can create unexpected reliability problems.

16. Security and Access-Control Doors

Automatic doors are frequently integrated with access-control systems.

The door can remain closed until the access-control system authorizes entry.

Possible interfaces include:

• Digital I/O

• RS485

• Modbus

• CAN

• Ethernet

• Dedicated controller interfaces

For these applications, the motor is only one component of the complete security architecture.

The system should also consider emergency release, manual override, power failure behavior, and appropriate safety requirements.

17. Automatic Revolving Doors

Revolving doors require continuous and controlled rotational movement.

The motor drives the central rotating structure while the controller regulates:

• Rotation speed

• Starting

• Stopping

• Direction

• Position

• Safety behavior

Because the mechanical system is different from a sliding or swing door, motor sizing must account for the rotational inertia of the complete door assembly.

Servo-based control can be useful where accurate rotational positioning and smooth speed regulation are required.

18. Automatic Glass Doors

Glass automatic doors are popular in:

• Retail stores

• Hotels

• Office buildings

• Banks

• Airports

• Commercial entrances

The motor must provide smooth movement because sudden acceleration or stopping can create unnecessary mechanical stress.

The overall design should consider the weight and dimensions of the glass door leaf, transmission efficiency, and required opening speed.

A compact geared BLDC motor can be a suitable solution where the operator has limited installation space.

19. Smart Building and IoT Automatic Doors

The development of smart buildings is creating new requirements for automatic door motors.

An intelligent automatic-door system may communicate with:

• Building management systems

• Access-control platforms

• Security systems

• IoT gateways

• Cloud monitoring platforms

• Fire alarm systems

An integrated motor with a digital communication interface can simplify the overall system architecture.

For OEMs, communication options such as RS485 Modbus, CANopen, or Ethernet-based protocols can provide greater flexibility than simple analog or digital control.

20. OEM and Customized Automatic Door Operators

One of the most important applications is not a specific type of building but OEM automatic-door equipment development.

A manufacturer may want to design its own automatic-door operator and therefore require a customized motor rather than a complete commercial door system.

Typical customization requirements include:

• 12 V, 24 V, or 48 V DC operation

• Custom shaft dimensions

• Custom mounting flange

• Integrated encoder

• Integrated driver

• Planetary gearbox

• Worm gearbox

• Customized cable

• Customized connector

• Brake

• Communication interface

• Customized firmware

For this type of project, an experienced OEM motor supplier can help optimize the motor around the customer's mechanical architecture.

Which Automatic Door Motor Is Best for Different Applications?

How to Select an Automatic Door Motor for a Specific Application

Before selecting a motor, OEMs should define the actual operating conditions.

Door Weight

The door mass directly affects the required motor torque.

Door Dimensions

A wider door can create different mechanical loads even when two doors have the same weight.

Opening Speed

Faster opening requires greater acceleration and potentially higher peak torque.

Duty Cycle

A door operating 50 times per day has very different requirements from one operating several thousand times per day.

Gear Ratio

The gearbox determines the relationship between motor speed and output torque.

Feedback

Choose Hall sensors for simpler systems or an encoder when more precise motion control is required.

Environment

Temperature, humidity, dust, vibration, and cleaning requirements can influence motor selection.

Control Architecture

Make sure the motor works with the existing controller and supports the required control signals or communication protocol.

Why BLDC Motors Are Increasingly Popular in Automatic Door Applications

For modern automatic doors, BLDC motors offer a useful combination of:

Efficiency + low maintenance + compact size + high cycle capability + controllability

Compared with conventional brushed DC motors, BLDC motors eliminate mechanical brush wear.

When combined with an encoder and integrated controller, the system can also achieve more accurate speed and position control.

For OEM automatic-door manufacturers, an integrated BLDC servo motor can provide an additional advantage by reducing external wiring and saving space inside the operator.

Final Considerations

Automatic door motors are used across a broad range of applications, from residential sliding doors to high-cycle airport entrances and industrial access systems.

The motor technology should always be selected according to the actual mechanical and operational requirements.

For lightweight residential doors, a compact DC or BLDC gear motor may be sufficient. For high-cycle commercial entrances, a high-efficiency BLDC motor with suitable gearing can provide a better balance of reliability and performance. For advanced smart doors requiring precise positioning and communication, an integrated servo motor with encoder feedback can be a more suitable architecture.

For OEM manufacturers, the most important selection criteria are not simply motor power or price. The complete combination of torque, speed, gearbox ratio, duty cycle, noise, thermal performance, feedback, communication, mechanical dimensions, safety integration, and customization capability determines whether the motor will perform reliably in the final automatic-door system.

A well-matched automatic door motor can provide smooth movement, long service life, low maintenance, and reliable operation while giving OEM manufacturers greater flexibility when developing next-generation automatic entrance solutions.

Automatic Door Motor vs. Complete Door Operator

This distinction is important for OEM purchasing.

A complete door operator normally includes the motor plus controller, transmission, sensors, mechanical components, and safety functions.

An automatic door motor is usually only one component of the complete system.

For a building owner, purchasing a complete operator can be simpler.

For an OEM manufacturer, however, purchasing the motor separately can provide greater control over:

• Door architecture

• Controller design

• Software

• Mechanical transmission

• Cost structure

• Product differentiation

• Supply chain

• Customization

This is why component-level motor suppliers such as JKONGMOTOR and BESFOC can be relevant alternatives to traditional complete-door-system manufacturers.

Why Integrated Motors Are Becoming More Attractive for Automatic Doors

An integrated motor can combine the motor, driver, feedback electronics, and communication interface into one package.

This approach can reduce:

Motor + external driver + encoder wiring + cabinet space + connectors

into a more compact motion-control module.

JKONGMOTOR specifically describes its integrated servo motors as combining the motor, drive, and encoder while reducing wiring complexity.

For automatic-door OEMs, potential benefits include:

• Smaller operator housing

• Fewer external components

• Reduced wiring

• Faster assembly

• Easier troubleshooting

• Better system integration

• Simplified BOM

• More flexible control

What German OEM Buyers Should Ask an Automatic Door Motor Manufacturer

Before placing a bulk order, we recommend asking the supplier:

1. What is the rated torque?

2. What is the peak torque?

3. What door weight can the motor handle?

4. What is the rated speed?

5. What is the maximum speed?

6. What voltage options are available?

7. Is an encoder included?

8. Which communication protocols are supported?

9. Is the motor available with a gearbox?

10. Can the shaft be customized?

11. Can the mounting flange be customized?

12. What is the expected service life?

13. What is the recommended duty cycle?

14. What safety functions are supported?

15. Can the motor be tested with our door controller?

16. Are samples available?

17. What is the MOQ?

18. What is the production lead time?

19. What documentation is available?

20. Can the supplier support OEM/ODM development?

These questions help separate a true OEM motor manufacturer from a trading company that simply resells standard motors.

Automatic Door Motor Manufacturer Comparison

Final Considerations for Automatic Door Motor Sourcing in Germany

The German automatic-door market has high expectations for safety, reliability, serviceability, efficiency, and engineering quality.

Complete automatic-door manufacturers such as GEZE, GU Automatic, dormakaba, and TORMAX are strong choices when the buyer needs a complete entrance system, operator, safety system, and service package.

For an OEM that is developing its own automatic-door operator, however, the purchasing criteria are different.

The focus shifts toward:

Motor torque + gearbox + encoder + controller compatibility + noise + thermal performance + cycle life + customization + price + supply stability.

This is where specialist motor manufacturers can provide a different value proposition.

For example, an integrated BLDC or servo motor can allow an automatic-door OEM to build a more compact operator with fewer external components. JKONGMOTOR's automatic-door application materials specifically highlight compact integration, precise control, energy efficiency, and safety-related motion control.

At the same time, buyers should not select a motor only according to rated power. The complete mechanical system matters. Door weight, pulley diameter, transmission efficiency, acceleration profile, friction, operating cycles, ambient temperature, safety requirements, and controller architecture all influence the final motor selection.

For German projects, compliance and maintenance also deserve attention. Automatic doors are subject to safety inspection and maintenance requirements, with DIN EN 16005, DIN 18650, and ASR A1.7 among the important regulatory references identified by German industry sources.

Ultimately, the best automatic door motor manufacturer is the supplier whose motor technology, customization capability, documentation, quality control, and technical support match the actual door application.

For OEM buyers, a supplier capable of providing BLDC motors, integrated servo motors, gearboxes, encoders, customized shafts, customized mounting interfaces, and control communication options from one source can significantly simplify product development and supply-chain management.

Frequently Asked Questions About Automatic Door Motors

1. What are automatic door motors used for?

Automatic door motors are used to open, close, and control doors automatically in sliding doors, swing doors, revolving doors, hospital entrances, hotels, shopping malls, airports, offices, warehouses, cleanrooms, and residential buildings.

2. Which type of motor is best for automatic doors?

The best motor depends on the door weight, speed, duty cycle, and control requirements. BLDC geared motors and servo motors are popular for applications requiring smooth motion, high efficiency, low noise, and reliable speed control.

3. Are BLDC motors suitable for automatic sliding doors?

Yes. BLDC motors are well suited to automatic sliding doors because they offer high efficiency, low maintenance, compact dimensions, and good speed-control capability. They can also be combined with gearboxes and encoders for higher torque and positioning accuracy.

4. Can automatic door motors be customized for OEM applications?

Yes. OEM automatic-door manufacturers can request customized shaft dimensions, mounting flanges, gearbox ratios, encoders, brakes, cables, connectors, voltage ratings, and communication interfaces according to their door operator design.

5. How do I choose the right automatic door motor?

Start with the door weight, door dimensions, required opening speed, pulley or transmission design, duty cycle, acceleration, environmental conditions, and available installation space. These parameters determine the required motor torque, speed, gearbox ratio, and feedback configuration.

6. Do automatic door motors need encoders?

Not every automatic door requires an encoder. Simple systems may use Hall sensors or basic feedback, while applications requiring accurate positioning, repeatable movement, speed regulation, and advanced motion control can benefit from an encoder-based servo motor.

7. What industries use automatic door motors?

Automatic door motors are used in healthcare, retail, hospitality, transportation, commercial buildings, manufacturing, logistics, food processing, pharmaceuticals, cleanrooms, residential buildings, and smart-building systems.

8. Are automatic door motors suitable for high-cycle applications?

Yes. Motors designed for high-cycle applications can operate repeatedly in environments such as airports, hospitals, supermarkets, railway stations, and commercial buildings. Motor selection should consider continuous duty, thermal performance, gearbox life, bearings, and expected operating cycles.

9. Can automatic door motors work with smart building systems?

Yes. Depending on the motor controller, automatic door systems can integrate with RS485, Modbus, CANopen, Ethernet-based communication, access-control systems, PLCs, security systems, and building management systems.

10. What should OEM buyers ask an automatic door motor manufacturer?

OEM buyers should ask about rated and peak torque, motor speed, gearbox ratio, duty cycle, encoder options, voltage, communication protocols, operating temperature, noise, service life, customization, MOQ, lead time, testing, and technical support before placing a production order.