Brushless Servo Motors

TORQUE MOTORS

  • Performance = speed + accuracy + efficiency
  • Design and support to match your needs
  • Designed for compatibility with most drives for maximum flexibility

Direct drive Torque Motors delivering high torque, precision and efficient machine integration

Torque Motors are developed based on Lafert’s long-standing expertise in brushless permanent magnet motor technology, built through decades of experience in high-precision motion applications.

This know-how is combined with continuous research and development and the ability to deliver application-specific, non-standard solutions. While precision, torque accuracy, and control stability remain standard across the range, Torque Motors can be customized in terms of mechanical interface, cooling concept, feedback system, and integration requirements. This approach allows Torque Motors to meet the demanding requirements of applications where a direct-drive architecture, high torque density, and strong machine integration are essential.


Main advantages
  • Direct drive architecture eliminates mechanical transmission elements, enabling backlash-free motion, high stiffness, and precise positioning accuracy in demanding motion applications.
  • High continuous torque at low speed ensures smooth rotation, stable control, and low noise levels, even under high load conditions.
  • High overload capability supports peak torque demands during acceleration and dynamic operation without compromising performance reliability.
  • Energy-efficient operation across the speed range improves overall machine efficiency while reducing mechanical losses.
  • Strong mechanical integration with multiple shaft configurations, mounting options, and compact designs supports rigid and space-efficient machine architectures.
  • Flexible customization options, including cooling concepts, feedback systems, and mechanical interfaces, allow Torque Motors to be adapted to application-specific requirements.

TORQUE

10500 Nm

SPEED

UP TO 1000 rpm

FRAME SIZE

B10PB16PB18P

STANDARD SPECIFICATIONS

- Torque range 10 Nm to 500 Nm
- Rated speed up to 1000 rpm
- High torque at low speed; low noise level
- High overload capability
- Energy Efficient through the whole speed range
- Different coupling shaft available:
standard key, blind hole, hollow shaft
- Optimal for machines' strong integration

options

- cURus certification
- Customised flange and special shaft
- Water cooling for medium and large size motors
- Other (type of encoder and connector, thermal sensor, ...)

LOOK FOR YOUR PRODUCT

TypeFlange mmNmrpm
B10.10P22510.00500
B10.10P22510.001000
B10.20P22520.00500
B10.20P22520.001000
B16.50P27550.00300
B16.50P27550.00500
B16.50P27550.001000
B16.C0P275100.00300
B16.C0P275100.00500
B16.C0P275100.001000
B16.C5P275150.00300
B16.C5P275150.00500
B16.C5P275150.001000
B16.B0P275200.00300
B16.B0P275200.00500
B16.B0P275200.001000
B18.CBP386115.00300
B18.BCP386225.00300
B18.325P386325.00300
B18.420P386420.00300
B18.510P386510.00300

Industries

Torque Motors are used in applications where direct drive motion, high torque at low speed, and precise rotational control are required. By eliminating mechanical transmission components, they enable backlash-free operation, high stiffness, and strong machine integration, making them suitable for demanding industrial environments.




TECHNICAL FAQS

What defines Torque Motors compared to conventional servo motors?

Torque Motors are designed for direct drive systems, eliminating mechanical transmission components such as gearboxes or belts. This enables backlash-free motion, higher stiffness, and improved torque accuracy.

Why are Torque Motors suitable for low-speed, high-precision applications?

Torque Motors deliver high continuous torque at low speed, allowing smooth and stable motion without speed ripple. This makes them ideal for applications requiring precise positioning, constant torque, and quiet operation.

How does direct drive improve machine performance?

Direct drive architecture reduces mechanical losses, backlash, and wear. This improves positioning accuracy, dynamic response, and long-term reliability while reducing maintenance requirements.

How does inertia matching influence Torque Motor performance?

In direct drive systems, motor-to-load inertia ratio plays a critical role. Proper inertia matching improves control stability, reduces oscillations, and ensures accurate torque control, especially in large rotating masses.

How does cooling affect Torque Motor selection?

Torque Motors used in high-duty or continuous torque applications may require water cooling, particularly in medium and large frame sizes. Correct cooling selection ensures thermal stability and sustained performance.

What feedback options are available for Torque Motors?

Torque Motors can be supplied with different feedback technologies, including resolvers, incremental encoders, and absolute digital encoders. The choice depends on environmental conditions, required resolution, and drive compatibility.

PRODUCT DOCUMENTATIONSPRODUCT CERTIFICATIONS
Certificate of Conformity UL - PM Motors
Declaration of Conformity EU - Servo Motors
Declaration WEEE Lafert Servo Motors S.p.A.
General Terms & Conditions of Sales - Lafert S.p.A.

Contact Us

Lafert S.p.A.
Via J.F. Kennedy 43
30027 San DonĂ  di Piave
Venice - Italy

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