Torque Motors


Motori Coppia - QTR 105 Series
QTR 65 Series


The QTR 65 is the smallest torque motor in the Tecnotion QTR series: optimised for small build-spaces and low voltage operation (48 VDC), it is an ideal solution for robotics.

The QTR 65 torque motor, where the number stands for the inner diameter in millimetres, is available in four "build heights" (or sizes), of 17, 25, 34 and 60 mm.

One of the main plus factors of torque motors is the elimination of mechanical driveline components such as reduction gearboxes, belts, etc.

These characteristics, combined with brushless construction, sharply improve performance factors such as productivity, precision and dynamics.

The Tecnotion R&D team's experience in the construction of direct drive motors and, in this case, of coils, has direct implications for the motor's technical performances, giving the QTR series impressive efficiency.
Like all Tecnotion ironcore motors, the QTR series has a low torque ripple, ensuring smooth movement and accurate positioning.

The QTR 65 torque motor can be equipped with a digital Hall-effect sensor. The module occupies a small region of the motor about 3 mm thick in the largest part. Even when the stator is not receiving power, the digital Hall-effect sensor can still be used to detect the motor's electrical position.
High dynamics
Peak torque: 3,67 Nm
Internal diameter: 56 mm
Low inertia
Rotor diameter: 17mm (internal)

Technical Spec



  • Max voltage: 420VAC rms (600VDC)
  • Peak torque: 3,82Nm
  • Continuous torque*: 2,31Nm
  • VMax speed*: 6.200rpm
  • Poles: 8
  • Stator diameter: 65mm (external); 
  • Rotor diameter: 17mm (internal)
  • Motor heights (QTR 65-34): 35mm
  • Stator mass: 149-717g
  • Rotor mass: 27-160g
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Massimo Redaelli
Massimo Redaelli
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