Rotary drive
of the next generation.

Our TENSOR series now meets the high protection classes IP66 and IP67 as standard


Fully electronic rotary drive

The precision drive with wide range power supply, wear-free absolute position detection and high control accuracy. Your entry to Industry 4.0

With the series Tensor ARIS offers an innovative generation of electronically controlled actuators. The Tensor is based on a low-backlash precision gear in combination with a brushless DC motor. The Tensor´s complete mechanical shut-off system has been replaced by a wear-free, non-contact position detection, which is based on the Hall effect. This sensor technology was developed many years ago for use in the automotive industry and has proved extremely robust, wide temperature range and high reliability.

Previously, with the classic actuators the user had to hold many actuators with different shutdown systems for different adjustment paths. Now the electronic system comfortably covers all control options with a single version. With the non-contact position sensing system it is practically wear-free and guarantees constant precision. Problems and long-term drift effects caused by switching hysteresis at potentiometers and switch point hysteresis at micro switches, are also a thing of the past. In total, the result for the user is a noticeably higher control accuracy for the entire drive, which also remains practically constant over the drive´s lifetime.

In addition to precise control, the electronic positioning system provides a significantly simpler and faster start-up by programming using buttons. A permanent torque monitoring protects actuator and valve reliably against overloading.

BLDC motors have Hall sensors according to their poles, with which the electronic controls the phase currents of the motor and realizes the electronic commutation. In addition, the motor management system monitors the line current itself. Malfunctions as a movement in the wrong direction, the wrong speed or overload condition are detected immediately and lead to shutdown of the drive. Since the motor is driven over a defined signal sequence, an undesired or even uncontrolled movement is excluded here.

The possibility of speed control combines the functions of multiple drives in a single device, thus reducing the investment costs. The multi-voltage power supply in connection with the adjustment range of a few degrees up to several revolutions significantly reduce the stock list and storage costs. The permanent control of the drive system, increases the operational reliability of the plant.




Actuating time




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Single component or complete unit.

  • Operational safe

    • Permanent monitoring of the drive motion
    • No release or adjustment of switching cams, even with vibrations
    • Permanent plausibility check between motor and sensor movement
    • Electronic position detection via two Hall sensors (directly on the output shaft)
    • Detection of speed and direction of rotation via three Hall sensors (in the motor)
    • Permanent current monitoring
    • Torque cut-off
  • Intelligent and precise

    • Adjustable ramps for engine start and stop
    • Short braking and acceleration times
    • 12 bit without play on the output shaft
    • Position is detected absolutely
    • Low-backlash basic gear
    • No hysteresis
    • Easy readjustment
    • Bus control (optional)
  • Flexibility – very economical

    • Easy adjustment via buttons, i.e. short commissioning times
    • Free choice of the desired travel path by programming
    • Various standard mounting holes, incl. ISO 5211
    • Multi-voltage power supply 85 … 265 V AC (alternatively low-voltage power supply AC / DC)
    • Special characteristics for I-ACT (PMR) controller (optional)
  • Durable technology

    • Absolutely wear-free position detection, i.e. permanently exact switch-off
    • No abrasive contacts
    • Powder-coated aluminum base housing
    • Impact resistant polycarbonate cover (alternatively aluminum)
    • Protection class IP 65 (optional up to IP 66)
    • Brushless current supply (BLDC motor)
    • No start-up capacitors
  • User friendly

    • Electronic adjustment of torque and speed
    • Electronic adjustment of end positions and additional switches
    • Programming board with 3 buttons and LEDs
    • Electronic position indicator (optional)
    • Captive cap screws
    • Toolless setting

Basic electronics with add-on interface


BLDC motor


Transducer for Hall sensors

2 pcs, backlash-free


Precision metal gear


Aluminum housing




Standards and customized

Specifications rotary drive Tensor
Protection classIP66
Ambient temperature–15 °C…+60 °C
optional -40 °C…+80 °C
HousingDie cast alu (EN AC-44200) powder-coated
CoverPolycarbonate (optional aluminum)
Output shaft1.4021
Position indicatorElectronical
Power supply85…265 V AC
(optional low voltage power supply AC/DC)
Additional switches2 or 4 bistable relays (optional)
PotentiometerElectronical (optional)
Travel10°…100 turns (S)
10°…30 turns (M)
10°…15 turns (L)
Duty cycle 100%
Connection3 cable entries M16x1.5
Travel cutoffElectronical (wear-free)
MaintenanceLifetime lubrication (maintenance-free)
(optional position controller 12 bit, Bus, …)