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Rotary vane actuators

Learn more about Rotary vane actuators
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Selection Guide

Quarter turn actuators DRVS

The Festo DRVS pneumatic quarter turn actuator is characterized by its compact and lightweight design. At the same time, a torque of up to 20 Nm is possible.
The rotary vane actuator can be configured as a version with a swivel angle of 90°, 180° or 270°. The swivel angle can also be infinitely adjusted by means of an external stop kit. The SRBS position sensor, specially developed for the DRVS, enables contactless position sensing at two freely selectable switching points.
Due to the ATEX approval, the quarter turn actuator is also suitable for use in potentially explosive atmospheres. A shaft seal on the quarter turn actuator protects the inside of the DRVS housing from splash water and dust. Several mounting elements as well as direct mounting on the DRVS itself enable its flexible and versatile use.
As part of Festo's core product range, the DRVS series is available from stock worldwide. Short delivery times and good service are thus ensured.

Swivel modules DSM

The DSM pneumatic quarter turn actuator is suitable for rotary applications requiring a swivel angle of up to 270°. The swivel angle is infinitely variable. Direct mounting of the rotary vane actuator is possible from three sides without accessories: axially, vertically and laterally.
Different elastic and hydraulic cushioning variants offer suitable end-position cushioning for every application. Depending on whether the focus is on short cycle times, high energy absorption in the end position or a repeat accuracy of maximum 0.1°: In addition to high precision, the cushioning elements allow easy fine adjustment of the swivel angle in the end positions.
Two further options also ensure a wide range of applications for the DSM. By using a heavy-duty bearing, higher load torques and an even more precise bearing with high running accuracy can be achieved with the DSM-...-HD. With the tandem version DSM-T-..., a torque of up to 80 Nm can be achieved. The interfaces of the actuator remain identical.

Quarter turn actuators DSR, metric

The DSR pneumatic quarter turn actuator is characterized by its sturdy design and a torque of up to 20 Nm. The swivel angle of the DSR can be adjusted at will and continuously up to a maximum of 180° via an integrated stop system.
If required, the rotary vane actuator can be configured as a version with hollow flanged shaft. This makes it possible to carry different media with the aid of tubing or electrical cables. Optional mounting elements and direct mounting on the actuator itself open up various possibilities for mounting the quarter turn actuator.
The FLSR freewheel unit also offers an extended function. The freewheel is an attachment that is mounted on the output shaft of the DSR. With this accessory, the oscillating rotary movement of the quarter turn actuator can be converted into a pulsed, uniform movement in only one working direction.

Quarter turn actuators DSR, inch

The DSR pneumatic quarter turn actuator is characterized by its sturdy design and a torque of up to 20 Nm. The swivel angle of the DSR can be adjusted at will and continuously up to a maximum of 180° via an integrated stop system.
If required, the rotary vane actuator can be configured as a version with hollow flanged shaft. This makes it possible to carry different media with the aid of tubing or electrical cables. Optional mounting elements and direct mounting on the actuator itself open up various possibilities for mounting the quarter turn actuator.
The FLSR freewheel unit also offers an extended function. The freewheel is an attachment that is mounted on the output shaft of the DSR. With this accessory, the oscillating rotary movement of the quarter turn actuator can be converted into a pulsed, uniform movement in only one working direction.