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Actuators provide full 360deg movement
Festo has launched a series of electromechanical rotary actuators that provide an exceptional level of movement flexibility. Able to accommodate literally any desired angle of rotation - including a full 360 degrees and continuous unlimited rotary motion - the ERMB modules set a new standard in rotary positioning performance.
The modules feature mounting interfaces on each of their six sides and can be mounted in any position, making them easy to integrate with other axes, and have a large diameter hollow output shaft to facilitate the feed-through of cables and tubing. They are particularly suitable for orienting gripper units at the front end of cantilever axes, and also provide a simple low-cost means of implementing high speed rotary positioning tables.
Festo offers three sizes of ERMB rotary modules, with maximum output torques of 3.1, 8.8 and 24Nm. The smallest model - the ERMB-20 - measures just 65x145mm with a height of 54mm and weighs a mere 850g. Yet despite its size, the actuator can handle direct loads of up to 30kg and moments of inertia as high as 200kg cm/cm. The largest model can accommodate moments of inertia as high as 3,700kg cm/cm. All EMRB modules feature a built-in homing sensor.
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