Linear positioning
Festo has launched a linear positioning system that comprises just two elements.

has launched a linear positioning system that comprises just two elements - the linear handling axis itself and a programmable positioning controller incorporating all the power electronics.
Featuring a precision guide assembly with a linear servomotor and displacement encoder, the HME axis provides a solution for a range of precision positioning tasks. It is suited to highly dynamic applications, such as high speed pick and place machines, linear and 3D gantries, and workpiece assembly systems.
Unlike competitive linear motor based actuators, the HME has a built-in precision heavy duty guide system to ensure consistent performance throughout its stroke, without need of any additional mechanical components.
The guide combines precision ground and hardened bearing tracks with recirculating ball bearings to provide backlash-free operation, and provides high torsional stability. The largest model, for example, can accommodate up to 50 Nm of torque and up to 500N of cantilever force on its yoke plate, without affecting performance. Festo claims that these figures are completely outside the domain of conventional linear motor axes, which require complicated integration with sophisticated guidance systems to approach this level of load tolerance.
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