Linear actuators boast increased thrust

Edited by the Engineeringtalk editorial team Sep 17, 2004

The HSI line of linear actuators available from Servotechnic provides both a broader range and, for a given size, significantly higher thrust than previously available from mini-steppers.

The HSI line of linear actuators available from Servotechnic provides both a broader range and, for a given size, significantly higher thrust than previously available from mini-steppers.

In the can stack product line five basic frame sizes are available, with diameters of 15, 20, 26, 36 and 46mm.

In the hybrid product line five basic frame sizes are available: 28, 35, 43, 57 and 87mm.

The motors incorporate a threaded rotor in conjunction with a (leadscrew) shaft to provide rapid linear movement in two directions (inward and outward).

Available step increments vary with the motor frame sizes and are dependent on the basic step angle of the motor and the lead screw pitch.

A captive or noncaptive shaft (leadscrew) option can be supplied for every size except the 15mm motor which is available with a captive shaft only.

The captive shaft configuration features a built-in "antirotation" design.

The noncaptive shaft option requires the customer to provide external antirotation.

Both unipolar and bipolar coil configurations are available.

HSI's patented design accepts a larger rotor than conventional units, improving efficiency and eliminating the need for massive heat sinks.

Unique HSI features impart ruggedness and reliability that assure long life and consistent performance.

Rare-earth magnets are available for even higher thrust.

All units are built with dual ball bearings for greater motion control, precise step accuracy and long life.

Applications include medical instrumentation, office equipment, machinery automation, robotics, sophisticated pumping systems and other automated devices which require precise remote controlled linear movement in a broad range of temperature environments.