GSX or GSM series Actuators incorporate a servomotor built around a roller screw element. This gives a very compact design which can directly replace pneumatic and hydraulic cylinders in many applications. GSX is a heavy duty model, the GSM is for standard duty.
Tritex Actuators are based on GSX and GSM series but incorporate a servo controller and positioner. Programming is easy and they offer a totally self contained solution for many applications.