Belt driven actuators use the rotational energy of a motor to turn a pulley which drives a belt. The belts are usually constructed of a composite of polymer with steel wire reinforcements. Belt driven unit use a carriage that is attached to the belt as a means of transferring linear movement to the load. Some advantages of a belt driven system are the abilities to achieve long stroke lengths, high capable travel speeds, and a high degree of accuracy.

Hunt Valve’s line of belt-driven rodless actuators are ideal for applications that warrant longer strokes, higher travel speeds and appreciable moment loading capabilities at an economic price point. Both the WH SPEEDLine® and WM POWERLine® ZRT units offer a robust toothed belt drive system which provides consistent and reliable linear motion.