A screw jack is an electromechanical drive that converts rotary motion, for example from a motor, into linear motion. It enables precise lifting, lowering, or positioning of loads. ZIMM offers two versions:
- Translating spindle (S version): the spindle moves axially
- Rotating spindle (R version): the spindle rotates, and the travelling nut moves along the spindle
In this video, viewers will explore the mechanics of a screw jack, learning how it converts rotary motion into linear motion for precise lifting and positioning of loads.




