Working principle of the screw jack
The operating principle of a screw elevator is briefly described as follows: it achieves vertical lifting through the helical motion of its screw. Its key components include the screw shaft and the guide rail.
2026-02-26
The operating principle of a screw lift is briefly described as follows: it utilizes helical motion to achieve vertical lifting. Its core components include the screw shaft and the guide rail. During operation, an electric motor drives the screw shaft to rotate, generating axial thrust through the contact between the screw thread and the guide rail, thereby causing the lifting platform to ascend or descend along the rail. Throughout the lifting process, bearings ensure stable support between the platform and the guide rail, guaranteeing uniform load distribution. Additionally, safety devices such as limit switches and overload protectors effectively safeguard the equipment’s safe operation. In summary, the screw lift achieves efficient and smooth vertical movement through the interaction between the screw and the guide rail.
