Why is the screw the core component of a screw jack

Any hydraulic jack will have a core component, which is the most important component of the jack. If the core of a hydraulic jack is a hydraulic pump, then the core of a screw jack must be a screw. So, what is the existence of a screw to a screw jack?

The importance of screws for screw jacks mainly comes from their support and transmission. The reason why the entire screw jack can maintain a stable standing posture is mainly related to its straight screw. The screw is generally made of high-strength metal materials. Currently, commonly used screw materials in China include 45 # steel, 40Cr, ammoniated steel, 38CrMOAl, high-temperature alloys, etc. The vertical posture of high-strength screws plays a crucial role in supporting the jack.

The screw jack adopts a screw pair transmission, and the trajectory of this transmission method is to lift around the screw, while the track is the thread on the screw. Its precise design allows the screw jack to ensure safe and stable lifting, and maintain a reverse locking state through the transmitted frictional force and the force difference caused by the deviation of the thread from the horizontal angle.

It is these two aspects that ensure the core position of the screw in the screw jack. If you want to learn more about the accessories and functions of the jack, you can always follow us.