SJ Screw Jack

The SJ worm gear screw jack is a lifting component that offers numerous advantages compared to other series of screw jacks, including a compact structure, small size, easy installation, diverse input forms, high reliability, and long service life. It features functions such as lifting and lowering, as well as driving through shaft components and reversing. It can be used individually or in combination with multiple units. This product can be driven by electric motors or other driving devices, and can also be operated manually. It is widely used in industries such as metallurgy, machinery, water conservancy, healthcare, and chemical engineering.

Introduction to the Material and Processing Technology of the Worm Gear and Worm in Screw Jacks

There is now a type of transmission machinery that is gradually expanding its market share while replacing hydraulic and pneumatic transmissions. It is compact, low-noise, capable of handling heavy loads, and self-locking, making it more convenient to use and simpler to operate. I believe you have guessed it—yes, this is our protagonist today: the screw jack (also known as the spiral jack).

The excellence of screw jacks is largely due to their internal structure—the worm gear and worm mechanism. This structure was originally used in speed reducers to reduce speed while amplifying torque, meaning that a small force can transmit a large torque. Later, it was discovered that using this mechanism in jacks for lifting or hoisting motions was also an excellent choice, leading to the emergence of screw jacks.

Thanks to the internal worm gear and worm structure, screw jacks are very compact and aesthetically pleasing, making them suitable for any tooling without appearing突兀. This structure also gives screw jacks two speed ratios: fast and slow, to adapt to different usage scenarios. Today, we will first discuss the material and processing technology of the worm gear and worm in screw jacks.