The SWL series worm gear screw elevator is a basic lifting component that uses worm gear transmission screws to complete functions such as lifting, lowering, pushing, and flipping. It has been listed in the JB/T8809-1998 standard. Widely used in various industries such as machinery, metallurgy, water conservancy, chemical industry, culture, and health, it has the advantages of compact structure, small size, light weight, easy installation, flexible use, good reliability, high stability, and long service life. It can be directly driven by electric motors or other power sources, or manually operated. This series of worm gear screw elevators can be self-locking, with a load-bearing capacity of 2.5t~120t. There are different structural types and assembly methods, and the working environment temperature is between -20~100 ℃. The lifting height is manufactured according to user requirements.