Stainless steel screw lift, SWL series snail wheel screw lift ye kë ye cɔl base lifting component, ye kɔc cɔl JB/T8809-2010 (JB/T8809-1998, JB/ZQ4391-86) standard. Capacity of carrying 2.5-120T. With compact structure, small size, light weight, wide power source, small noise, easy installation, flexible use, many functions, supporting forms, high reliability, long service life and other advantages.