PM-Lift has strong magnetic path produced by NdFeB magnet.On and Off of the magnetic path is controlled by turning the manual handle. Use the PM-LIFT to move plate steel, block or round steel, and iron material in your shop. Super-powerful lifting magnet requires no electricity and its power will never weaken.It's perfect for loading or unloading most work pieces including press molds, plastic molds, machined parts, etc. Rated for up to 6,000 kgf! So magnetic lifter are the most ideal lifting facility for factories,docks,warehouses and transportation.