High precision ball screw elevator can be widely used in machinery, metallurgy, construction, chemical industry, medical treatment, culture and health and other industries. It can accurately control and adjust the lifting or propulsion height according to a certain program, which can be directly driven by motor or other power, or manually. Screw lifter is a kind of lifting component for foundation lifting. The bearing capacity is 2.5-120t. The utility model has the advantages of compact structure, small volume, light weight, wide power source, low noise, convenient installation, flexible use, multiple functions, multiple supporting forms, high reliability, long service life and so on.