This is the article of trapezoidal screw. You may learn more about the advantage of the trapezoidal screw.
Screw jack, also known as helix transmission equipment, methodically change its rotation into linear motion--and vice versa . Some crew jacks serve for the weight lifting (such as press and lifting jack), some for the movement transmission(the shafts that connect platens). Some for the adjustment of relative location of parts.
With the development of market diversification, China's jack industry has gradually changed its development mode. Under such background, the market demands gradually move toward to the innovation technology which features as low-energy, low-pollution, low-noise and high-value-added.
Screw jack is mainly composed of a housing, an input worm, a copper worm gear with internal threads and other accessories. Lifting capacity ranges from 0.5 tons to 100 tons which is different in various models. Dynamic capacity ranges from 0.3 tons to 26 tons, maximum speed can be 3600mm/min.