Two-set linkage screw jack system can be "L", I and T configuration. It usually consists bevel gearbox, screw jack, electric motor, gear reducer, hand wheel, pillow block bearing, jaw coupling, line shafting.
Trapezoidal acme screw jacks are popular among daily use. Its features are that it is simple to maintain, low noise, and can work normally at high / low temperature, corrosion / explosion harsh environment,
A safety nut on a screw jack is an auxiliary nut, which follows the “lifting nut” on a rotating screw jack or the worm gear on a translating screw jack.