multi platform worm jacks, platform jack coil lift, jack screw gear table, ball screw table jack, precision screw jack lift table, ball screw lift table, linear actuator lift table, locking lead screw lift table parts include bevel gearboxes, screw jacks, flexible couplings, connecting shafts and pillow block bearing etc. Electric motor operated with high speed or low speed. For lightweight and short stroke adjustment, manual operation is avaiable. Compared with pneumatic cylinder lift systems or hydraulic table lift system, which has heavy duty-load capacity up to several hundreds tons, self locking-no need brake mechanism or others locking systems, precision positioning, easy to control according to your own design, synchronizing lifting, multi-units uniform travel speed, multiple screw jacks lift system arrangements, easy installation, maintenance free and long service life.