... ,couplins,guides,gear reducer etc. Screw Jack Lifting System configurations screw jacks, bevel gearboxes, flex linking shafts ... self locking 2. Multiple jack system, from pair jacks system to fourteen jacks system 3. Electric driven, manual operated ... Powered straighteners, Precision levelers, Solar tracking actuator systems, Large satellite dish antenna movements, Slitting line, Textile, steel, rubber ...