We can supply precise, reliably worm gear screw jack systems configured jacking drive units, connecting shafts, mitre gear boxes, motors, etc. that conform both to current industrial-machine legislation and standards and to your exact function requirements. The jacking systems and components are all duly certified. Synchronous screw jack lift system was exported to United Kingdom customers. This screw lifting systems are consist of 4pcs 10tons screw jacks, 3pcs right angle gearboxes, 1pc 3-phase motor and other accessories like chain couplings, connecting rods etc.