Screw jack lifting table or Platform structures include miter gearboxes, screw jacks, electric motor or gear reducer, hand wheel, pillow block bearings, jaw couplings and line shaftings.
The Worm Gear Screw Jack are ideal solutions for applications where electricity or power generators is inconvenient or dangerous, light weight, low duty cycle, low target cost and short travel length.
A screw jack system is where more than one screw jack is operated in unison to achieve a linear movement. The screw jack system arrangement is also commonly referred to as a “screw jacking system”.
Generally to say,manual screw jack is used when sluice gate is small and electricity is not available,while electric screw jack is used when the gate is heavy.