manual crank gear screw jack reducer descriptions A manual crank gear screw jack reducer is composed of a handwheel and a screw jack reducer. For manual crank operation applications, available in low duty cycle, light weight, and short travel length(stroke). It is ideal solutions for applications where electricity or power generators is inconvenient or dangerous. If must be not backdriving, a manual crank machine screw jack reducer with self locking is the best choice. If must be manual crank ball screw jack reducer with high precision, locking mechanisms need to be considered.
When manual crank gear screw jack reducer need precise position display, a range of digital position indicators are available. These digital position indicators measure the rotations of the input shaft and display corresponding position in the digital counter window. The display value per input shaft revolution is variable and is achieved through a series of gear reductions configured to accommodate different worm gear ratios, screw pitch and travel length(stroke).
Cast Iron Handwheel Descriptions Cast iron handwheel diameter 125mm, 160mm, 200mm, 250mm, 320mm and 400mm, larger diameter handwheel is available, please consult Jacton sales. The recommend screw jack 0.25 ton, 0.5 ton, 1 ton, 2 ton, 2.5 ton, 5 ton, 10 ton, 15 ton, 20 ton capacities are available in matching cast iron handwheel for hand-operation application.
Aluminum Handwheel with Folding Handle Descriptions Aluminum handwheel diameter 80mm, 100mm, 125mm, 160mm and 200mm. The recommend screw jack 0.25 ton, 0.5 ton, 1 ton, 2 ton, 2.5 ton, 5 ton capacities are available in matching aluminum handwheel for hand-operation application.