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Jacton Industry Co.,Ltd.
Contact: Warren Lee
Skype: jactonjack
T: 86-769-81585810
F: 86-769-81585852
E: sales@jactonindustry.com
W: www.screw-jack.com

Manual Worm Gear Screw Jack
Hand wheels are available for Screw Jack so that it can be easily used for manual operation. Hand wheels are used for self-lock equipped worm gear machine screw jacks only. Because ball screw jack and high lead screw jacks are not equipped with a self-lock, the input shaft may be reversed by a load, therefore, it is dangerous to use the hand wheel. Manually operating a jack when using screw jacks in intermittent positioning applications. Note: clockwise rotation with lift screw moves down(retract), counter-clockwise rotation with lift screw moves up(extend).

manual crank gear screw jack reducer

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.

manual gear jack linear actuator

A manual gear jack linear actuator is composed of a handwheel and a screw jack actuator. For manual 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.

hand operated worm screws

A hand operated worm screws is composed of a handwheel and a worm screws screw jack. For hand operated 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.

manually operated screw actuators

A manually operated screw actuators is composed of a handwheel and a screw actuator. If must be not backdriving, a manually operated machine screw actuator with self locking is the best choice. If must be manually operated ball screw actuator with high precision, locking mechanisms need to be considered.
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