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How to Choose Translating Screw Jack or Non Rotating Screw Jack or Rotating Screw Jack

All jacton worm gear screw jacks lifting screw designs with three types, they are worm gear screw jack translating screw design, non-rotating screw design and rotating screw design.

Translating Screw Jack: A drives worm shaft acts on an internal bronze worm gear, which in turn drives a lifting screw to extend or retract. As the lifting screw translates through the jack housing, inherent screw rotation is prevented by an attached load, full guidances or mounting structure that is anchored to resist rotation. The lifting screw will move linearly through the housing to push or pull the load. Note: The lifting screw of a translating screw jack must be attached to the load which prevents the lifting screw from rotating. Otherwise, the lifting screw and the load will turn and not translate. There are upright translating machine screw jack, inverted translating machine screw jack, upright translating ball screw jack, inverted translating ball screw jack. 

Non Rotating Screw Jack: Also called keyed screw jack, anti rotation screw jack. A non rotating screw jack can prevent lifting screw rotation, which has milled keyway along the length of  the lifting screw. A matching key is fastened to the cover of the screw jack, which will eliminate jack screw rotation. The keyway in the screw causes greater than normal wear on the internal drive worm gear threads, somewhat reducing screw jack lifespan. Note: JTB series and JTD series ball screw jacks non rotating screw jack by square protect tube with square nut. There are upright keyed machine screw jack, inverted keyed machine screw jack, upright keyed ball screw jack, inverted keyed ball screw jack.

Rotating Screw Jack: A rotating screw jack has a lifting screw that moves a bronze travel nut as it turns. Features a lifting screw keyed to the internal bronze worm gear as a single unit, forcing the lifting screw to rotate, but not translate. A travel nut, attached to the load, is driven by the rotation of the lifting screw. This type of jack is ideal for applications that cannot accommodate a screw protective tube or that require a flush mount. There are upright rotating machine screw jack, inverted rotating machine screw jack, upright rotating ball screw jack, inverted rotating ball screw jack.

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Product List
Manual Electric Screw Jack
Electric Screw Jack
Manual Screw Jack
Worm Screw Jack
JT Acme Screw Jack
JTC Cubic Screw Jack
JTM Worm Screw Jack
JTW Machine Screw Jack
JSS Stainless Steel Jack
JTH Compact Screw Jack
Custom Made Screw Jack
Ball Screw Jack
JTB Ball Screw Jack
JTD Cubic Ball Screw Jack
Bevel Gear Jack
High Speed Screw Jack
Quick Lifting Screw Jack
Bevel Gear Ball Screw Jacks
Miter Gearbox
JT Miter Gearbox(T)
JTP Miter Gearbox(Cubic)
JTA Miter Gearbox(Mini)
Hollow Shaft Gearbox
Stainless Steel Gearbox
High Speed Gearbox
Lift System and Accessories
Screw Jack System
Lift System Accessories
Lift System Applications
Linear Actuators
Parallel Linear Actuators
Inline Linear Actuators
Electric Linear Cylinder
Mechanical Linear Actuators
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

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