This design is only available for translating screw jacks. If the structure/object connected to the lead screw is not prevented from rotating or the lead screw is not always in contact with the structure then a screw jack with an “Anti-Rotation” mechanism (keyed) should be used. For machine screw jacks the mechanism uses an internal key to prevent the lead screw from rotating. For ball screw jacks a guided element fixed to the ball screw is used to prevent the ball screw from rotating.

What other design features are available? Other designs & features available include:

1. Bellows boot screw protection
2. Safety nut (translating or rotating screw types)
3. Motor adapter kit
4. Double Clevis - reinforced cover pipe with clevis
5. Anti-corrosion protection. As well as stainless steel various platings and paint finishes are available
6. Trunnion mounts for base of screw jack
7. Limit switch kits (mechanical, proximity and rotary cam types)
8. Thrust rings for screw jacks that need to withstand high shock loads
9. Reinforced gearbox housing
10. Upgraded rotating screw jack for improved column strength for compressive load

Have a look at our E-Series Screw Jacks brochure for lots more ideas and product specifications. If your requirement is not listed then just ask Power Jacks if it possible as chances are we have done it before.