JACTON offers all worm gear screw jacks are available in equiped with bellow boots. The bellow boots can protects the lifting screw from contaminants, helps maintain the proper lubrication and prolong the jack life.The standard bellows boots are usually circular, made of neoprene coated nylon with sewn construction, oil,water and weather resistance, can be used in -15°to +80°environment, extra 2 pcs of galvanised hose clips are included too.

Bellow boots are available for all sizes and configurations of worm gear screw jacks. They are for both screw jacks models: with travelling screw Type and with travelling nut Type. 
For travelling screw Type screw jacks. Normally, the bellow boots is installed between the limit screw attachment and the worm gearbox, and the protection tube is installed on the opposite side. 
For travelling nut Type Type screw jacks. The bellow boots is normally installed between the screw jack housing and the nut and also between the nut and the lift screw end. Some applications may require bellows in only one of these two positions. When you need screw jacks with bellow boots, please consider the effect of bellow boots on stroke(travel length).