Joyce worm gear machine screw jacks lift and precisely position
loads (250 pounds to 250 tons). Upright or inverted jacks
operate at full capacity in tension or compression. WJ and RWJ,
single lead jacks are self-locking. DWJ and DRWJ, double lead
jacks offer increased travel speed and require a brake or
external locking device to hold position.
Alloy steel input shafts
Aluminum bronze wormgears
Tapered or ball thrust bearings provide rugged reliability
Double input shafts standard
Protective boots available
Anti-backlash devices available
Customized mechanical jacks can be made to your
Custom finishes available
Parts list and exploded views are included in the O&M Manual.
The serial number is attached to the product housing.