MACHINE SCREW JACKS
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.
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