Joyce WJ50250 worm gear machine screw jacks with 50:1 gear set ratios lift and precisely position up to 250-tons. Upright or inverted, these jacks self-locking jacks operate at full capacity in tension or compression.
9 diameter lifting screw
Available in a 50:1 ratio
Single lead - 1.00 lead, ACME 2C
Screw material Cold Drawn Steel (CDS)
These large jacks are custom built to your specific application