Mini Jacks Quick Reference

MODEL Gear Ratio Capacity (tons) Lifting Screw Dia.(in) Screw Lead (in) Root Dia. (in) Turns of Worm for 1" travel Max input Torque (in-lb) Max Input (hp) Max Worm Speed at Rated Load (rpm) Max Load at 1,750 rpm (lb) Torque to Rase 1 lb. (in-lb) Tare Drag Torque (in-lb)
MJ-20 5:1 .5 12 .250 .332 20 19 13 1,090 631 .019 -
MJ-25 5:1 .5 58 .200 .377 25 21 13 1,040 571 .021 -
MJ-40 5:1 .5 58 .125 .457 40 17 13 1,260 706 .017 -
MJ-50 5:1 .5 12 .100 .359 50 14 13 1,560 857 .014 -
MJ-80 20:1 .5 12 .250 .332 80 8 16 1,310 750 .008 -
MJ-100 20:1 .5 58 .200 .377 100 9 16 1,210 667 .009 -
MJ-160 20:1 .5 58 .125 .457 160 7 16 1,500 857 .007 -
MJ-200 20:1 .5 12 .100 .359 200 6 16 1,800 1,000 .006 -
Figure 1