Compound Screw Jack

The Compound Screw Jack is a mechanical lifting device designed for raising heavy loads with minimal manual effort, using the combined mechanical advantage of a screw jack mechanism and a worm gear assembly.

Jack Screw: · Threads per Inch (T.P.I.): 4 T.P.I. · Type: Double start screw (means two threads run simultaneously)

Load Platform: · Mounted at the top of the jack screw & moves vertically as the screw rotates.

Nut: · Fixed in a pedestal bearing allowing smooth rotation of the screw. Keyed to a Worm Gear — ensures synchronized movement.

Worm Gear Assembly: Worm Gear: 40 teeth. Worm Screw: Engages the gear and transfers input motion to the jack screw

Effort Wheel: Diameter: 15 cm, Mounted on the spindle of the worm screw. Used to apply manual.

Weights: Not included in this assembly

Optional Accessories: Slotted Weight 500gm x 5 - One Set & Slotted Weight 50gm x 5 - One Set