Malkar Industries

Material Handling, Lifts & Gates · Application

Self-locking worm drives for lifts and hoists

Worm gear reductions that lift goods lifts, scissor tables and hoists and hold the load when the motor stops.

What was needed
Worm & Worm Wheel
Requirements
  • Large reduction for slow lifting
  • Holds the load when the motor stops
  • Compact drive
Result
A compact lifting drive that resists running back.

Problem

Goods lifts, scissor tables, hoists and gate operators raise heavy loads slowly and must not run back when the motor stops.

Solution

A worm and worm wheel gives a large speed reduction in one stage. Low-lead worm sets are self-locking, helping the drive hold the load (a brake is still used where safety rules require it).

Benefits

Why it works

Large reduction in one stage

Compact drive for slow, heavy lifting.

Load holding

Self-locking worm geometry resists back-driving.