When you need reliable, self-lifting power without hydraulics, worm screw jacks deliver. These mechanical workhorses convert rotary motion into linear force with unbeatable stability—perfect for leveling, pressing, or positioning loads from 5kg to 100 tons.
Three winning features:
1. Self-Locking – Holds position without brakes (worm angle < friction angle)
2. Precision Control – Achieves 0.01mm repeatability with servo input
3. Duty Cycle Tough – Runs continuously at 30% rated load
Top Applications
- Stage Rigging – Precise elevation of theater platforms
- Industrial Presses – Controlled compression force
- Solar Trackers – Daily panel angle adjustments
- Dock Levelers – Heavy-duty bridge positioning
Inside the Mechanism
A worm gear rotates against a threaded lift shaft, with three key configurations:
• Translating Screw – Shaft moves linearly (most common)
• Rotating Screw – Nut travels along stationary shaft
• Keyed Screw – Prevents rotation for pure vertical travel
Modern enhancements include:
- Anti-backlash nuts – Critical for CNC applications
- Stainless steel builds – For food/pharma environments
- Motorized units – Stepper/servo-ready with limit switches
Wenzhou Hemu Mechanical Equipment Co., Ltd. is a product research and development, manufacturing, sales and service in one of the technology-oriented enterprises. The company is located in Pingyang County, Wenzhou, Zhejiang, the company's technology research and development center employs a number of senior transmission machinery design engineers. Visit our website at https://www.hemureducer.com/ to learn more about our products. For inquiries, you can reach us at info@hemureducer.com.
