Handwheel Screw Hoist

The handwheel screw hoist is a mechanical device that operates the screw through manual force to open and close gates, widely used in water conservancy projects, agricultural water construction, and sewage treatment.
Core Structure
Mainly composed of a bracket, hand crank, gear set, screw, and nut, it utilizes a worm gear speed reduction mechanism for flexible steering.
Functional Features
Self-locking function: The gate can stop at any position, equipped with a dual limit protection system to enhance operational safety.
Anti-theft design: Some models come with anti-theft lock devices and specialized tools to prevent unauthorized operation.
High adaptability: Supports both manual and electric modes, suitable for various terrains such as mountainous and plain areas.
Technical Parameters
Hoisting capacity range: 0.3-100 tons (customizable for different models)
Installation requirements: Base levelness ≥90%, screw axis vertical deviation ≤3mm
Debugging process: Requires no-load testing and upper/lower travel switch settings to ensure operational accuracy.
Application Scenarios
Primarily used in small-scale water conservancy projects, farmland irrigation, river management, and scenarios without power supply, such as reservoirs, dams, and municipal drainage systems.