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The key to an explosion-proof hand chain hoist is the material

2025-07-22

rizhi

The key to explosion protection lies in the material: it is special materials that ensure no sparks are generated during impact and friction. The mainstream choice is copper alloys: Aluminum Bronze (Al-Bronze) is a cost-effective and widely used material for explosion-proof chains, suitable for most IIA/IIB gas environments. Another option is Beryllium Bronze (Be-Bronze), which provides high levels of explosion protection (suitable for IIC class gases and Class I coal mine environments), but it is more expensive. Overall explosion protection design: It's not just about the chain; all components that may experience friction or impact during operation (such as hooks, gears, friction plates, and even housings) need to be made of explosion-proof materials.