Chain Hoist Spark Resistant Hand Tool , Copper Alloy Aluminum / Beryllium Manual Hoist , Hand Tools

 Explosion-proof chain hoists made of copper alloy, due to the good thermal conductivity of copper and virtually no carbon qualities,so that machinery, tools and other objects friction or impact, heat is absorbed in a short time and conduction; the copper itself is relatively softer, there is a good compromise between friction and impact, not easy to produce tiny metal particles.

Explosion-proof chain hoists selection: first point:proof safety performance that is copper alloy material, second point, mechanical safety performance. Explosion-proof chain hoists are often used in conjunction with proof chain I beam trolley.

Explosion-proof chain hoists can be widely used in petroleum, petrochemical, oil stations, oil depots, gas production, chemical, military, electric power, mining, electronics, railways, and other potential fire and explosion hazard environment, product operations colliding with each other It does not produce mechanical sparks and effectively prevent fire accidents, ensure that state property and personal safety. But also machinery and mechanical maintenance necessary special tools. Explosion-proof chain hoists work principle: Hands chain drag chain, bracelet wheel began to turn, friction ratchet brake seat (to be pressed into one) co-rotating, five gear tooth long axis will rotate pieces, four minor tooth and spline hole gear. Thus, the means of lifting the sprocket holes in the gear spline on drive lifting chain, lifting heavy objects smoothly

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