Proof chain hoists introduction

Proof chain hoists introduction


Proof  Chain Block  is an easy hoist equipment to use, easy to carry the manual lifting, also called proof down chain. Explosion-proof manual chain hoists with monorail trolley supporting the use of integral manual  hoist and trolley   belonging proof tools in one, suitable for inflammable and explosive dangerous places, can effectively prevent dangerous accidents.
Proof chain hoists with a safe, reliable, easy maintenance, high mechanical efficiency, bracelets pull small, light weight and portability, smaller size and beautiful appearance, durable features, it works through hands-drag chains, bracelets wheel rotation, the friction ratchet piece, brake pressure into integrally rotates together 5 will rotate sprocket tooth axis, minor axis 4 and the spline hole tooth gear. Thus, the device is splined sprocket holes on the lifting gear driven lifting chains, heavy lifting so smoothly. Using one-way ratchet friction disc brakes, the braking load on their own, under the action of the spring pawl and ratchet engagement to ensure the safety brake.
Proof  manual hoist  material into aluminum bronze (aluminum-copper alloy) and bronze (copper-beryllium alloy) two kinds. Including aluminum bronze material proof tools face hardness HRC at 25 ° or more, the tensile strength δ b> 75-85kgf/mm2, other technical indicators have reached international advanced level of similar products. In the flammable gas ethylene (concentration 7.8%) space of continuous use are to ensure safety, red (hit) strike, friction, sparks falling weight no explosion; while the bronze material proof tools face hardness HRC at 35 ° or more, anti- tensile strength δ b> 105-120kgf/mm2, base its technical indicators have reached international advanced level of similar products. In the flammable gas hydrogen (concentration 21%) were used space in rapid succession to ensure safety, red (hit) strike, friction, sparks falling weight no explosion. Beryllium also has a special magnetically shielded, in a magnetic field in the work environment can be used normally suitable for tool requires more rigorous work environment.
     Proof chain hoists specifications include: 0.5 tons, 1 ton, 1.5 tons, 2 tons, 3 tons, 5 tons, 10 tons, 16 tons, 20 tons, 30 tons. You can according to their actual work needs to choose suitable for use in product specifications.