Extension of the lifespan of the electromagnetic brake linings for overhead cranes.
We received your inquiry regarding the short lifespan and frequent replacement of the electromagnetic brake linings (brake shoes) that control the drive and stop of a large overhead crane with a rated load of 30 tons. Issues: 1. In the past, asbestos-containing linings were used, but after switching to non-asbestos resin-type linings, the lifespan has decreased. 2. The frequency of replacements is high, and the process of replacement is cumbersome. 3. Since it involves working at heights, we want to reduce the frequency of replacements for safety reasons.
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It was proposed to change the material from resin-type brake shoes to woven-type brake shoes, which maintain braking power even under high temperatures and harsh conditions. Points: 1. Woven-type brake shoes maintain braking power and have a long lifespan even under high temperatures and harsh conditions. 2. The price is twice that of resin-type, but the extended lifespan reduces replacement costs and maintenance efforts. * Resin-type brake shoes: Brake shoes made by baking a powder (framework materials, lubricants, abrasives, pH adjusters, fillers, etc.) with resin. * Woven-type brake shoes: Brake shoes woven by mixing special fibers and high-performance fibers and inserting reinforcing wires.
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