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One of our long time customers contacted us about a brake problem on one of their stamping presses. Their problem was that after about an hour of single stroking the press, the existing clam shell drum brake would get so hot it couldn't stop the press. They would let it sit for an hour to cool off and then go through the same cycle again. Needless to say production suffered.
After running the appropriate calculations for torque, thermal load and stopping time, we looked at our choices for a spring set/air release brake for the retrofit and chose the Kobelt caliper brake for the solution. One of the big factors was the location of the brake which was on the backshaft. The caliper design allows maintenance of the brake shoes and actuators without disturbing the caliper or disc. The 2 inch thick ventilated disc from Kobelt allowed the press to operate constantly, more than doubling production.