Application Profile Spring-Set Brakes Offshore Platform King Post Cranes Product Application P-8688-WC 2/19 A major global manufacturer of oil and gas drilling rigs and equipment required a winch braking solution for its king post cranes with lifting capacities up to 2,720 metric tons. The space-saving heavy-lift cranes are used to transfer equipment from support vessel decks to the platform deck. They also raise and lower equipment to and from the seabed. Since they are post-mounted directly to the rig, no counterweights are needed. The brakes are used for static holding and emergency stopping. Wichita Clutch provided spring-set, air released 136H brakes to meet the large winch application requirements. Positioned on the winch cable drums, the heavy-duty brakes have a slip

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