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AC Electro-magnetic Brake

Quick Overview


For infallible operation of machinery, modern methods are necessary, any machine which requires its motion to be controlled, whether it is a lifting Crane, Hoist, Winch or Mining Haulage today employs an Electro Magnetic Brake, enabling the operator not only to control the motion but also to hold the load at any desired point without danger of falling, merely by release of the starting handle. Electro magnetic Brake is adequate equipment for safer operations of machinery. Electro magnetic Brakes are used when a load must be stopped rapidly to prevent it from rotating. Electro Magnetic Brakes find its use in Paper Mills, Drives of certain textile machines, Sugar Mill Machinery, Rubber Mixing Mills. ..

Assembly and Function

The Shoes are of cast iron and other components are of fabricated steel. The lever is hinged on the main arm, which is connected to the side arm through a tie rod, and is stressed by a pre-loaded compression spring. The compression of the spring can be adjusted to set the braking torque to desired value. The brake liner of selected quality material is riveted to the shoes by aluminum rivets. A.C. solenoid with laminated magnetic sheet steel houses a copper magnetizing coil which is impregnated with Class F materials. The plunger which is connected to the lever, is drawn in to the coil, when it is energized with AC source. This loads the spring and releases the brake shoes from the brake drum. When the supply is cut off, the plunger is pulled out of the coil, and spring force clamps the brake shoes on the brake drum and the brake is applied.


  • Compact design
  • Fail safe
  • Reliable in operation
  • Clean work environment
  • Braking torque can be easily adjusted
  • Requires less maintenance