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YWL Series Electro-Hydraulic Drum Brakes

YWL series brakes are two-step brakes which acted on high speed shaft drive mechanism. They can be used for operational brakes and storm brakes. During operation, the brake first generates an adjustable partial torque to realize soft and smooth braking until the machinery stops running, then it starts the second braking to maintain storm braking by providing enough brake torque. The second braking can adjust the delay time compared to the first braking. They are mainly used for storm braking of outdoor cranes and port handling machinery, and as service braking for middle and large belt conveyors.

 

Main design features:
■Interlocking shoes balancing devices (patented technology) constantly equalizes the clearance of brake shoes on both sides and makes adjustment unnecessary, thus   completely avoiding brake lining one side sticking to the brake wheel. The brake is equipped with a shoes auto aligning device.
■Main hinge points are equipped with self-lubricating bearing, giving high efficiency of transmission, long service life. Lubricating is unnecessary during operation.
■The brake spring is arranged inside a square tube and a surveyor's rod is placed on one side. It is easy to read braking torque value and avoid measuring and computing.
■Brake lining is of card whole-piece shape structure, easy to replace. Brakes lining of various materials such as half-metal (non-asbestos) hard and half-hard, soft (including asbestos) substance are available for customers to choose.
■All adopt the company's new types of thruster as corollary equipment which work accurately and have long life.

 

Options:
■Hand released lever.
■Release (open) or close limit switch, indicates whether brake is properly released or closed and give interlocking protection.
■Lining-wear limit switch, indicates when wear of lining reaches the limit (Note: self-compensator should be attached simultaneously).
■Wear-self-compensator effects self-compensation of shoe clearance and torque when lining wears.