YWH, YWK, RWK Series
Electric-hydraulic Drum Brakes
  • Interlocking shoes balancing devices (patent technology) constantly equalizes the clearance of brake shoes on both sides and make adjustment unnecessary, thus avoiding one side of the brake lining sticking to the brake wheel. The brake is equipped with a shoes auto-aligning device.
  • Main hinge points are equipped with self-lubricating bearing,making 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 (YWH series).
  • Brake lining is of card whole-piece shaping 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.
  • Adopt the company's new types of thruster as corollary equipment which work accurately and have long life(YWH serier).

 OPTIONS  (YWH seriers)

  • Hand released lever.
  • Release (open) or close limit switch, indicates whether brake is properly released or closed and realize 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.
  • Adopt thruster with fall delay valve as drive system,this an realize closing delay of brake.


  • The YWH series brake has a compact construction. It is mainly used for mechanism deceleration and stop/braking of various cranes, belt conveyors, port handling and met-allurgical machinery. The dimension and parameter comply with JB/T6406.1-92 the current Chinese standard and the German DIN15435 standard, adopting Ed series thruster (to comply with DIN15430) as driver. Mainly used for design of new machinery. Ananti-corrosive product is available.
  • The dimensiond and braking torque paremeters of YWK normal open drum brakes comply with JB/T6406.1-92 standard(current Chiness Trade Standard)and German DIN 15430 standard.Mainly used as deceleration braking of various general bridges and pordges and portal crane's gantry traveling machanism.It can also be used deceleration/braking of drive machanism of non-lift winch.
  • The RWK series brake is a normally opened brake, which operates by foot. Mainly used for deceleration braking of various middle and small crane gantry traveling mechanisms.