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QW,QWZ5 Series Pneumatic drum brakes

Pneumatic drum brakes can be extensively used for various mechanisms deceleration and stop/braking of various hoisting, belt transport, port handling, metallurgical and building machinery which are equipped with pneumatic source on site.

Standards compliant:

  • The dimensions and braking torque parameters of QW series brakes comply with JB/T6406-2006 and DIN15435 standard, technology requirements comply with JB/T6406-2006 standard;

    The dimensions and braking torque parameters of QWZ5 series brakes comply with GB6333-86 standard, technology requirements comply with JB/T6406-2006 standard;
    QW and QWZ5 series brakes are equipped with new type QG series air cylinders.

Main design features:

  • Interlocking shoe clearance balancing device (patented technology) and shoe auto-aligning device constantly equalize the clearance of brake shoes on both sides and make adjustment unnecessary, completely avoiding brake lining one side sticking to brake wheel.
  • At main hinge points are equipped with self-lubricating bearings, which make higher efficiency of transmission and longer performance life, and lubricating is unnecessary during the course of operation.
  • Brake spring is arranged inside square tube and surveyor's rod is placed on one side. It is easy for customers to read braking torque value and then avoid the troubles of measuring and computing.
  • Brake lining is of card whole piece shaping structure, which is easy and quick to replace. Brake lining of various materials such as half-metal (non-asbestos) hard and half-hard, soft (include asbestos) substance are available for customer to choose.
  • New type of air cylinders are adopted which work acutely and have long life.