QW800-100 Series Pneumatic Drum Brake

The QW Series is a classic and widely adopted braking solution in the commercial vehicle industry. Despite the rise of disc brakes, the QW Series maintains a significant market share due to its cost-effectiveness and robust mechanical design.

to actuate the brake shoes against the drum.

65% market share in the commercial vehicle sector due to its low lifecycle cost.

Maintenance cost is significantly lower than disc brakes; a single brake shoe replacement costs less than one-third of a disc brake replacement.

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. These sensors connect to the vehicle's or machine's control system via , allowing for real-time health monitoring of the brake system.

The design philosophy focuses on keeping the robust mechanical foundation (drum and shoes) while adding electronic "nervous systems" (sensors) for diagnostics. This makes the QW series a viable solution even in the era of electrification and automation.

The series is noted for its durability. In harsh environments, components like the pneumatic actuators are tested for reliability up to 500,000 cycles, ensuring long-term operation without failure.

Heavy-duty trucks and buses where cost and ease of repair are prioritized.

Equipment utilizing pneumatic systems for control.

If your QW model is equipped with CAN Bus sensors, regularly verify the signal integrity to ensure the wear and temperature alerts are functioning.

Ensure the pneumatic air supply is clean and dry. Moisture in the air lines can lead to corrosion and valve failure over time.

Although modern brakes often have automatic adjustment, manually verify the brake shoe clearance periodically to ensure optimal performance.

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