RailMac Unit Brake Cylinder
CRRC Braking Systems Co., Ltd.’s unit brake cylinder products feature a modular design with compact structure, high transmission efficiency (≥85%), and easy maintenance.Core innovations include a built-in automatic gap adjustment mechanism for precise compensation of brake pad wear, maintaining a constant braking gap.Some models integrate a spring parking brake function for additional safety.The products are certified by CRCC and are suitable for high-speed locomotives, urban rail vehicles, and heavy freight trains.
Advantages of RailMac Unit Brake Cylinder
- Modular compact design, easy to maintain.
- High transmission efficiency (≥85%).
- Built-in automatic gap adjustment for stable braking.
- CRCC certified, spring parking brake for extra safety.
Bogie Components Series Products
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Brake Control Valve
CRRC’s brake control valves cover EP valves and relay valves for diverse rail vehicles, boasting high-precision electro-pneumatic conversion & pressure control. With modular piston structure and electromagnetic control, they boost braking reliability and maintenance cycles, ensuring safe, efficient operation of high-speed trains, locomotives and urban rail transit.
Distribution Valve
CRRC’s distribution valves adopt self-developed piston O-ring sealing (instead of slide valves) for enhanced reliability and a 6-year maintenance cycle. With stage braking/relief, 10kPa high-precision pressure control and vibration resistance, they ensure safe operation for high-speed trains, locomotives and urban rail vehicles.
Disc Brake Caliper
CRRC’s disc brake calipers adopt hydraulic/pneumatic-hydraulic drive, with auto gap adjustment and modular floating structure for precise braking. Integrated drive-parking functions, 18x force amplification, harsh-environment resistance, fit high-speed trains, locomotives and urban rail vehicles.





