Beijing Puran Railway Braking High-tech Co., Ltd. possesses extensive expertise in the overhaul and maintenance of electronic boards and modules for rail vehicles, supported by comprehensive qualifications and advanced technologies.

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The Company holds electrical equipment maintenance certifications for high-speed trains and metro systems issued by the European Rail Union. In 2020, it was awarded the Level 5 Maintenance Qualification by CRRC Changchun Railway Vehicles Co., Ltd., becoming one of the first companies in China to achieve comprehensive testing capabilities, advanced technologies, and fully traceable verification methods in this field.

The Company adheres to stringent quality standards in component procurement. Key components are sourced directly from original manufacturers, while general components are selected from leading domestic and international suppliers. For discontinued parts, the Company is capable of developing parameter-compatible alternatives.

It has independently developed more than ten types of circuit boards, including traction unit controllers, auxiliary unit controllers, temperature acquisition modules, voltage detection modules, and MVB network detection modules.

At present, the Company has established independent overhaul capabilities for a full range of core controllers and power modules, including:

Traction Control Unit (TCU)

Brake Control Unit (BCU)

Central Control Unit (CCU)

Traction rectifier modules

Traction inverter modules

Auxiliary inverter modules

Battery charger modules

The Company is capable of performing overhaul and verification of various electronic boards and modules used in high-speed EMUs, intercity trains, metro systems, and locomotives.

Its customers include major rolling stock manufacturers, railway bureaus, and metro operators such as CRRC Changchun and CRRC Sifang, with stable mass delivery capabilities.

The Company is also steadily expanding into overseas markets, having successfully secured electronic maintenance service orders from customers in Thailand and Malaysia.