September 24 , 2026

Decades of Braking Expertise: How Huaihai Auto Parts Builds the "Safety Foundation" for New Energy Vehicles

In today's rapidly evolving new energy vehicle (NEV) industry, the braking system serves as the "lifeline" for overall vehicle safety. The quality of its core component — the brake disc — directly affects the safety of every journey.

Focusing on automotive chassis core components, Huaihai Auto Parts leverages its key advantage of vertically integrated, in-house manufacturing capabilities to establish a complete closed loop from raw materials to finished product inspection. The company provides high-reliability, long-life brake disc solutions for NEV manufacturers, taking concrete actions to fortify the safety line.

I.Material Excellence: Carefully Selected Base Materials to Eliminate Performance Risks at the Source

Huaihai Auto Parts understands that the key to stable brake disc performance under high-frequency braking and high-temperature conditions lies in precise control of material composition. The company operates ten captive foundry divisions and is equipped with advanced testing equipment such as German-made SPECTRO spectrometers and pre-furnace rapid carbon-silicon analyzers. These enable real-time chemical composition analysis of molten iron and aluminum, ensuring precise control of carbon content and the ratios of alloying elements such as molybdenum and nickel. This guarantees that the materials fully meet specified grades, laying a solid quality foundation for manufacturing.

II.Foundry Excellence: Precision Casting to Ensure Blank Forming Quality

Casting is the "skeleton" of brake disc quality, directly determining the internal structure and mechanical properties of the product. Huaihai Auto Parts has introduced DISA vertical and HWS horizontal fully automatic casting lines. Through automated and standardized production processes, human variability is minimized, ensuring consistent forming quality for every casting.

Notably, after the casting blanks are formed, Huaihai Auto Parts employs non-destructive testing methods such as X-ray inspection and magnetic particle inspection to detect hidden defects like porosity, shrinkage, and cracks. This eliminates quality risks at an early stage, providing a reliable foundation for subsequent precision machining.

III.Machining Excellence: Micron-Level Precision Control for Smooth Braking Performance

The dimensional accuracy and geometric tolerances of brake discs directly affect braking smoothness and safety. Huaihai Auto Parts has equipped over 1,000 high-precision CNC machining centers from Japan's Mazak and Korea's WIA to precisely control critical dimensions such as brake disc thickness, runout, and mounting hole positions, achieving micron-level precision machining.

In addition, the company has introduced 40 sets of Merilink intelligent in-line inspection systems and SPC (Statistical Process Control) technology. This establishes a closed-loop control model of "real-time monitoring – data collection – trend prediction – timely adjustment," monitoring critical processes to "prevent errors before they occur." This ensures that every brake disc meets precision requirements with consistent quality.

IV.Testing Excellence: Closed-Loop Rigorous Testing to Build a Quality Safety Fortress

Final product inspection is the last line of defense before brake discs leave the factory and the "closing step" in the entire quality control process. Huaihai Auto Parts strictly follows the IATF 16949:2016 quality management system requirements and performs comprehensive inspection procedures before shipment, covering three dimensions:

Conclusion