passenger car heavy duty grey hat Brake Discs

• Being a world leading professional brake parts manufacturer, Winhere produces more than 55 million units of brake discs and 10 million sets of brake pads annually for OEM and IAM. 

• 96%+ car parc coverage of brake discs and brake pads from A to Z for both passenger cars and commercial vehicles. 

• IATF16949, ISO14001, ISO45001, ECE R90, CNAS certificated. 

• National Green Manufacturer and China’s Champion Enterprise awarded by M.I.I.T. and C.F.I.E. 

• National Standard of “Brake Disc for Automobile” GB/T 34422-2017 is led by National Quality Supervision and Inspection Center for automobile parts, Winhere is the responsible drafting company for this national standard.

Key Features 

1. Dual‑value design: OE‑level braking performance plus full anti‑rust protectionBased on qualified standard vented rotor substrate, anti‑corrosion coating covers hat, bolt holes and outer rim, while friction surfaces remain uncoated for pure metal‑to‑pad contact. It keeps original factory‑equivalent braking capability and solves the long‑standing aftermarket pain point of cosmetic rust during sea freight and long‑term warehousing, no compromise on core brake performance.

2. Coating formula optimized for cyclic high‑temperature working conditionsAdopts heat‑resistant dip‑spin curing coating instead of ordinary spray paint. Repeated heating and cooling generated during daily braking will not trigger blistering, peeling or powder shedding. The anti‑rust layer maintains integrity throughout the whole service cycle of the rotor, avoiding coating debris contaminating brake pads.

3. Integral one‑piece vent‑vane structure with internal cavity process optimisationVanes are cast as a single unit with disc body, eliminating fracture risk. Special spinning speed and tooling prevent coating residue from staying trapped inside ventilation channels. No residual foreign matter inside vanes to scratch friction surfaces under high‑temperature operation.

4. Reduced after‑sales disputes driven by visual appearanceUncoated rotors easily develop surface rust on non‑friction areas after months of humid ocean shipment. Even though such rust disappears after several brakes, it frequently causes unnecessary customer complaints and returns. The coated version delivers clean factory‑new look when unpacked, greatly lowering appearance‑related claim rates for distributors and repair shops.

Market‑position perspective

This is an upgraded mid‑tier SKU between standard vented rotors and performance drilled‑slotted rotors. Ideal for cross‑border export, coastal high‑humidity markets and regions with winter road salt. Wholesalers can build three‑tier product portfolio: economy standard version, anti‑rust coated version, high‑end performance drilled‑slotted version to cover diverse customer budgets.

• 100% critical dimensions, runout and DTV inspection 

• Material physical and chemical inspection

• Test shear strength, compressibility, density, flatness and parallelism 

• Test performance and noise/NVH