PV Heavy Duty Grooved 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.

Heavy-Duty Structural Reinforcement Design：

•Reinforced Friction Ring Thickness

PV Heavy Duty series discs feature a reinforced friction ring design with increased wall thickness compared to standard passenger car discs. This added material mass provides greater thermal capacity, allowing the disc to absorb and dissipate more heat during repeated heavy braking cycles. For heavy-duty applications such as towing, mountainous terrain, or loaded vehicle operation, the enhanced thermal mass significantly delays the onset of brake fade, ensuring consistent stopping power over extended descent periods.

•Optimized Metallurgical Composition

The disc material is formulated specifically for heavy-duty duty cycles, with a balanced carbon and alloying element content that prioritizes durability and thermal crack resistance over ultra-high performance track applications. This metallurgical approach ensures the disc maintains structural integrity under sustained thermal stress without compromising friction performance

Brake Disc Features:                                                   

•Equivalent to OE design 

•Smooth and quick stop 

•Anti-rust 

PV Heavy Duty discs incorporate a comprehensive anti-corrosion treatment applied to all non-friction surfaces. The coating system is engineered to withstand harsh environmental conditions, including road salt, moisture, and brake fluid exposure. This protection prevents rust from migrating from the hub mounting area onto the friction surface, a common failure mode that leads to uneven pad wear and brake judder.

By preventing corrosion-induced surface degradation, the anti-rust treatment contributes directly to extended disc service life. This is a significant maintenance cost consideration for heavy-duty vehicle owners, as disc replacement intervals are extended without compromising safety.

•Low noise, low dust 

•Optimal thermal performance 

Brake Pad Features:

•High performance 

PV Heavy Duty brake pads are formulated with a friction compound optimized for heavy vehicle applications. The material chemistry ensures stable friction output across a wide operating temperature range, from cold morning starts to sustained high-temperature downhill braking. Anti-thermal-fading properties are explicitly engineered into the pad formulation, providing the driver with predictable braking performance in all conditions.

•Long-life service 

The pad compound is engineered for extended service intervals, with wear characteristics optimized for the heavier loads and higher braking energies typical of PV vehicles. The combination of the grooved disc surface and the wear-resistant pad formulation works synergistically to distribute wear evenly across the pad surface, maximizing pad service life.

•Anti-thermal-fading

•Low noise, low dust 

PV Heavy Duty pads produce significantly less visible brake dust compared to traditional semi-metallic formulations. The reduced dust generation not only keeps wheels cleaner but also contributes to the overall cleanliness of the braking system – less dust accumulation on the disc surface means more consistent pad-to-disc contact and fewer opportunities for noise-causing debris to embed in the pad material.

•Environmental-friendly

• 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