Auto Coated Ventilated Spare Parts Front Brake Disc(Rotor) for OE#SDB000623/SDB000624

• 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.

Product‑level characteristics

1. Integrated whole‑part anti‑corrosion protection

   The mounting hat, outer circumferential edge and ventilation duct openings receive continuous protective coating coverage. Only the friction working surface is kept raw cast‑iron status, avoiding any coating substance interfering with brake pad friction contact. Even during long‑term warehousing and cross‑ocean logistics transit, rust discoloration on non‑braking areas can be effectively suppressed, delivering neat visual presentation for retail shelves.

2. High‑temperature‑stable protective film layer

   Adopt dip‑spin curing coating technique instead of conventional spray paint. The formed protective layer features good heat‑resistance property. When brake disc rises in temperature under frequent braking, the coating will not soften, blister or flake off, maintaining intact anti‑rust performance in long‑term service.

3. Optimized internal ventilation architecture

   Inner vane channel structure is scientifically configured. While ensuring overall mechanical strength of brake rotor, it accelerates hot‑air circulation inside the disc body. It rapidly carries away heat accumulated in heavy‑duty braking scenarios, lowers working temperature of friction zone, and reduces thermal‑deformation tendency.

Manufacturing‑derived advantages

1. Precision dimensional consistency matching OE assembly requirement

   Through multi‑procedure CNC turning, the hub mounting plane, central positioning bore and wheel bolt holes keep tight geometric tolerance. It guarantees smooth direct replacement installation without modification, well compatible with original‑spec wheel hubs and wheel hubs.

2. Fine‑processed friction braking faces

   Dual‑side finishing grinding is applied for two friction surfaces. Strictly control thickness deviation and end‑face run‑out of disc surface. It helps restrain steering wheel shudder and brake pulsation during high‑speed braking, meanwhile slowing down uneven local wear of matching brake pads.

3. Rotor dynamic balance guaranteed

   Each ventilated brake rotor finishes dynamic‑balance calibration one‑by‑one. Offset the weight deviation brought by casting and machining. Eliminate abnormal vibration source generated when the disc rotates at high vehicle speed.

4. Reliable base material performance

   High‑carbon grey cast iron blank goes through stress‑relief annealing treatment. Internal casting residual stress gets released. The disc body owns balanced hardness and tensile property, coping with cyclic cold‑hot impact from daily braking and lowering risk of crack & distortion.

5. Strict coating appearance screening

   Finished products carry out full visual check for coated area. Reject parts with coating missing, bubbling and poor adhesion. Friction surface is double‑checked to rule out residual coating contamination.

Business & application features

1. Wide‑range model adaptability

   Product portfolio covers ventilated rotors as well as solid brake discs, covering mainstream passenger vehicle applications. Support sample development according to OE numbers or customer drawings.

2. Flexible custom‑enable solution

   Capable for private‑label marking on mounting hat area, matched with diversified packaging solutions for full‑container and less‑than‑container sea shipment. Meets procurement demands for distributors, repair chains and retail merchants.

• 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