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3103102-K00
HongPro
3103102-K00
Engineered for superior performance and reliability, our brake discs are precision-crafted to meet the exact specifications of Great Wall Motor vehicles. Constructed from high-quality grey cast iron, enhanced with a special carbon formulation, they ensure exceptional thermal conductivity and wear resistance. These discs undergo rigorous testing, demonstrating a ability to withstand temperatures exceeding 400-500°C without compromising structural integrity.
Features include advanced ventilation designs for optimal heat dissipation and a corrosion-resistant coating to prevent rust during storage and transit. This focus on material science and manufacturing excellence results in a 30% longer service life compared to generic alternatives, providing consistent braking power, reduced noise, and minimal vibration. Trust in our OEM-equivalent quality for a safer, more responsive driving experience, making them the intelligent choice for replacement and upgrade.
Crafted from high-carbon, high-grade grey cast iron, our brake discs offer a significantly extended service life. This specialized alloy provides superior tensile strength and wear resistance compared to standard materials. Rigorous dynamometer testing shows a 30% reduction in wear rate under high-stress cycling, ensuring consistent performance over time. This translates to longer intervals between replacements, providing greater value and reliability for your customers. Our focus on material science guarantees that every disc can handle daily commutes and demanding conditions without compromise.
Preventing brake fade is critical to safety. Our discs feature an optimized vane design that acts as a centrifugal fan, drastically improving airflow and heat dissipation. This engineering allows the disc to operate efficiently at temperatures consistently above 500°C, effectively managing the intense heat generated during braking. By rapidly cooling the rotor, this technology maintains optimal braking force and prevents the performance degradation common in inferior products, especially during downhill or stop-and-go driving.
We combat rust from the very beginning. Each brake disc is treated with a geomet-coated or zinc-plated layer on the non-friction surfaces, providing robust protection against corrosion during transit and storage. This coating has been proven to withstand over 120 hours of salt spray testing (ASTM B117 standard), ensuring the discs remain pristine and rust-free until installation. This not only guarantees a perfect look but also prevents seizing and ensures smooth operation, enhancing customer satisfaction and reducing returns.
Noise and vibration are common complaints with aftermarket parts. Our brake discs are manufactured with a focus on perfect balance and precise tolerances. Through CNC-machined mounting surfaces and a strict run-out tolerance of less than 0.05mm, we eliminate causes of brake judder and pulsation. The slotted design isn't just for performance; it also helps quietly sweep away debris and gases, ensuring a smooth, silent, and confident braking experience every time.
Trust is built on verifiable quality. Every production batch undergoes stringent quality checks, including dimensional accuracy, material hardness (maintaining a consistent 180-240 HB), and real-world simulation tests. Our brake discs are engineered to be 100% compatible with OEM specifications for Great Wall Motor vehicles, ensuring a perfect fit and seamless performance without the need for modifications. This OEM-equivalent quality, backed by our own rigorous standards, makes us a reliable partner in the automotive aftermarket.
| Parameter | Specification | Details & Standards |
| Material | High-Carbon Grey Cast Iron | Grade G3000 (or equivalent). Enhanced with Chromium (Cr) and Molybdenum (Mo) for improved strength and thermal stability. |
| Hardness | 187-241 HB (Brinell Hardness) | Ensures optimal wear resistance and durability, maintaining structural integrity under high stress. |
| Surface Finish | Non-Functional Surfaces: Geomet Coating / Zinc Plating | Provides superior corrosion resistance, passing >120 hours of neutral salt spray test (ASTM B117). |
| Disc Run-Out | ≤ 0.05 mm | Precision machining guarantees minimal lateral run-out for vibration-free (judder-free) braking. |
| Parallelism | ≤ 0.01 mm | Ensures even pad contact and consistent braking pressure across the entire rotor surface. |
| Thickness Variation | ≤ 0.005 mm (5 Microns) | Ultra-low tolerance prevents brake pulsation and ensures smooth, silent operation. |
| Minimum Thickness | Clearly Marked on Disc Hub (e.g., 22.0 mm) | Exceeds OEM safety standards. Replacing discs before reaching this minimum thickness is recommended. |
| Certifications | ISO 9001, IATF 16949 | Our manufacturing process is certified to international quality management standards for the automotive industry. |
Here are specific application scenarios of brake disc:
Navigate city streets with confidence. Our brake discs are optimized for the frequent, low-to-medium force braking inherent in daily commutes. The high-carbon material provides consistent bite and reliable stopping power from the first application, while the advanced vane design manages heat buildup from repetitive use. This ensures a smooth, responsive, and predictable braking experience during your everyday drives, reducing driver fatigue and enhancing safety in heavy traffic.
For delivery drivers, taxi operators, or anyone subjected to extreme stop-and-go conditions, heat is the primary enemy. Our discs' superior thermal conductivity, tested to withstand temperatures exceeding 500°C, effectively mitigates brake fade. This means braking performance remains stable even after dozens of applications per mile, preventing the dangerous performance drop that can occur with inferior rotors during a long day of city driving.
Built for durability beyond perfect roads. The geomet-coated surface provides a robust defense against road salt, humidity, and coastal air, preventing corrosion that can compromise performance and lead to noisy operation. Whether facing winter road treatments or rainy seasons, these discs maintain structural integrity and smooth function. This corrosion resistance is proven by over 120 hours of salt spray testing, ensuring long-term reliability and a pristine appearance.
For the driver who values a superior feel and proactive maintenance. When replacing worn components, our discs offer an OEM+ upgrade. The precision engineering with a run-out tolerance of less than 0.05mm eliminates vibrations and judder, providing a firmer pedal feel. Upgrading to our discs during routine maintenance is an investment in a quieter, smoother, and more confident driving experience, enhancing both vehicle safety and driving pleasure.
Product Operate Guide
To ensure optimal performance and longevity from your new brake discs, correct installation and a proper running-in procedure are essential. We recommend professional installation to guarantee torque specifications are met. After installation, a gentle running-in period of approximately 300 km is crucial. During this time, avoid heavy or panic braking where possible. This process allows the brake pads to gradually mate with the disc surface, transferring material evenly for maximum contact. This simple step ensures stable braking, prevents noise, and achieves the full performance and service life our products are engineered to deliver.
