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3103102-F00
HongPro
3103102-F00
Engineered for reliability and safety, our brake discs are precision-crafted to meet the rigorous demands of Great Wall Motor vehicles. Constructed from high-quality grey cast iron, they undergo strict heat-treatment processes, enhancing their thermal capacity to withstand temperatures exceeding 500°C while minimizing the risk of warping and cracking.
Featuring advanced ventilation designs and precision machining, our discs ensure superior heat dissipation, consistent braking performance, and reduced brake fade. Each unit is rigorously tested to OE standards, guaranteeing a perfect fit, exceptional durability, and a 30% longer service life compared to conventional alternatives. Trust in our expertise for a smooth, quiet, and safe driving experience, backed by proven performance data and unwavering quality.
Crafted from high-grade G3000 cast iron, our brake discs offer exceptional structural integrity and thermal management. The optimized internal vane design increases airflow by up to 25% compared to conventional discs, drastically improving heat dissipation. This advanced ventilation system effectively reduces operating temperatures by 15-20%, directly combating brake fade during repeated heavy use and ensuring consistent stopping power. This focus on thermal control is critical for the safety and performance of Great Wall Motor vehicles.
We combat rust from the very first step. Each disc undergoes a specialized anti-corrosion coating process, providing 360-hour protection in salt spray tests (exceeding standard 120-hour requirements). The friction surface is precisely ground and treated to prevent rust buildup during storage and transit, guaranteeing a flawless, ready-to-install appearance. This results in a 40% longer shelf life and superior performance from the first application, reducing customer complaints and returns.
Every brake disc is manufactured to exact OE specifications, ensuring a perfect fit without any modification required. Our precision machining achieves a surface roughness of less than Ra 12.5 µin, which promotes optimal pad bedding-in and significantly reduces judder and noise (NVH). This meticulous attention to dimensional accuracy and surface finish guarantees quiet, smooth operation and eliminates vibration, leading to higher customer satisfaction.
Trust is built on consistent quality. Our production process includes 100% dimensional checks, dynamic balance testing to within 15 g-cm, and material hardness verification (HRB 88-96). We employ non-destructive testing to eliminate internal defects. This data-driven approach ensures every rotor leaving our factory delivers reliable performance, a service life extended by over 30%, and meets the stringent demands of both the aftermarket and professional installers.
Safety is non-negotiable. Our brake discs are engineered for a stable and high coefficient of friction (µ) from cold to high operating temperatures. This provides shorter, more predictable stopping distances and superior braking response in various driving conditions. By minimizing the risk of thermal cracking and warping, our discs offer unwavering safety and reliability, giving your customers the confidence they need on the road.
| Category | Specification | Details & Standards |
| Material & Metallurgy | Primary Material | High-Grade Grey Cast Iron, G3000 (Equivalent to GG-15/GG-20) |
| Hardness | 187-241 HB (Brinell Hardness) | |
| Microstructure | Fine Pearlitic Structure, ensuring consistent strength and wear resistance. | |
| Dimensional Accuracy | Diameter Tolerance | ± 0.5 mm |
| Thickness Tolerance | ± 0.02 mm | |
| Run-Out (Lateral) | ≤ 0.05 mm | |
| Performance & Testing | Dynamic Balance | ≤ 15 g-cm (Precision-balanced for smooth operation at high speeds) |
| Thermal Capacity | Withstands sustained temperatures up to 500°C, peak temperatures up to 650°C. | |
| Crack Testing | 100% Magnaflux Inspection to eliminate internal and surface defects. | |
| Surface Treatment & Coating | Friction Surface | Precision Ground, anti-rust oil treated. |
| Non-Friction Surface | Geomet®-style Anti-Corrosion Coating applied (Salt Spray Test Resistance: > 360 hours). | |
| Key Features | Internal Vanes | Optimized, curved vane design for maximum airflow and heat dissipation. |
| Mounting Holes | CNC-machined for perfect hub-centric fit and vibration-free performance. |
Here are specific application scenarios of brake disc:
In city driving, brakes are used frequently, leading to consistent heat buildup and wear. Our brake discs are specifically designed with advanced thermal dissipation to handle this constant cycling. The high-quality material resists warping, while the precision-machined surface ensures smooth, quiet, and judder-free stops in traffic, enhancing driver comfort and safety during daily errands and the school run.
For fleet vehicles, delivery vans, or ride-sharing cars that accumulate mileage rapidly, durability and cost-effectiveness are paramount. Our discs offer a service life extended by over 30% compared to standard alternatives. This robust construction, verified by rigorous testing, minimizes downtime and reduces the total cost of ownership, making them an intelligent choice for businesses that rely on their Great Wall Motor vehicles for revenue generation.
Driving in mountainous regions or areas with frequent rain requires brakes that perform reliably under stress. Our discs' superior heat treatment allows them to withstand temperatures exceeding 500°C, combating brake fade on long descents. Furthermore, the anti-corrosion coating provides 360-hour salt spray resistance, ensuring integrity and performance in wet, snowy, or coastal environments where rust is a major concern.
For drivers who prioritize responsive braking and vehicle safety, our discs provide a significant upgrade. The optimized friction formula and stable coefficient of friction lead to shorter, more predictable stopping distances. This enhanced performance margin is crucial for safe highway driving, emergency maneuvers, and for those who tow light trailers, providing peace of mind through unwavering stopping power.
When replacing worn brake pads, installing a new set of our high-performance brake discs is the best practice for a complete brake system overhaul. Our OE-matching specifications guarantee a perfect fit, eliminating installation issues. This ensures a balanced, vibration-free system, prevents premature pad wear, and delivers a reliable, long-term solution that build trust and satisfaction with your end-customers.
Product Operate Guide
To ensure optimal performance and safety, correct installation is crucial. Always start by thoroughly cleaning the new brake disc and the vehicle's hub surface to remove any debris or corrosion. Apply a high-temperature anti-seize compound to the hub to prevent parts from seizing. Use a torque wrench to tighten the wheel nuts to the vehicle manufacturer's specified torque value, typically between 90-120 N·m, to avoid warping. Before driving, pump the brake pedal several times to restore hydraulic pressure. Conduct a gentle, low-speed test brake to bed the pads and discs properly for consistent, long-lasting performance.
