Product Introduction
B11-2902011 Durable Superior Trusted Coil Spring for Chery
Engineered for superior suspension performance, our coil springs are precision-crafted to enhance ride stability and load-bearing capacity. Manufactured using high-tensile boron steel (1,800 MPa tensile strength), they resist sagging and fatigue, tested to endure over 1.2 million compression cycles (exceeding ISO 16750-3 standards). Compliant with OE-fit specifications, these springs maintain optimal ride height and damping, reducing noise/vibration by 15% vs. generic alternatives (lab-tested). Backed by IATF 16949 certification, they deliver consistent durability across diverse driving conditions, trusted by global aftermarket distributors for their precision and longevity. Ideal for maintaining tip-top suspension integrity.
Product Advantage
1. High-Tensile Boron Steel for Unmatched Durability
Forged from 1,800 MPa high-tensile boron steel—30% stronger than conventional spring alloys—our coils resist sagging, cracking, and fatigue even under repeated heavy loads. Tested to endure 1.2 million+ compression cycles (surpassing ISO 16750-3 standards), they deliver 2x longer service life than generic options. Decades of automotive suspension R&D back this material choice, ensuring long-term reliability for demanding driving conditions.
2. Precision OE Fit—Zero Installation Hassles
Manufactured with ±0.5mm tolerance to strict OE specifications, our springs match original dimensions exactly: consistent coil diameter, free length, and end-coil angles eliminate fitment gaps. CNC-controlled production guarantees uniformity, reducing workshop downtime and ensuring optimal suspension geometry. Trusted by global aftermarket partners for “drop-in” compatibility, we take the guesswork out of repairs.
3. Enhanced Stability & Load Retention
Designed to combat body roll and sag, our springs maintain 95% of original ride height under a 500kg static payload (verified via SAE J670e testing). They improve lateral stability by 10% vs. competitors, reducing uneven tire wear and enhancing cornering safety. This targeted performance upgrade solves common pain points for drivers prioritizing control and longevity.
4. IATF 16949-Certified Quality—No Compromises
Produced in an IATF 16949-certified facility, every batch undergoes third-party testing (ISO 16750-3 for environmental stress, SAE J2275 for fatigue). We’ve shipped 500,000+ units to global distributors with zero quality complaints—proof of our commitment to consistency. This certification isn’t just a credential; it’s your assurance of automotive-grade precision.
5. 15% NVH Reduction for Smoother Rides
Optimized coil windings and shot-peened surfaces dampen vibrations, cutting noise, vibration, and harshness (NVH) by 15% vs. generic coils (lab-tested per ISO 5008). The result? A quieter, more comfortable cabin—ideal for long-haul drivers or those sensitive to road imperfections. We balance rugged durability with refined performance, setting our springs apart.
Technical Parameters
| Parameter | Specification | Test Standard/Validation |
| Material | High-Tensile Boron Steel | 1,800 MPa Tensile Strength (ASTM A1073) |
| Spring Rate | 8–12 N/mm | Customized for Target Load Capacity |
| Free Length | 250–350 mm | ±0.5 mm Tolerance (Dimensional Consistency) |
| Wire Diameter | 8–10 mm | CNC-Controlled Coiling for Uniformity
|
| Outer Diameter | 100–120 mm | Matches Original Suspension Geometry |
| Effective Number of Coils | 5–7 | Optimized for Ride Comfort & Load Retention |
| Fatigue Life | ≥1.2 Million Compression Cycles | ISO 16750-3 (Environmental Stress Testing)
|
| Dimensional Tolerance | ±0.5 mm (Length, Diameter, Coil Angle) | IATF 16949 & OE Fit Compliance |
| NVH Reduction | Up to 15% vs. Generic Coils | ISO 5008 (Vibration/Noise Lab Testing) |
| Certification | IATF 16949:2016 | Third-Party Audited Manufacturing Process |
Product Uses
Here are specific application scenarios of Coil Spring:
1. Daily Commuting & Urban Driving
Our coil springs optimize urban rides by smoothing potholes, speed bumps, and uneven pavement. Lab-tested to cut 15% NVH (ISO 5008), they maintain consistent ride height and reduce vibrations—critical for comfort during stop-and-go traffic. Backed by IATF 16949 certification, they deliver long-term reliability for commuters prioritizing a quiet, stable daily drive.
2. Rough Road & Light Off-Road Use
For gravel, dirt, or potholed rural routes, our springs endure 1.2 million+ compression cycles (ISO 16750-3). Boron steel’s fatigue resistance minimizes cracking, while optimized geometry keeps suspension responsive—letting drivers tackle tough terrain without sacrificing safety or control.
3. Aftermarket Replacement & Workshop Efficiency
Engineered to strict OE specs (±0.5mm tolerance), they offer “drop-in” installation—no modifications needed. Trusted by global distributors for 500k+ units shipped with zero quality complaints, they cut workshop downtime and ensure hassle-free repairs for end-users.
4. Performance Enthusiast Upgrades
Seeking sharper handling? Our springs reduce body roll by 10% vs. generic options (independent testing). They restore factory suspension geometry worn by age, enhancing cornering stability and safety—perfect for upgrading performance without replacing OEM components.
Product Operate Guide
Pre-Install Check: Compare old springs to ours—match ±0.5mm OE tolerances (no sagging/cracks).
Safe Installation: Use a spring compressor; tighten to OE torque specs (12-15Nm) to prevent deformation.
Post-Install Verify: Confirm ride height returns to ≥95% original (SAE J670e) and enjoy 15% less NVH (ISO 5008-tested). IATF 16949-certified reliability means worry-free driving from day one.
