Product Introduction
1014014161 High-performance Durable OEM-compatibl Front Shock Absorber for Geely MK
Our Front Shock Absorber is a critical suspension component engineered to enhance driving safety and comfort. It absorbs road impacts and dampens vibrations, with a vibration absorption rate exceeding 65%—surpassing the 40% minimum set by EUSAMA standards .
Built under ISO/TS 16949 certification , it features nitrogen gas charging and a fluon-banded piston for stable sealing . Undergoing 2.4 million cycle durability tests , it resists corrosion and wear, delivering reliable performance across diverse road conditions.
Product Advantage
Nitrogen-Charged Pressure Technology for Stable Performance
Our front shock absorber adopts advanced nitrogen-charged design, with a pressure of 1.8-2.2MPa that effectively separates oil and gas. This structure reduces oil foaming by 90% (tested against traditional oil-only shock absorbers) and maintains consistent damping force even under high-frequency vibrations. Certified by EUSAMA, it achieves a vibration attenuation rate of over 68%, far exceeding the industry average of 55%, ensuring smooth driving on rough roads.
Dual-Layer Coating for Long-Term Corrosion Resistance
To solve the problem of rust caused by rain, mud, and road salt, the shock absorber’s cylinder is coated with a 120μm thick zinc-nickel alloy layer (8 times thicker than ordinary electroplating) plus a top polyurethane layer. It passed 1000-hour neutral salt spray testing (per ASTM B117 standard) without red rust, extending the product’s service life to 50,000+ km—30% longer than standard corrosion-resistant front shock absorbers on the market.
Precision Fluorine Rubber Sealing System
The sealing assembly uses imported fluorine rubber (resistant to -40℃ to 200℃) with a multi-lip structure, which reduces oil leakage rate to less than 0.01ml/h (1/20 of ordinary rubber seals). This design not only avoids "squeaking" noise caused by oil shortage but also maintains stable damping performance for 2.5 million vibration cycles (tested by SGS). It effectively solves the common failure of traditional front shock absorbers due to seal aging.
High-Strength Piston Rod with Wear-Resistant Treatment
The piston rod is made of 45# high-carbon steel, precision grinding (surface roughness Ra≤0.05μm) and chrome plating (hardness HV≥850). It can withstand a maximum axial load of 8000N without deformation (tested by TÜV) and has a wear rate of only 0.002mm/1000 cycles—ensuring the durable front shock absorber maintains precise motion even after long-term use, avoiding performance degradation caused by rod wear.
ISO/TS 16949 Certified Production & 100% Quality Inspection
Every front shock absorber is manufactured in a factory certified by ISO/TS 16949 (the highest quality standard for the automotive industry). We conduct 100% offline testing before delivery, including damping force testing (error ≤±5%), air tightness testing (no leakage under 3MPa), and impact testing (surviving 5000N instantaneous impact). The pass rate reaches 99.8%, providing reliable quality assurance for global customers.
Technical Parameters
| Parameter Category | Specific Parameter | Unit/Standard | Testing & Certification Body |
| Basic Structure | Product Type | Nitrogen-charged twin-tube front shock absorber | EUSAMA (European Shock Absorber Manufacturers Association) |
| Working Medium | Hydraulic oil (ISO VG 46) + High-purity nitrogen (99.99%) | SGS Chemical Analysis |
| Cylinder Diameter | 54 mm (precision tolerance: ±0.02 mm) | TÜV Dimension Measuremen
|
| Piston Rod Diameter | 22 mm | TÜV Dimension Measuremen |
| Stroke Length | 120 - 180 mm (adjustable by model) | In-house Dynamic Test |
| Performance Index | Damping Force Range | Compression: 350 - 850 N; Rebound: 280 - 720 N | SGS Damping Force Tester |
| Vibration Attenuation Rate | ≥ 68% (exceeds EUSAMA minimum standard of 40%) | EUSAMA Certified Test |
| Operating Temperature Range | -40℃ ~ +120℃ | TÜV Thermal Cycle Test |
| Maximum Operating Pressure | 2.5 MPa | SGS Pressure Resistance Test |
| Material Specification | Cylinder Material | ST52-3 carbon steel (wall thickness: 3.5 mm) | Material Test Report (MTR) |
| Piston Rod Material | 45# high-carbon steel (hardness: HV ≥ 850) | Rockwell Hardness Test |
| Surface Coating | Zinc-nickel alloy (120 μm) + Polyurethane topcoat | ASTM B117 Salt Spray Standard |
| Seal Material | Fluororubber (FKM) | SGS Material Compatibility Test |
| Durability Test | Salt Spray Resistance | No red rust after 1000 hours | ASTM B117 Neutral Salt Spray Test |
| Vibration Cycle Life | ≥ 2.5 million cycles (no performance degradation) | SGS Dynamic Fatigue Test |
| Axial Load Capacity | ≥ 8000 N (no deformation) | TÜV Static Load Test |
| Oil Leakage Rate | ≤ 0.01 ml/h | In-house Sealing Test |
| Certification Standard | Quality Management System | ISO/TS 16949:2016 | IATF (International Automotive Task Force) |
| Product Safety Standard | ECE R90 | European Economic Commission |
| Environmental Standard | RoHS 2.0 (Restriction of Hazardous Substances) | SGS Environmental Test |
Product Uses
Here are specific application scenarios of Shock Absorber:
1.Urban Daily Commuting Scenarios
Targeting frequent starts/stops and dense manholes/speed bumps on urban roads, the nitrogen-charged front shock absorber quickly cushions bumps with a vibration attenuation rate of ≥68% (meeting EUSAMA standards). It reduces "bump fatigue" caused by frequent impacts on vehicles. Meanwhile, its fluororubber sealing system (resistant to -40℃~200℃) adapts to temperature differences between morning and evening in cities, avoiding abnormal noise from seal aging.
2.Rural/Unpaved Road Scenarios
For unpaved roads with gravel and potholes, the durable front shock absorber has passed 25,000 vibration cycle tests (SGS certified) and can withstand 5,000N instantaneous impacts. The 120μm zinc-nickel alloy coating on the cylinder (ASTM B117 standard) resists mud and gravel scratches to prevent corrosion, ensuring stable shock absorption performance even on complex road conditions and reducing maintenance frequency.
3.Load-Bearing Transportation Scenarios
Addressing the load requirements of freight/passenger vehicles, the product has an axial load capacity of 8,000N (TÜV test certified), which effectively offsets the additional pressure from loads. Its 45# high-carbon steel piston rod (hardness HV≥850) is not easily deformed. Combined with precise damping force (error ≤±5%), it prevents excessive body sagging under loads and improves driving safety.
4.High-Speed Long-Distance Driving Scenarios
During high-speed driving, vehicles are prone to being affected by crosswinds and slight road undulations. The nitrogen-charged front shock absorber maintains stable damping force, reducing body roll by 30% (compared to ordinary shock absorbers). The production process certified by ISO/TS 16949 ensures no performance degradation during long-term high-speed operation (continuous 8+ hours), enhancing handling stability.
5.Adverse Weather Scenarios (Rain, Snow, Salt Spray)
In rainy, snowy, and coastal salt spray environments, the product has passed 1,000-hour neutral salt spray tests (ASTM B117 standard) without red rust. The waterproof sealing design prevents rainwater from seeping into the cylinder and avoids oil emulsification. Even on icy and snowy roads at -40℃, it can quickly respond to shock absorption needs, ensuring driving safety in low-temperature environments.
Product Operate Guide
For optimal performance, install the front shock absorber by professionals adhering to ISO/TS 16949 standards—tighten piston rod nuts to 35-40 N·m to avoid abnormal noise. Inspect seals and oil leakage every 10,000 km; replace seals if leakage exceeds 0.01 ml/h. Never exceed its 8,000 N axial load capacity. This follows SGS’s 2.5 million-cycle durability test requirements, ensuring long-term reliable use.
