Product Introduction
S2905200 High-Performance Rugged Optimized Shock Absorber for Lifan
Backed by Lifan’s 20+ years in automotive components, this shock absorber delivers core damping performance to stabilize suspension, reducing post-bounce oscillations by 35% vs. generic counterparts (lab-tested). Crafted with mono-tube design and high-viscosity fluid, it ensures consistent heat dissipation and responsive control. Rigorous validation includes 1M+ cycle fatigue testing (-40℃ to 85℃) and ISO/TS 16949 certification, guaranteeing durability across extreme conditions. Engineered for multi-vehicle compatibility, it elevates both comfort and handling—trusted by aftermarket professionals globally.
Product Advantage
1. Patented Monotube Gas-Charged Design for Unfading Damping
Our shock uses a precision monotube structure with nitrogen gas charging—minimizing heat retention that causes "fade" in twin-tube units. Lab tests prove ＜2% damping output deviation over 10,000 compression cycles (30% better than generic alternatives). This ensures consistent control on rough roads: reducing body roll by 30% in cornering and brake dive by 25% during hard stops. Trusted by aftermarket pros for stable, fade-resistant performance.
2. Precision Machining & Zero-Leakage Sealing
Crafted with ±0.01mm CNC-machined piston valves and Japanese NOK seals, this unit eliminates internal leaks for up to 1 million cycles. The optimized valve stack delivers linear damping—balancing comfort for daily drives and responsiveness for spirited use. Every shock undergoes 100% pressure testing at 200 bar to meet Lifan’s OE quality standards.
3. Global Extreme Environment Validation
Certified to ISO/TS 16949, our shocks survive:
-40℃ cold starts (builds full damping in 10 seconds),
85℃ high-heat endurance (500 hours without performance drop),
1,000+ hours of salt spray (exceeds ASTM B117 for corrosion resistance).Tested across 5 continents, it performs in deserts, snow, and coastal areas without degradation.
4. Universal Fitment for Hassle-Free Installation
Engineered to Lifan’s original specifications, it fits mainstream suspensions (MacPherson/multi-link) with ±0.5mm installation clearance. Compatible with 14-18” wheels and most aftermarket springs—no modifications needed. Backed by a 2-year warranty, it cuts installer downtime and ensures a perfect end-user fit.
5. Measurable Performance Upgrades
Compared to generic units, our shock reduces road noise by 15% at 60km/h (via tighter piston seals) and improves tire contact patch consistency—extending tread life by up to 20%. The dual-rate spring design adapts to varying loads, keeping ride height stable even with heavy cargo.
Technical Parameters
| Category | Parameter | Specification | Testing Standard/Validation |
| Structural Design | Type | Monotube gas-charged with floating piston | Patented Lifan design minimizing heat buildup; prevents "fade" in high-load scenarios |
| Overall Length | 285-395mm (adjustable mounting tabs) | ±0.5mm tolerance; fits standard suspension eyelets without modification |
| Body Diameter | Φ28mm (main tube); Φ18mm (piston rod) | Hard chrome-plated piston rod (50μm thickness) resists corrosion and wear |
| Performance Metrics | Damping Force Range | Low-speed: 80-180N; High-speed: 350-650N | Linear valve stack design; 25% faster response vs. generic twin-tube shocks (lab-tested) |
| Operating Temp Range | -40℃ to +120℃
| Nitrogen gas pressure maintained at 0.6-0.8MPa across temp extremes; no viscosity drop |
| Rebound/Compression Ratio | 1:1.2 (optimized for balance between comfort and control) | Tuned via CNC-machined valve orifices; tested on ISO 16231-2:2018 vibration platform |
| Material & Durability | Piston Valve Material | Stainless steel 304 with Teflon coating | 0.01mm precision machining; ensures consistent flow rate under 10bar pressure
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| Sealing System | Double-lip NOK seal + fluororubber buffer ring | 1 million compression cycles (5Hz, 50mm stroke) with zero leakage; exceeds OEM standards |
| Fatigue Life | ≥10 million cycles (simulated 100,000km road load) | Tested per SAE J1686; retains ≥90% initial damping force after cycling |
| Certifications | Quality System | ISO/TS 16949:2016 | Certified by TÜV Rheinland; covers design, production, and testing processes |
| Corrosion Resistance | ASTM B117 salt spray test: ≥1,000 hours (no rust on critical components) | Painted with epoxy-polyurethane coating (50μm thickness); suitable for coastal/marine environments |
Product Uses
Here are specific application scenarios of Shock Absorber:
1. Daily Urban Commuting: Smooth & Quiet Rides
Ideal for city driving, this shock absorbs 20% more low-frequency road vibrations (tested per ISO 10816-3) than generic units—reducing cabin noise at 50km/h by 15dB. Its linear damping curve balances comfort and control, minimizing body sway during stop-and-go traffic. Trusted by aftermarket installers for upgrading daily drivers, ensuring end-users enjoy fatigue-free urban journeys.(Data: 20% vibration absorption, 15dB noise reduction; Standard: ISO 10816-3)
2. Rough Off-Road Conditions: Impact Resistance & Durability
Engineered for gravel, potholed, or uneven trails, it withstands 30% higher impact loads (1,500N peak force) than standard shocks. Survives 1 million cycles of 50mm stroke fatigue testing (SAE J1686), preventing leaks or performance drop even after traversing rocky terrain. A top choice for fleet operators in rural areas—cutting downtime from suspension damage.(Data: 30% higher impact load, 1M fatigue cycles; Standard: SAE J1686)
3. Light-to-Medium Duty Loads: Stable Body Control
Perfect for vehicles carrying cargo or towing small trailers, it maintains ≤2° body roll during cornering (vs. 3° generic) and reduces brake dive by 25%. Tested with 150kg additional load at 80km/h, ensuring cargo security and driver confidence. Widely adopted by delivery services and small businesses needing reliable suspension under variable weight.(Data: ≤2° body roll, 25% less brake dive; Load: 150kg additional)
4. Extreme Climate Zones: Consistent Performance Year-Round
Validated for -40℃ cold starts (full damping in 10s) and 85℃ high-heat endurance (500h without fade), it excels in deserts, tundras, or coastal regions. Salt-spray tested to ASTM B117 (≥1,000h), its corrosion-resistant seals prevent rust—even in humid, salty air. Essential for global distributors serving multi-climate markets.(Data: -40℃/85℃ operation, 1,000h salt spray; Standards: ASTM B117)
5. Performance Enthusiasts: Sharpened Handling
For drivers prioritizing precision, its monotube design enables 15% faster throttle/brake response (0.2s quicker than twins) and tighter turn-in stability. Paired with adjustable mounting tabs, it caters to mild suspension upgrades—delivering OE-level reliability with sportier feel. Popular among hobbyists modifying suspensions for tighter corners.
(Data: 15% faster response, 0.2s quicker; Feature: Adjustable mounting tabs)
Product Operate Guide
Pre-install: Verify part integrity; clean mounting surfaces to avoid debris.
Installation: Tighten bolts to 12-15Nm (ISO 5399 standard) to prevent loosening.
Post-install: Take a 5km test drive—avoid hard impacts for first 100km to let damping calibrate.
Maintenance: Check seals monthly for leaks; steer clear of extreme overloading.
