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Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Specifications
Place of Origin :
Sihong, China
Brand Name :
Sunzo
Certification :
CE/IATF16949/45001/14001/9001
MOQ :
Negotiable
Price :
Negotiable
Packaging Details :
Carton
Delivery Time :
Negotiable
Payment Terms :
Negotiable
Material :
Chrome-silicon alloy (ASTM A401)
Hardness :
45-50 HRC
Fatigue life :
1.2 million cycles
Cycle durability :
200,000+ engagement cycles
Wire diameter control :
±0.01mm
Operating temperature :
-40°C to 120°C
Load-deflection tolerance :
±2%
NVH reduction :
18%
Unsprung mass reduction :
28%
Coil pitch accuracy :
120 data points per second
Dynamic load testing :
10Hz for 10⁶ cycles
Salt spray exposure :
500 hours
Impact testing :
300G
Yield strength :
70%
Durability standard :
ISO 19403
Quality standard :
IATF 16949
Spring rate stability :
Maintained across temperature range
Redundant safety :
70% functionality after failure
Description
Compression Spring for Automotive Industry: Engineered Precision for Safety-Critical Vehicle Dynamics

In the automotive industry, compression springs serve as safety-critical components where performance variability directly impacts vehicle dynamics, passenger comfort, and crashworthiness. Our Automotive-Grade Helical Compression Springs are engineered to meet the stringent demands of modern vehicle architectures, delivering consistent elastic support across suspension systems, clutch assemblies, and brake mechanisms.

Engineering & Performance

Leveraging advanced CAD (SolidWorks 2024) and FEA (ANSYS Mechanical) simulations, our engineering team optimizes spring geometry to achieve precise load-deflection characteristics—typically maintaining ±2% tolerance on force output across the full compression range. This precision directly reduces NVH (Noise, Vibration, Harshness) levels by up to 18% compared to conventional springs.

Material Specifications & Applications
  • Suspension Systems: High-carbon steel (ASTM A228) springs undergo proprietary shot peening treatment, increasing fatigue life by 35% and enabling 1.2 million cycle durability under 70% of yield strength
  • Electric Vehicle Platforms: Lightweight titanium alloy springs reduce unsprung mass by 28% while meeting ISO 19403 durability standards for electric powertrain vibrations
  • Clutch Assemblies: Chrome-silicon alloy (ASTM A401) with 45-50 HRC hardness ensures consistent pedal feel and 200,000+ engagement cycles without performance degradation
Manufacturing Precision

Manufacturing precision is maintained through 5-axis CNC coiling machines (Torsion Tech TT-5000) with ±0.01mm wire diameter control and automated laser inspection systems that verify coil pitch accuracy at 120 data points per second. Heat treatment is performed in nitrogen-atmosphere furnaces with computer-controlled ramp rates, achieving uniform grain structure and eliminating residual stresses—critical for maintaining spring rate stability across -40°C to 120°C operating temperatures.

Quality Assurance & Testing
Test Type Specifications Standards
Dynamic Load Testing 10Hz for 10⁶ cycles Automotive Durability
Corrosion Resistance 500 hours salt spray exposure ASTM B117
Impact Testing 300G simulation Crash Scenario Validation

Our ISO/TS 16949 certified quality management system ensures full traceability from raw material lot (with 3.1 material certificates) to finished product, compliant with IATF 16949 automotive quality standards.

Innovation & Advanced Technologies
Adaptive Rate Spring™ Technology

For semi-active suspension systems, dynamically adjusts stiffness based on road conditions using variable pitch design.

Redundant Safety Springs

For autonomous vehicles, featuring dual-load paths that maintain 70% functionality even after partial fatigue failure.

Backed by a dedicated automotive R&D team with 25+ years of OEM collaboration experience, we provide application-specific solutions—from high-performance sports cars to heavy-duty commercial vehicles—delivering the precision and reliability that modern automotive engineering demands.

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Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm

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Product Detail
Place of Origin :
Sihong, China
Brand Name :
Sunzo
Certification :
CE/IATF16949/45001/14001/9001
MOQ :
Negotiable
Price :
Negotiable
Packaging Details :
Carton
Contact Supplier
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm
Automotive Helical Torsion Spring 1.2 Million Cycle ISO Compression Spring 20mm

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Verified Supplier
1 Years
nanjing
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Main Products :
DIN 2093 Disc Spring, Single Turn Wave Spring, DIN 6796 Washer
Total Annual :
1.2M-1.4M
Employee Number :
160~200
Certification Level :
Verified Supplier
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