Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
| Material | Steel |
| Load Type | Compression |
| Production Process | Hot Roll |
| Shape | Flat |
| Wire Diameter Tolerance | ±0.01mm |
| Helix Angle Precision | 0.1° |
| Load Tolerance | ±1.5% |
| Tensile Strength | 18% higher than standard carbon steel |
| Surface Finish | Ra 0.02μm |
| Hardness Level | 42-45 HRC |
| Fatigue Testing Cycles | 10⁷ cycles |
| Yield Strength | 70% |
| Temperature Range | -40°C to 200°C |
| Material Standard | ASTM A401 |
| Stainless Steel Variant | 316L |
| Alloy Type | Chrome-silicon |
| Inspection Speed | 200+ checks per second |
| Production Throughput | 35% higher |
| Error Rate | 0.001% |
| Cpk Values | 1.67 |
| Packaging Details | Carton |
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Place of Origin | Sihong, China |
| Brand Name | Sunzo |
| Certification | CE/IATF16949/45001/14001/9001 |
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Product Specification
| Material | Steel | Load Type | Compression |
| Production Process | Hot Roll | Shape | Flat |
| Wire Diameter Tolerance | ±0.01mm | Helix Angle Precision | 0.1° |
| Load Tolerance | ±1.5% | Tensile Strength | 18% higher than standard carbon steel |
| Surface Finish | Ra 0.02μm | Hardness Level | 42-45 HRC |
| Fatigue Testing Cycles | 10⁷ cycles | Yield Strength | 70% |
| Temperature Range | -40°C to 200°C | Material Standard | ASTM A401 |
| Stainless Steel Variant | 316L | Alloy Type | Chrome-silicon |
| Inspection Speed | 200+ checks per second | Production Throughput | 35% higher |
| Error Rate | 0.001% | Cpk Values | 1.67 |
| Packaging Details | Carton | Delivery Time | Negotiable |
| Payment Terms | Negotiable | Place of Origin | Sihong, China |
| Brand Name | Sunzo | Certification | CE/IATF16949/45001/14001/9001 |
| High Light | helical compression spring 20mm ，industrial compression spring 20mm ，industrial helical compression spring | ||
Our helical compression springs deliver uncompromising performance consistency in high-volume manufacturing environments, where dimensional stability directly impacts production yields and end-product reliability. We integrate state-of-the-art precision manufacturing technologies to ensure unrivaled performance uniformity across production runs exceeding 100,000 units.
Our production process is governed by a digital thread architecture where CAD designs (SolidWorks 2024) are directly translated into machine code, and FEA simulations (ANSYS Mechanical) validate stress distribution before physical production. This approach ensures optimal load-deflection characteristics with load tolerance maintained within ±1.5% across entire production lots.
Heat treatment is executed in computer-controlled furnaces with nitrogen atmosphere protection, achieving precise hardness levels (42-45 HRC for high-carbon steel) and uniform grain structure.
| Testing Phase | Specifications |
|---|---|
| Load Testing | 25%, 50%, and 100% of rated capacity |
| Fatigue Testing | 10⁷ cycles at 70% of yield strength |
| Environmental Conditioning | -40°C to 200°C thermal cycling |
Our ISO 9001:2015 certified quality management system includes full material traceability and advanced statistical process control (SPC) with Cpk values consistently exceeding 1.67 for critical dimensions.
For specialized applications, our rapid prototyping lab offers 3-day turnaround for custom designs, utilizing additive manufacturing for complex geometries before transitioning to high-volume production.
Recent innovations include our Smart Spring™ technology, which embeds micro sensors for real-time performance monitoring in aerospace applications.
Backed by a team of 12 materials engineers and ISO 17025 accredited testing facilities, we deliver compression springs that set industry benchmarks for precision, consistency, and reliability—even in the most demanding manufacturing environments.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2006
Total Annual:
1.2M-1.4M
Employee Number:
160~200
Ecer Certification：
Verified Supplier
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