Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
                                                                                                           
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20 Years
Since 2006
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Precision Manufacturing Steel Helical Compression Spring for Industrial Applications

Price Negotiable
Price: Negotiable
MOQ: Negotiable
Delivery Time: Negotiable
Brand: Sunzo
Product Description
Precision Manufacturing Engineered Helical Compression Springs
Manufacturing Excellence

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.

Advanced Coiling Technology
5-axis CNC spring coiling machines (Torsion Tech TT-3000) with ±0.01mm wire diameter tolerance and 0.1° helix angle precision
Automated Quality Control
Vision inspection systems performing 200+ dimensional checks per second, reducing human error to less than 0.001%
Enhanced Production Efficiency
35% higher production throughput compared to conventional manufacturing methods
Digital Engineering Process

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.

Material Science Innovation
  • Proprietary chrome-silicon alloy (ASTM A401) with 18% higher tensile strength than standard carbon steel
  • 316L stainless steel variants with electropolishing to achieve Ra 0.02μm surface finish for critical semiconductor applications
Heat Treatment & Quality Assurance

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.

Specialized Applications & Innovation

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.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
Location No.20, Xinghuo Road, Nanjing High-tech Development Zone
Contact Person wendy

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