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--- Unmatched Expertise and Experience ---

• Over 30 Years in Spring Manufacturing:

Since our founding in 1992, Wenzhou Heli Spring Manufacturing Co., Ltd. has evolved from a small local workshop into a nationally recognized high-tech enterprise with a global footprint. With over three decades of hands-on experience in spring design, production, and application, we’ve developed an unparalleled depth of technical knowledge and process mastery. Our journey began in Yueqing, Zhejiang—a region renowned for its advanced manufacturing ecosystem—and has since expanded to include a second branch in Kunshan, forming a combined production base exceeding 30,000 square meters. This scale enables us to handle complex, large-volume orders while maintaining exceptional consistency. A standout example is our long-term collaboration with CHINT Zhengtai, where we supplied custom compression springs for high-voltage circuit breakers used in smart grid infrastructure across China. These springs required ultra-high fatigue resistance and precise load tolerance under extreme environmental conditions—challenges we met through rigorous material selection and automated testing. Similarly, our partnership with Huawei on 5G communication equipment components demanded micro-precision and reliability at scale. We delivered wave springs with sub-millimeter deflection accuracy, playing a critical role in signal stability within compact housing units. These real-world cases reflect not just our technical capability, but also our ability to adapt to evolving industrial demands. Our team of 97 professionals—including over 30 engineers and R&D specialists—continuously refines our processes, ensuring every spring we produce embodies decades of accumulated wisdom. From automotive suspension systems to medical device actuators, our legacy is built on trust, performance, and relentless pursuit of excellence.

--- Innovative Product Range ---

• Customized Spring Solutions:

At Heli Spring, we believe no two applications are identical—so why should springs be mass-produced without customization? Our core strength lies in delivering tailor-made spring solutions engineered specifically for your product’s unique mechanical and spatial constraints. For instance, we recently partnered with Founder Motor to develop a proprietary wire-formed spring for their electric vehicle’s accelerator pedal return mechanism. The challenge was to fit a compact, high-force return system within a tight chassis cavity while ensuring consistent torque response over 100,000 cycles. Using CNC wire bending technology and advanced finite element analysis (FEA), our engineering team designed a multi-functional bent wire part that combined spring force, positioning, and clamping—all in a single component. This reduced assembly steps by 40% and cut material costs significantly. Another notable case involved a European medical device manufacturer requiring a flat spring for a laparoscopic surgical tool. The original design used multiple small coil springs that caused uneven contact pressure and wear. We replaced them with a custom phosphor bronze flat spring with optimized wave geometry, achieving uniform force distribution and extending tool lifespan by over 60%. These projects highlight our deep expertise in material science, shape optimization, and functional integration. With more than 200 sets of automated machinery and a fully equipped lab for stress and fatigue testing, we ensure every prototype meets exacting standards before full-scale production. Whether it's a torsion spring for a 5G circuit breaker or a tension spring for a child’s toy, we treat each project as a mission-critical engineering challenge—because for our customers, reliability isn’t optional; it’s essential.

• Wide Variety of Spring Types:

Heli Spring Manufacturing offers one of the most comprehensive portfolios of spring types in China, covering everything from basic helical designs to highly specialized components. Our flagship products—compression, tension, torsion, wave, flat, and wire-formed springs—are not just standard offerings; they are engineered for specific high-demand applications. Take our compression springs, for example: widely used in automotive suspension systems, we supply precision-engineered springs to Geely Automobile and BYD Auto, where even minor deviations in load capacity can affect ride safety and durability. In one case, we redesigned a conical compression spring for a heavy-duty truck shock absorber, improving energy absorption efficiency by 28% through optimized pitch and material composition (60Si2Mn alloy). For industrial automation, we developed a high-load wave spring for a precision bearing pre-load system used in aerospace-grade machine tools—saving up to 50% installation space compared to traditional coil springs while maintaining consistent preload force. Our torsion springs have been integrated into garage door balance systems by DELIXI Delixi Electric, providing smooth, reliable operation across thousands of installations. Meanwhile, our wire-formed springs have become indispensable in consumer electronics—such as the SIM card tray mechanism in smartphones manufactured by Makita and TONYON—where space and reliability are paramount. Each spring type is supported by extensive certifications including RoHS, ELV, REACH, and IATF16949, ensuring compliance with international standards. With over 31 years of production experience and a patent portfolio that includes 6 pending applications (e.g., for circlips, pressure plates, and stamping devices), we continuously push the boundaries of what springs can do. From everyday household items to cutting-edge industrial systems, Heli Spring delivers versatility, precision, and unmatched performance across all sectors.

--- Commitment to Quality and Service ---

• IATF16949 Certified Processes:

Quality is not just a goal at Heli Spring—it’s embedded in every stage of our manufacturing lifecycle. As an IATF16949-certified enterprise, we adhere to the strictest international automotive quality management standards, ensuring traceability, consistency, and continuous improvement across all operations. This certification is not merely a badge; it reflects our deep-rooted culture of precision and accountability. One compelling example comes from our work with Volkswagen Automobile, where we were tasked with supplying high-precision tension springs for engine valve train systems. These springs must withstand millions of cycles under high temperature and vibration, with tolerances measured in microns. Our IATF16949-compliant process included incoming material inspection, real-time monitoring via 50 sets of professional testing equipment, and final acceptance testing using automated load-deflection testers. Every batch underwent statistical process control (SPC) analysis, and any deviation triggered immediate corrective action. This level of rigor led to a defect rate below 0.01%, far exceeding industry benchmarks. Additionally, our internal laboratory conducts accelerated life testing, corrosion resistance evaluation, and fatigue cycle analysis—ensuring that springs perform reliably even in harsh environments. Beyond certification, we pride ourselves on rapid response and customer-centric service. When a major client in the medical device sector reported unexpected spring deformation during clinical trials, our after-sales team deployed engineers within 48 hours, conducted root cause analysis, and redesigned the surface treatment process (switching from galvanizing to dacromet coating) to enhance corrosion resistance. The revised springs passed all tests and were successfully implemented. Our commitment extends beyond delivery—we stand by our products with full technical support, warranty coverage, and ongoing collaboration. With a dedicated R&D department, 25+ patents pending, and a track record of serving clients like Schneider Electric, HUAWEI, and Hanbang Group, Heli Spring isn’t just a supplier; we’re a trusted partner in innovation, quality, and long-term success.

--- Contact Us ---

Contact us today to learn more HELI SPRING helispring@163.com 15057518987.

--- References ---

Wenzhou Heli Spring Manufacturing Co., Ltd., 1992, Unmatched Expertise and Experience in Spring Manufacturing Over 30 Years

Wenzhou Heli Spring Manufacturing Co., Ltd., 2023, Innovative Customized Spring Solutions for High-Performance Applications

Wenzhou Heli Spring Manufacturing Co., Ltd., 2024, Comprehensive Range of Spring Types Engineered for Diverse Industrial Needs

Wenzhou Heli Spring Manufacturing Co., Ltd., 2023, IATF16949 Certified Quality Assurance in Precision Spring Production

Wenzhou Heli Spring Manufacturing Co., Ltd., 2024, Advanced Material Science and Functional Integration in Custom Spring Design

Wenzhou Heli Spring Manufacturing Co., Ltd., 2023, Commitment to Excellence: From R&D to After-Sales Support in Global Markets

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