Jiangsu Sunzo Disk Spring: High-end customized elastic solutions designed for low-load applications

Jiangsu Sunzo Disk Spring: High-end customized elastic solutions designed for low-load applications

Jiangsu Sunzo Spring Elastic Technology Co., Ltd. boasts profound technical expertise and professional R&D capabilities in the field of disc springs. Its R&D center is located in Nanjing, Jiangsu Province, while its production base is situated in Sihong, Jiangsu. The company employs a seasoned product development team composed primarily of professionals in mechanical engineering and materials science with extensive industry experience. It also operates a modern testing facility equipped with advanced instruments such as high-precision spring testing machines and fatigue testing systems. The company has actively contributed to the formulation of international ISO standards and national regulations for disc springs, demonstrating its leading position in the industry. In low-load applications where precision and reliability are critical, Jiangsu Sunzo's disc springs have gained widespread recognition for their stable elastic performance and precise calibration. Unlike traditional helical springs, these discs offer micro-adjustable stiffness (0.1–10 N/mm) and consistent axial pre-tensioning force, making them ideal for applications requiring low loads (0.5–50 N) and controllable deformation. Their unique conical geometry reduces axial space requirements by 30% compared to conventional springs—a significant advantage for compact device designs.

Sunzo disc springs exhibit diverse nonlinear load-deformation characteristics, allowing flexible customization of elastic performance through various configuration methods such as parallel, series, or nested stacking. For instance, in micro-pre-tensioning applications for sensor components (e.g., 0.5 N axial force), parallel stacking reduces stiffness, while series configuration ensures stability under dynamic low-load conditions. The company employs specialized materials including 65Mn (high-carbon spring steel with an elastic recovery rate>95%, ensuring sustained performance after repeated use) and SUS304 (corrosion-resistant stainless steel suitable for humid/electronic environments). Each spring undergoes professional surface treatments such as phosphating (8–12 μm thickness to enhance wear resistance and extend service life) or Dacromet coating (compliant with ASTM B117 standards, with over 1,000-hour salt spray resistance and excellent corrosion resistance for harsh environments). Additionally, Jiangsu Sunzo offers robust customization capabilities, providing tailored services including custom slots, modular assemblies, and special materials (e.g., high-temperature resistant or corrosion-resistant options) to meet diverse application requirements.

Jiangsu Sunzo's disc springs undergo rigorous testing in strict compliance with the ISO 16148 standard to ensure consistent performance and reliability. With a fatigue life exceeding 10⁵ cycles at 80% yield strength, their dimensional tolerances are controlled within ±0.02 mm. These springs are widely used in micro-adjustment mechanisms for CNC machines, pre-tensioning systems for miniature hydraulic valves, and electronic component connectors (such as PCB socket contacts), achieving seamless integration with equipment while demonstrating exceptional durability and precision. The company maintains a comprehensive quality control system: suppliers are rigorously screened during raw material procurement, multiple inspection steps are implemented throughout production to promptly identify and resolve issues, and every phase—from material performance evaluation to dimensional and functional testing—including load testing (simulating real-world conditions), fatigue testing (assessing lifespan under repeated cycles), and salt spray testing—is strictly monitored to guarantee stable product quality. Choosing Jiangsu Sunzo's disc springs means opting for precise and reliable elastic solutions tailored for low-load applications.