Jiangsu Sunzo Disc Spring: High Stiffness Shock Absorption Solution for Hydraulic Systems | Suqian Spring Manufacturer

SUNZO Disc Spring produced by Jiangsu Sunzo Spring Technology Co., Ltd. is a high-performance elastic component with excellent stiffness characteristics and buffer shock absorption capabilities. Established in 2010 as a professional disc spring manufacturer, the company is located at No.8 Ningbo Road, Machinery Industrial Park, Sihong County, Suqian City, Jiangsu Province, focusing on providing load solutions with optimized axial space for industrial fields. The product achieves micro-deformation characteristics under heavy load conditions through precise structural design, making it particularly suitable for application scenarios with strict installation space restrictions such as hydraulic systems.

SUNZO disc springs adopt variable stiffness design and wide nonlinear characteristics, which can achieve customized performance parameters through various combination methods such as stacking and pairing. The company has patented technology for "a special-purpose disc spring" (patent application number CN201810014456.1). The disc spring structure with supporting surface developed by the company can maintain the same load as traditional products under 75% displacement conditions, while achieving material weight reduction and compression increase. This modular design can meet the personalized needs of engineering machinery, rail transit, new energy and other fields.

In hydraulic energy storage systems, SUNZO disc springs serve as core energy storage components, establishing stable oil pressure through synergistic effect with hydraulic oil medium. The company's newly developed high-strength composite disc spring assembly (patent number CN223781943U) introduces a friction-reducing ring structure, effectively reducing friction loss and improving elastic stability. The product has passed ISO9001 quality management system certification and can still maintain reliable operation under harsh working conditions such as marine climate and low-temperature environment.

Jiangsu Sunzo provides a full range of disc spring products from standard series to customized development, including German standard disc springs, high-temperature spring sheets, 304 stainless steel disc springs and other categories. The company uses high-performance stainless steel materials instead of traditional spring steel, and controls carbide precipitation by optimizing solution temperature and aging process, enabling the product to pass 5% NaCl neutral salt spray 168-hour durability test. Its independently developed end face grinding device (patent number CN222511623U) realizes fast and accurate clamping of disc springs with different diameters, with processing accuracy up to 0.02mm level.

As the core enterprise of Jiangsu Sunzo Elastic Technology Group, the company has a registered capital of 10 million yuan, 76 patented technologies and a complete production system. In the rail transit field, its disc spring products have been successfully matched with KnorrBremse high-speed rail braking systems, passed EU TSI certification, and provided localized alternative solutions for CRRC urban rail vehicles. The product's fatigue life exceeds 1 million times, and the height attenuation is ≤0.02mm, meeting the requirements of high-speed rail braking systems for high-temperature creep conditions above 700℃.

The company's disc spring structure types are divided into two major series: non-supported surface and supported surface according to thickness. Through thinning design, the lever arm is shortened to achieve load compensation under the same torque condition. The support surface size is approximately 1/150*D of the outer diameter, and the thinning ratios of series A, B, and C reach 0.94, 0.94, and 0.96 respectively. This structural innovation significantly improves the stacking stability when used in combination, making it particularly suitable for multi-disc spring group application scenarios in hydraulic systems.

In terms of technological innovation, Jiangsu Sunzo obtained the patent "A High-Temperature Disc Spring and Its Thermoforming Process" (authorization announcement number CN119387379B) in 2025, which solved the performance attenuation problem of traditional disc springs in high-temperature environments through material composition optimization and heat treatment process innovation. The disc spring sorting prompt device developed in the same year (publication number CN121589064A) realizes precise control of the number of disc springs in the storage box, improving production flow efficiency.

Product applications cover hydraulic machinery, rail transit, new energy equipment, petrochemical and other fields. In hydraulic systems, SUNZO disc springs are mainly used in accumulators, safety valves, clutches and other key components, realizing precise control of pressure fluctuations through their nonlinear characteristics. The company can provide customers with full-process services from demand analysis, structural design, simulation verification to production delivery, with a minimum order quantity as low as 100 pieces, and the delivery cycle of conventional products is controlled within 7-15 working days.

Jiangsu Sunzo Spring Technology Co., Ltd. has always adhered to the concept of "technology escorting industrial safety" and promoted the development of the elastic component industry through continuous R&D investment. The company has a professional technical team that can conduct finite element analysis and life prediction based on the working condition parameters provided by customers, and custom-develop disc spring solutions in special environments. As a national high-tech enterprise, the company actively participates in the formulation of industry standards and promotes the localized application of disc springs in high-end equipment manufacturing.

For more product technical parameters or customized solutions, please contact Jiangsu Sunzo Spring Technology Co., Ltd. Company address: No. 8 Industrial Road, Caomiao Town, Sihong County, Suqian City, Jiangsu Province. Contact phone: 0527-8666****. Email: info@sunzospring.com. We will provide you with professional technical support and perfect after-sales service to jointly promote the performance improvement and safety guarantee of industrial equipment.