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China factories

China factory - Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

  • China,Nanjing
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China Custom Disc Spring High Load-density For Extreme Operating Environments In
China Custom Disc Spring High Load-density For Extreme Operating Environments In

  1. China Custom Disc Spring High Load-density For Extreme Operating Environments In
  2. China Custom Disc Spring High Load-density For Extreme Operating Environments In

Custom Disc Spring High Load-density For Extreme Operating Environments In

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Surface treatments Zinc phosphating, mechanical galvanizing, Dacromet, DLC, PTFE
Heat treatment Vacuum
Dynamic fatigue testing Electro-hydraulic servo
Non-metallic inclusions Controlled
Microstructural characteristics Exceptional
Yield-to-tensile ratio High
Corrosion resistance High
Mechanical stability High
Fatigue resistance High-frequency dynamic
Creep resistance Outstanding
Precision level High
Operating temperature High/low temperature adaptable
Machining technology CNC, composite stamping
Stiffness type Linear/nonlinear
Salt spray resistance High
Material purity Strictly controlled
Force range 50 N to 4000 N
Load density High
Yield strength 1923.9 MPa
Tensile strength 1926.5 MPa

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  1. Product Details
  2. Company Details

Product Specification

Surface treatments Zinc phosphating, mechanical galvanizing, Dacromet, DLC, PTFE Heat treatment Vacuum
Dynamic fatigue testing Electro-hydraulic servo Non-metallic inclusions Controlled
Microstructural characteristics Exceptional Yield-to-tensile ratio High
Corrosion resistance High Mechanical stability High
Fatigue resistance High-frequency dynamic Creep resistance Outstanding
Precision level High Operating temperature High/low temperature adaptable
Machining technology CNC, composite stamping Stiffness type Linear/nonlinear
Salt spray resistance High Material purity Strictly controlled
Force range 50 N to 4000 N Load density High
Yield strength 1923.9 MPa Tensile strength 1926.5 MPa
High Light Custom Disc Spring ，Nuclear Power Custom Disc Spring ，Custom Disc Spring High precision
Sunzo Custom Disc Spring Solutions
Sunzo's custom disc spring solutions with high load-density capabilities are designed for extreme operating environments in industries such as nuclear power, aviation, and new energy applications.
In today's sophisticated industrial landscape, conventional standardized elastic components often struggle to meet complex challenges such as space constraints, ultra-high loads, high-temperature corrosion, or high-frequency dynamic fatigue. Standardized products can no longer satisfy enterprises' deeper demands for efficiency, safety, and digital transformation.
As a leading technology-driven enterprise in China's elastic component sector, Jiangsu Sunzo Spring Technology Co., Ltd. (Sunzo Spring/SUNZO) consistently pioneers industry innovation. Leveraging robust R&D capabilities and comprehensive manufacturing expertise across the entire industrial chain, the company focuses on delivering high-end customized disc spring solutions tailored for precise application scenarios worldwide.
Sunzo Spring manufacturing facility and disc spring products
Core Approach: Scenario-Driven Custom Solutions
Digital Simulation and Precise Collaborative Design
Sunzo Spring has established a dedicated product research and development center in Nanjing, Jiangsu Province. Our technical team integrates client-provided boundary conditions (installation space constraints, pre-tensioning requirements, working stroke, ambient temperature, and medium environment) and employs advanced finite element analysis (FEA) software along with our self-developed spring design system for digital modeling.
By simulating the nonlinear mechanical characteristics and stress distribution of disc springs in single-unit or combined stacking configurations, we can accurately predict product service life and load curves prior to manufacturing, thereby eliminating design uncertainties.
Full Industrial Chain Customization Capability
From selecting high-quality raw materials to developing proprietary key process equipment and achieving precision manufacturing, Sunzo Spring has established a complete closed-loop industrial chain at its modern production base spanning 60 mu (approximately 4 hectares) in Sihong, Suqian, Jiangsu Province. The company delivers products swiftly without minimum order quantity (MOQ) restrictions.
Industry Applications and Scenarios
Jiangsu Sunzo's custom-made disc springs feature exceptional load-bearing density and versatile configuration capabilities, making them widely used in critical sectors vital to the national economy and advanced manufacturing.
Industry Application Scenarios Core Requirements Addressed
Nuclear power and  aviation Key valves for nuclear power plant reactors, aerospace actuation systems, buffer devices for  equipment Extreme safety requirements, long service life stability, complex dynamic fatigue challenges
Oil and Natural Gas (Underground Drilling) Underground shockers, measurement tools for real-time drilling (MWD), high-temperature and high-pressure valve seals Absorbs intense axial vibrations, maintains high load capacity under extreme high temperature and strong corrosion conditions
Ultra-high voltage power transmission Busbar connections for power transmission equipment; High-voltage circuit breaker mechanisms; Bolted electrical connection points Compensation for differential thermal expansion, prevents bolt creep and loosening, eliminates safety hazards from poor contact
Heavy Metal Processing and New Energy Technologies Main air valve of blast furnaces; locking systems for steelmaking rolling mills; yaw and braking systems for wind turbines; pre-tensioning mechanisms for hydrogen fuel cell stacks Provides sustained constant closing pressure or braking preload under high-frequency vibration, prolonged high temperatures, or extreme climate conditions
Petrochemical and Industrial Valves Ball valves, control valves, globe valves, pipeline flange gasket locking mechanisms Addresses valve seat leakage caused by chemical corrosion and thermal expansion/contraction, ensuring leak-free sealing performance
Key Technical Advantages
Industry Standards Participation
Jiangsu Sunzo is a key participant in developing national and international ISO standards for disc springs, ensuring alignment with global technical benchmarks.
Advanced Material Performance
Through joint development with specialized steel mills, our disc springs achieve tensile strength approaching 1926.5 MPa and yield strength of 1923.9 MPa with exceptional mechanical stability.
Comprehensive Surface Engineering
Offers zinc phosphating, mechanical galvanizing, Dacromet coating, DLC or PTFE anti-friction coatings for harsh operating conditions, with exceptional salt spray test performance.
Rigorous Quality Assurance
Holds IATF 16949, ISO 9001, ISO 14001, and ISO 45001 certifications with fully-equipped testing center ensuring every batch undergoes rigorous data validation.
Choose Sunzo - A Company with Stable and Resilient Future
Jiangsu Sunzo Spring Technology Co., Ltd., as a mixed-ownership enterprise in which China National Nuclear Corporation (CNNC) holds shares, integrates rigorous -grade quality management concepts with market-oriented agile response mechanisms. Whether your equipment is deployed deep beneath the sea, at great altitudes, or in modern digital workshops subjected to high-frequency vibrations, Sunzo Spring can deliver high-end customized disc spring solutions that offer superior cost-effectiveness and adaptability.
We welcome industrial enterprises and research institutions worldwide to contact us. We provide 24/7 technical consultation support, delivering professional expertise and meticulous craftsmanship to endow your critical core components with robust and stable performance.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • 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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Get in touch with us

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  • Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
  • No.20, Xinghuo Road, Nanjing High-tech Development Zone
  • https://www.spring-disc.com/

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