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.

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.