DIN2093 Disc Springs & Belleville Washers | Sunzo Spring Technology Solution Provider

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd.

Established in 2006 with participation from China National Nuclear Corporation, Sunzo is a mixed-ownership enterprise specializing in the research, development, production, and sales of high-performance elastic components.

Our R&D center is located in Nanjing, Jiangsu, and our advanced manufacturing base is in Sihong, Jiangsu. We serve critical industries including nuclear power, aerospace, hydrogen energy, ultra-high voltage transmission, wind power, automotive, and petrochemicals.

18+

Years Experience

50+

Global Clients

Product Portfolio

Engineered for Performance, Precision, and Reliability

DIN2093 Disc Spring

Manufactured to DIN EN 16983 standard. Ideal for critical loading and dynamic applications requiring high fatigue resistance.

DIN6796 Disc Washer

Conical spring washers designed for bolted joint preload maintenance under vibration and thermal cycling.

Valve Disc Spring

High-reliability springs for valve systems in power, petrochemical, and industrial applications.

Double Slotted Disc Spring

Enhanced load distribution and reduced stress concentration for high-cycle fatigue environments.

Ultra-High Torque Disc Spring

Designed for extreme torque applications in heavy machinery and power transmission systems.

High Torque Disc Spring

Optimized for high preload and torque retention in demanding mechanical assemblies.

Preload Bearing Disc Spring

Ensures consistent bearing preload in rotating equipment, improving lifespan and performance.

DIN9250 Serrated Safety Washer

Anti-loosening washer with serrated face for secure fastening in vibration-prone environments.

Single Turn Wave Spring

Compact axial spring solution for space-constrained applications requiring moderate load and deflection.

Multiple Wave Spring

Higher load capacity and longer life than single turn variants. Ideal for sealing and preload systems.

Mould Spring

High-force, fatigue-resistant springs for injection molding and die-casting equipment.

Compression Spring

Precision wound springs for general industrial use with high consistency and durability.

Technical Services

Advanced Engineering Support for Custom Solutions

Material Development

Custom alloy formulation and heat treatment processes for extreme environments.

Product Design

Elastic component design using industry standards and proprietary software.

Simulation Technology

FEA and dynamic simulation for performance prediction and optimization.

Testing Services

Comprehensive testing per international standards with full traceability.

Industry Applications

Trusted in Mission-Critical Environments

Nuclear Power Industry

Seismic restraints, valve actuators, and reactor control mechanisms.

Wind Power Industry

Pitch and yaw systems, gearbox preload, and tower damping.

Hydrogen Energy Industry

High-pressure sealing, compressor systems, and fuel cell stacks.

Ultra-High Voltage (UHV)

Switchgear mechanisms and contact force maintenance.

Rail Transportation

Coupling systems, suspension, and braking mechanisms.

Automotive & Motors

Clutch systems, engine valves, and transmission components.

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Precision Disc & Wave Springs