SUNZO disc springs and compression springs exhibit fundamental differences in design, performance characteristics, and application suitability. Understanding these distinctions enables optimal spring selection for specific engineering requirements.
Disc Springs: Conical profile with optimized dish height-to-thickness ratios (0.4-1.2) and typical cone angles of 12°-18°. Achieve 30-70% axial space savings compared to compression springs of equivalent load capacity.
Compression Springs: Helical coils with variable pitch (0.5-2.0× wire diameter) and spring indices (5-15). Designed for longer stroke applications.
| Parameter | Disc Springs | Compression Springs |
|---|---|---|
| Stiffness Range | 5-50 N/mm (2-3× higher stiffness-to-volume ratio) | 1-20 N/mm |
| Load Capacity | 0.5-50 kN (via stacking) | 100 N-10 kN (single spring) |
| Deformation Characteristics | Non-linear load-deflection curves (adjustable via parallel/series stacking) | Linear behavior under elastic load |
Choose Disc Springs for: Space-constrained applications, high-stiffness requirements, variable-load scenarios, and axial preload applications where precision is critical.
Choose Compression Springs for: Longer stroke requirements (10-100 mm), cost-sensitive general applications, and situations requiring linear force-deflection characteristics.
Disc springs comply with ISO 16148/DIN 2092 standards, while compression springs adhere to ISO 10243, ensuring interchangeability and performance consistency across applications.