SUNZO High Stiffness Disc Spring vs Compression Spring for Space-Efficient Precision Machinery Applications
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 |
- Disc Springs: High-strength alloys (Inconel718, 50CrVA) for extreme environments. Ideal for hydraulic valve preload (350+ bar systems), aerospace landing gear, and precision CNC tooling.
- Compression Springs: Carbon steel or stainless steel (琴钢丝, SUS304). Suited for automotive suspension (10-50 mm stroke), household appliances, and general industrial shock absorption.
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.
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