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Volute Springs – High-Capacity Conical Compression
About the Product
Volute springs are a specialized type of **compression spring** formed from flat bar stock, wound into a conical shape so that one coil nests inside the other. This unique design provides several major advantages: a high load capacity in a compact space and the ability to dampen vibration and absorb shock efficiently. They are self-damping due to inter-coil friction during compression, making them ideal for heavy-duty, high-impact applications where stability is critical.
- Conical form allows telescoping for low solid height.
- Made from flat bar stock, resulting in high load capacity.
- Self-damping characteristics due to friction between coils.
- Suitable for applications involving side thrust and shock loading.
Our volute springs are engineered for environments where standard helical springs fail due to space constraints or excessive shock. The nested coil design ensures the spring only compresses to the thickness of its material, offering an incredibly small solid height compared to its free length. This feature is critical in heavy engineering, especially within railway and mining equipment.
Technical Specifications
Characteristics: Tapered (conical) shape, made from flat rectangular bar material, high self-damping properties.
Measurements: Minimum and Maximum Diameters are defined by the taper. Material Thickness: 3 mm – 20 mm.
Configurations: Single or double volutes (two springs nested together) for increased load and stability.
Key Parameters: Load at full compression, solid height, material cross-section dimensions, deflection.
Rate or Stiffness: Often progressive, increasing stiffness as coils begin to bottom out.
Unit of Measure: mm, N, load/deflection curve.
Service Life: High durability for heavy impact applications.
Tolerances: Custom tolerances based on critical application requirements, often tighter on load capacity.
Applications: Railroad buffers and couplings, mining machinery, heavy engineering dampeners, agricultural equipment.
Ready to discuss your custom spring requirements? Contact us now