Volute Spring
What is a Volute Spring suspension :
A Volute Spring suspension is a Compression type Spring with a conical or tapered shape, typically made from spring steel Flats of varying thickness and width. These Springs are designed to absorb and dampen shocks and vibrations by compressing under load, making them ideal for suspension systems requiring high resistance to weight and impact. The unique design allows the Spring to collapse into itself, offering a compact and space-efficient solution with greater load capacity compared to Coil Springs.
● It’s look :
Visually, a Volute Spring suspension resembles a tightly wound cone or spiral, starting wide at the base and tapering toward the top. When compressed, the Volute Spring collapses into itself, maintaining a small footprint.
● It’s design :
The design of a Volute Spring suspension is based on the geometry of the spring, which features a tapered, helical structure. The spring steel Flats used in the Spring vary in thickness and width, with thicker and wider sections near the base for added strength and narrower sections toward the top for flexibility. The flat, spiral shape allows for efficient absorption of vertical forces and excellent shock resistance.
● Materials used :
The material used in Volute Spring suspension are made from high-strength, durable spring steel, which can withstand repeated compression and expansion without permanent deformation. The spring steel Flats used are cut in different thicknesses and widths depending on the application, ensuring that the Spring can support varying loads while providing flexibility where needed.
Due to their high load-bearing capacity and compact design, these Springs are often used in heavy-duty vehicles (like tanks) and industrial applications. The use of spring steel Flats offers increased resilience, especially in harsh conditions.
How Volute Spring suspension works :
A Volute Spring suspension, also known as a Conical or Spiral Spring, works by compressing and expanding through a coiled design. Its unique conical shape allows the coils to nest inside each other when compressed, offering a compact form factor. As force is applied, the Spring’s wide base tightens while its narrower top provides resistance. This design enables Volute Springs to handle heavy loads while minimizing space, making them ideal for applications requiring high force in compact areas. The gradual compression prevents over stressing, ensuring durability and consistent performance over time, especially in heavy-duty applications like shock absorption and machinery.
Volute Spring suspension uses :
Volute Spring suspension is used for heavy-load applications due to their high strength and compact design. They provide excellent shock absorption, protecting mechanical components from sudden impacts or vibrations. Their ability to compress flat ensures they take up minimal space when not in use, making them ideal for confined spaces.
● Where it’s used :
Volute Spring suspension are used commonly in heavy machinery, automotive suspensions, industrial equipment, mining equipment, construction machinery and military hardware to absorb shocks and maintain system stability.
● How it’s fits :
Volute Spring suspension are fitted / mounted by aligning their conical shape with the surrounding components, ensuring proper load distribution.
Volute Spring suspension types :
There are generally 2 types of Volute Spring suspension are used, find their details below :
● Single / Vertical Volute Spring :
A Single Volute Spring suspension called also as Vertical Volute Spring has a spiral or cone-like shape, with coils winding outward from a central point to form a single continuous helix. The coils are progressively more significant from the top to the base.
How it works : The Volute Spring compresses when a load is applied, with each coil nesting inside the next, minimizing height. It absorbs and distributes the force efficiently, providing strong resistance as it returns to its original shape upon release.
● Double Volute Spring :
A Double Volute Spring suspension consists of two interlocking volute spirals, creating a more robust and more compact design than a single Volute Springs.
How it works : The two spirals compress together under load, offering increased strength and load-bearing capacity. The interlocking design allows for smoother compression and greater resistance to deformation, making it ideal for heavy-duty applications where space is limited but high force absorption is required.
Volute Spring suspension manufacturing process :
Here is the step by step manufacturing process of Volute Spring suspension :
● Material selection :
The process begins by selecting high-strength steel or alloy wire, known for its durability and elasticity, suitable for high-stress applications.
● Flat section cutting :
The material is cut to the required length based on the spring’s dimensions and load specifications.
● Hot coiling process :
The wire is wound into a conical or spiral shape using a spring hot coiling machine. This forms the basic volute structure, ensuring that each coil fits neatly inside the next when compressed.
● Heat treatment :
The coiled spring is heated treated in a furnace to a specific temperature and then cooled. This process improves the spring’s hardness, durability, and elasticity, enhancing its load-bearing capacity.
● Grinding and finishing :
The ends of the Spring may be ground flat for better stability. So it’s required for Grinding it’s surface to remove excess material or imperfections are removed to ensure smooth compression and expansion during operation.
● Surface coating :
The Spring undergoes surface coating treatments such as color coating, plating or painting to improve corrosion resistance and protect it from rust.
● Quality inspection :
The finished Volute Spring is tested for load capacity, dimensional accuracy, and performance. Each spring must meet stringent quality standards to ensure proper functionality.
● Packaging :
After passing inspection, the springs are packaged for distribution to various industries, ready for use in machinery and equipment.
Volute Spring suspension manufacturer :
We are Volute Spring suspension manufacturer in India upto most heavy section. Our manufacturing capacity is described below :
Flat Thickness – Up to 20 mm.
Flat Width – Up to 250 mm.
Bottom Outer Dia. – Up to 400 mm.
Free Height – Up to 700 mm.
● Raw-material Grades used :
Spring Steels as per Indian standard –BS:970 EN-45, BS:970 EN-47, 50Cr.V4, 50Cr.4V2, 51Cr.V4, 50Cr.MoV4, 50Si7, 55Si7, 60Si7, SUP-9, SUP-9A, SAE-5160 etc. and others similar Foreign Grades JIS, ASTM etc.
● Painting and Coating used :
Synthetic Enamel Paint, Powder Coating, Phosphate, Zinc Coating etc.