Engine Valve
Spring
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| Application | Used in 2 & 4 wheeler |
| Materials | IS 4454 PART II Grade VW, IS 4454 PART III Grade 1D, 2D |
| Sizes | Wire Diameter: 0.20mm - 8.60mm Outer Diameter: 3.00 mm - 150 mm Free length: As per Requirement |
| End Configuration | Open & Un Ground, Open & Ground, Closed & Ground, Closed & Un Ground, Pig Tail Ends |
| Surface Finish | Oiling, Plating, ED Coating. |
Valve Springs Engineered for High-Speed Engine Cycling
A valve spring sits around the valve stem in the cylinder head and does one job, over and over, for the life of the engine, closing the valve after the cam has opened it. Every open-close cycle compresses and releases the spring, and at engine speed that happens thousands of times a minute.
Accurate Springs Pvt Ltd manufactures valve springs on CNC coiling machines, working from customer drawings and load specifications to produce the exact spring rate and geometry each engine calls for. We've built a name as trusted compression spring manufacturers through a manufacturing process that holds tight tolerances on load and fatigue life, letting us handle both standard and high-performance valve springs on the same line.
Key Features
- Controlled spring rate and consistent load, part to part
- Fatigue-resistant design for continuous high-speed cycling
- Dimensional stability under repeated compression
- CNC-coiled for accurate, repeatable coil geometry
- Shot peening for improved surface fatigue resistance
- Made from spring steel, oil-tempered wire, and other application-grade materials
Applications
- Automotive engines
- Commercial vehicle engines
- Agricultural engines
- Industrial engines
- Other systems where a valve mechanism relies on precise, repeated spring action
Cycle after cycle, at engine speed, these springs are built to hold their load and close the valve cleanly, no matter how many hours are on the clock.
Benefits
- Load performance verified on calibrated test equipment
- In-house endurance testing before anything ships
- Engineered for the specific engine and duty cycle, not a generic design
- Reduced risk of load drift or premature failure
- Backed by IATF 16949:2016, VDA 6.3, and 100 PPM quality discipline
Team up with established spring manufacturers in India who understand engine duty cycles, and you get valve springs built for real-world reliability, not just a spec sheet.
Frequently Asked Questions
Where does a valve spring sit in the engine?
Around the valve stem, in the cylinder head, working with the camshaft, rocker arm, and spring retainer.
How does it work?
The cam mechanism pushes the spring to open the valve. When that force releases, the spring pushes the valve back shut.
What materials do you use?
Spring steel and oil tempered wire, other grades available depending on the application.
Do you test for fatigue life before shipping?
Yes, our endurance testing station tests cyclic durability under conditions fitted to the real application.
Can you build valve springs to our specification?
Yes. As one of the established valve spring manufacturers serving the automotive sector, we develop valve springs from customer drawings, load data and the specific duty cycle involved.