The Benefits of 420 Chrome Stainless Steel Coiled Spring Pins

In applications requiring a combination of high strength, superior fatigue life, and corrosion resistance, 420 martensitic chrome stainless steel offers a host of technical benefits and provides an overall robust cost-effective solution.

Intake Manifold

Over the past few years, plastic Intake Manifolds have gradually started to replace cast aluminum. Due to the fact that the plastic intake must be bolted / fastened to the engine, the use of a Compression Limiter is required to prevent the plastic manifold from cracking during assembly.

One customer originally designed a 6mm x 65mm brass bushing to be used in this specific application. There were no potential issues with the design of the brass bushing. However, the customer was familiar with SPIROL's roll-formed steel Compression Limiters and, with the intent of reducing production costs, decided to pursue this alternative. SPIROL had reviewed several different manifold applications and did recommend a steel roll-formed Compression Limiter as the lowest installed cost component.
app compression limiter intake manifold
app compression limiter intake manifold close up
app compression limiter cl200

CL200 Compression Limiters

Upon review, SPIROL Engineering recommended a standard split seam M6 x 65 CL200 Compression Limiter for this application. The customer was required to change their core pin to accommodate the recommended hole size for the roll-formed Compression Limiter.

The customer did provide pricing for the brass bushing, which was $0.225 / $0.30 per piece. SPIROL's standard split seam Compression Limiter was quoted at $0.15 per piece. The difference in pricing saved this particular customer $35,000.00 in their first year of production.

Our staff of engineers will review your application needs and work with your design team to recommend the best solution.

Need help finding the right solution?

SPIROL offers complimentary Application Engineering support. We will assist on new designs as well as help resolve issues, and recommend cost savings on existing designs.