SPIROL Introduces New Precision Machined Compression Limiters to Protect Plastic Assemblies

SPIROL is pleased to introduce the new Series CL6000 lightweight, lead-free, Aluminum Precision Machined Compression Limiters. Compression Limiters are designed to reinforce high stress joints in plastic assemblies where bolts are used to connect two components to each other.

Home > Application Stories > Cosmetic Case

Cosmetic Case

Two Solid Pins were used as hinge pins in a styrene case.

The Solid Pins were causing squeaking in the styrene plastic case. The overriding weakness of the Solid Pins was that they relied on deformation of the plastic for retention, adding stress to the host material. It was necessary for the holes to be misaligned to retain the Solid Pins. Pressure caused by the misalignment, and Solid Pins bending, both contributed to squeaking.

A SPIROL® Series 550 Cosmetic Coiled Pin was selected as the appropriate solution to eliminate the squeaking. The plastic molding customer was willing to modify the existing hole size to achieve the proper friction fit. In addition, redesigning the hole allowed a standard Series 550 Cosmetic Coiled Pin to be used, further reducing cost.

It is unnecessary to misalign holes when using a Cosmetic Coiled Pin. Uniform radial spring force results in controlled hinge movement. The inherent design of the Series 550 Cosmetic Coiled Pin allows it to flex and absorb impact preventing premature damage to the hole wall. This feature means the quality of the hinge is maintained throughout the life of the product, and prevents the lid from flopping.

SPIROL Products in this Application Story

Coiled Pins for Cosmetic Cases

View Catalog Request A Quote

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.