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Compression limiters preserve joint integrity

A Spirol Industries product story
Edited by the Engineeringtalk editorial team Jun 2, 2008

Spirol compression limiters are used to preserve a threaded joint's integrity when fastening plastic-to-plastic assemblies or plastic-to-metal assemblies.

Spirol Industries has released the CL500 and CL550 compression limiters for moulded-in applications.

The CL500 series has radial grooves along the length that offer maximum retention in the plastic.

The CL550 series is designed around standard industry accepted clearances for 6 and 8mm bolts and provides additional clearance around the bolts to accommodate greater positional tolerances.

Spirol compression limiters are used to preserve a threaded joint's integrity when fastening plastic-to-plastic assemblies or plastic-to-metal assemblies.

As a bolt is tightened to achieve the required friction between threads, the plastic is compressed.

Without the compression limiter, plastic will creep, resulting in the loosening and eventual failure of the joint.

The compression limiter absorbs the load generated when the bolt has been tightened to its recommended value.

The plastic is isolated from excessive compressive loads and plastic creep is not a factor in ensuring that the joint remains intact throughout the life of the product.

The new series are available in standard low carbon steel with a zinc plate finish for corrosion protection.

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