Spirol Industries has introduced the new Series 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. Designed around standard industry accepted clearances for 6MM and 8MM bolts and the CL550 Series provide 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. They join Spirol’s existing Series CL200 and CL250 (split seam) and Series CL101 and CL111 (solid knurled) designs.
Spirol Industries Limited is a leading manufacturer of a diverse line of engineered fasteners, including coiled and slotted spring pins, solid pins, spacers and other tubular products, as well as threaded inserts, milled brass nuts, shims, pin and insert installation equipment and vibratory parts feeders.