CL101 & CL111 solid knurl

CL200 & CL250 split seam

CL500 molded-in

Compression Limiters

Compression Limiters protect plastic components of an assembly from the compressive loads generated by the tightening of bolts.  More about their function.

The SPIROL range of Compression Limiters includes the Series CL200 and CL250 split seam and Series CL101 and CL111 solid knurled designs.  For maximum retention, we offer Series CL500 molded-in Compression Limiters.

The split seam type is produced from carbon steel in heat-treated and non-heat-treated versions.  The solid knurled type is produced from brass and aluminum.  Since these Compression Limiters are designed to meet specified proof loads, the dimensional specifications are different.  The split seam design has a lead to facilitate insertion.  The solid design has a pilot, allowing it to stand freely in the hole prior to complete installation.

Split Seam Compression Limiter specifications.

Solid Knurled Compression Limiter specifications.

Molded-in Compression Limiter specifications.

Supplemental data for both types of Compression Limiters.

Other design considerations.

SPIROL standard split seam compression limiters can be installed with SPIROL pin inserters, pin driving chucks, or simply pressed in.

SPIROL standard solid compression limiters can be installed with conventional ultrasonic welders, SPIROL heat insert drivers, or simply pressed in.