Hendrickson introduces Progressive Load Spring technology

US suspension specialist Hendrickson has introduced an update of its Haulmaax vocational rear suspension system.

The new Progressive Load Spring (PLS) is an elastomeric spring that works in concert with the bolster springs in Hendrickson’s patented Vari-Rate Spring system and was designed to provide “unparalleled ride quality” in both loaded and unloaded conditions.

“The new Progressive Load Spring will improve the already rugged and reliable HAULMAAX rear suspension system by providing key advancements in ride quality and stability,” Hendrickson said.

“As payload increases, the [continuously engaged] spring further engages and functions together with the rubber bolster springs to provide additional stability. The PLS’s constant engagement also eliminates the need for shim adjustments for most applications, resulting in reduced maintenance and lowered cost.”

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