Phillips Qwik Tech Tips newsletter

How-to: Identify quality air coils

A quality air coil will exhibit good “strength, durability, flexibility, memory recoil and performance in hot and cold temperatures,” say the writers behind parts manufacturer Phillips Industries’ Qwik Tech Tips monthly newsletter. A chief consideration is the material the air line is made of. The company says a shortage of castor beans in 2002-03, the chief component in natural Nylon 11 (Polyamide 11), led to more prominence in air coils made of synthetic Nylon 12 (Polyamide ...

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