Design

Our spring catalog contains compression and extension springs in a large variety of shapes and sizes, but our capabilities go well beyond those two most… Read MoreDoes HPC produce parts other than compression and extension springs? »

We work with the following raw materials and maintain inventory on many of them: high carbon spring wire, stainless steel (several alloys), chrome vanadium and… Read MoreHas HPC worked with a variety of raw materials? »

Yes, we work with customer provided sample(s) quite often.

While this may sound simple, it confuses a lot of people. Please refer to the blog post “Active vs. Total Coils: Are You Counting Correctly?”… Read MoreHow do you count coils in a compression spring? »

Our order entry process includes review of the part drawing for manufacturability, raw material, proper call-out for heat treatment (if any), testing, finish (if any),… Read MoreAre customer drawings reviewed for accuracy and verified through validated software or methods? »