Technical Guide to Coil Spring Manufacturing

Coil Spring Manufacturing Process Whether you have an exist­ing spring application in need of re-engineering or a new one that requires designing this guide will help. The engineering team and Duer Carolina Coil has been manufacturing springs for well over 100 years and has refined the coil spring manufacturing process for the industry – for

What is the Difference between Torsion & Extension Springs?

The most common type of helical coil spring is a compression spring.  In a compression spring, increasing load reduces the height of the spring.  The spring releases this absorbed energy as it returns to its free length. There are two other types of important helical coil spring types that help in other mechanical situations.  These

Types of Coil Spring Ends

When it comes to buying coil springs, whether for automotive suspensions, or a more industrial application, not all coils are the same. Aside from how coil springs are made (hot or cold wound) the other important factor to consider is what type of end your coil will have. There are four main types of coil ends:

How Coil Springs Are Made

Springs come in a wide variety of sizes and configurations depending on their desired use.  Some of the types of springs include leaf springs, Belleville washer springs, clock springs, constant force springs, and helical coil springs.  Duer/Carolina Coil specializes in manufacturing helical coil springs from high-quality U.S. steels. The most common types of coil springs

Not All Automotive Springs are the Same

Duer/Carolina Coil has over 120 years experience making coil springs for industrial, agricultural, valve and suspension applications. Over the last 20 years, Duer/Carolina Coil has made heavy duty coil springs for a variety of military vehicles. Duer/Carolina Coil’s coil springs have been on HUMVEEs, MTVRs, MRAPs and a variety of emergency transport vehicles. We are