Die springs are compression springs, but differ from most in that they are a type of high force compression spring. Engineered to consistently give predetermined pressure at a given compression, die springs are well-suited for applications involving high loads or extreme conditions, like high temperatures. Die springs are often used in automotive applications or heavy machinery assemblies. They are a good choice for applications requiring high force within a limited area. If die springs are stronger than most compression springs, does that mean it is always better to specify them? Not necessarily. Some of the products and assemblies in which springs are used require lighter weight and less bulk, making the heavy duty construction of die springs less conducive. When it comes to both compression springs and die springs, choice of material, wire diameter, and other variables are determined by the spring’s ultimate use and the environment in which it will function.