These springs are intented in particular for very high loads and reduced assembly spaces, e.g. in press tools. Due to the permanently increasing operating frequency of press tools, high-performance springs are necessary. The use of high-quality alloyed steel guarantees maximum load and lifetime. Our range of springs for press tools contains 8 categories per diameter. This means that it is possible to use springs of various loads in the same tools according to the operating method. This also increases the durability of the tools.