The SNA 16, SNA 26 and SNA 36 are characterised by their versatility in the production of ring and wave springs. The machines form a series for rings with an outer diameter of 7 - 320 mm and wave springs with an outer diameter of 7 - 250 mm. Characteristic for the development of the series is the consistent focus on the requirements for the production of wave springs and single or double layer rings with or without step made of profile material (rectangular cross-section). The SNA series sets standards for maximum piece outputs with the highest quality criteria.