... 4) SIMENS PLC Controller 1, Product Name: Nitrogen Machine/ N2 Gas EquipmentA full installation requires air compressor, refrigeration ... and blowing, etc. Used in fields such as metal heating treatment, powder metallurgy, magnetic material, copper process, metallic ... Professional technologies ensure reliable gas supply. 11. Friendly human-machine interface. 5, Main Technical Parameters of ZR-3/30Nm ...