ZU-Quatro series – ZU-115A5

• The environmentally friendly water lubrication compressor without using oil at all (ideal for ISO 14000).
• The water circulation saves the maintenance work.

MITSUI SEIKI KOGYO was founded in 1928 and is one of the most important Japanese manufacturers of air compressors. With extensive experience in manufacturing machining centers, MITSUI SEIKI has created its line of high performance industrial compressors to meet industrial needs. With its unique Z-Screw technology that increases compression performance while maintaining low noise and vibration; Z-screw is a unique, simple and efficient compression mechanism. The Z screw consists of 1 main screw and 2 gate rotors located on both sides. The rotors of entrance follow the rotation of the screw, and the film of water or oil (according to its case) and the floating mechanism maintain high efficiency for long time. This simple construction allows an efficient compression of low rotation with little noise, low vibration and Long service life of the bearing. Mitsui Seiki has been providing this mechanism since 1972.