Air-cooled booster-compressor with 1 stage and 2 or 3 cylinders. Many of the basic parts for example piston, cylinder and valves are used in our well known 40 bar compresors. This machine is designed for a minimum of maintenance. The main-usage for this booster is to blow PET-bottles in combination with a screw compressor. The results of a combination like this are competitive prices and max. profit.