KAESER’s booster reciprocating compressors are engineered to deliver high-pressure performance for demanding applications such as PET bottle production and industrial process air. The range includes the flexible N Series, powerful High-Pressure Boosters, and the complete SIGMA PET AIR systems that integrate screw compressors, boosters, and air treatment components into a turnkey package. With discharge pressures up to 45 bar and flow rates up to 2772 m³/h, these systems offer efficient, compact, and reliable solutions where elevated compressed air pressures are essential.