This new range of high-pressure compressors is deployed for air and gas compression. The main fields of application are the plastics industry, natural gas fuelling stations and for the production of oxygen e.g. for fire brigades. The compressor series produces up to 420-bar compressed air and has an environmentally sound performance with minimal energy requirement and oil consumption. The product with its easy maintenance in long intervals of up to 2500 operating hours is convincing. In this way running costs can be significantly reduced for the operating company. The innovative concept is extended through ergonomic subassembly arrangement: All components e.g. filters, demisters and drive train are easily and quickly accessible using forward and lateral maintenance doors. Operating status information is clearly externally visible.