The CT-NG is Celeroton’s new turbocompressor series for noble and inert gas applications. Equipped with gas bearings, the first variant of the turbo compressor series, the CT-NG-2000 is available for 100% oil-free compression of helium.Besides single-stage operation, the CT-NG-2000 allows for the connection of multiple units in series and/or parallel configurations in order to increase the pressure ratio and/or mass flow depending on the application. Master/slave control of these configurations is achieved by bus communications.The modular CT-NG platform covers different gases, such as argon, neon, nitrogen and gas mixtures (e.g. with a noble gas as a carrier gas), by making appropriate aerodynamics and gas bearing adaptions. The sealing concept of the compressor minimizes contact of the process gas with (so called wetted) materials within the compressor and therefore works fully without the need for rotating sealings. This allows the compressor to be operated in hydrogen, pure oxygen or reactive and aggressive gases. It guarantees a high level of tightness and low leakage rates.Application areas for the CT-NG-series are broad and they all have the common need for contamination-free gas supply. The CT-NG high-speed turbo compressors can be applied in the semiconductor industry, process gas applications, rapid prototyping and for cryogenic applications. To date, these applications have been served using very large, heavy and energy-consuming displacement compressors (piston, screw or other). No oil separators are needed either.