Industrial Utility Efficiency

Gamma Vacuum Introduces New Sintered NEG Pump Series


Non-evaporable getter (NEG) pumps have a whole range of functional and ergonomic advantages for applications that require cost-effective and reliable ultra-high vacuum conditions. Unlike most vacuum pumps, NEG pumps are gas-capturing pumps that bind gases by means of sorption. This results in low energy consumption, little noise, and no vibration. NEG pumps have no moving components and are therefore maintenance-free.

Gamma Vacuum Sintered NEG.

With these attributes, they are predestined for a whole range of applications in research, medicine, industry and analytics. In these areas, they reach pressures of less than 1x10-10 mbar due to their operating principle. A critical requirement in such applications is the absence of dust particles as those badly influence the performance of the customers’ applications. Sintered NEG material is widely believed to strongly reduce emission of such particles into the application. Therefore, Gamma Vacuum developed its new NEG pumps that are based on sintered material. “The increased pumping performance of this NEG series with respect to our conventional NP series (NEG pumps based on pressed material) and their superior hydrogen capacity in comparison to the other NEG pumps available on the market are additional benefits,” said Dr. Stefan Lausberg, product manager for Gamma Vacuum.

The NEG series ranges from 50 l/s up to 400 l/s in pumping speed: 50NS, 100NS, 200NS, 300NS, 400NS, 410NS. All pumps are mounted on a DN 40 CF (2.75” CF) flange. The first five pumps have a 3-pin feedthrough which is a common style on the market. In order to fulfil customers’ requests, the 410MS is equipped with a special 4-pin feedthrough while it has the same pumping speed as the 400NS.

NEG vacuum pumps can be used in a broad spectrum of scientific and medical applications, like electron microscopes, research and medical accelerators or surface science. Due to their superior hydrogen pumping speed they are especially well-suited in the ultra-high vacuum range where hydrogen is the dominant gas species.
After the NEG pump has been heated up it does not consume any electricity until it is saturated. “This makes it an energy efficient, vibration-free and noiseless pump,” said product manager Dr. Stefan Lausberg. Another advantage, a NEG pump can be installed and operated in any orientation, even in confined spaces, and provides a practical way to maintain ultra-high vacuum pressures over a long period of time.

About Gamma Vacuum

Gamma Vacuum specializes in the design, manufacture and distribution of ion and titanium sublimation pumps, serving customers across a diverse range of scientific applications, including R&D and High Energy Physics. Our people are committed to be the foremost source in Ultra High Vacuum knowledge and expertise globally, delivering consistent superior quality, at a low initial and operational cost. Based in Shakopee, Minnesota, USA, Gamma Vacuum was established in 2003, and is an independent organization within the Atlas Copco Group. Currently with 40+ employees, supported by a solid distribution network, the company has a global reach spanning more than 180 countries. For more information, visit