Gamma Vacuum, part of the Atlas Copco Group, recently introduced new nonevaporable getter (NEG) pumps.
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 three-pin feedthrough, which is a common style on the market. The 410MS is equipped with a special four-pin feedthrough and the same pumping speed as the 400NS.
The vacuum pumps are based on sintered material, which is widely believed to reduce the emission of dust particles into the application. The 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 hydrogen pumping speed, they are especially well-suited in the ultra-high vacuum range where hydrogen is the dominant gas species.
NEG pumps have a 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. 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 1×10-10 mbar due to their operating principle. A critical requirement in such applications is the absence of dust particles.