Turbomolecular vacuum pump cryopumps    diffusion pumps    getter ion pumps         Europe, Middle East and Africa    North and South America    Asia Pacific Busch Semiconductor Vacuum Group Inc. - 18430 Sutter Blvd., Morgan Hill, CA 95037, USA products: Turbomolecular Pumps: 50 - 3300 L/s, 10-8 Pa completely dry compression, maintenance-free, magnetic levitation bearing, range of product variants company profile: Since the foundation of Busch in 1963 by the present owners, Dr. Karl Busch and his wife, Ayhan Busch, company policy has been customer orientated thinking, supply of high quality and competitively priced products and excellent technical and service back up. By the year 2001, Busch has grown to 1600 employees and contributes to the worldwide success of its customers with 37 companies in 27 countries. EBARA Technologies, Inc. - 51 Main Avenue, Sacramento, CA 95838, USA products: EBARA Turbo Molecular Pumps, ET Series, offers full magnetic levitation, while providing clean, reliable vacuum for today's high technology environments. The ET Series features a five axis active magnetic bearing system and tuning free half rack controllers. Models range from 300 - 3300 I/S pumping speed, which have large allowable backpressure sand corrosion resistant materials that provide superior durability to all reactive gasses. Pump and controllers have interchangeability for the same models. Easy monitoring by liquid crystal displays (LCDs) show running conditions, operation hours, rotation speed and operating status (alarm trips). company profile: EBARA Technologies, Incorporated (ETI) founded in 1990, is an American subsidiary of the Precision Machinery Group of EBARA CORPORATION, a world leading manufacturer of vacuum pumps and advanced technology products for clean environments. Varian, Inc. Corporate Headquarters - 3120 Hansen Way, Palo Alto, CA 94304-1030, USA products: Rotary Vane Pumps, Dry Scroll Pumps, High-Vacuum Pumps and vacuum components Varian offers many choices of turbomolecular pumping systems, with pumping speeds from 40 to 1000 liters per second. The systems are fully assembled on either roll-around carts or rugged stationary platforms. All pumps have silicon-nitride ceramic bearings for a long, clean, and virtually maintenance-free life. We offer standard turbomolecular pumps in addition to the wide-range Varian MacroTorr pumps for more demanding applications. company profile: Varian Vacuum Technologies product lines include primary and high-vacuum pumps, ultra-high vacuum pumps, vacuum instrumentation and accessories, and helium mass spectrometer leak detectors. The companys vacuum roots run deep. The ion pump, used for achieving ultra-clean vacuum environments, was invented by Varian Associates, Inc. in the 1950s, initially for evacuating its own high-frequency microwave tubes.   related pages:   cryopumps,   diffusion pumps,   getter ion pumps,   turbomolecular pumps,   vacuum oil and sealants   Keywords   www.vacuum-guide.com