Turbomolecular vacuum pump     ball bearings     magnetic bearings     high vacuum side channel pumps     other high vacuum pumps     vacuum components         America     Asia Pacific     EUROPE         AT     BE     CH     DE     ES     FR     IT     NL     PL     RO     RU     UK     Agilent Technologies Italia SpA - www.agilent.com - via F.lli Varian 54, 10040 Leinì (Torino), Italy email: vpt-customercare@agilent.com Tel. +39 011 9979 111, Toll free: 00 800 234 234 00 Agilent Vacuum Products Division (VPD), formerly Varian Vacuum, is a global supplier with a complete range of vacuum pumps, leak detectors, components and accessories to create, control, maintain and measure vacuum. products:   Turbomolecular Pumps Agilent Turbomolecular Pumps are designed for reliability and optimum performance in the most demanding research, industrial and analytical applications. The Agilent TwisTorr Family, including 84, 304, 404, 704 and 804 FS pumps, is our most recent innovative high-vacuum pump platform. The platform combines TwisTorr drag stage technology and Agilent Floating Suspension. TwisTorr drag stages create high compression ratios for light gases such as hydrogen and helium and deliver high throughput and high foreline pressure tolerance, letting you use smaller and more economical backing pumps. The Agilent Floating Suspension system reduces noise and vibration, ensuring optimal bearing operating conditions to minimize system downtime and safeguard stability. Pfeiffer Vacuum GmbH - www.pfeiffer-vacuum.com - Berliner Str. 43, 35614 Aßlar, Germany email: info@pfeiffer-vacuum.de, Tel. +49 (0)6441 802-0 Pfeiffer Vacuum is a vacuum technology world leader for more than 120 years: an important milestone was the invention of the turbopump in our company more than 50 years ago. Our comprehensive range of solutions, products and services includes vacuum pumps, measurement and analysis equipment, up to complex vacuum systems. products:   Turbomolecular vacuum pumps Pfeiffer Vacuum turbopumps are available for pumping speeds of between 10 and 2,700 liters per second. These pumps will win you over with their high cost-efficiency and flexibility. Pfeiffer Vacuum turbopumps with their optimized reliability use proven bearing systems which are available in two different options - a hybrid bearing system with a combination of a ceramic ball bearing on the forevacuum side and a permanently magnetic radial bearing on the high vacuum side, and a fully, active magnetic bearing system in which the rotor is levitated with no contact or wear at all. Thanks to the sophisticated rotor design, extremely high pumping speed, critical backing pressure and gas throughput values are achieved as well as very good compression values for light gases.     How it works, principles of turbomolecular pumps     Keywords     www.vacuum-guide.com