- Pumping Speed: N2: 250 l/s
- Compression Ratio: N2: > 1 x 1011
- Inlet Flange; ISO 100
- Foreline Flange KF 16
The Agilent Instrument TwisTorr 304 FS Air Cooled is a Turbo Molecular pump with ISO 100 X3500-64060 for high and ultra-high vacuum applications. Agilent Technologies TwissTor 304 FS is a replacement for well known Varian TV 301 9698918M00 Air Cooled Turbo Pump. TwissTor 304 FS has new and Improved floating suspension bearings. Twisstor Drag stage technology create high compression rations for gases like Helium and Hydrogen to deliver high tolerance of forline pressure, permiting use of smaller backing pump.
TwisTorr 304 is able pump any type of non-corrosive gas or gas compound.
Air Cooled Agilent Technologies TwisTorr 304 FS pumping action is obtained through a high speed turbine (max. 60000 rpm) driven by a high-performance 3-phase electric motor. The TwisTorr 304 FS is free of contaminating agents and, therefore, is suitable for applications requiring a "clean" vacuum.
The Agilent Instrument Pump TwisTorr 304 FS X3500-64060 pump consists of a high frequency motor driving a turbine fitted with 8 bladed stages and 3 TwisTorr drag stages. The turbine rotates in a counterclockwise direction when viewed from the high vacuum flange end. The turbine is made of high-strength aluminium alloy, machined from a single block. The TwisTorr stages are in the form of three disks.
Recomended Agilent Varian Forline Backing Pump is Varian Agilent SH110 P/N EXSH01101UNIV Dry Pump, or Agilent DS102 P/N 9499315 Rotary Vane Pump
The TwisTor 304 FS turbine rotor is supported by permanently lubricated high precision ceramic ball bearings installed on the forevacuum side of the pump. The static blades of the stator are made of stainless steel. These are supported and accurately positioned by spacer rings. Varian TwisTorr 304 stators are in the form of selfpositioning machined disks. On each disk there are parallel spiral pumping channels designed to pump in centrifugal direction on one side and in centripetal direction on the other side. These are made of aluminium alloy. During normal operation, the motor is fed with a voltage of 54 Vac three-phase at 1010 Hz. To reduce losses during start-up to a minimum, the frequency increases according to a ramp with a higher initial voltage/frequency ratio.
Ordering Info for Agilent Varian TwisTorr 304 FS: X3500-64060 Air Cooled with DN 100 ISO Inlet Flange


A&J Vacuum also repair / rebuild and service all Agilent Instrument TwisTorr 304 X3500-64060 Pumps Vacuum Pumps and Agilent Turbo Pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page.

A&J Vacuum also repair / rebuild and service all Agilent Instrument TwisTorr 304 X3500-64060 Pumps Vacuum Pumps and Agilent Turbo Pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page.
We can have a repair estimate ready for your equipment within the hour of submission.
Start your equipment repair process by creating a Service RMA.
A&J Vacuum Services provides repairs on all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair and Mass Spectrometer repair. Our highly trained technicians will deliver the highest quality service and satisfaction.
We operate at our own full service repair facility which allows us to quickly and economically perform all repairs in a timely manner. Our advandced machinery enables us to handle all facets of the service and repair process. AJVS utilizes industry standard vibration analysis equipment and advanced testing equipment to troubleshoot and minimize all equipment failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.