Agilent TwisTorr 304 FS - REBUILT

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Weight 17 lbs
Pumping Speed 250 l/s
Ultimate Pressure <1 x 10-10 mbar

Agilent TwisTorr 304 FS Turbomolecular Vacuum Pump - REBUILT

The Agilent TwisTorr 304 FS turbomolecular high-vacuum pump combines Twistorr drag stage technology and Agilent Floating Suspension to provide high performance, reliability and economy. TwisTorr drag stages create high compression ratios for light gases such as Hydrogen and Helium to deliver high throughput and high tolerance of foreline pressure, thereby permitting the use of smaller and more economical backing pumps. This technology results in a compact rotor design that is energy-efficient and maintains a low operating temperature. The Agilent Floating Suspension system reduces noise and vibration, and ensures optimal bearing operating conditions to extent operating life, minimize system downtime, and assure stable pumping performance over time. The unique bearing and dry lubrication in the TwisTorr 304 FS eliminate oil and maintenance, and permit operation of the pump in any orientation. Available with on-board or rack controllers.

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TwisTorr 304 FS ISO-100 / 6" CF ISO-160 / 8" CF
Pumping speed
N2 250 l/s 250 l/s
He 255 l/s 255 l/s
H2 220 l/s 220 l/s
Ar 250 l/s 250 l/s
Gas throughput at full rotational speed Ambient temp. (25ºC) Water temp. (25ºC, 50 l/h)
N2 170 sccm 170 sccm
Ar 110 sccm 110 sccm
Compression ratio & foreline tolerance
N2 > 1 x 1011 > 10 mbar
He > 1 x 1011 > 10 mbar
H2 1.5 x 106 > 4 mbar
Ar < 1 x 1011 > 10 mbar
Base pressure w/ recommended forepump < 1 x 10-10 mbar (< 1 x 10-10 Torr)
Inlet flange 6" O.D. CF / ISO-100 8" O.D. CF / ISO-160
Foreline flange KF-16 NW
Rotational speed 60,000 rpm
Start up time < 3 minutes
Recommended forepump
Mechanical: Agilent DS-102
Dry pump: PTS 300
Operating position Any
Operating ambient temperature +5°C to +35°C
Relative humidity of air 0 - 90% (not condensing)
Bakeout temperature 80°C at inlet flange max (ISO flange) 120°C at inlet flange max (CF flange)
Lubricant Permanent lubrication
Cooling requirements Forced air
Coolant water
Minimum flow:

50 l/h (0.89 GPM)
+15°C to +30°C
3 to 5 bar (45 to 75 psi)
Noise pressure level < 50 dB(A) at 1 meter
Storage temperature -40°C to +70°C
Max altitude 3,000 m
Weight 17 lbs


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Agilent TwisTorr 304 FS - REBUILT User Manual Download

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Agilent TwisTorr 304 FS Turbomolecular Vacuum Pump - REBUILT

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