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Leybold

Leybold TURBOVAC TW 70 H Turbomolecular Vacuum Pump Rebuilt Refurbished

    Item Number: LEYBOLD-TURBOVAC-TW-70-H

    Warranty: 1 year past the documented date of installation.

    *Product images are for reference purposes only and do not necessarily correspond to the actual product.  


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    855-466-6822

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    Leybold TURBOVAC TW 70 H Turbomolecular Vacuum Pump Rebuilt Refurbished

    TURBOVAC Product Line

    The TURBOVAC pumps are turbomolecular pumps with mechanical rotor suspension which are used in the pressure range from 10-1 mbar (0.75 x 10-1 Torr) to 10-10 mbar (0.75 x 10-10 Torr). Pumping speeds for air vary from 35 l x s-1 (inlet flange diameter = 40 mm (1.57 in.)) to 1,600 l x s-1 (inlet flange diameter = 250 mm (9.84 in.)).

    Through the compact design, the most reliable ceramics ball bearings and the simplicity of operation, this line of pumps is used in all high vacuum and ultrahigh vacuum areas of application.

    In particular the TURBOVAC pumps are very successfully operated in mass spectroscopy applications, gas and liquid chromatographic analysis, CD, DVD and hard disk production, manufacturing of large-surface optical layers, and non-corrosive semiconductor fabrication processes.

    The most important advantages of the TURBOVAC product line are:

    • Oil-free pumps for the generation of clean high and ultra-high vacuum conditions
    • Highly performance in any orientation
    • Highly degree of operating reliability
    • Easy to operate
    • Compact design

    Ceramic Ball Bearings Technology

    All TURBOVAC pumps are fitted with ceramic ball bearings, i.e. ceramicballs are running in steel races. The bearings are lubricated for life by grease.

    Ceramic balls are lighter, harder and smoother than balls made of steel. Therefore, with ceramic balls the wear on the races is significantly reduced. Consequently, the lifetime of the bearings, and hence the lifetime of the pump, is increased.

    The TURBOVAC pumps fitted with grease-lubricated ceramic ball bearings can be mounted in any orientation. As the ball bearing is encapsulated, the grease can not enter the highvacuum space, even if the pump is mounted up-side-down.

    Typical Applications

    • Mass spectrometers
    • Electron beam microscopy
    • Leak detectors
    • R & D, e.g. UHV systems
    • Load locks and transfer chambers

    Technical Features

    • Integrated or external frequency converter
    • Compact design
    • Operation in any orientation
    • High foreline tolerance
    • Oil-free pump for generating clean high and ultrahigh vacuum conditions

    Advantages to the User

    • Space-saving
    • Easy to integrate into complex vacuum systems
    • Allows the use of down-sized forevacuum pumps
    • Low operating costs
    • Highly reliable operation
    TURBOVAC TW 70 H

    Inlet flange
    DN    		 O-ring sealed
    63 ISO-K
    		Metal sealed
    63 CF
    Pump housing   Aluminum

    		 Stainless steel

    Pumping speed at 10-5 / 10-3 mbar
    N2
    Ar
    H2
    He


    l x s-1
    l x s-1
    l x s-1
    l x s-1
    60 / 56
    56 / 54
    40 / 38
    52 / 50
    60 / 56
    56 / 54
    40 / 38
    52 / 50
    Max. gas throughput 1) at 10-1 mbar
    N2
    AR
    H2
    He
    mbar x I x s-1
    mbar x I x s-1
    mbar x I x s-1
    mbar x I x s-1
    1.9
    2.4
    1.3
    1.9
    1.9
    2.4
    1.3
    1.9
    Max. compression when idle
    N2
    Ar
    H2
    He
    		 
    1 x 108 at 14 mbar
    1 x 106 at 14 mbar
    1 x 104 at 0.2 mbar
    2 x 102 at 2 mbar
    1 x 1010 at 10 mbar
    Ultimate pressure
    with two stage oil sealed
    rotary vane vacuum pump
    TRIVAC D 2,5 E

    with dry compressing
    scroll vacuum pump SC 5 D

    with diaphragm pump
    DIVAC 0.8 T


    mbar (Torr)


    mbar (Torr)


    mbar (Torr)


    < 5 x 10-8 (< 3.75 x 10-8)


    < 2 x 10-10 (< 1.5 x 10-10)


    ≤ 0.05 (≤ 0.04)


    < 5 x 10-9 (< 3.75 x 10-9)
    Max. foreline pressure for N2

    		 mbar (Torr) 20 (15) 020 (15)
    Recommended forevacuum pump
    two-stage oil-sealed rotary vane vacuum pump
    diaphragm pump
    oil-free scroll vacuum pump    		  
    TRIVAC D 2,5 E
    DIVAC 0,8 T
    SC 5 D
    TRIVAC D 2,5 E
    DIVAC 0,8 T
    SC 5 D
    Run-up time to 95% speed of nominal speed min 1.5 1.5
    Cooling water connection (option) DN 2 x G 1/8" 2 x G 1/8"
    Weight, approx. with / without frequency converter   3.0 (6.62) / 2.3 (5.08) 3.0 (6.62) / 2.3 (5.08)
    Supply voltage kg (lbs) 24 24
    Max. power consumption
    Run up / ultimate pressure
    		V AC 150 / 30 150 / 30

    1) for continuous operation when water-cooled


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