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Replacement tungsten filaments for Cambridge/LEO/Zeiss, AEI, TESCAN, JEOL, ISI & Phillips/FEI/Thermo Fisher instruments

Agar Scientific's tungsten filaments are manufactured in our own production labs to the highest standards. The filaments are precision made in custom engineered jigs to ensure complete accuracy of every filament to gain maximum image quality and life expectancy. All filaments are pre-conditioned by flashing in a vacuum at temperatures above the normal operating level and are then checked for accuracy of centring. Filament assemblies having alignment screws are subsequently adjusted using a light microscope to ensure that they are ready for immediate operation in electron microscopes.

We can also accept many types of filaments for repair provided the bases are in good condition. Repaired filaments are given the same exacting care as our new filaments.

LaB6 filaments

Kimball Physics single crystal lanthanum hexaboride (LaB6 cathodes are available for most makes of electron microscopes and other electron beam instruments where a suitable gun vacuum in the region of 10-7 Torr is attainable. For TEM, the low energy spread of the LaB6 filament is particularly advantageous for high resolution imaging. Alternatively, LaB6 filaments may be used where a long filament life is important; lifetimes in excess of six months continuous operation are regularly achieved.

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7 products available

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  1. Agar Filaments for Cambridge, LEO, Zeiss & AEI
    High-quality replacement tungsten filaments for Cambridge, LEO, Zeiss & AEI electron microscopes. Box of 10. 
    Average lead time: 1 to 28 days

    POA

    Average lead time: 1 to 28 days
  2. Agar Filaments for TESCAN VEGA series AGA047
    High-quality replacement tungsten filaments for TESCAN VEGA electron microscopes. Box of 10.
    In Stock

    POA

    In Stock
  3. Agar Filaments for FEI AGA086
    High-quality replacement tungsten filaments for FEI electron microscopes. Box of 10.
    In Stock

    POA

    In Stock
  4. Agar Filaments for JEOL (K Type) AGA092
    High-quality replacement tungsten filaments for JEOL (K-Type) electron microscopes. Box of 6
    Average lead time: 21 days

    POA

    Average lead time: 21 days
  5. Electron Microscope Filaments
    Replacement filaments for Hitachi, JEOL and Zeiss electron microscopes.
    Average lead time: 1 to 21 days

    POA

    Average lead time: 1 to 21 days
  6. Lanthanum hexaboride filaments
    Kimball Physics single crystal lanthanum hexaboride (LaB6) cathodes are available for most makes of electron microscopes and other electron beam instruments.
    Average lead time: 1 to 45 days

    POA

    Average lead time: 1 to 45 days
  7. Filament repair service
    Agar Scientific provides a re-filamenting service for many types of Tungsten EM filaments.
    Average lead time: 28 days

    POA

    Average lead time: 28 days
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7 products available

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COVID-19: Please note that while we are working closely with our suppliers to minimise the effect of the COVID-19 pandemic, prices and availability may be subject to change at short notice.
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