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Thread: Thien Separator from Hot Water Urn

  1. #1
    Supporting Member natie123's Avatar
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    Thien Separator from Hot Water Urn

    My dust extractor is OK for the larger tools (planer, radial arm saw etc) but my shop vacuum is more mobile and therefore more suited for use with smaller power tools (sanders etc). To reduce filter cleaning and for ease of disposal of sawdust, I built a Thien Separator.
    As we live at the coast, I try to avoid rust-prone materials. A 25 liter plastic bucket proved unsuitable as the suction from the shop vacuum deforms the bucket. I then repurposed a 30 liter stainless steel hot water urn to serve as a separator (Photo 1).
    Standard 40 mm plumbing fittings were used for the connections (Photo 2). The intake uses 2 x 45 degree elbows, rather than a 90 degree elbow, to provide a smoother air flow (Photo 2).
    The slot in the baffle is 20 mm wide and the rest of the design is as per Phil’s design.
    Castor wheels were affixed outboard of the urn base, to provide better stability (the separator gets dragged around the workshop by the pipes) (Photo 3).
    Thank you to Phil Thien for the design, it works a treat. NO sawdust ends up in the shop vacuum and hardly any dust gets to the filter. As the urn is watertight it can also be used for liquids. The tap could be left in place to empty the separator if it is often used for liquids.
    (Credit for the design - Phil Thien at J. Phil Thien's Cyclone Separator Lid w/ the Thien Cyclone Separator Baffle).Thien Separator from Hot Water Urn-photo-1.jpgThien Separator from Hot Water Urn-photo-2.jpgThien Separator from Hot Water Urn-photo3.jpg

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    Last edited by natie123; May 15, 2018 at 01:22 AM. Reason: Delete Thumbnails

  2. The Following 6 Users Say Thank You to natie123 For This Useful Post:

    Gregraper33712 (May 10, 2018), Jon (May 9, 2018), PJs (May 10, 2018), raceman61 (May 10, 2018), Seedtick (May 10, 2018), Sleykin (May 10, 2018)

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    Great work. Glad you mentioned Phil Thien. Where does a fella find a water urn (SS) to repurpose ?

    JohnMTO

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    PJs (May 10, 2018)

  5. #3
    PJs
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    Thanks for posting this and credit to Phil Thein! I'm also curious where to find the SS Urn.

    PJ
    ‘‘Always do right. This will gratify some people and astonish the rest.’’
    Mark Twain

  6. #4
    Supporting Member natie123's Avatar
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    Thanks guys. Urns purchased at scrapyards. You pay by weight for the stainless steel. Price then works out reasonable. I have also purchased urns from a second-hand dealer (for use as vessels in my brewery).



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    Last edited by natie123; May 12, 2018 at 05:07 AM. Reason: Correct grammar

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    PJs (May 13, 2018)

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