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Thread: pneumatic motor.

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  1. #1
    Join Date
    Aug 2009
    Location
    Canada, Bc
    Posts
    7,633

    Default pneumatic motor.

    Hi, im planing on building a small pneumatic piston motor for a water mixer, and was considering making it out of UHMW, mainly for some fun and experiance with the material.

    And I was wondering just how likey is a UHMW piston to surive a long time unlubed in a UHMW cylinder if speeds are not excessive?
    Or maybe I should do something like a stainless steel or aluminum block and a UHMW piston that gets replaced?

  2. #2
    Join Date
    Jan 2003
    Location
    On the Oil Coast,USA
    Posts
    16,858

    Default

    How big a piston are we talking?

    If it were me I would make a UHMW block and use Stainless sleeves for the cylinders.

    I built a piston pump with a 2" piston diameter,used 2-1/8" OD stainless tube and honed it with a bottle brush hone.

    There is also availble chromed ID aluminum tubing to be had.
    I just need one more tool,just one!

  3. #3
    Join Date
    Aug 2009
    Location
    Canada, Bc
    Posts
    7,633

    Default

    probley just like a 1" piston with an inch or two stroke.. 200~500rpms maybe.

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