Building my LP Gas Forge





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  1. #1
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    Default Building my LP Gas Forge

    I decided to build a gas forge.

    The old wood burning model works great, but it takes time to make the fire, drag the compressor (for the forced induction) outside and then wait for it to heat up.

    Old faithful.

    Kobus

  2. #2
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    Default Re: Building my LP Gas Forge

    I will start with the burner.

    The high pressure regulator by Safegas.



    0.2Mpa (2 Bar / 29Psi)



    All the parts up to the valve from Cosmo Industrial in Silverton. +-ZAR450-00

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    Last edited by KobusDJ; 2018/06/08 at 08:07 AM.
    Kobus

  3. #3
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    Default Re: Building my LP Gas Forge

    All the parts for the rest of the burner.

    The only reason for having 2 each of the 1/2 inch components is that they sell 2 per packet at Builders Warehouse. There are also some extras. At the time of buying I was not sure how it will fit together where the Mig nozzle must go.



    Decided to drill 12mm hole in the 1 inch T.



    Drill and tap (M6) the 1/2 inch stopper.



    Welded together

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    Last edited by KobusDJ; 2018/06/08 at 07:52 AM.
    Kobus

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  5. #4
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    Default Re: Building my LP Gas Forge

    Where the nozzle goes. Yes, I know it is crooked/askew. I will redo this part later. At least it is functional.



    Everything screwed together.

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    Kobus

  6. #5
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    Default Re: Building my LP Gas Forge

    And there she blows....

    Kobus

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  8. #6
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    Default Re: Building my LP Gas Forge

    Looks awesome Kobus, what do you use the forge for?

    This reminds me when I built a small smelter way back our of fire bricks. Also used some primitive techniques with briquettes and a small blower

    Smelted aluminium like a charm

    Keep posting pics, would like to see the final result
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  9. #7
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    Default Re: Building my LP Gas Forge

    It worked first time. !

    I need to redo the 1 inch T. Firstly to do it straight and secondly I will use a 3/4 inch T. Those 2 x 1 inch air inlets are too much. I had to close one side (masking tape ) to make it burn a nice blue flame.

    Next up is building the actual oven. This will probably happen over this weekend.

    The Bricks are waiting
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    Last edited by KobusDJ; 2018/06/08 at 08:04 AM.
    Kobus

  10. #8
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    Default Re: Building my LP Gas Forge

    Quote Originally Posted by KobusDJ View Post
    Those 2 x 1 inch air inlets are too much. I had to close one side (masking tape ) to make it burn a nice blue flame.
    Why not install a valve to control the air intake?
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  11. #9
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    Default Re: Building my LP Gas Forge

    Quote Originally Posted by QuantumPi View Post
    Looks awesome Kobus, what do you use the forge for?
    Thanks.

    I'm attempting some knife making.

    http://www.4x4community.co.za/forum/...Kobus-maak-Mes
    Kobus

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  13. #10
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    Default Re: Building my LP Gas Forge

    Quote Originally Posted by 4eTouareg View Post
    Why not install a valve to control the air intake?
    I'm thinking of some adjustable thingy/valve.

    At the moment it burns 100% with only the one side open. I may just blank it off.
    Kobus

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    Default Re: Building my LP Gas Forge

    Building the actual oven.

    Mockup.



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    Kobus

  15. #12
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    Default Re: Building my LP Gas Forge

    Building / Welding. All offcuts.

    I built it in two parts. It will bolt together once the bricks are inside.



    It fits



    Done



    Red oxide

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    Kobus

  16. #13
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    Default Re: Building my LP Gas Forge

    The bricks where the burner goes. Angle grinder with masonry disk.



    Painted red. Ready for assembly.



    Final part to hold the burner in place.

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    Kobus

  17. #14
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    Default Re: Building my LP Gas Forge

    Assembled. All bolted up.





    Only the tip of the burner sticking out.



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    Kobus

  18. #15
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    Default Re: Building my LP Gas Forge

    Lighting it up.

    Kobus

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  20. #16
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    Default Re: Building my LP Gas Forge

    Awesome project - looking good.

  21. #17
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    Default Re: Building my LP Gas Forge

    I'm very happy with the result. Everything works as planned.

    I still need to sort out the air intake. Currently I use masking tape to close/partially close the big holes in that 1 inch T-piece. At full blast it sounds like a weber carburetor without an air cleaner.

    **************

    A 6mm rod did not take long to become red hot.
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    Kobus

  22. #18
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    Default Re: Building my LP Gas Forge

    Well done Kobus, I just love DIY projects like these.

  23. #19
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    Default Re: Building my LP Gas Forge

    Nicely done.How hot do you think it can make metal.I wonder if a thermostat could be included.?I soppose with gas you will be limited to a certain heat range but for your application it is hot enough.

  24. #20
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    Default Re: Building my LP Gas Forge

    It should reach 1300 plus
    What is your internal length
    Pull the flare back a bit. It will burn up a lot faster like that
    Last edited by hogbeast; 2018/06/12 at 04:58 PM.
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