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  1. #1
    Senior Member
    Chef Niloc's Avatar
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    Would this work?

    Would this propane torch from HF work as a blower in a forge setup?
    http://www.harborfreight.com/propane-torch-91033.html

    Right now I use the small Bernzomatic mapp torch like lined out in the $50 knife shop book.
    http://www.sears.com/shc/s/p_10153_1...=SPM2708030401

    Would A oxy acetylene torch work better then propane as it would get hotter much quicker?

  2. #2
    StephanFowler's Avatar
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    the HF torch will work fine, up to a certain forge volume.

    I wouldn't try and go any bigger than a roughly 8"x4" cylinder with the HF torch.

    It says it can get up to 3000 degrees with the turbo boost but it doesn't say what the sustained BTU output is so I couldn't calculate an exact forge volume.

    Oxy Acetylene will get you up to temp faster but it's to expensive to bother with, once the forge itself is up to temp you use that to heat the steel not the torch. Propane is plenty efficient for that.

  3. #3
    Delbert Ealy's Avatar
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    It depends on what you are looking to do. For blade forging I would recommend www.chiliforge.com you can even do small billets of damascus in that forge.
    It burns about 1/2 gallon of LP per hour. For more serious forging you need something more substantial.

    Laminated metals specialist, Kitchen knife and gadget maker
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    "Build a man a fire and he will be warm for a day, set a man on fire and he will be warm for the rest of his life"

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    That torch will work but will not be optimum. I have heard that they can promote scaling due to not being able to adjust the air/ propane ratio, but have not used one personally. I watched a video of Tia Goo using one and he does some amazing knife work. If you have already forged and know you like it I would reccomend building a better forge with a blown or adjustable venturi burner or buying a premade forge. (the entry level diamond back forge works great). If you just want to give forging a try or have not forged much to know if you will get into it, then a simple forge with that burner should get you started and propably hooked.

  5. #5
    Senior Member tgraypots's Avatar
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    LB White makes torches rated at 200,000 and 500,00, the latter of which I've used to fire my 65 cu. ft. car kiln for the last 17 years. This page gives you some info on them. Unless you need regulators, handles and stuff, just order the torch and orifice. I'm not sure what they cost now, but my first 2 sets were $50.00/pair.
    Tom Gray, Seagrove, NC

  6. #6
    StephanFowler's Avatar
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    Quote Originally Posted by tgraypots View Post
    LB White makes torches rated at 200,000 and 500,00, the latter of which I've used to fire my 65 cu. ft. car kiln for the last 17 years. This page gives you some info on them. Unless you need regulators, handles and stuff, just order the torch and orifice. I'm not sure what they cost now, but my first 2 sets were $50.00/pair.


    65CuFt is a LOT more than any bladesmith would need,

    what cone are you firing to?

    forge welding would require about cone 7 (2200 ish) whereas general forging is better done around cone 04 (1900 ish)

    for a 2 CuFt forge (3456CuIn - which is really big for most bladesmiths) would require roughly a 60k BTU/hr which is significantly less than the smallest burner they list (that or my math is off)



    (my largest forge is only about 600 CuIn)

  7. #7
    Senior Member tgraypots's Avatar
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    Stephan, I bisque fire at cone 06, and glaze fire to cone 9-10, the latter taking about 16 hours for the cones to bend. I'm using 3.5 psi from cone 08 to 9-10. I was just trying to point out an inexpensive alternative. Lots of folks around here build their own burners. We do like to play with fire :-)
    Tom Gray, Seagrove, NC

  8. #8

    JohnnyChance's Avatar
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    Colin, aren't you opening a new restaurant soon? Is that not time consuming enough for you, ya gotta start building knives at the same time?

  9. #9
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    Quote Originally Posted by JohnnyChance View Post
    Colin, aren't you opening a new restaurant soon? Is that not time consuming enough for you, ya gotta start building knives at the same time?
    Two words stress relief

  10. #10

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    pounding on hot steel can really help with that
    sooo much fun even when i dont make anything that is knife shaped

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