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Tool Talk Discussion Forum

oxy/acet usage

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ross in ns

12-02-2006 15:00:57

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hi all just wondering if any one has ever kept track of how much cutting can be done on a tank of oxy or acet i know it depends on your pressure and what your cutting but just wondering for an average say 1/4 steel how many feet could you cut i have about 15feet of 1/4 plate to cut about an hour away from me i have 1500 psi of oxy left and 130 psi of acet left in tanks wonder if this will do it or should i lug another set of bottles in to the bush with me tanks ross

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Randy in Pa

12-05-2006 01:49:02

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Re: oxy/acet usage in reply to ross in ns, 12-02-2006 15:00:57

The biggest factor in ox consumption is the cleanliness of the tip. It takes way more ox to blast through a dirty tip because of refraction of the air stream to cut the same thickness of metal. and a lot more work to clean the resulting extra slag adhesion. I clean tip in good condition should have a visible column of OX several inches long when you hit the cutting lever. If you have a clean (no rust) cut line on your plate you should get very minimal slag adhesion if any at all with a properly clean tip. 40lb is all you should ever need for 1/2 in and under. It is also important to keep the tip size right for the job.

Randy

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135 Fan

12-03-2006 09:00:16

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Re: oxy/acet usage in reply to ross in ns, 12-02-2006 15:00:57

I don't know what size your cylinders are but they are over half full. Like Stan said, the gauges might not even move. 15 feet isn't too far to cut. Dave

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Stan in Oly, WA

12-02-2006 16:06:04

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Re: oxy/acet usage in reply to ross in ns, 12-02-2006 15:00:57

Hi Ross,

Do you mean you have 15 lineal feet of 1/4" plate to cut? I've done more cutting than that with the oxygen not moving the tank pressure gauge when I opened the valve. I'd guess that your gas pressures will be about what they are now when you're through.

Still, no use setting your gas pressures higher than you need to do the job. Here are the settings from Victor's "Welding, Cutting,& Heating Guide" for cutting 1/4" plate with a 00 cutting tip: Oxygen 20-25 psig, acetylene 3-5 psig, cutting speed 20-28 ipm. If your tip is bigger than 00, try these settings first, then go up 10lb max on the 02, 2lb max on the acetylene. If you've ever seen a track cutter cut plate you'll realize that steadiness is the key, not force.

All the best, Stan

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