Plasma torch cutting techniche

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10-21-2017, 04:49 AM
Joethai

Plasma torch cutting techniche

I cut with a plasma torch and the retaining cap can get overheated

It holds the shield over the nozzle the ring inside the cap can break off that means a new retaining cap

Depending on the thickness of the metal and the number of amps and cutting techniche and angle nozzles electrods lasts from two three hours to a day and when its thin metal and low amps it cuts fast

I hold the fortyfive° angle to the subject even more so on thick metal and stainless steel
10-21-2017, 05:17 PM
alloy2

If you have to angle the tirch it sounds like you should be investing in a larger plasma cutter, what model is your machine and how many amps is it.
10-22-2017, 04:38 PM
Joethai

Quote:

Originally Posted by alloy2

If you have to angle the tirch it sounds like you should be investing in a larger plasma cutter, what model is your machine and how many amps is it.

Hi Alloy actually I'm not the one who invested in it I only use it it is the powermax 125a the shield over the nozzle gets unevenly consumed after a while unless I hold it in a fortyfive° angle for a straight cut through the metal but I could check if there are torches that can have the consumables last longer just to know the difference I'm not complaining about this one though just learning how to use it
10-22-2017, 06:39 PM
alloy2

Quote:

Originally Posted by Joethai

Hi Alloy actually I'm not the one who invested in it I only use it it is the powermax 125a the shield over the nozzle gets unevenly consumed after a while unless I hold it in a fortyfive° angle for a straight cut through the metal but I could check if there are torches that can have the consumables last longer just to know the difference I'm not complaining about this one though just learning how to use it

Thats perhaps the best plasma cutter money can buy, the farm recently traded their 85 amp in for a new 125 amp that I use on occasion.

Keep the cutting head straight onto the work area, after you rigger the torch and make your cut on completion of the cut the machine should continue to blow cooling air through the nozzle.

Air has to be connected and the pressure has to be properly regulated before the machine will fire the torch head.

The only thing I can see that your doing wrong is angling the torch head which tells me you need to crank up the amperage to suit the thickness of the metal your cutting. That 125 amo machine will cut 1.500" with a nice clean cut.
10-23-2017, 04:01 AM
eesakiwi

Avoid blowback. Don't strike the gun in mid air, always onto the metal. Make sure your earth clamping is good.
Is your compressed air 'dry'?
10-23-2017, 11:32 AM
Joethai

Yep holding it straight on to the work area and finding the amperage that suits the best for the thickness of the metal
like crank it up to 125A should be the ideal for 1,35'' according to the official video manual on their website
I try different amperage to find what suits the thickness and follow your advice about the cutting techniche to keep the consumables like the nozzle and electrode longer

Thanks for your tips and advice someone else have reguled the air pressure I used to use a filter to clean the air for oil now there is a new compressor and the pressure is higher now which allows to cut faster now

Cut with a cutting torch today though
10-23-2017, 11:49 AM
Joethai

Quote:

Originally Posted by eesakiwi

Avoid blowback. Don't strike the gun in mid air, always onto the metal. Make sure your earth clamping is good.
Is your compressed air 'dry'?

Yeah thanks I follow that advice striking onto the metal not midair
makes the nozzle and electrode last much longer
Yeah earth clamping good cable is still in okay shape and I clean the surface if there is corrossion before attaching the clamp

About the air its dry yeah no oil in it using a new compressor
10-24-2017, 03:40 PM
Joethai

Quote:

Originally Posted by eesakiwi

Avoid blowback. Don't strike the gun in mid air, always onto the metal. Make sure your earth clamping is good.
Is your compressed air 'dry'?

Yeah your tips true about avoiding blowback for keeping the nozzle and electrode I got a second retaining cap to change when or if one gets overheated cant thank you enough for those tips
10-25-2017, 01:05 PM
Joethai

Quote:

Originally Posted by alloy2

Thats perhaps the best plasma cutter money can buy, the farm recently traded their 85 amp in for a new 125 amp that I use on occasion.

Keep the cutting head straight onto the work area, after you rigger the torch and make your cut on completion of the cut the machine should continue to blow cooling air through the nozzle.

Air has to be connected and the pressure has to be properly regulated before the machine will fire the torch head.

The only thing I can see that your doing wrong is angling the torch head which tells me you need to crank up the amperage to suit the thickness of the metal your cutting. That 125 amo machine will cut 1.500" with a nice clean cut.

Thanks a lot for your tips and advice cant thank you enough