Plasma Cutting Air Pressure Will Destroy Your Consumables
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- เผยแพร่เมื่อ 13 ก.ย. 2020
- Plasma cutting air pressure did you know that your plasma cutter air supply has a huge affect on your cutting ability and speed not to mention if your try to use the lowest air pressure needed for plasma cutting it will still cut but the lower the air supply you have the quicker you will burn out your consumables and your cut will become slow and ugly. Cut 40 plasma air requirements are still quite high even for a small machine the cut 50 also requires the same air volume.You can get away with a 20 gallon air tank & at least 3 hp but you might still struggle with cutting thick steel.I run a cut 40 and my ideal air pressure for plasma cutter is 100 psi but you also need the volume of air as well.
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Thanks Pete, as a newbie I really appreciate all the tips. Keep the videos coming and again, thanks.
You bet!
Thanks for the heads up I'm just breaking my cut50 in (p31) and I've junked my tips real fast but now I know why, you just saved me some more money
Glad I could help
Thanks Pete, You don't want to bugger your tip.
Words to live by.
well its true my friend
I saw the thumbnail and stopped by just to say, EVERYBODY SHOULD WEAR THEIR PPE WHILE DOING ANNNNYYYYYY TYPE OF HOT WORK! be safe guys
🙄
cool
That is very helpful info. This made all the difference after trying it. Like a new machine told my boy to do the same for his and we are extremely happy
Glad it was helpful!
Hi there Pete so basically what you are saying the higher the air pressure the better .I make a lot of models and things from tin cans etc etc I use very low air pressure I only have a really small compressor but have added an old gas cylinder to increase the volume of air .I work when cutting tin sheet or tin cans etc on 20 psi and it does the job great sometimes the pressure drops even lower and I don't notice but it still cuts so I think your right in saying thicker higher thinner lower thanks for your vids I wait every week for them .cheers
Marcus from Israel. Keep safe in these bad times
Hi Marcus , You wont have any problem's cutting that thin you can get away with very low air pressure but you need more when you try and cut thicker steel. I would love to see some of your models some time.
Cheers pete & thanks for watching
Thanks Pete, your a wealth of knowledge!
I appreciate that!
Thanks for the tips Pete. Recently picked up a Bestarc, very happy! Hello from Wyoming, USA!
Yea cool machines for price
Simply outstanding!👍👍👍👍👍
Thank you so much 😀
Thanks Pete, great info as usual.
Cheers
Pete
Thanks 👍
Damn, wish I had found your channel 1 week sooner Pete! I had to cut a good amount of 1/2 steel with an abrasive 7" makita angle grinder after blowing out two tips. My psi was down at 40. I just pushed it to 75. I'll post!
Cool
Thanks Pete
welcome
Thanks for sharing!
Our pleasure!
I see , you said turn up the psi so you don't bugger up your tip , good advice , thanks for the video
Cool, Thanks for watching
FOR ANYBODY BRAND NEW TO PLASMA CUTTING, your machine will be rated for a MAXIMUN PSI (air pressure). Cheaper machines will have a lower maximum PSI. My machine is 75 PSI MAX. so just a fair warning, be sure that your machine is able to handle higher amounts of air pressure before cranking it up guys
never had a problem with high air pressure in my experience .And i have tested lots of machines
Thanks mate. Strange though, I was cutting 3/4" thick steel pretty much on the flat, maybe up to an inch gap down under in some places. The air pressure at 80 psi would blow back and fill the cut back up fore & aft. I took it down to 59 psi with a fine tip and zipped right through a very fine kerfed slice with very little blow back. It was a skid plate on the floor prolly 250' long.
Got a video on gouging plate steel?
Good idea might try it thanks.
, I love the man he tells it as it is
lol
Same here. Got new into plasma cutting and the manual of my machine says 58 - 65 psi. At 58 psi , the pilot arc won't even ignite properly. Went to 65 psi and it's much better but I'm still not satisfied with the live of the consumables. Now I'm trying much higher, hope the consumables last longer.
Yea but you need a big compressor to keep it high
The owner's manual for my plasma cutter says the proper air pressure is 40-75 PSI.
I agree with you as I feel the tips wear out fast.
Next time I will use the plasma cutter at 100 psi.
i try and run at 100 psi all the time
I only have a pancake compressor. It struggles to keep up. I noticed my electrodes burn up after a couple hours
I use 90psi
I found that to really help, but I changed to pilot arc and the extra air pressure worked worse. I lowered it for pilot arc and work much better. thanks
Good tip!
thanks for the tip Pete!
You bet!
Pete, thanks for some great videos. I am a newbie and will receive my plasma cutter this week. I am getting a pilot start cutter. I believe you are using one also but I noticed that you are not using a stand-off. Can you use the pilot tip without a stand-off or do you need a drag tip? Bottom line can I touch the material without damaging anything other then maybe the tip.
I always take the guide off . But some people say you cant.
Great!
cheers mate
thanks Pete great video ... i see your a kiwi awesome ... I'm just trying to get into a plasma cutter etc ... where would you recommend getting one please, price range etc and consumables too . cheers
Hi Matt where are you ?
great video Pete, im actually burning the chips too fast. i will try that. at this moment i bought new ones, but the hole is 0.8mm i guess it should be 1mm to cut 5mm with 40 A? so im going to make it bigger with a drill.
good idea
Pete, what are the dimensions of your plasma table. Would you make it bigger or smaller, or do you like the size ok. Thanks for the great videos.
Hi mate, Would like it bigger but I am very limited for room in my garage.
My first time cutting the airline on the machine was partially kinked. And here I thought I had a junk machine. Na. User error. Fixed the hose and now my cutter cuts
cool
@@petestools your videos were very helpful for me just getting into Plasma cutting. Thanks for making them!
Nice video.. What the CFM ? Air pressure is not a problem.. It's the volume that makes the compressor work hard.. My Cut-50 should be here tomorrow.. I guess I should order some consumables.. I have a smaller 1hp compressor..
good luck with it
my air comp. puts out 4.2 and it work great . it is a rollair twin stack set at 90 psi.
Pete can you switch the electro over once one end burn to the other end
yes sure can
Hi Pete, thanks for all your videos.
I have the Bestarc Gen7 cutter and it says max pressure is 70psi. Should I be using max pressure on all my cuts or only the thick stuff? Thank you
Its no point running on max if your only cutting thin shit.
does the cutting tip feel like it sticks to the metal when u touch the work metal with it? i heard doing that can close circuit the machine and screw it up somewhere but i see a lot of videos of people saying its ok
no if your running the correct air pressure it wont stick (pt-31 torch)
Just 1 question why are the strips on your cutting table 90degrees to your cut ??? Cheers from across the pond .. [N.Z west]
lol NZ WEST I LOVE IT
Can the machines with built in compressors even keep a high air pressure? Or are you stuck going through consumables every cut?
You will only get about 40 psi from them
We’re you using your P40? Thanks for that
Yes I am!
HELP: I understand this would not be ideal, but do you think a 26 Gallon (5.0 SCFM @ 40 PSI, 4.0 SCFM @ 90 PSI) be OK for SMALL CNC Plasma cuts and a VERY OCCASSIONAL basic sign? I'd like to use it on an Arcphony Cut53, cutting 14 or 16 gauge steel. I know there are many variables but thought I'd ask before jumping on a great deal for a 26 Gal Dewalt compressor. One of your videos/tests showed cut times in seconds. If you were taking a stab at it, how many seconds would you GUESS it could cut before dying of suffocation? 🙂 Thank you!
no i think your going to need something bigger .otherwise it will drive you nuts .
Hi Pete, there is an air regulator with water trap already attached to my air compressor outlet and also one fitted to the back of my new plasma cutter...should I remove one or using both is ok?
use both .plasma cutters hate water
Interesting. How come you are not damaging de table? Look like stell bar.
Also what hapen if you have to mutch air?
Hi I find you cant really have to much air .
@@petestools ha ok was sure there was a maximum.
moving the torch with start/stop / uneven movement is causing a lot (not all) of that slag drips
Its a learning curve
I noticed that air that comes out of a air compressor is cold , I wonder if the air being cold helps prevent the consumable from melting , i'm just guessing!
Good thoughts ,But they run really hot
Does it not depend on the torch aswell
Yea true but most will run between 40-70 psi
I ❤u pete
Oh shucks
@@petestools will you marry me
Hi Pete,
Really enjoy your informative videos.
I notice no gloves! Are you wearing goggles, and if so what shading? Thx
I hate gloves cant get my hands to work properly wearing them. Only using shade 4 when plasma cutting.
whats the amperage?
50 amp
But what amperage on each?
With my setup the lower you go the worse the consumable life
I was honestly wondering why you bother with measuring air pressure as the point is to blast through the material, I'm sure there is a reason.
I'm assuming it's to do with maximize the heat concentration, but on thin stuff, high air flow seems to make a clean slag free cut for me.
Without air pressure, what would be pushing the material out? Also, what would prevent the torch itself from burning without it?
PSI is an important variable with Plasma cutting and needs to be set correctly for optimal performance.
just try your own setting to what works best for your own machine
Firsttttt peteeeee
lol
@@petestools thks for all this videos! Im starting to use the plasma cutter and im really learning a lot with your channel!