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My air compressor as decided to lay down on the job and I have a small aluminum job coming up this weekend so I'll be needing the plasma. I've searched and read but I still can't find a answer. I'll be hooking up a cylinder of compressed air. Lws pointed me toward med air. Its cheap and readily available. My question is how long would I expect this cylinder to last? Its a 335 cubic ft. Is it feasible or do I need to go ahead and bite the bullet and repair the compressor? $$$$
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Dynasty 400 Wireless
Coolmate 3.5
Aerowave loaded with Sequencer and pulse
Watermate 1A
Coolmate 3
XMT350 CC/CV
D74DX Feeder double the fun
Optima Pulse Pendant
WC24
30A spoolgun
Neverlast 100 amp plasma with Hyper Duramax torch
Avortec 280 mig
GO CNC Poweredge CC/CV pulse and double pulse
Harris Old school 2 stage Oxy/Ace
Victor flow meters
Flametech Duel flowmeters
Just a hilljack in the woods with fancy welding equipment
and a pet Raccoon. -
335 cf @ what PSI..??Originally posted by sledsports View Post
your plasma consumes how many CFM @ 60?? PSI..?? (60 is a guess... give us your real number)
then we will have to find the calc to figure the conversion..
how much cutting do you need to do??
What is the matter with your compressor??Last edited by H80N; 02-25-2014, 06:47 PM..
*******************************************
The more you know, The better you know, How little you know
“The bitterness of poor quality remains long after the sweetness of low price is forgotten”
Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...
My Blue Stuff:
Dynasty 350DX Tigrunner
Dynasty 200DX
Millermatic 350P w/25ft Alumapro & 30A
Millermatic 200
TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000
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too many variables are missing to think of something...
what makes you think your compressor will be $$$ ?
the air cylinder is a what pressure ? 2200, 2500 if it's the case it should last about the same time an oxy bottle, what is your post flow time on your plasma, pressure required for your alu. thickness...ahhh so many questions.
a guy stuck in the fields would think of stealing air from a large truck tire...
darn...hn80 beat me to the finish line lolComment
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OK, you guys got me. I have no idea what PSI is in a Med air cylinder because I've never messed with one. My plasma says 6.7scfm @ 90psig. I'm cutting some 6"x 5/8" flat stock. Be about 16 square cuts total. I know the compressor is gonna cost $$$$ cause its a Quincy.Dynasty 400 Wireless
Coolmate 3.5
Aerowave loaded with Sequencer and pulse
Watermate 1A
Coolmate 3
XMT350 CC/CV
D74DX Feeder double the fun
Optima Pulse Pendant
WC24
30A spoolgun
Neverlast 100 amp plasma with Hyper Duramax torch
Avortec 280 mig
GO CNC Poweredge CC/CV pulse and double pulse
Harris Old school 2 stage Oxy/Ace
Victor flow meters
Flametech Duel flowmeters
Just a hilljack in the woods with fancy welding equipment
and a pet Raccoon.Comment
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snowbirdOriginally posted by snowbird View Post
.... heck no... dive right in...
we have to know consumption @ pressure
and understand exactly how many cubic feet of air we have in the tank at the pressure that the plasma cutter needs..
AND... Sledsports.... do you have a regulator that will make the pressure your plasma cutter wants..??.
*******************************************
The more you know, The better you know, How little you know
“The bitterness of poor quality remains long after the sweetness of low price is forgotten”
Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...
My Blue Stuff:
Dynasty 350DX Tigrunner
Dynasty 200DX
Millermatic 350P w/25ft Alumapro & 30A
Millermatic 200
TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000Comment
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Its a 3phase running off of a rotary phase converter or (add a phase) as some like to say. It burnt a leg up on my motor starter so a a new starter and some wiring, motor repairs and the compressor needs the head rebuilt with new unloaders (been putting that off for awhile). Fix it all at once is gonna be cash!Originally posted by H80N View PostDynasty 400 Wireless
Coolmate 3.5
Aerowave loaded with Sequencer and pulse
Watermate 1A
Coolmate 3
XMT350 CC/CV
D74DX Feeder double the fun
Optima Pulse Pendant
WC24
30A spoolgun
Neverlast 100 amp plasma with Hyper Duramax torch
Avortec 280 mig
GO CNC Poweredge CC/CV pulse and double pulse
Harris Old school 2 stage Oxy/Ace
Victor flow meters
Flametech Duel flowmeters
Just a hilljack in the woods with fancy welding equipment
and a pet Raccoon.Comment
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Yea, I think I have a good oxy 2 stage Harris out there. I'm not sure if the correct stem is on it tho. I don't know what valve is on the Air cylinder. Haven't picked it up yet.Originally posted by H80N View PostDynasty 400 Wireless
Coolmate 3.5
Aerowave loaded with Sequencer and pulse
Watermate 1A
Coolmate 3
XMT350 CC/CV
D74DX Feeder double the fun
Optima Pulse Pendant
WC24
30A spoolgun
Neverlast 100 amp plasma with Hyper Duramax torch
Avortec 280 mig
GO CNC Poweredge CC/CV pulse and double pulse
Harris Old school 2 stage Oxy/Ace
Victor flow meters
Flametech Duel flowmeters
Just a hilljack in the woods with fancy welding equipment
and a pet Raccoon.Comment
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it may be cheaper to rent or buy a small compressor and work with it, slower but it 'll get the job done.Comment
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The compressor itself has had unloader problems for a while now. I got one unhooked. Its a 2 stage 340 on a 200 gallon tank. I had an electrical issue on the starts the other day and it burnt one of the legs up on the out starter. Cooked the terminal and burnt the wire off. Probably ruined the whole thing. It still pulls together but I'll bet the contacts on that leg is fried crispier than saterday morning bacon.Dynasty 400 Wireless
Coolmate 3.5
Aerowave loaded with Sequencer and pulse
Watermate 1A
Coolmate 3
XMT350 CC/CV
D74DX Feeder double the fun
Optima Pulse Pendant
WC24
30A spoolgun
Neverlast 100 amp plasma with Hyper Duramax torch
Avortec 280 mig
GO CNC Poweredge CC/CV pulse and double pulse
Harris Old school 2 stage Oxy/Ace
Victor flow meters
Flametech Duel flowmeters
Just a hilljack in the woods with fancy welding equipment
and a pet Raccoon.Comment
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if it is a "J" sized bottle... we are looking at bottle pressure of 2640 PSI = 310 CuFt...Standard Volume (14.7 psia, 70 F)
now we need the conversion formula to convert to volume @ 90psi
then divide by 6.7 cfm
Reference chart
Last edited by H80N; 02-25-2014, 07:44 PM..
*******************************************
The more you know, The better you know, How little you know
“The bitterness of poor quality remains long after the sweetness of low price is forgotten”
Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...
My Blue Stuff:
Dynasty 350DX Tigrunner
Dynasty 200DX
Millermatic 350P w/25ft Alumapro & 30A
Millermatic 200
TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000Comment
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your contactor and wire frying has probably been caused by that defective unloader valve, as it tried to start loaded. Some time also combined with a defective check-valve at the tank entrance ( also seen parts of the head valve plates stuck in check valve...) Don't tell us it has no fuses or breaker Ha!
Comment
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HN 80 if you get your hand on a formula to calculate cfm at different psi and psi at different cfm or whatever...I'm interested
Comment
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OK... here ya go...Originally posted by snowbird View PostHN 80 if you get your hand on a formula to calculate cfm at different psi and psi at different cfm or whatever...I'm interested
Last edited by H80N; 02-25-2014, 08:04 PM..
*******************************************
The more you know, The better you know, How little you know
“The bitterness of poor quality remains long after the sweetness of low price is forgotten”
Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...
My Blue Stuff:
Dynasty 350DX Tigrunner
Dynasty 200DX
Millermatic 350P w/25ft Alumapro & 30A
Millermatic 200
TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000Comment
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Well you hit the nail on the head. Lol. Yes its breakered but its over killed like everything else I do.Originally posted by snowbird View Postyour contactor and wire frying has probably been caused by that defective unloader valve, as it tried to start loaded. Some time also combined with a defective check-valve at the tank entrance ( also seen parts of the head valve plates stuck in check valve...) Don't tell us it has no fuses or breaker Ha!Dynasty 400 Wireless
Coolmate 3.5
Aerowave loaded with Sequencer and pulse
Watermate 1A
Coolmate 3
XMT350 CC/CV
D74DX Feeder double the fun
Optima Pulse Pendant
WC24
30A spoolgun
Neverlast 100 amp plasma with Hyper Duramax torch
Avortec 280 mig
GO CNC Poweredge CC/CV pulse and double pulse
Harris Old school 2 stage Oxy/Ace
Victor flow meters
Flametech Duel flowmeters
Just a hilljack in the woods with fancy welding equipment
and a pet Raccoon.Comment
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I can see that you guys have your act together but I don't. I shoulda gathered up more information than I have before I start gouging out questions. Lol. I'll pick up a cylinder and some fittings and see if I can round up more info and get back with you guys.Dynasty 400 Wireless
Coolmate 3.5
Aerowave loaded with Sequencer and pulse
Watermate 1A
Coolmate 3
XMT350 CC/CV
D74DX Feeder double the fun
Optima Pulse Pendant
WC24
30A spoolgun
Neverlast 100 amp plasma with Hyper Duramax torch
Avortec 280 mig
GO CNC Poweredge CC/CV pulse and double pulse
Harris Old school 2 stage Oxy/Ace
Victor flow meters
Flametech Duel flowmeters
Just a hilljack in the woods with fancy welding equipment
and a pet Raccoon.Comment
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