oxygen gas for cutting

[Pure-Powder]

Was wondering if anyone could tell me how many cuts or at what rate you would go though oxygen on a cnc table? Being used for Plasma Cutting!Thanks Dennis

[Lancelot001]

I work in CNC oxygas cutting for 10 years but dont undersand your question.

[Pure-Powder]

What is the rate of gas usage! How much gas will i use ! Will it break me !

[Lancelot001]

First you must tell what material you want to cut (thickness and steel quality)and what torch.
Because is a link betwen torch duse and thickness of material.
An aproximate guess is 7 bars Oxygen and 3 bars propane gas. for 500 mm/min.

Some pictures (or links) of the machine, gas tanks, parts to be cuts are welcome.

[Weldtutor]

Originally Posted by Pure-Powder what rate you would go though oxygen on a cnc table? Being used for Plasma Cutting!

Is the plasma cutter you plan to use designed for oxygen?
Most smaller ones are for compressed air only.

[Pure-Powder]

HYPERTHERM G3 1000, AND 1/8 MILD STEEL

[Pure-Powder]

NOT REALLY SURE ITS STILL LAYING IN THE BOX ON THE FLOOR...

[Lancelot001]

Now I understand. I think you can use the same presure from air, and reduce the presure until the quality of the cut is still good. But for 3 mm steel, the air is not bad for the quality of the cut. Why change the gas?

Hypertherm recomand this.
Flow rate / 400 scfh; 6.7 cfm (189 l/min) at 90 psi (6.2 bar)
If in my country the oxygen tanks has 6.5 cubic meters = 6500 liter
then in aprox. half hour the tank is empty.

[Lancelot001]

I am very shure that my calculation are wrong

[Gec]

Originally Posted by Pure-Powder HYPERTHERM G3 1000, AND 1/8 MILD STEEL

You can't use oxigen on that plasma cutter, only air or nitrogen.

[Weldtutor]

Here is a link to the machine's specifications & requirements. Air, not oxygen.

http://www.airgas.com/browse/product...D&recIds=26499

[Pure-Powder]

WAS WONDERING IF CUT QUALITY WOULD BE BETTER, BUT NO IF IT TAKES THAT MUCH OXYGEN.... WOULD COST A SMALL FORTUNE.... THINK I WILL JUST BUY A AIR DRYER