Tweco 400 XT Ultra-Cut Plasma Cutting System - Manual (Page 20)

ULTRA-CUT 400 XT
2-4 SPECIFICATIONS Manual 0-5275
2.09 Gas Requirements
The customer will provide all gases and pressure regulators. Gases must be of high quality. Pressure regulators shall be double
stage and installed within 3 meters from the Gas Console.
Ultra-Cut 400 XT™ Power Supply: Gas Pressures, Flows, and Quality Requirements
Gas Quality Minimum Pressure Flow
O2 (Oxygen) 99.5% Purity
(Liquid recommended)
120 psi
8.3 bar / 827 kPa
200 scfh (5700 l/h)
N2 (Nitrogen) 99.5% Purity
(Liquid recommended)
<1000 ppm O2, <32 ppm
H2O)
120 psi
8.3 bar / 827 kPa
300 scfh (8496 l/h)
Compressed
or Bottled Air
Clean, Dry,
Free of Oil (see Note 1)
120 psi
8.3 bar / 827 kPa
500 scfh (14158 l/h)
H35 (Argon-Hydrogen)
H35 = 35% Hydrogen,
65% Argon
99.995% Purity
(gas recommended)
120 psi
8.3 bar / 827 kPa 200 scfh (5700 l/h)
H17 17.5% Hydrogen
32.5% Argon
50% Nitrogen
99.995% Purity
(gas recommended)
120 psi
8.3 bar / 827 kPa 200 scfh (5700 l/h)
H2O (Water) See Note 2 50 psi (3.5 bar) 10 gph (38 lph)
Note 1: The air source must be adequately filtered to remove all oil or grease. Oil or grease
contamination from compressed or bottled air can cause fires in conjunction with oxygen.
For filtering, a coalescing filter able to filter to 0.01 microns should be placed as close as
possible to the gas inlets on the Gas Control Module.
Note 2: The tap water source does not need to be deionized, but in water systems with extremely high mineral content a water
softener is recommended. Tap water with high levels of particulate matter must be filtered.
Note 3: Water Pressure Regulator No. 8-6118 is recommended to ensure proper water pressure.
2.10 Gas Applications
MATERIAL MILD STEEL STAINLESS STEEL ALUMINUM
GAS TYPE GAS TYPE GAS TYPE
OPERATION PREFLOW PLASMA SHIELD PREFLOW PLASMA SHIELD PREFLOW PLASMA SHIELD
30A Cut
Air O2 O2 Air Air Air Air Air Air
N2 N2 H20 N2 N2 H20
50A Cut
Air O2 Air Air Air Air Air Air Air
N2 N2 H20 N2 N2 H20
70A Cut
Air O2 Air Air Air Air Air Air Air
N2 N2 H20 N2 N2 H20
100A Cut
Air O2 Air N2 H35 N2 N2 H35 N2
N2 N2 H20 N2 N2 H20
150A Cut
Air O2 Air N2 H35 N2 N2 H35 N2
N2 N2 H20 N2 N2 H20
200A Cut
Air O2 Air N2 H35 N2 N2 H35 N2
N2 N2 H20 N2 N2 H20
250A Cut Air O2 Air
300A Cut
Air O2 Air N2 H35 N2 N2 H35 N2
N2 N2 H20 N2 N2 H20
400A Cut
Air O2 Air N2 H35 N2 N2 H35 N2
N2 N2 H20 N2 N2 H20
N2 H17 N2 N2 H17 N2