Tweco Thermal Arc TA 500 - Manual (Page 33)

Manual No 0-0470 3-7 Operation
750 Amperes
The speeds below are typical for cutting at 750 amperes using the 8-6045 tip and the 8-6006 end piece.
GENERAL PURPOSE WATER SHIELD
Plasma gas: N2 at 60 psi (4.1 bar) (100 scfh) Plasma Gas: N2 at 60 psi (4.1 bar) (100 scfh)
Secondary gas: CO
2
at 60 psi (4.1 bar) (350 scfh) Secondary: Water - 12 gph
THICKNESS:
BEST MAX BEST MAX
Stainless Steel 180 (4.57) See Note B 120 (3.05) 150 (3.81)
Aluminum 200 (5.08) See Note B 160 (4.06) 180 (4.57)
Carbon Steel 140 (3.56) See Note B 75 (1.9) 95 (2.41)
THICKNESS:
BEST MAX BEST MAX
Stainless Steel 80 (2.03) 100 (2.54) 50 (1.27) 60 (1.52)
Aluminum 100 (2.54) 130 (3.3) 80 (2.03) 100 (2.54)
Carbon Steel 50 (1.27) 65 (1.65) 30 (0.76) 40 (1.02)
1" (25.4 mm) 1-1/2" (38 mm)
INCHES/MINUTE (METERS/MINUTE)
1/2" (12.7 mm) 3/4" (19 mm)
INCHES/MINUTE (METERS/MINUTE)
1000 Amperes
The speeds below are typical for cutting at 1000 amperes using the 8-6046 tip and the 8-6006 end piece.
For material under 3” (76 mm) thick:
GENERAL PURPOSE
Plasma gas: N2 at 60 psi (4.1 bar) (110 scfh)
Secondary gas: CO
2
at 60 psi (4.1 bar) (350 scfh)
For material over 3” (76 mm) thick:
GENERAL PURPOSE
Plasma Gas: N2 at 60 psi (4.1 bar) (110 scfh)
Secondary: Ar/H
2
at 25 psi (1.7 bar) (250 scfh)
THICKNESS:
BEST MAX BEST MAX
Stainless Steel 50 (1.27) 65 (1.65) 35 (0.89) 50 (1.27)
Aluminum 60 (1.52) 75 (1.9) 55 (1.4) 70 (1.78)
THICKNESS:
BEST MAX BEST MAX
Stainless Steel 20 (0.51) 30 (0.76) 10 (0.25)
Aluminum 40 (1.02) 60 (1.52) 20 (0.51)
3" (76 mm) 4" (102 mm)
INCHES/MINUTE (METERS/MINUTE)
2" (51 mm) 2-1/2" (64 mm)
INCHES/MINUTE (METERS/MINUTE)
Note A: This information represents our best judgement but Thermal Dynamics Corporation assumes no liabil-
ity for its use.
Note B: Exceeds maximum speed of most motorized torch carriers.