Manual no. WM070501
Page
18
CoolCut40 - air
along the line. By lightly dragging the shield on the workpiece, you can maintain a
steady cut. For straight-line cutting, use any straight edge as a guide.
5-2.6.Evenly move the torch in the desired direction, at a speed which will ensure good cut
quality. Pulling the torch through the cut is easier than push it.
5-2.7.When cutting, make sure that the sparks are coming out of the bottom of the metal. If
they are spraying on top of the workpiece, you are moving the torch too fast, or you do
not have sufficient power to fully penetrate the workpiece.
5-2.8.When the cut is finished, release the torch switch to extinguish the arc.
5-2.9.Grate Cutting - For rapid restarts, such as grate or heavy mesh cutting, do not release
the torch switch. This avoids the 10 seconds post flow portion of the cutting cycle.
5-2.10.After finish operation, turn off the air supply. In the end, turn off plasma cutting power
source and wall switch.
5-3. Recommend Cutting parameter
The settings listed below are just for initial commission of the machine. The parameters can
be refined in actual cutting.
The cutting speed is for using external air supply. When use internal air supply, the cutting
speed is 60% of using external air.
Material
Thickness (inches) (mm)
Current
(amps)
Maximum travel speed
(ipm) (mm/min)
Mild steel
26 GA
0.5
20
87
2209
10 GA
3.4
25
63
1600
1/4
6.4
40
32
812
3/8
10
40
22
558
1/2
12
40
12
304
Aluminum
1/32
0.8
20
60
1524
1/8
3.2
25
55
1397
