13
Operating Machine – Machine Torch CNC
Please ensure all torch consumables are tight before use
1. Ensure machine has been setup as previously stated
2. Turn on the machine and the power light indicates and cooling fan is running
3. Set the function switch in the test gas position, air will flow from torch head, now set the air pressure in
gauge using adjuster on regulator on rear of machine to 70PSI, Once the correct air pressure has been set
press down the adjuster on air regulator and set the function switch to the cutting position
4. Ensure earth clamp is connected to work piece or workbench ensuring a good clean point of contact
5. Select cutting amperage knob to desired cutting power (the following guide lines will vary in accordance to
material grade, characteristics and user operation)
Plasma
Current
(amps)
Material
Thickness
(mm)
AVHC10
Pierce
Delay
Seconds
Plasma
Test Gas
Air
Pressure
Mach-3
THC
Feed
Rate
Pierce
Height
SheetCam
Pierce
Delay
Cut
Height
Best
Feed
Rate
Fastest
Feed
Rate
30
1
0.2
70 PSI
20%
3.5
0.0
1.7
1320
2430
2
0.2
70 PSI
20%
3.5
0.0
1.7
1140
2070
40
3
0.2
70 PSI
20%
3.5
0.0
1.7
1760
3240
4
0.3
70 PSI
30%
3.5
0.1
1.7
1310
1310
5
0.3
70 PSI
30%
3.5
0.2
1.7
1120
1120
6
0.3
70 PSI
30%
3.5
0.2
1.7
940
940
50
1
0.2
70 PSI
20%
3.5
0.0
1.7
2200
4050
2
0.2
70 PSI
20%
3.5
0.0
1.7
1900
3450
3
0.2
70 PSI
20%
3.5
0.0
1.7
1650
2850
4
0.3
70 PSI
30%
3.5
0.1
1.7
1400
2350
5
0.3
70 PSI
30%
3.5
0.2
1.7
1200
1900
6
0.3
70 PSI
30%
3.5
0.2
1.7
980
1500
7
0.4
70 PSI
30%
3.5
0.3
1.7
800
1150
8
0.4
70 PSI
30%
3.5
0.4
1.7
650
870
9
0.4
70 PSI
30%
3.5
0.5
1.7
520
640
10
0.5
70 PSI
30%
3.5
0.6
1.7
410
470
11
0.5
70 PSI
30%
3.5
0.7
1.7
320
365
12
0.6
70 PSI
30%
3.5
0.8
1.7
255
310
When cutting aluminum, alloys and stainless steel cutting thickness is reduced by approximately 20%
Common question: Why is cut depth reduced when cutting with CNC when compared to hand cutting?
Hand cutting you generally start from edge of work, when CNC cutting you normally start with a pierce
so this is why maximum cut depth is reduced.
6. Once above amperage is set and parameters are set on CNC system you are ready to start cutting.
7. Getting correct amperage / cutting speed for desired job.
8. The combination of correct cutting amperage and travel speed can change per user; here are some tips on
obtaining optimum settings.
