Plasma Cutting

Plasma Cutting
Consumables
First
MILD STEEL - Hypertherm Powermax 65
®
®
Hypertherm and Powermax are registered trademarks of Hypertherm, Inc. Hanover, NH, USA
ESTIMATED KERF WIDTH
Process
Torch height, bevel, and dross
Thickness (inches)
22GA 18GA 14GA 10GA 3/16
65 A Shielded
1/4
3/8
1/2
0.070
0.076
0.088 0.090
0.062
0.065
0.068
0.065 0.066
45 A Shielded
0.035
0.054
0.055
0.061
FineCut
0.028
0.026
0.016
0.023
Low Speed FineCut
0.026
0.030
0.027
0.023
0.062
0.064 0.066 0.068
0.051
0.054
65 A Unshielded
45 A Unshielded
0.020
0.050
5/8
3/4
0.091
Good
Torchto-Work
Height
inches
inches
Initial Pierce
Height
0.057
0.075
0.081
0.059
inches
%
Pierce
Delay
Time
Cut Speed
Voltage
Cut Speed
Voltage
seconds
ipm
Volts
ipm
Volts
260
123
294
121
190
125
224
123
0.2
140
126
168
125
0.5
90
127
116
127
0.7
45
130
62
129
0.1
10GA
0.15
250
1/4
3/8
0.6
Best Quality
Production
1/2
0.18
300
1.2
30
135
40
132
5/8
0.24
400
2.0
23
138
26
136
Material
Thickness
Current
inches
A
inches
inches
inches
%
26GA
22GA
18GA
Pierce
Delay
Time
Cut Speed
Best Quality
Voltage
Cut Speed
Voltage
seconds
ipm
Volts
ipm
Volts
350
128
500
128
0.0
0.02
0.08
400
0.1
16GA
14GA
0.2
12GA
0.4
Production
350
128
450
128
350
129
400
128
350
130
400
129
270
130
320
129
190
133
216
131
100
134
164
131
19
141
14
143
3/16
0.5
70
135
108
132
8
145
10
145
1/4
0.6
48
137
73
132
Initial Pierce Height
Pierce
Delay
Time
Cut Speed
Voltage
seconds
ipm
Volts
325
78
325
78
325
78
325
78
inches
%
0.0
35
22GA
0.1
20GA
0.15
16GA
250
0.2
0.4
14GA
12GA
inches
Initial Pierce
Height
141
26GA
0.6
Torchto-Work
Height
143
Fine Cut
Torchto-Work
Height
Material
Thickness
12
1
18GA
When cut at the correct speed and voltage, the “middle” arc height that produces the
least bevel also reduces dross cleanup.
15
Edge Start
40
Hard Dross
10GA
3/4
7/8
24GA
Too low
45 Amperes
16GA
3/16
Too high
The arc begins narrow at the top, gets wider in the middle, and gets narrow again at the
bottom. The “best” bevel, and the best cut overall is usually “in the middle.” Check the
charts below for height, then run speed and voltage tests.
65 Amperes
Material
Thickness
Angled
45
10GA
0.5
Recommended
325
78
250
78
200
78
120
78
95
78
0.06
0.15
250
Replace Each Consumable Item When . . .
it is NEARLY worn out !
1. Have the right consumables for your amperage, and make sure your amperage is correct for the material you
are cutting. Perform speed tests and evaluate cut quality.
2. Do not simply replace every component in your consumable stack when one component is worn out.
3. If cut quality falls off, make an immediate inspection of the consumables, air supply, and work lead connection.
4. Get as much experience as you can with your machine.
5.Keep a log of when you replace consumables.
Lines highlighted yellow are the preferred thicknesses for each amperage chart.
I CHOOSE LINCOLN . . .
C U S T O M E R A S S I S TA N C E P O L I C Y
The business of The Lincoln Electric Company® is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers
may ask Lincoln Electric for information or advice about their use of our products. Our employees respond to inquiries to the best of their ability based on information provided to them by the customers and the knowledge they may have concerning the application.
Our employees, however, are not in a position to verify the information provided or to evaluate the engineering requirements for the particular weldment. Accordingly, Lincoln Electric does not warrant or guarantee or assume any liability with respect to such information or advice. Moreover, the provision of such information or advice does not create, expand, or alter any warranty on our products. Any express or implied warranty that might arise from the information or advice, including any implied warranty of merchantability
or any warranty of fitness for any customers’ particular purpose is specifically disclaimed.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the
results obtained in applying these types of fabrication methods and service requirements.
Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.
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