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 informa-tion 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.

MILD STEEL - Hypertherm® Powermax®65Process Thickness (inches)

22GA 18GA 14GA 10GA 3/16 1/4 3/8 1/2 5/8 3/4

65 A Shielded 0.062 0.065 0.068 0.070 0.076 0.088 0.090 0.091

45 A Shielded 0.035 0.054 0.055 0.061 0.065 0.066

FineCut 0.028 0.026 0.016 0.023

Low Speed FineCut 0.026 0.030 0.027 0.023

65 A Unshielded 0.062 0.064 0.066 0.068 0.075 0.081

45 A Unshielded 0.020 0.050 0.051 0.054 0.057 0.059

ESTIMATED KERF WIDTH

First

Torch height, bevel, and dross

Good Angled Too high Too low Hard Dross

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.

When cut at the correct speed and voltage, the “middle” arc height that produces the least bevel also reduces dross cleanup.

Material Thickness

Torch- to-Work Height

Initial Pierce Height

Pierce Delay Time

Best Quality Production

Cut Speed Voltage Cut Speed Voltage

inches inches inches % seconds ipm Volts ipm Volts

16GA

0.6

0.15 250

0.1260 123 294 121

10GA 190 125 224 123

3/16 0.2 140 126 168 125

1/4 0.5 90 127 116 127

3/8 0.7 45 130 62 129

1/2 0.18 300 1.2 30 135 40 132

5/8 0.24 400 2.0 23 138 26 136

3/4

Edge Start

15 141 19 141

7/8 12 143 14 143

1 8 145 10 145

65 AmperesMaterial

Thickness

Torch- to-Work Height

Initial Pierce Height

Pierce Delay Time

Best Quality Production

Cut Speed Voltage Cut Speed Voltage

inches inches inches % seconds ipm Volts ipm Volts

26GA

0.02 0.08 400

0.0350 128 500 128

22GA 350 128 450 128

18GA0.1

350 129 400 128

16GA 350 130 400 129

14GA

0.06 0.15 250

0.2 270 130 320 129

12GA0.4

190 133 216 131

10GA 100 134 164 131

3/16 0.5 70 135 108 132

1/4 0.6 48 137 73 132

45 Amperes

Material Thickness Current

Torch- to-Work Height

Initial Pierce HeightPierce Delay Time

Recommended

Cut Speed Voltage

inches A inches inches % seconds ipm Volts

26GA

35

0.6 0.15 250

0.0325 78

24GA 325 78

22GA0.1

325 78

20GA

40

325 78

18GA 0.2 325 78

16GA0.4

250 78

14GA

45

200 78

12GA0.5

120 78

10GA 95 78

Fine Cut1. 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.

Replace Each Consumable Item When . . . it is NEARLY worn out !

www.TorchmateStore.com866-571-2200 ex2 or Parts@Torchmate.com

Hypertherm and Powermax are registered trademarks of Hypertherm, Inc. Hanover, NH, USA

Lines highlighted yellow are the preferred thicknesses for each amperage chart.

Plasma CuttingConsumables