Lincoln Electric SVM146-A service manual Cutting Capability, Consumable Life, Limitations

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B-4 B-4

OPERATION

CUTTING CAPABILITY

The PRO-CUT 80 is rated at 80 amps, at 60% duty cycle on a 10 minute basis or 60 amps, at 100% duty cycle. If the duty cycle is exceeded, a thermal protec- tor will shut off the output of the machine until it cools to the normal operating temperature.

Figure B.1 shows the cut capacity of the PRO-CUT 80 when cutting mild steel. The graph plots cut thickness vs. torch travel speed with a torch standoff of 0.15 in. (3.8mm).

Example: 0.5 material

Amps			Speed (IPM)
55				25
80				35
	FIGURE B.1 – LINCOLN’S PRO-CUT 80 MILD STEEL CUT CAPACITY CHART
					Lincoln's PRO-CUT 80
					Mild Steel Cut Capacity Chart
(IPM)		100
		80
TorchTravel Speed	MaximumSpeed
		40
Recommended	80% of	60
		20
						25 A			35 A			55 A		80 A
		0
		0.000	0.125	0.250			0.375	0.500		0.625	0.750		1.00

Material Thickness

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CONSUMABLE LIFE

The expected life for the PRO-CUT 80's electrode under normal operating conditions is approximately 160 starts/cuts. An erosion of .060 in. (1.5mm) is typ- ical for end of electrode life. However, the electrode may last longer. A green and erratic arc will indicate definite electrode failure, and the electrode should be replaced immediately.

It is recommended that consumables be replaced in complete sets. (Example: Electrode and Nozzle). This will maximize the performance of the PRO-CUT 80 system.

LIMITATIONS

Do not exceed output current and duty cycle rating of machine. Do not use the PRO-CUT 80 for pipe thaw- ing.

PRO-CUT 80