B-3

OPERATION

B-3

 

 

 

CUTTING CAPABILITY

The PRO-CUT 25 is rated at 25 amps, at 35% duty cycle on a 10 minute basis. If the duty cycle is exceeded, a thermal protector 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 25 when cutting mild steel. (The graph plots cut thickness vs. torch travel speed with a torch standoff of 0.15".)

Torch Travel Speed (IPM)

Maximum Speed

Recommended

80% of

Lincoln's PRO-CUT 25

Cut Capacity Chart

80

60

40

20

0

0.125 0.250 0.375

Metal Thickness (Inches)

Figure B.1

CONSUMABLE LIFE

The expected life for the PRO-CUT 25's electrode under normal operating conditions is approximately 1000 starts/cuts. An erosion of .060" is typical for end of electrode life, however, the electrode life 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 25 system.

PRO-CUT 25

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Lincoln Electric IM665 manual Cutting Capability, Consumable Life