B-3

OPERATION

B-3

 

 

 

CUTTING CAPABILITY

The TOMAHAWK™ 625 is rated at 40 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 TOMA- HAWK™ 625 when cutting mild steel. (The graph plots cut thickness vs. torch travel speed with a torch standoff of 0.15".)

CONSUMABLE LIFE

The expected life for the TOMAHAWK™ 625's elec- trode under normal operating conditions is approxi- mately 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 TOMAHAWK™ 625 system.

Figure B.1

Tomahawk 625 - Cut Capacity Chart

RECOMMENDED TORCH

 

90

 

 

 

 

 

TRAVEL SPEED (IPM)

80

 

 

 

 

 

70

 

 

 

 

 

60

 

 

 

 

 

50

 

 

 

 

 

40

 

 

 

 

 

30

 

 

 

 

 

20

 

 

 

 

 

10

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.125

0.25

0.375

0.5

0.625

0.75

Metal Thickness (inches)

TOMAHAWK 625

TOMAHAWK™ 625

Page 13
Image 13
Lincoln Electric IM10020 manual Cutting Capability, Consumable Life