Lincoln Electric IM422 PRO-CUT 40 - Manual (Page 7)

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PRODUCT DESCRIPTION
The PRO-CUT™ 40 is a constant current, continuous
control plasma cutting system. The machine is invert-
er based for portability, and is one of the most sophis-
ticated on the market. It provides excellent starting
characteristics, cutting visibility and arc stability. The
torch has a patented safety mechanism which
ensures that the consumables are in place before cut-
ting can begin. This is extremely important due to the
high voltages involved with the plasma process.
The PRO-CUT 40 comes with an air regulator, coarse
air filter, oil coalescing filter, and pressure gauge. The
system is available with a 25 ft. or a 50 ft. torch cable.
The system is capable of cutting with compressed air
or nitrogen. Nitrogen is typically used to cut aluminum
and other nonferrous metals.
The PRO-CUT is controlled by a microprocessor-
based system. The machine performs rudimentary
self troubleshooting when powered up, which aids in
field servicing.
PREHEAT TEMPERATURE FOR
PLASMA CUTTING
Preheat temperature control is recommended for opti-
mum mechanical properties, crack resistance and
hardness control. This is particularly important on
high alloy steels and heat treated aluminum. Job con-
ditions, prevailing codes, alloy level, and other consid-
erations may also require preheat temperature con-
trol. The following minimum preheat temperature is
recommended as a starting point. Higher tempera-
tures may be used as required by the job conditions
and/or prevailing codes. If cracking or excessive
hardness occurs on the cut face, higher preheat tem-
perature may be required. The recommended mini-
mum preheat temperature for plate thickness up to 1/2
inch is 70 (°F).
USER RESPONSIBILITY
Because design, fabrication, erection and cutting vari-
ables affect the results obtained in applying this type
of information, the serviceability of a product or struc-
ture is the responsibility of the user. Variation such as
plate chemistry, plate surface condition (oil, scale),
plate thickness, preheat, quench, gas type, gas flow
rate and equipment may produce results different than
those expected. Some adjustments to procedures
may be necessary to compensate for unique individ-
ual conditions. Test all procedures duplicating actual
field conditions.
SPECIFICATIONS
Type K1396-1 (60 Hz) Torch with 25 ft.(7.6 m) Cable
K1396-2 (60 Hz) Torch with 50 ft.(15.2 m) Cable
Input Frequency 60 Hz, 1ø
Output Rating 40 Amps @ 60% Duty Cycle
35 Amps @ 100% Duty Cycle
Pilot Current 8 amps
Pilot Duty Cycle 50% (30 seconds out of 60 seconds)
Current Range 15-40 Amps
Maximum OCV 330
Normal OCV 320
Input Power
Standard Voltages 208/230V
Current 41 Amps/38 Amps @ 60%
34 Amps/32 Amps @ 100%
Idle Current 0.6
Idle Power 140W
Power Factor @ Rated Load 0.64
Net Weight
w/25 ft. (7.6 m) Cable 88 lbs/40 kg
w/50 ft. (15.2 m) Cable 96 lbs/43.4 kg
Dimensions, H x W x D 17.7” x 10.5” x 22.6”
(443 x 267 x 574 mm)