®
MAGNUM 450WC
The Magnum 450WC Water-Cooled Gun and
Cable Assembly
K684
Solid Wire:
.035 - 1/16”
Flux-cored Wire:
This results in cool operation in appli-
cations such as spray transfer, pulse
welding and when using argon
blended gas.
The Magnum 450WC is a water
cooled gun and cable assembly
designed for both gas-shielded solid
(GMAW) and gas-shielded, flux-cored
(FCAW-GS) continuous feed arc
welding wires.
(0.9 - 1.6mm)
.045 - 5/64” (1.2 - 2.0mm)
Choose from 10 ft. or 15ft. (3 or 4.5m)
cable lengths.
The gun has two ratings when
cooled at a minimum water flow
rate of .58 gallons (2.2 liters) per
minute.
To function properly, the 450WC must
be connected to a water cooler. Water
flows through the gun cables and han-
dle to the end of the gun tube, cooling
the gas diffuser and nozzle.
The gun tube angle is 60 degrees.
Cable liners for aluminum wire feeding
are available. See Expendable
Replacement Parts table on page 3.
With straight CO gas:
2
450 amps, 100% duty cycle.
With argon/CO blended gas:
2
The 450WC gun can be connected to
a wire feeder with a Lincoln Fast-Mate
In addition to keeping the contact tip
cool, the outgoing end of the gun tube
is specially designed for maximum
heat transfer between the cooling
water and the gas nozzle. The gas
nozzle will not overheat, even when
operating the gun at 100% duty cycle.
400 amps, 100% duty cycle.
™
adapter or a European-style gun
adapter. The following connector kits
allow connection of the 450WC gun
to wire feeders without Fast-Mate
receptacles:
The wire diameter range is
.035 - 5/64” (0.9 - 2.0mm):
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EXPENDABLE REPLACEMENT PARTS
Description
Part No.
Size Inches
Size mm.
CABLE LINER for 15' (4.5m)
and less (Steel wire)
M16083-1
.035-.045
.052-1/16
1/16-5/64
.030-.035
1/16
.9-1.2
1.3-1.6
1.6-2.0
.8-.9
1.6
M16083-2
M16083-3
CABLE LINER for 15' (4.5m)
and less (Aluminum wire)
M18732-2 (black)
M18732-4 (red)
M18732-6 (blue)
M18732-1 (black)
M18732-3 (red)
M18732--5 (blue)
S22334-035
S22334-035A
S22334-040
S22334-040A
S22334-045
S22334-364A
S22334-052
S22334-116
S22334-116A
S22334-564
S22030-1
.035-3/64
.030-.035
1/16
.9-.2
.8-.9
1.6
CABLE LINER for 10' (3.0m)
and less (Aluminum wire)
.035-3/64
.035
.9-1.2
.9
CONTACT TIPS(1)
.035A
.9A
.040
1.0
.040A
1.0A
1.2
.045
3/64A
1.2A
1.3
.052
1/16
1.6
1/16A
1/16A
2.0
5/64
GAS DIFFUSER
NOZZLE INSULATOR
GAS NOZZLE (flush)
(flush)
S22031-1
M18210-1
.39 ID
.51 ID
.59 ID
.59 ID
.76 ID
.76 ID
10 ID
M18210-2
13 ID
(flush)
M18210-3
15 ID
.12" (3mm) recess
M18210-4
15 ID
.12" (3mm) recess
Spot
M18210-5
19.2 ID
19.2 ID
M18210-6
GUN TUBE ASSEMBLY REPLACEABLE PARTS:
GUN TUBE INSULATION
NOZZLE HOLDER(2)
FIXING NUT
S22333-7A
S22333-7B
S22333-7C
S22333-7D
S22333-7F
T12837
CERAMIC INSULATOR(2)
INSULATION CONE
JOINT COMPOUND
(1)
(2)
Add suffix “D” for 10-pack, “M” for 20-pack.
Joint compound is required for assembly of these parts.
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Magnum
E12.70 3/00
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