Lincoln Electric Welder 450WC User Manual

®
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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