Miller Electric SW3 - Manual

Process
Resistance Spot Welding
Work Capacity 20 kVA units
weld total thicknesses up to 1/4 in
(6.3 mm). Not recommended for
aluminum or copper alloys.
Rated Output 20 kVA at 40% duty cycle
depending on model, based
on 10-second time period
Weight SSW 170 – 185 lb (77 – 84 kg) Depending on model
Applications
Sheet Metal Work
Light Fabrication
Maintenance Work
Quick
Specs
SSW Series Spot Welders
Water-Cooled Resistance
Spot Welders
Issued July 2008 • Index No. SW/3.1
The Power of Blue ® . SSW foot switch permits user to use both hands
to position weldment between tongs. Can be held
longer if longer hold time is desired.
All spot welders operate on single-phase input
power, and require an air supply of 60 PSI
(414 kPa) minimum.
Miller Electric Mfg. Co.
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
Web Site
www.MillerWelds.com
International Headquarters
Phone: 920-735-4505
USA FAX: 920-735-4134
Canadian FAX: 920-735-4169
International FAX: 920-735-4125
SSW models are designed for stationary
use and come with an all-steel pedestal
which houses timers and controls.
SSW models come complete with:
Stationary welding head
Remote foot switch
Pedestal inclusive of controls
and timer
Air filter/regulator assembly
Order tongs/tips separately to
match your applications
Air filter/regulator
assembly included.
Set-up/weld switch permits checking of
tong pressure and alignment without
making a weld.
Built-in squeeze/weld timer makes it quick
and easy to set or adjust squeeze and/or
weld time in hundredths of a second.
LED display makes it easy to read and
see timer settings.
Ten-step current control adjusts output current
with no change in duty cycle.
Cam-operated locking device simplifies
installation and adjustment of bottom tong.
Power switch/power “on” light/circuit breaker
protects control circuitry. Easy reset.
Adjustable tong pressure nuts to adjust tong
pressure for different thicknesses and applications.
Model
SSW-2020 ATT
Stationary
SSW-2040 ATT
Stationary
Work
Capacity*
1/4 in
(6.3 mm)
Input
50/60 Hz
230 VAC
90 Amps
460 VAC
45 Amps
Rated
Out put**
20 kVA at
40% Duty
Cycle
Rated Output (Calibrated w/ standard-type tongs)
6 in (152 mm) 12 in (305 mm) 18 in (457 mm)
12,500 A 10,500 A 9000 A
Specifications
(Subject to change without notice.)
Max. Open-
Circuit Voltage
3.55
Dimensions
H x W x D
49 x 11 x
21-3/4 in
(1245 x 280
x 552 mm)
Net
Weight
185 lb
(84 kg)
*Combined thickness un coated mild steel using 6 in (152 mm) tongs.
**Duty Cycle based on 10-second time period. (40% duty cycle means unit can weld for 4 second out of each 10-second time period.)