Miller Electric Welder SSW 2020 ATT User Manual

Issued April 2009 • Index No. SW/3.1  
Water-Cooled Resistance  
Spot Welders  
SSW Series Spot Welders  
Applications  
Process  
Resistance Spot Welding  
Rated Output 20 kVA at 40% duty cycle  
Sheet Metal Work  
Light Fabrication  
Maintenance Work  
depending on model, based  
on 10-second time period  
Quick  
Work Capacity 20 kVA units  
weld total thicknesses up to 1/4 in  
(6.3 mm). Not recommended for  
aluminum or copper alloys.  
Weight SSW 170185 lb (7784 kg) Depending on model  
Specs  
SSW foot switch permits user to use both hands  
to position weldment between tongs. Can be held  
longer if longer hold time is desired.  
®
The Power of Blue.  
SSW models are designed for stationary  
use and come with an all-steel pedestal  
which houses timers and controls.  
All spot welders operate on single-phase input  
power, and require an air supply of 60 PSI  
(414 kPa) minimum.  
SSW models come complete with:  
Stationary welding head  
Remote foot switch  
Pedestal inclusive of controls  
and timer  
Adjustable tong pressure nuts to adjust tong  
pressure for different thicknesses and applications.  
Air filter/regulator assembly  
Order tongs/tips separately to  
match your applications  
Power switch/power “on” light/circuit breaker  
protects control circuitry. Easy reset.  
Air filter/regulator  
assembly included.  
Set-up/weld switch permits checking of  
tong pressure and alignment without  
making a weld.  
Cam-operated locking device simplifies  
installation and adjustment of bottom tong.  
Ten-step current control adjusts output current  
with no change in duty cycle.  
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.  
Specifications  
(Subject to change without notice.)  
Input  
Work  
Rated  
Rated Output (Calibrated w/ standard-type tongs) Max. Open-  
6 in (152 mm) 12 in (305 mm) 18 in (457 mm) Circuit Voltage H x W x D  
Dimensions Net  
Weight  
Model  
50/60 Hz Capacity* Output**  
SSW-2020 ATT 230 VAC 1/4 in  
20 kVA at 12,500 A  
Cycle  
10,500 A  
9000 A  
3.55  
49 x 11 x  
21-3/4 in  
(1245 x 280  
x 552 mm)  
185 lb  
(84 kg)  
Stationary  
90 Amps (6.3 mm) 40% Duty  
SSW-2040 ATT 460 VAC  
Stationary  
45 Amps  
*Combined thickness uncoated 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.)  
Miller Electric Mfg. Co.  
Equipment Sales US and Canada Web Site  
An Illinois Tool Works Company Phone: 866-931-9730  
1635 West Spencer Street  
Appleton, WI 54914 USA  
FAX: 800-637-2315  
International Phone: 920-735-4554  
International FAX: 920-735-4125  
 
Tongs and Tips (Must be ordered separately from spot welders. One pair of tips are supplied with each set of tongs.)  
Notes for tongs and tips:  
TONG LENGTH  
Tongs and tips shown to the  
left can be used with all PSW  
and SSW model spot welders.  
Recommended max. tong  
length is 18 in (457 mm).  
TONGS  
TIPS INCLUDED  
6 in  
12 in  
18 in  
(150 mm) (304 mm) (457 mm)  
STANDARD 90°  
No. 1 Morse Taper #040 218 #040 219 #040 220  
#040 223  
#040 308  
4-1/4 in  
6-1/4 in  
(159 mm)  
(108 mm)  
No. 2 Morse Taper  
#041 001  
Tong throat-height dimension  
for standard 90° and 45° tongs  
is 4-1/4 in (108 mm). Throat  
length is measured from the  
center of the spot tips to the  
front water hose connection.  
X = tong length.  
STANDARD 45°  
No. 1 Morse Taper  
#041 004 #041 005  
#040 851  
#040 225  
4-1/4 in  
(108 mm)  
6-1/4 in  
(159 mm)  
No. 2 Morse Taper  
#040 296  
X
One set of tips is supplied with  
each set of tongs.  
TT-6W  
No. 2 Morse Taper  
#041 838  
#040 308  
#040 308  
7-1/2 in  
(190 mm)  
Tips are made of RWMA Class  
2 alloy.  
Maximum welding capabilities  
are obtained with minimum  
tong length.  
X
TT-9W  
No. 2 Morse Taper  
9 in  
#041 840  
(229 mm)  
MT= Morse Taper.  
No. 1 Morse Taper has smaller  
diameter than No. 2 Morse  
Taper.  
TIPS  
QUANTITY  
WHERE USED  
No. 1 MT (Pointed)  
2 tips  
Standard No. 1 Tongs, 90°  
Standard No. 1 Tongs, 90°  
#040 223  
No. 1 MT (Offset)  
2 tips  
2 tips  
#040 224  
Standard No. 2 Tongs, 90°  
TT-6W Tongs  
No. 2 MT (Pointed)  
#040 308  
TT-9W Tongs  
No. 1 MT (Offset)  
2 tips  
2 tips  
Standard No. 1 Tongs, 45°  
Standard No. 1 Tongs, 90°  
#040 851  
No. 1 MT (Offset)  
#040 226  
No. 1 MT (Offset)  
2 tips  
2 tips  
Standard No. 1 Tongs, 90°  
Standard No. 2 Tongs, 45°  
#040 298  
No. 2 MT (Offset)  
#040 225  
No. 1 MT (Flat Swivel Tip)  
Matching Pointed Tip  
2 tips  
Standard No. 1 Tongs, 90°  
#040 216  
Adapter (adapts No. 1 Morse Taper Tip  
to No. 2 receptacle)  
Standard No. 2 Tongs, 90°  
TT-6W Tongs (top)  
2 adapters  
TT-9W Tongs (top)  
#040 227  
3
 
Typical Installations  
Stationary Resistance Spot  
Welding Basic Equipment  
Coolant line  
SSW  
TM  
Coolmate V3  
Slip-on hoses  
tighten with  
hose clamps  
circulator  
Normally 5/8-18 left-hand  
threaded receptacles  
Order tongs and tips separately.  
Pedestal  
Also required:  
Coolant line  
Air hose 60–100 PSI  
Input power cord of proper size per  
NEC and local codes.  
Coolant source and two coolant  
hoses (5/16 ID). Hoses must be  
compatible with coolant.  
Note: Oxy-acetylene hoses are not  
compatible with ethylene glycol.  
Air in  
Input power line  
Air hoses.  
Air filter/regulator  
assembly  
Foot switch  
Ordering Information  
Equipment and Options  
Stock No.  
#903 826  
#903 827  
Description  
Qty.  
Price  
SSW-2020 ATT  
Stationary, air-operated, 230 VAC, 50/60 Hz  
Stationary, air-operated, 460 VAC, 50/60 Hz  
SSW-2040 ATT  
Tongs  
Order separately  
Ordered by the pair. One pair of tips included with each pair of tongs.  
See page 3 for tong/tip combinations  
Tips  
Order spares or additional types  
One pair of tips included with each pair of tongs.  
See page 3 for tips that can be ordered in pairs or individually  
Accessories  
Tip Dresser  
#040 228  
Coolant Systems  
Coolmate™  
3
#043 007  
#043 008  
115 VAC 5/8-18 left-hand inlet/outlet receptacles  
230 VAC 5/8-18 left-hand inlet/outlet receptacles  
CoolmateV3  
Coolmate™  
#043 009  
#042 288  
115 VAC 5/8-18 left-hand inlet/outlet receptacles  
115 VAC 5/8-18 left-hand inlet/outlet receptacles  
4
Coolant Solution  
Low Conductivity  
Aluminum Protecting  
#043 810  
#043 809  
1 gallon, must be ordered in multiples of 4  
1 gallon, must be ordered in multiples of 4  
Miscellaneous  
Coolant Hoses  
One coolant “out” and one coolant “in” hose required. One end 5/8-18  
left-hand male fitting and the other end “slip-on” secured with hose clamp.  
5/16 ID hoses must be compatible with coolant.  
Air Hoses  
Air supply to air filter to back of controller.  
Air Filter has 1/4 in pipe thread female fittings.  
Controller has 5/8-18 left-hand thread female fittings.  
Input Power Cord  
To be supplied by local source to meet local electrical codes and guidelines.  
Date:  
Total Quoted Price:  
Distributed by:  
Litho in USA  
 

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