Miller Electric Sw3 Users Manual A 1 SSW Series

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SSW Series Spot Welders
Quick
Specs

Applications

Process

Sheet Metal Work
Light Fabrication
Maintenance Work

Resistance Spot Welding

Rated Output

Work Capacity 20 kVA units
weld total thicknesses up to 1/4 in
(6.3 mm). Not recommended for
aluminum or copper alloys.

Weight

Issued July 2008 • Index No. SW/3.1

Water-Cooled Resistance
Spot Welders

20 kVA at 40% duty cycle
depending on model, based
on 10-second time period

SSW 170 – 185 lb (77 – 84 kg) Depending on model

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.

®

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
Air filter/regulator assembly
Order tongs/tips separately to
match your applications

Adjustable tong pressure nuts to adjust tong
pressure for different thicknesses and 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.

Built-in squeeze/weld timer makes it quick
and easy to set or adjust squeeze and/or
weld time in hundredths of a second.

Ten-step current control adjusts output current
with no change in duty cycle.

LED display makes it easy to read and
see timer settings.

Specifications

(Subject to change without notice.)

Model

Input
50/60 Hz

Work
Capacity*

Rated
Output**

Rated Output (Calibrated w/ standard-type tongs)
6 in (152 mm) 12 in (305 mm) 18 in (457 mm)

Max. OpenCircuit Voltage

Dimensions
HxWxD

Net
Weight

SSW-2020 ATT
Stationary

230 VAC
90 Amps

1/4 in
(6.3 mm)

12,500 A

3.55

460 VAC
45 Amps

49 x 11 x
21-3/4 in
(1245 x 280
x 552 mm)

185 lb
(84 kg)

SSW-2040 ATT
Stationary

20 kVA at
40% Duty
Cycle

10,500 A

9000 A

*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.

International Headquarters

Web Site

An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA

Phone: 920-735-4505
USA FAX: 920-735-4134
Canadian FAX: 920-735-4169
International FAX: 920-735-4125

www.MillerWelds.com

Control Panel
LED Display
1

4
SPOT TIMER

5

2

First row of LEDs displays
actual times.
Second row of LEDs displays
squeeze time set or weld time set.
4

3

2

1

3
ST

1. Power “On” Light/Circuit Breaker/Switch
2. Fuse to Protect Control Transformer
3. Weld Amperage Control
4. LED Display
5. Set-Up/Weld Switch
Place rocker switch in Set-Up position to
check tong pressure and alignment without
making weld.
Place in Weld position when ready to
activate actual squeeze and weld time.

WT

Sets times from 9.99
to 0.01 seconds

WT Selector Button Set weld
time with buttons (3), (2), (1).
ST Selector Button
Set squeeze time with buttons
(3), (2), (1). Set enough time
for tongs to close before weld
amperage starts.

Genuine Miller Accessories
Coolmate V3

Coolmate 3

Coolmate 4

Tip Dresser #040 228
For use with pointed tips.

Water Coolant Systems
For more information, see the Miller Coolant Systems literature sheet, Index No. AY/7.2.
Coolmate™ 3
#043 007 115 VAC
#043 008 230 VAC
For use with water-cooled torches rated up
to 600 amps. Unique paddle-wheel indicator,
external filter and easy-fill spout.
Coolmate™ V3 #043 009 115 VAC
For use with water-cooled torches rated up
to 500 amps. Vertical design conveniently
mounts to Miller cylinder rack in place of
one cylinder.

2

Coolmate™ 4 #042 288
For use with water-cooled torches rated up
to 600 amps. Tough molded polyethylene
case with carrying handle.
Coolants
#043 810 Coolant, low-conductivity
#043 809 Coolant, aluminum protecting
Sold in cases of four 1-gallon recyclable
plastic bottles. Miller coolants contain a
base of ethylene glycol and deionized water
to protect against freezing to -37˚F (-38˚C) or
boiling to 227˚F (108˚C). Both also contain
a compound that resists algae growth.

Tongs and Tips (Must be ordered separately from spot welders. One pair of tips are supplied with each set of tongs.)
TONG LENGTH
6 in
12 in
18 in
(150 mm) (304 mm) (457 mm)

TONGS

4-1/4 in
(108 mm)

6-1/4 in
(159 mm)

4-1/4 in
(108 mm)

6-1/4 in
(159 mm)

Notes for tongs and tips:
TIPS INCLUDED

STANDARD 90°
No. 1 Morse Taper

#040 218

#040 219

#040 220

#040 223

No. 2 Morse Taper

—

—

#041 001

#040 308

STANDARD 45°
No. 1 Morse Taper

—

#041 004

#041 005

#040 851

No. 2 Morse Taper

—

—

#040 296

#040 225

X

TT-6W
No. 2 Morse Taper

7-1/2 in
(190 mm)

—

—

#041 838

#040 308

X

TT-9W
No. 2 Morse Taper

9 in
(229 mm)

—

—

#041 840

#040 308

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).
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.
One set of tips is supplied with
each set of tongs.
Tips are made of RWMA Class
2 alloy.
Maximum welding capabilities
are obtained with minimum
tong length.
MT = Morse Taper.
No. 1 Morse Taper has smaller
diameter than No. 2 Morse
Taper.

TIPS

QUANTITY

WHERE USED

No. 1 MT (Pointed)
#040 223

2 tips

Standard No. 1 Tongs, 90°

No. 1 MT (Offset)
#040 224

2 tips

Standard No. 1 Tongs, 90°

No. 2 MT (Pointed)
#040 308

2 tips

Standard No. 2 Tongs, 90°
TT-6W Tongs
TT-9W Tongs

No. 1 MT (Offset)
#040 851

2 tips

Standard No. 1 Tongs, 45°

No. 1 MT (Offset)
#040 226

2 tips

Standard No. 1 Tongs, 90°

No. 1 MT (Offset)
#040 298

2 tips

Standard No. 1 Tongs, 90°

No. 2 MT (Offset)
#040 225

2 tips

Standard No. 2 Tongs, 45°

No. 1 MT (Flat Swivel Tip)
Matching Pointed Tip
#040 216

2 tips

Standard No. 1 Tongs, 90°

Adapter (adapts No. 1 Morse Taper Tip
to No. 2 receptacle)
#040 227

2 adapters

Standard No. 2 Tongs, 90°
TT-6W Tongs (top)
TT-9W Tongs (top)

3

Typical Installations
Stationary Resistance Spot
Welding Basic Equipment

Coolant line
Coolmate V3
circulator

SSW

TM

Order tongs and tips separately.

Also required:

Pedestal

Coolant line

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.

Slip-on hoses
tighten with
hose clamps

Normally 5/8-18 left-hand
threaded receptacles

Air hose 60 – 100 PSI

Air in
Input power line

Air hoses.

Air filter/regulator
assembly

Foot switch

Ordering Information
Equipment and Options

Stock No.

Description

SSW-2020 ATT

#903 826

Stationary, air-operated, 230 VAC, 50/60 Hz

SSW-2040 ATT

#903 827

Stationary, air-operated, 460 VAC, 50/60 Hz

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
Accessories
Tip Dresser
Coolant Systems
Coolmate™ 3

One pair of tips included with each pair of tongs.
See page 3 for tips that can be ordered in pairs or individually
#040 228

Coolmate™ V3
Coolmate™ 4

#043 007
#043 008
#043 009
#042 288

115 VAC 5/8-18 left-hand inlet/outlet receptacles
230 VAC 5/8-18 left-hand inlet/outlet receptacles
115 VAC 5/8-18 left-hand inlet/outlet receptacles
115 VAC 5/8-18 left-hand inlet/outlet receptacles

Coolant Solution
Low Conductivity
Aluminum Protecting

#043 809
#043 810

Case of four—1 gallon bottles
Case of four—1 gallon bottles

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 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.
To be supplied by local source to meet local electrical codes and guidelines.

Air Hoses

Input Power Cord
Date:

Total Quoted Price:

Distributed by:

Litho in USA

Qty.

Price



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