Miller Electric SSW Welding Applications and Specifications - Miller SSW 2020 ATT Manual

Issued April 2009 • Index No. SW/3.1

SSW Series Spot Welders Water-Cooled Resistance Spot Welders

Quick Specs

Applications

Sheet Metal Work

Light Fabrication

Maintenance Work

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

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.

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

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.

Air filter/regulator assembly included.

All spot welders operate on single-phaseinput power, and require an air supply of 60 PSI (414 kPa) minimum.

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.

Cam-operated locking device simplifies installation and adjustment of bottom tong.

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

Specifications (Subject to change without notice.)

	Input	Work	Rated	Rated Output (Calibrated w/ standard-type tongs)			Max. Open-	Dimensions	Net
Model	50/60 Hz	Capacity*	Output**	6 in (152 mm)	12 in (305 mm) 18 in (457 mm)		Circuit Voltage	H x W x D	Weight
SSW-2020 ATT	230 VAC	1/4 in	20 kVA at	12,500 A	10,500 A	9000 A	3.55	49 x 11 x	185 lb
Stationary	90 Amps	(6.3 mm)	40% Duty					21-3/4 in	(84 kg)
			Cycle					(1245 x 280
SSW-2040 ATT	460 VAC
								x 552 mm)
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	www.MillerWelds.com
1635 West Spencer Street	FAX: 800-637-2315
Appleton, WI 54914 USA	International Phone: 920-735-4554
	International FAX: 920-735-4125