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B-2
OPERATION
B-2
RECOMMENDED APPLICATIONS
WELDER
The SAE400 or SAE400 WELD’N AIR provides excel-
lent constant current DC welding output for stick
(SMAW) welding. The field installed optional CV
Adapter (K385-1) provides up to 500 amps at 35 volts
of constant voltage output for semiautomatic welding.
AUXILIARY POWER
The SAE400 or SAE400 WELD’N AIR provides 3 KW
of 115/230 VAC output for auxiliary power and emer-
gency standby power.
COMPRESSED AIR
The SAE400 WELD’N AIR only, provides 35 CFM at
100 PSI compressed air for air arc gouging and air
powered tools.
PRODUCT APPLICATION
TOOL CFM - L/min PSI - kg/cm
2
Arc Gouging, 3/8 in. (9.5)mm Electrode 16 453 18 1.27
(Current Range, 350-600 amps DC)
Grinder, 2 in. (50.8mm) wheel 14-20 396-566 90 6.33
Chipping Hammer- Weight: 18lbs. (8.1kg.) 28-30 793-850 90 6.33
Air or Impact Wrenches: 1/2 in. to 3/4 in. (12.7-19.1mm) 30 850 90 6.33
Paint Sprayer 2-20 57-566 90 6.33
Drills Capacity 3/8 in. (9.5mm) 20-40 566-1133 90 6.33
Sand Blaster - 1/8 in. (3.2 mm) Nozzle diameter 26 736 100 7.03
DESIGN FEATURES AND ADVANTAGES
FOR STICK WELDING
• Excellent DC constant current output for stick weld-
ing applications.
• Continuous adjustment of both voltage and current
for unsurpassed welds on demanding jobs.
• Remote control capability standard.
FOR AUXILIARY POWER
• 3,000 watts of 115/230 VAC, 60 Hz auxiliary power.
• One 20 amp 115 VAC duplex receptacle for up to 26
amps of 115 VAC power.
• One 15 amp, 230 VAC duplex receptacle for up to 13
amps of 230 VAC power.
• Weld and AC auxiliary power at the same time (with-
in the limits shown on the chart below).
OTHER FEATURES
• Perkins 4-cylinder, water cooled diesel engine.
Designed for long life, easy maintenance and excel-
lent fuel economy.
• Engine protection system shuts the engine down for
low engine oil pressure or high coolant temperature.
• Electronic Engine Idler. Engine automatically goes
to low idle in 10 to 14 seconds after welding or use
of auxiliary power stops. Includes high idle switch.
• Gauges for engine oil pressure, coolant temperature
and battery charging ammeter.
• Engine hour meter standard.
• Extended range 22.5 gallon (85.1 L) fuel tank.
FOR COMPRESSED AIR (SAE400 WELD’N AIR only)
• 35 CFM at 100 PSI for air arc gouging and air pow-
ered tools.
• 11 Gallon air receiver tank system with integral over-
pressure relief valve for smooth air delivery.
• Indicator light for compressor operation.
• Gauges for compressor air pressure and compres-
sor oil pressure.
• No welding output derating required at maximum
compressor load.
DUTY CYCLE
Duty cycle is based on a ten minute period and opera-
tion in an ambient temperature of 104°F(40°C).
The SAE400 & SAE400 WELD’N AIR are NEMA rated
at 60% duty cycle. Duty cycle is based on a ten minute
period. Therefore, a 60% duty cycle welder can be
operated at nameplate rated output for 6 minutes out of
every 10 minute period without overheating.
The auxiliary power can be used continuously (100%
duty cycle) within its rated current capacities.
The air compressor on the SAE400 WELD’N AIR is
rated at a 60% duty cycle based on a ten minute peri-
od as described above.
SAE400 & SAE400 WELD’N AIR
Welding Using Only Using Only Total
Current, Amps 115V Circuit, 230V Circuit, Aux.
@ NEMA Arc Amps Amps kVA
Volts
0 26 13 3.0
100 19.5 9.75 2.25
200 13 6.5 1.5
300 6.5 3.25 0.75
400 0 0 0