Miller Maxstar 400 DC TIG Welder (907716)

Miller Maxstar 400 DC TIG Welder (907716) is a powerful, compact power source capable of welding up to 5/8 inch material. Its high speed pulse control provides maximum productivity and weld quality while conserving energy compared to traditional welding machines.

DC TIG Features
Blue Lightning – High Frequency Arc Starter
For more consistent non-contact starts and greater reliability compared to traditional HF arc starters.
120 V Auxiliary Power
The Maxstar 400 has a 120 V auxiliary power receptacle for the cooling system or small tools.

Auto-Line Power Management Technology
Allows for any input voltage hookup (208 – 575 V) with no manual linking, providing convenience in any job setting. Ideal solution for dirty or unreliable

Other TIG Features
• Exceptionally smooth and precise arc for welding exotic materials.
• High-speed DC TIG pulse controls; Pulse frequency capable of pulsing 5000 pulses per second. Pulsing adds arc stability, reduces heat input and warpage and can increase travel speeds. Other parameters include peak amperage, peak time and background amperage.

Stick Features (DC)
Program memory
Program memory features 9 independent program memories that maintain/save your parameters.

Meter Calibration
Allows meters to be calibrated for certification.

Other Stick Features
• Tailored arc control (DIG) allows the arc characteristics to be changed for specific applications and electrodes. Smooth running 7018 or stiffer, more penetrating 6010.
• Hot Start adaptive control provides positive arc starts without sticking.

Comes complete with:
• Quick Reference Guide: English | Spanish
• 8 ft (2.4 m) primary cord
• (2) Dinse 50 mm connectors
• DVD set-up video (251116)
• Note – TIG torch adapter must be ordered separately.

MPN: MIL907716

UPC: 715959648349

Processes TIG (GTAW)
Pulsed TIG (GTAW-P)
Stick (SMAW)
Air carbon arc (CAC-A)
400: 1/4 in. maximum

Designed For Precision fabrication
Tube mills
Pipe and tube fabrication
Tool and die
Exotic material fabrication
Pressure vessel fabrication
Construction and Fabrication

Amperage 3–400 A

Material Thickness Steel 0.012 in. (0.3 mm) – 5/8 in. (15.9 mm)

Weldable Metals Specialty Metals
Stainless Steel
Steel

Input Voltage 208 V
220/230/240 V
380/400 V
460/480 V
575 V

Input Phase 1- and 3-Phase

Input Hz 50/60 Hz

Input Phase DC

Rated Output 300 A at 32 V, 60% duty cycle

Max Open Circuit Voltage 75 VDC

Portability Lift Eye (Standard)
Running Gear / Cart (Optional)

Weld Output CC

Weight 134 lb. (61 kg)

Warranty 3 Years
Miller’s True Blue Warranty