Maxstar® 400 TIG Welder | MillerWelds

Maxstar® 400 208-575 V, TIGRunner

907716001
The Maxstar 400 is a powerful, compact power source capable of welding up to 5/8” material. High speed pulse control provides maximum productivity and weld quality while conserving energy compared to traditional welding machines.
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Spec Sheet (English)
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Features

What's Included

  • Maxstar® 400
  • Coolmate™ 3.5
  • Runner Cart
QuietPulse™
QuietPulse is activated by changing the waveshape for DC pulse welding, creating a slower, more fluid transition between the background and peak amperage to create the least possible audible noise.   Learn More
DC 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
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.
Blue Lightning™ - High Frequency Arc Starter
For more consistent non-contact starts and greater reliability compared to traditional HF arc starters.
Program memory
Program memory features 9 independent program memories that maintain/save your parameters.
Cooler Power Supply (CPS)
An integrated 120-volt dedicated-use receptacle to power the Coolmate™ 3.5. The power switch on the Dynasty also activates the receptacle to help prevent torch failure.   Learn More
Meter Calibration
Allows meters to be calibrated for certification.
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 power.   Learn More
Upgradeable and Expandable
Front panel memory card data port provides the ability to easily upgrade software and expand product features. Visit MillerWelds.com/tigsoftware for the latest software upgrades and expansions.
Cooler-On-Demand™
Feature operates the auxiliary cooling system only when needed, reducing noise, energy use, and airborne contaminants pulled through the cooler.

Not Included

  • Coolant (043810)
  • Weldcraft™ torch kit
  • Remote control

Specifications

Processes

Air Carbon Arc Cutting and Gouging (CAC-A)
TIG (GTAW)
TIG DC (GTAW-DC)
Stick (SMAW)

General Specifications

Title Maxstar® 400 208-575 V, TIGRunner
Industries Interests Construction and Fabrication
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
Current Type DC
Max Open Circuit Voltage 75 VDC
Amperage Min 3 A
Amperage Max 400 A
Portability Lift Eye (Standard)
Running Gear / Cart (Standard)
Weld Output CC
Net Width 23.125 in
Net Height 24.75 in
Net Length 43.75 in
Net Weight 308 lbs
Warranty 3 Years
Miller's True Blue Warranty

Accessories

301790 QuietPulse SD Card
QuietPulse™ Expansion Memory Card

Gain the ability to utilize QuietPulse™ when pulse DC TIG welding. QuietPulse™ activated by changing the waveshape during DC pulse welding, creating a slower, more fluid transition between background and peak amperage to create the least possible audible noise. For use on Maxstar 210, 280, 280 Multiprocess, 400 and 800 machines manufactured prior to serial number ND040985L.

Resources

Literature

Pipe and Tank Product Guide
TIG Product Guide

Videos

Pulsing with TIG
Miller Welding Engineer Zack Erndt explains the benefits of using pulse when TIG welding and talks about applications...
Postflow when TIG Welding
Learn about the value of postflow and what to look for if postflow is not set properly. Without proper settings the...
Wireless Foot Controls Save Time and Money in TIG Welding
Wired foot controls have many costly downsides. Learn how wireless foot controls deliver savings and improve quality.

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