Millermatic 350P Aluminum 200/230/460 V, Standard Unit | MillerWelds

Millermatic 350P Aluminum 200/230/460 V, Standard Unit

First single- or three-phase power Millermatic that's optimized to weld aluminum. Perfect for fabrication, manufacturing, maintenance and repair.

Machine only

Pistol Pro

Aluma-Pro Lite


What's Included

  • Power source
  • 10-ft. (3 m) industrial power cord (without plug)
  • 10-ft. (3 m) work cable with clamp
  • Factory-installed gas solenoid
  • Smith® Argon mix regulator/flow gauge with hose
  • Factory-installed, low-mounted running gear/cylinder rack
  • .035 and .047-in. (0.9 and 1.2 mm) U-groove aluminum drive rolls
NEW! True Torque Feed Motor Push-Pull Design
The Millermatic 350P Aluminum features a torque feed push-pull motor that provides continuous push force to the wire while the gun motor controls the speed at the gun. The motors work together to provide accurate and positive wire feed speed without wire shaving or deformation.  
NEW! Electronic Wire Spool Brake
Electronic wire spool brake allows the wire spool to free spool while welding. This provides optimum wire feed delivery. When the gun trigger is released the brake engages.
Synergic Pulse
Synergic pulsed welding mode offers the simplicity of single-knob control. The machine will select the correct pulse power based on the wire feed speed (WFS) set by the operator.  Learn more about synergic pulse mode >>   Learn More
NEW! Synergic MIG and One-Knob Control
Synergic MIG provides communication between power source, feeder and gun. As wire speed increases/decreases, the arc voltage also increases/decreases to maintain a constant welding arc. Synergic one-knob control allows you to set the wire feed speed control on the gun, which simplifies set-up and reduces training time. No need to travel back to the power source to change multiple parameters.
NEW! Trigger Schedule Select
Trigger schedule select (SCHD) allows the operator to select the alternative schedule by quickly tapping the gun trigger when not welding. Useful when switching between two welding parameters is needed.
NEW! Trigger Hold
Trigger hold allows the operator to release the trigger while making long continuous welds, reducing hand and finger fatigue.
NEW! Jog and Purge Feature
Jog and purge allow operator to jog the wire, or purge gas lines and preset gas pressure at the regulator before welding.
Auto Gun Detect
Direct connection for Miller 10-pin XR-Aluma-Pro™ and XR™ Pistol Grip air-cooled push-pull guns. With Auto Gun Detect, simply pull the trigger for the gun to be used and you’re ready to weld. Note: Not compatible with standard MIG guns.

Not Included

  • Shielding gas (for welding with solid wire [GMAW])
  • Welding wire
  • Personal safety products (helmet, gloves)
  • Weld leads
  • Contact your local welding distributor for these plus a full product offering.



Aluminum Welding

General Specifications

Title Millermatic 350P Aluminum 200/230/460 V, Standard Unit
Industries Interests Racing / Customizing / Restoring
Farm and Ranch
Boat / Yacht
DIY / Home Hobbyist
Weldable Metals Aluminum
Input Voltage 208 V
220/230/240 V
460/480 V
Input Phase 1- and 3-Phase
Input Hz 60 Hz
Input Amperage 15 A
Current Type DC
Rated Output 300 Amps at 32 VDC, 60% duty cycle, 60Hz, 1- or 3-Phase
Max Open Circuit Voltage 72 VDC
Amperage Range Amperage Min Max 25 A - 400 A
Wire Feed Speed IPM Range 50 IPM - 800 IPM
MMin Range 1.3 m/min - 20 m/min
Wire Diameter Aluminum 0.035 in - 0.047 in
Aluminum 0.9 mm - 1.2 mm
Spool Size 12 in (305 mm)
Portability Running Gear / Cart (Standard)
Weld Output CV
Net Width 19 in
Net Height 34 in
Net Length 41 in
Net Weight 181 lbs
Warranty 3 Years
Miller's True Blue Warranty



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