Miller XR-Alumafeed™ 300509

Part Number: 300509
Out of Stock
$2,950.80 $3,818.00*
SAVE $867.20

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  •  MIG Process
  •  Multi-Phase
  •  3-Year Warranty

Miller XR-Alumafeed™ 300509

Dedicated aluminum wire feeder for AlumaPower™ MPa power sources, providing the most advanced MIG and synergic Pulsed MIG performance. The Miller XR-Alumafeed™ 300509 wire feeder combines with an AlumaPower™ 350 MPa or 450 MPa for a synergic system that simplifies and improves MIG and pulsed MIG welding applications for aluminum welding. 

Miller XR-Alumafeed #300509 Features:

  • Gun calibration - Provides flawless synergic operation with MPa power sources. Allows control box to sync up with the welding gun for accurate and precise wire feed control that is crucial for reducing and eliminating weld defects.
  • Advanced trigger - Control time spent in the arc start and arc crater process and offers "trigger interlock" capability.
  • Bright digital displays - Easy on the eyes for optimal readability. Displays voltage or arc length and wire feed speed or amperage. Features indicators for arc start and arc crater, advanced trigger operations, setup and schedule select. Simple and efficient panel layout features a Two-knob and three-button system to change parameters and reduce training time.
  • Trigger schedule select (SCHD) - Fast and efficient schedule switching allows the operator to switch to alternative welding parameters on the fly. Quickly tap the gun trigger when not welding to switch between two welding parameters. 
  • Setup guide - Displayed on the inner panel of the Alumafeed feeder, featuring quick tips to get your wire feeder up and running as fast as possible. No more worrying about misplacing the operating manual, the setup guide will always travel with your Alumafeed wire feeder.
  • Rugged steel - Heavy duty steel case protects wire from dirt and moisture in harshest of environments. Features a convenient carrying handle for easy portability and improved durability.

Note: The Miller XR-Alumafeed 300509 is the Wire Feeder only. Full synergic operation when used with MPa power sources only. Other Miller 14-pin power sources may be used, but feature operation may be limited. Contact Welders Supply for more information.


Power Source Compatibility for XR-AlumaFeed Wire Feeder

Power Source   Pulse Capable   Synergic Pulsed MIG   Profile Pulse Capability   Electronic Inductance/SharpArc   Compatibility
AlumaPower™ 350 and 450 MPa    Yes (Aluminum only)   Yes (Aluminum only)    Yes   Yes  


Invision™ 352 and 450 MPa

Yes Yes Yes Yes Best

XMT® 350 and 450 MPa 

Yes Yes Yes Yes Best

XMT® 350 and 450 CC/CV

Yes (with Optima) No No Yes Better

XMT® 304 CC/CV

Yes (with Optima) No No Yes Better

Invision™ 456P

Yes (with Optima) No No Yes Better

Invision™ 456MP

Yes No No Yes Better

Invision™ 354P

Yes (with Optima) No No Yes Better

Invision™ 354MP

Yes No No Yes Better

Deltaweld® (after KF790532)

No No No No Good
Welders Supply carries all the best brands of welding equipment. Shop our entire selection of welding machines online now!


  • 951151 Miller AlumaPower Package with Air-Cooled Pistol and Cart
  • 951147 Miller AlumaPower Package with Air-Cooled Pistol
  • 951556 Miller AlumaPower Package with Water-Cooled Pistol and Cart

This product replaces these legacy models:

Miller XR-Alumafeed™ #300509 Specs

Input Power 24 VAC
Input Amperage 5 A
Input Hz 50 / 60 Hz
Input Circuit Welding Rating 400 A at 38 VDC, 100% duty cycle
System duty cycle is limited to gun rating
Power Source Compatability CC/CV, DC
Welding Power Source Type  CC/CV
Wire Feed Speed 50–900 ipm (1.3–22.9 m/min.)
Wire Type and Diameter Capacity  Aluminum: .035–.062 in. (0.9–1.6 mm)
Solid Wire: .035–.045 in. (0.9–1.2 mm)
Maximum Spool Size  12 in. (305 mm)
Heavy Industrial Applications Aerospace
Heavy Equipment Manufacturing
Boat / Yacht
High Purity Processing
Processes Aluminum MIG (GMAW)
Aluminum Pulsed MIG (GMAW-P)
Aluminum Synergic Pulsed MIG (GMAW-P)
Width 23 in. (584 mm)]
Height 16 in. (406 mm)
Length 21.25 in. (540 mm)
Weight 42.5 lb. (19.3 kg)
Portability Handle(s)
Running Gear / Cart (Optional)
Warranty 3 Years - Miller's True Blue Warranty


Height: 9.00 Inches
Width: 16.00 Inches
Length: 22.00 Inches
Weight: 48 Lb(s) 0 Oz

Product Questions and Answers

Q - How fast does it feed wire? A - 50 to 900 ipm is the rating.
Q - Will this work with the XMT 300? A - No, it's not compatible with that machine.

How to Replace Hub Assembly:

  1. Remove Cover.

    Remove gun top cover and release pressure arm.

  2. Take Apart Hub.

    Retract wire onto spool and remove spool. Take hub apart as shown.

  3. Replace Parts.

    Replace broken or worn parts and slide parts onto shaft as shown.

  4. Adjust Tension.

    Adjust hub tension and thread welding wire. Close and latch door.

  5. Close Assembly.

    Close gun pressure roll assembly and reinstall gun cover.

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