Part Number: 300000001U
1 Review

Discontinued - Check out other Miller Welding Equipment

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Miller USED XR-ALUMA-PRO PLUS 15' #300000001U



Higher Amperage Capacity(air-cooled only)

Offers larger amperage range and duty cycle for heavy industrial welding.

Best Feeding Performance

Dual wire tension settings for 4000- or 5000 series aluminum to ensure the very best wire feeding performance and arc consistency.

Heavy-duty Construction

All internal components are designed to provide long lasting performance and feeding precision.

Replaceable Feed Cable Liner

Designed to provide consistent arc performance. It also reduces parts cost and service time by allowing a simple means of removing and replacing liner and not the complete feed cable.

Reduce Service Time

Easy access to drive assembly and removable toolless head tube reduce service time, by allowing a simple means of changing drive rolls and head tube — or performing routine maintenance without disassembly of gun

Trigger Hold

Reduce fatigue by allowing operators to weld without holding gun trigger. (Feature available when paired with XR-Controls or XR-Alumafeed™.)

Multiple Configurations

Threaded quick-change 360-degree rotatable head tubes are available in different bends and lengths for even those hard-to-reach welds. Over 30 different styles to fit your application and welder’s preference. Available in air- or water-cooled versions with 15, 25, or 35 ft. (4.6, 7.6, or 10.6 m) cable lengths.

Complete Your System

XR-Aluma-Pro Plus guns work in conjunction with 74 MPa Plus feeders.



MIL USED XR-ALUMA-PRO PLUS 15' #U300000001 Specs

Amperage Rated Output
  • 300@100%
Cable Length
  • 15 ft
Head Angle
  • 60 degree
Torch Handle Type
  • Gooseneck
Torches Type
  • Push Pull
Wire Size
  • .030-1/16
Net Width
  • 2.5 in
Net Height
  • 2.5 in
Net Length
  • 17 in
Net Weight
  • 2.5 lbs
  • Miller's True Blue Warranty


Height: 12.00 Inches
Width: 12.00 Inches
Length: 12.00 Inches
Weight: 5 Lb(s) 0 Oz

Customer Reviews

Great order experience and even got to talk to somebody!!!!!!!!!
By: Monty - Park City UT
on 7/10/2020
Thanks Trent for helping me today and clarifying some questions with the Miller wirefeeder i have.

Product Questions and Answers

How to replace gun liner:

  1. Lay cable out.

    Lay gun cable out straight.

  2. Remove short leather cover.

    Remove short leather cover to access liner assembly.

  3. Loosen liner lock allen screw.

    Loosen liner lock allen screw (located near back of handle) to remove liner guide reducer from gun.

  4. Remove wire guide cone.

    Remove wire guide cone and wire collet guide from power pin.

  5. Remove old liner.

    Remove old liner from gun end.

  6. Insert new liner.

    Insert new liner into gun end and continue feeding liner through cable assembly until liner is through power pin assembly and is visible.

  7. Install liner assembly.

    Install liner assembly into gun and firmly tighten (do not over tighten) liner lock allen screw.

  8. Reinstall wire collet.

    Reinstall wire collet at power pin and tighten onto liner.

  9. Cut liner off flush.

    Cut liner off flush with wire collet guide. Reinstall wire guide cone.

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