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Miller Spoolmatic™ Pro 30A 301148

Part Number: 301148
UPC: 715959603430
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  • MIG Welding
  • 1 Year Warranty

Miller Spoolmatic™ Pro 30A  301148 Spool Gun

Most reliable, easy-to-use spool gun in the industry for the professional welder.


  • Best Feeding Performance
  • Durable Design
  • Reduce Service Time
  • Better Gun Access
  • Easy to Use
  • Integrated Spool Canister
  • Two-Stage Trigger
  • Multiple Configurations
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Welding Output Rating 200 A at 100% Duty Cycle
Wire Diameter Capacity .030 - 1/16 in (0.8 - 1.6 mm) aluminum wire and hard wire up .045 in (1.1 mm)
Wire Speed 70 - 875 IPM (1.8 - 22.2 m/min)
Max Spool Size Capacity 4 in (102 mm)
Cable Length 30 ft (9.144 m)
Net Height 10.25 in. (260 mm)
Net Length 15.125 in. (384 mm)
Net Width 2.5 in. (64 mm)
Net Weight 14 lb (6.4 kg) with cable assembly
Processes MIG (GMAW) with aluminum wire and other soft alloys
Pulsed MIG (GMAW-P) with pulsing power source
Heavy Industrial Applications Emergency Vehicles
Recreational Vehicles
Tool Boxes
Trucks and Trailers Railcars
Building Fabrication
Sign Manufacturers
Warranty 1 year - Miller's True Blue Warranty


Height: 7.00 Inches
Width: 17.00 Inches
Length: 17.00 Inches
Weight: 18 Lb(s) 0 Oz

Product Questions and Answers

Q - What's the longest cable that can be used with this? A - Miller says 80' is the maximum. A cable longer than that will cause the Spoolgun to lose its communication signal to the power source.
Q - Will this work with a Dimension 452? A - You'll need a Miller WC-24 Weld Control (#137549) to use this with the Dimension 452.

How to adjust drive roll and spool brake pressure:

  1. Remove cover.

    Loosen thumbscrew and remove screw.

  2. Cut wire off at contact tip.

    Cut welding wire off at contact tip. Retract wire onto spool and secure.

  3. Adjust spool brake thumb-nut.

    Grasp spool in one hand and turn while adjusting spool brake thumb-nut. When a slight force is needed to turn spool, tension is set. Do not overtighten.

  4. Reinstall canister cover.

    Reinstall canister cover. Thread welding wire.

  5. Turn off unit.

    Turn off unit. Reinstall top cover.

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