Miller MIG Machine Support

Millermatic 355

Industrial MIG, pulsed MIG, and flux-cored machine offered with Bernard BTB or XR-Aluma-Pro gun configurations.

MIG (GMAW)Pulsed MIG (GMAW-P)Flux-cored (FCAW) Industrial
Millermatic 355

Processes

MIG (GMAW), Pulsed MIG (GMAW-P), Flux-cored (FCAW)

Welding range

20 - 400 A, 12 - 34 V; XR-Aluma-Pro package listed at 20 - 350 A, 12 - 32 V

Input power

208/240/460/575 V configurations; catalog lists 1-phase and 3-phase configurations by package

Wire feed speed

50 - 800 ipm (1.3 - 20 m/min.)

Weight

99 lb. (45 kg), power source only

Class

Industrial

Machine Packages

Stock numberCatalog packageBuy
907808 With BTB MIG gun Amazon link: Needs verification.
951926 With BTB MIG gun and EZ-Latch single cylinder running gear Amazon link: Needs verification.
951927 With XR-Aluma-Pro gun and EZ-Latch single cylinder running gear Amazon link: Needs verification.

Welding Output and Wire Capacity

Rated output

  • 310 A at 29.5 VDC, 60% duty cycle

Wire capacity

  • Solid steel: .035 - .045 in. (0.9 - 1.2 mm)
  • Stainless: .023 - .045 in. (0.6 - 1.2 mm)
  • Aluminum: .035 - .047 in. (0.9 - 1.2 mm)
  • Flux-cored: .035 - .045 in. (0.9 - 1.2 mm)
  • Metal-core: .045 - .052 in. (1.2 - 1.3 mm)
  • Silicon bronze: .030 - .035 in. (0.8 - 0.9 mm)

Material Capacity

  • Mild steel: 22 ga. (0.8 mm) to 1/2 in. (13 mm)
  • Aluminum: 18 ga. (1.2 mm) to 1/2 in. (13 mm)

Included With This Machine

  • 15 ft. (4.6 m) 300-amp Bernard BTB MIG gun with AccuLock S consumables and .035/.045 in. reversible V-groove drive rolls, or 25 ft. (7.6 m) XR-Aluma-Pro air-cooled push-pull MIG gun with Miller FasTip consumables and .035/.047 in. reversible U-groove drive rolls for aluminum wire
  • 10 ft. (3 m) work cable with clamp
  • 9 ft. (2.7 m) industrial power cord
  • Factory-installed gas solenoid
  • Flow gauge regulator and gas hose for argon or Ar/CO2 mix, extra contact tips, and material thickness gauge

Gun, Consumable, and Accessory Paths

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Dimensions

H: 19.25 in. (489 mm), W: 13.75 in. (349 mm), D: 26.25 in. (667 mm)

Source: Miller Electric 2026 Full-line Catalog, catalog page 8, literature DC/12.95. Product relationships on this page are kept separate from Amazon monetization data. Amazon buy buttons appear only after the product match, manufacturer, package quantity, and compatibility are verified.

Related Part Types

Commonly Replaced Together