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Miller MIG Machine Support

Millermatic 355

Industrial MIG, pulsed MIG, and flux-cored machine with 3- or 1-phase input, 310 A rated output, four-drive-roll wire drive, Bernard BTB MIG gun package, and XR-Aluma-Pro aluminum package path.

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 in 3-phase or 1-phase 460/575 V; 20 - 350 A, 12 - 32 V in 1-phase 208/240 V

Input power

3- or 1-phase, 208/240/460/575 V, 50/60 Hz

Wire feed speed

50 - 800 ipm (1.3 - 20.3 m/min.)

Weight

99 lb. (45 kg) machine only; 163 lb. (74 kg) with running gear

Class

Industrial

Feature Highlights

7-Inch Color LCD Setup

Large interface with quick-access Auto-Set and Pulse buttons, soft keys, setup images, and full troubleshooting descriptions.

Auto-Set Elite

Predefined MIG and pulsed MIG settings let operators select wire, gas, wire diameter, and material thickness, then fine-tune as needed.

Program Mode And Trigger Select

Favorite weld settings can be saved and recalled, and trigger program select lets the operator change programs from the gun trigger.

Pulsed MIG Capability

Pulsed MIG support reduces heat input and spatter, improving control on aluminum, stainless, thin material, and out-of-position work.

Input Power Versatility

Single- or three-phase input power covers North American 208, 240, 460, and 575 V power, with a wire-drive-compartment input voltage switch.

Four-Drive-Roll System

Heavy-duty aluminum four-drive-roll wire drive supports the higher-output Millermatic 355 platform.

Machine Packages

Stock numberCatalog package
907808 3- or 1-phase, 208/240/460/575 V, 50/60 Hz machine only
951926 MIG gun package with Bernard BTB gun and EZ-Latch single cylinder running gear
951927 Aluma-Pro gun package with XR-Aluma-Pro push-pull gun and EZ-Latch single cylinder running gear

Compatible Accessories

EZ-Latch Single Cylinder Running Gear

301449 Running gear with single cylinder rack and storage compartment; latches secure the machine to the cart.

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EZ-Latch Dual Cylinder Running Gear

951769 Dual cylinder running gear with elevated gun and cable rack for cable storage.

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EZ-Latch Dual Cylinder Rack with Elevated Gun and Cable Rack

301481 Converts the EZ-Latch single cylinder running gear into a dual cylinder rack; included with the EZ-Latch dual cylinder running gear.

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Demo Cable Kit

289696 Powers the front display through USB using the supplied 115 V adapter for training or showroom demonstrations.

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Millermatic 355 V-Grooved Drive Roll Kits

087132 / 046780 / 046781 / 227061 / 046782 / 046783 Four-drive-roll hard-wire kits for .023, .030, .035, .035/.045 reversible, .045, and .052 in. wire.

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Millermatic 355 U-Grooved Drive Roll Kits

044750 / 046785 Four-drive-roll aluminum wire kits for .035 and .047 in. wire.

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Millermatic 355 V-Knurled Drive Roll Kits

046792 / 046793 / 046794 Four-drive-roll flux-cored or difficult-to-feed wire kits for .035, .045, and .052 in. wire.

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Compatible Guns / Torches

Bernard BTB Gun 300 A with AccuLock S Consumables

Q3015AE4VMA 15 ft. 300-amp Bernard BTB MIG gun path for .035 in. wire, listed with the Millermatic 355 MIG gun package.

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XR-Aluma-Pro Push-Pull Guns

301568 / 301569 15 ft. and 25 ft. air-cooled gooseneck-style push-pull guns for .030 - .047 in. aluminum wire, rated 300 A at 100 percent duty cycle.

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Spoolmate 200 Spool Gun

300497 20 ft. spool gun rated 160 A at 60 percent duty cycle for .030 - .035 in. aluminum wire and .023 - .035 in. steel/stainless wire.

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Spoolmatic 15A Spool Gun

195156 15 ft. air-cooled one-pound aluminum spool gun rated 200 A at 100 percent duty cycle.

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Spoolmatic 30A Spool Gun

130831 30 ft. air-cooled one-pound aluminum spool gun rated 200 A at 100 percent duty cycle.

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Optional Spoolmate 200 Head Tubes

300591 / 300592 / 243385 45-degree head tube, 9 in. extension head tube, and 5 in. head tube options for Spoolmate 200.

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XR-Aluma-Pro Lite Push-Pull Gun

300948 25 ft. air-cooled gooseneck-style push-pull gun for .030 - .047 in. aluminum wire, rated 175 A at 60 percent duty cycle.

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XR-Pistol-Pro Push-Pull Guns

300782 / 300783 15 ft. and 25 ft. air-cooled pistol-grip push-pull guns for .030 - .047 in. aluminum wire, rated 200 A at 100 percent duty cycle.

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Push-Pull Aluminum Drive Roll and Accessory Kits

195311 / 195313 Accessory kits for .035 and .047 in. aluminum that include Millermatic U-grooved drive rolls, nylon wire guides, and contact tips.

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Full machine details

Welding 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

  • Power source with 9 ft. (2.7 m) industrial power cord
  • 15 ft. (4.6 m) 300-amp Bernard BTB MIG gun with Bernard AccuLock S consumables for .035/.045 in. wire on packages 907808 and 951926
  • 25 ft. (7.6 m) XR-Aluma-Pro air-cooled push-pull MIG gun with Miller FasTip consumables for .035/.047 in. aluminum wire on package 951927
  • 10 ft. (3 m) work cable with clamp and 50 mm Dinse-style connector
  • Flow gauge regulator and gas hose for argon or Ar/CO2 mix
  • .035/.045 in. reversible drive rolls on Bernard BTB packages or .035/.047 in. reversible U-grooved drive rolls on the Aluma-Pro package
  • Extra contact tips
  • Material thickness gauge
  • EZ-Latch single cylinder running gear and chain to secure gas cylinder included with packages 951926 and 951927

Dimensions

Machine only: H: 19.25 in. (489 mm), W: 13.75 in. (349 mm), D: 26.25 in. (667 mm). With running gear: H: 32 in. (813 mm), W: 13.75 in. (349 mm), D: 45 in. (1143 mm)

Source: Miller Electric Millermatic 355 Spec Sheet, Issued Aug. 2023, index 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.

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