Robust Feed Pulse/U6


Robust Feed Pulse/U6

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The Robust Feed, with its ergonomic, robust and enclosed design, is the ideal partner whenever portability and durability are key. Equipped with a new precision wire drive system perfect for demanding applications. Additional features include an MMA outlet and integrated flow meter.

Variants include heater and/or push-pull interface, panel options include a direct Pulse panel and a menu based U6 panel. Robust Feed U6/Pulse works with Aristo power sources.



  • Durable, drop-proof housing that withstands demanding applications
  • Great portability with ergonomic handles, 5 lifting points and safe for crane lifting handles
  • Weatherproof, enclosed design that withstands rain from all directions and inside heater ensures the filler metal is kept dry
  • Protected cable connectors and sturdy strain relief for interconnection cable reduces maintenance
  • Works as great in the field as in workshops, on a cart, with or without wheel kit, and other options and accessories


  • Energy
  • Industrial and General Fabrication
  • Mobile Equipment
  • Pressure Vessels
  • Railcars
  • Tank and Vessel Fabrication
  • Transportation
  • Structural Steel Fabrication
  • Marine and Offshore
  • Steel Erectors


Length 675 mm (26.6 in.)
Width 265 mm (10.4 in.)
Height 418 mm (16.5 in.)


Weight 16.7 kg (36.8 lb)

Power Specifications

Protection Class IP44

Wire Feeder Specifications

Max Spool Diameter 300 mm (12 in.)
Wire Feed Speed 0.8-25.0 m/min
Wire Spool Capacity 20 kg
Metal Mild Steel
Wire Diameter 0.6 - 2.0 mm (0.023 - 5/64 in.)
Metal Stainless Steel
Wire Diameter 0.6 - 1.6 mm (0.023 - 1/16 in.)
Metal Cored Wire
Wire Diameter 0.8 - 2.4 mm (0.031 - 3/32 in.)
Metal Aluminium
Wire Diameter 0.8 - 1.6 mm (0.031 - 1/16 in.)

Welding Output

Welding Output 500 A @ 60%
400 A @ 100%
630 A @ 35%

Input Voltage

Voltage 42 V


Standards CE, CSA
Operating Temp -4 to 131 degF (-20 to +55 degC)

Part Numbers and Accessories

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Part Numbers : Robust Feed Pulse/U6
Robust Feed Pulse Air-cooled Tweco (push pull capable, gas flow meter+heater) 0445800893
Robust Feed U6 Air-cooled Tweco (push pull capable, gas flow meter+heater) 0445800890

NOTE: Power Sources, Basic Packages and Ready to Weld Combinations require the customer to supply input power cables. Suggested cable is 4C 8Awg input cable

Accessories : Robust Feed Pulse/U6
Guide Pin Extension Kit ** 0465508880 FIND A DISTRIBUTOR
Liquid Cooling Kit (to upgrade air cooled feeders) 0446123880 FIND A DISTRIBUTOR
Quick Connector Marathon Pac F102440880 FIND A DISTRIBUTOR
Robust Feed Wheel Kit 0446081880 FIND A DISTRIBUTOR
Torch Strain Relief 0446082880 FIND A DISTRIBUTOR
Trolley (Robust Feed/Warrior Feed/Aristo Feed) 0349313450 FIND A DISTRIBUTOR
Trolley Retrofit Kit Robust Feed ✝ 0349313100 FIND A DISTRIBUTOR

** Extension Kit required when Wheel Kit is used in combination with Trolley.

✝ To fit Robust Feed on existing Warrior Trolley 0465510880

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