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


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

Power Specifications

Protection Class IP44

Input Voltage

Voltage 42 V

Welding Output

Duty Cycle Output Current
60 % 500 A
100 % 400 A
35 % 630 A


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

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.)


Weight 16.7 kg (36.8 lb)

Part Numbers and Accessories

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Part Numbers : Robust Feed Pulse/U6
Robust Feed Pulse Air-cooled Tweco 4 (push pull capable, gas flow meter+heater) 0445800893
Robust Feed U6 Air-cooled Tweco 4 (push pull capable, gas flow meter+heater) )r 0445800890
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

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