MIG Tungsten Carbide Feeder

Postalloy® DURAMAX vibratory feeder is an automated hardfacing system used to deliver tungsten carbide particles into a molten weld puddle through the (GMAW) Gas Metal Arc Welding process.

Included in this system:

  • Vibratory Hopper / Feeder Assembly
  • Multifunction Control Box
  • Heat Resistant Feed Tube
  • Dispensing Hose
  • Torch Mount Bracket
  • Dispensing Nozzle
  • Current Sensing Reed Switch
  • Foot Pedal (option available upon request)
  • 110 Volt / 220 Volt (options available)


Product Type


  • Grouser bars
  • Scrapper Blades

Weld Deposit Properties

70Rc - 75Rc

Welding Parameters

Current Type:

Volts Amps Diameter Gas
26-28 170-220 .045" (1.22mm) Ar/O2
29-31 170-220 1/16" (1.6mm) Ar/O2

Welding Procedure:

Power is supplied to the system via 110 or 220 volts depending which option is purchased. The Interconnecting cable connects the control box with the main hopper feeder. The POWER SWITCH powers the control box and vibratory motor on and off. The FLOW RATE DIAL controls the amount of carbide the feeder supplies. The higher the number, the higher the feed rate. A typical setting is somewhere between 3 and 5.

The MAIN POWER toggle switch turns the Control Box on. The BYPASS switch changes the MODE between Manual (MAN.) and Automatic (AUTO). On MAN. the feeder will be activated, and the carbide will flow until the MAIN POWER toggle or BYPASS switch is turned off. Moving the BYPASS switch to the ON position activates the switch circuit which enables the use of a foot pedal or reed switch to turn the vibratory feeder on and off. A foot pedal and reed switch are included as part of the system package. The reed switch is a current sensing switch which can be attached to the welding ground lead, and automatically turns the feeder on and off when you start and stop welding. The reed switch must be mounted 90 degrees across either weld cable using electrical tape. DO NOT mount the reed switch parallel with the weld cable, current will not be detected.

Packaging Options