HVAF High Velocity Air Fuel Surface Grit Blasting Coating Application Applied Coating
G4™ Gravimetric Powder Feeder

The G4™ is a gravimetric powder feeder is designed for use with thermal spray processes such as HVOF, HVAF, Plasma, Cold Spray, Laser Cladding, and other industrial applications.

The G4™ automatically maintains the feed rate, which can be set in standard or customary units. The patent pending feeding mechanism contains no wearing seals and provides consistent, smooth powder flow, that does not deteriorate with time.

  • Automatically maintains the feed rate that can be set in grams per second, grams per minute, kg per hour, or lb per hour.
  • Patent pending metering blade mechanism provides smooth, continuous powder flow.
  • Contains no wearing seals and does not require regular replacement of seals or other parts to maintain proper operation.
  • Touchscreen interface
  • Instant start/stop, no powder "after flow"
  • Not sensitive to back-pressure
  • Optional carrier gas mass flow controllers
  • Optional analog IO or RS232 remote control
G4™ Powder Feeder
Flow Rate1 - 600 g/min
Operating Pressure0 - 150 PSI (G4 model)
0 - 500 PSI (HP-G4 model)
Hopper Capacity5L, 10L
Powder Size0 - 200 µm standard, custom calibration available
Carrier Gas OptionsAir, Nitrogen, Argon, other non-flammable gases

  • Thermal Spray
  • HVOF
  • HVAF
  • Plasma
  • Cold Spray
  • Laser Cladding
  • Industrial Applications