HVOF – High-Velocity Oxygen Fuel
High-velocity oxygen fuel (HVOF) is a combustion process that creates a pressurized gas stream where an optimized powder feedstock is injected into and accelerated up to supersonic velocities. Maximum process temperatures are considerably lower than the traditional plasma spray process which therefore offers distinct advantages for temperature sensitive materials. Combined with the high velocities, coatings offer superior mechanical properties. The fuels involved can include kerosene, hydrogen, propane, methane, natural gas, and ethanol.
- HVOF Equipment Arzell, Inc. has integrated
JP, JP-5, JP-8, JP5000, JP5120, JP8000, JP8200, DiamondJet, JetKote II, JetKote III, WokaJet, WokaStar, DJ2600, DJ2700, eGun, Nova-A, NOVA-D, MP-50, HV-50, DJC, DJCE, DJFW
HVAF – High-Velocity Air Fuel
High-velocity air fuel (HVAF) is a combustion process, similar to HVOF however, the process utilizes compressed air rather than oxygen as a reactant to combust the fuel. Maximum process temperatures are slightly lower than the HVOF process and the lower oxygen contents typically result in coatings with lower oxidation.
- HVAF Equipment Arzell, Inc. has integrated
M2, M3, C6, AK7, AK6, AK5
Arc Spray – Twin Wire Arc Spray
Arc Spray is an electrical process that utilizes wires as electrodes which are melted on contact and then atomized to create metallic droplets. The process offers the lowest operating costs and highest efficiencies but is restricted to conductive alloys as feedstock materials.
- Arc Equipment Arzell, Inc. has integrated
AT-400, 8830, 8835, 9910, 9935, 9985, BP-400, AWS-400, Flexi Arc, SmartArc, ValuArc
Powder Feeder
Powder feeders are an essential tool for applying coats onto materials. Our powder feeders deliver highly controlled results and offer sophisticated settings.
- Powder Feeder Equipment Arzell, Inc. has integrated
G4, V1, AT-1200, 1264, 1264i, 1264WL, Twin 10, 9MP, 9MPDJ, 5MPE, 5MP-HP, FST-10, FST-20
General thermal spray information
Materials Typically Sprayed
Ni, Co, Cr, W, C, Al, B, Si, Fe, Y, Zr
Gases Used in Processes
Oxygen, Propylene, Propane, Natural gas, Kerosene, Nitrogen, Argon, Helium, Hydrogen, Compressed air
Items that can be sprayed
Mud rotors, Screws, Rolls, Shafts, Rocket nozzles, Gates/Seats, Ball Valves, Buckets Blades, Vanes, Transition pieces/Ducts, Combustion liners, Bearings







