Liquid-fuel HVOF thermal spray gun (high velocity oxy fuel)
WokaStar 640 Sulzer Metco

The Sulzer Metco WokaStar® spray guns liquid-fuel for HVOF incorporate advanced design features for superior performance and coating quality.
Using economical kerosene fuel, WokaStar® guns develop combustion chamber pressures that are 15% - 20% greater than conventional liquid-fuel HVOF spray guns.
An improved burner configuration with higher operating pressures and gas flows results in cleaner, denser and harder coatings for better wear resistance, corrosion resistance and dimensional restoration. Coatings can be very thick and can exhibit favorable compressive stresses that enhance bond and performance in service.
The unique design of the WokaStar® series guns will allow the use of economical lower flow settings which will reduce oxygen and kerosene costs by 10% over conventional liquid-fuel guns while also reducing cooling requirements by 30%. Coatings consistent with the WokaStar® series guns can be obtained at these economy settings.