The FireMax FML Series boilers are high-capacity hybrid steam boilers combining water tube furnace technology with smoke tube heat recovery, specifically designed for industries requiring large and stable steam production. The external furnace configuration allows efficient combustion of a wide variety of solid fuels while protecting the main boiler shell from direct flame exposure. This hybrid design provides the combined advantages of water tube boilers—rapid heat absorption in the furnace—and smoke tube boilers—large water holding capacity and stable steam output.

The combustion process begins in the external water-cooled membrane wall furnace, where solid fuels such as coal, rice husk, bagasse, wood chips, lignite, and other biomass materials are burned. The furnace walls consist of closely spaced water tubes welded together to form membrane panels, which absorb intense radiant heat directly from the combustion chamber. This radiant heat transfer rapidly converts circulating water into steam within the water wall tubes while simultaneously maintaining stable furnace temperatures and improving overall combustion efficiency.

After the primary radiant heat transfer stage, the hot flue gases enter the smoke tube boiler shell, where they pass through two additional banks of fire tubes. These second and third passes enable efficient convective heat transfer from the flue gases to the water contained within the boiler shell. The large steam-water interface area inside the shell ensures stable steam generation and allows the boiler to deliver high-quality steam with dryness levels approaching 98%, even during fluctuating load conditions commonly encountered in industrial processes.

Avlon’s FireMax FML Series boilers are engineered with advanced fabrication techniques, precision membrane wall construction, and optional automation systems including automatic ash handling, automatic ignition systems, and online tube cleaning mechanisms. These features ensure reliable long-term operation while reducing operator workload and maintenance requirements. Designed in compliance with industrial boiler safety standards and Philippine regulatory requirements, the FireMax FML Series provides industries with a durable, fuel-flexible, and high-capacity steam generation system capable of supporting continuous and demanding process operations.