Ovens and high temperature
Reliable air movement in thermal processes
We select and adapt fans to supply, recirculate or extract air in demanding environments and withstand extremely high temperatures, such as ovens, dryers and heat-shrink tunnels, ensuring precise control of air and temperature.

Thermal applications
Solutions to generate, distribute and extract hot air

The fan's behavior must match the thermal cycle, the duty regime and the way air circulates through the equipment.
Industrial ovens
Air supply, recirculation or extraction to maintain the airflow required by the process.
Heat-shrink equipment
Uniform distribution of hot air in tunnels and process equipment.
Curing and drying
Control of air movement during drying, curing or heat treatment cycles.
Technical selection
Four factors that shape the solution
Temperature is essential, but it is not the only parameter that defines a fan for thermal service.
Operating temperature
We assess the nominal temperature, peaks and duration of each cycle.
Airflow and pressure
We adjust the duty point to losses, ductwork and recirculation.
Materials and insulation
We select components compatible with the thermal environment and the fluid.
Mechanical integration
We define orientation, supports, drive and separation of sensitive components.
Product families
Pirox series for thermal applications
A backward-curved, belt-driven centrifugal fan in a plug fan configuration, designed for industrial applications involving hot gas recirculation in thermal processes that require continuous, reliable and safe operation at severe temperatures.

Pirox series
The SDT Air PIROX series is a range of backward-curved plug fan centrifugal fans designed for the continuous recirculation of hot gases in industrial thermal processes. It stands out for its robust construction, rock wool thermal insulation, high-performance self-cleaning impeller and low-maintenance drive.
HHW impeller
Self-cleaning, high-performance reinforced impeller with backward-curved (reaction) blades, made of rolled carbon steel and dynamically balanced to minimize noise and vibration, for solutions subject to high thermal and mechanical demands.
Frequently asked questions
Ventilation for thermal processes
The configuration must always be validated against the actual conditions of the application.
No. We also need the airflow, pressure, cycle duration, air composition, fan location and mounting conditions.
Yes. We can work on the orientation, connections, supports and mechanical configuration to make integration easier.
Industrial ovens, heat-shrink equipment and curing or drying processes, as well as other thermal equipment on a case-by-case basis.
No. The Pirox series is specially designed to withstand demanding conditions in continuous operation.
It is particularly suited to gas recirculation in ovens, boilers, paint booths, dryers, insulated thermal chambers, burners and incinerators...
Rolled carbon steel, heat-resistant paint, C3 finish and impeller with black heat-resistant paint, for structural strength and durability, with high-density rock wool thermal insulation at a density of 145 kg/m³ and a standard wall thickness of 150 mm. Other materials, such as heat-resistant stainless steels, can be used depending on the installation requirements.
Applied engineering