Air transport fan for filter systems in wood processing
WUN design for filter systems in wood processing
Our WUN model in a horizontal design is used where robust air transport and reliable backflow prevention are required – e.g. in wood processing.
Thanks to the integrated self-closing check valve between the underpressure and overpressure chambers, this fan design is particularly suitable for direct installation in underpressure filter systems.
The built-in high-performance impeller with backward-curved blades measures 630 mm in diameter and is driven by a 2-pole flange motor with 37 kW power.
At a medium temperature of 20°C, it achieves a volume flow of 23,550 m³/h and a pressure of 4,170 Pa—ideal for applications with heavy dust accumulation or high particle loads.
The design is additionally equipped with a built-in suction nozzle and is designed for heavy-duty ventilation operation.
ZENNER fans – quality from the Ore Mountains for demanding filter technology and wood processing.
Made in Germany.









