Secondary fans

Secondary fans, also known as auxiliary fans, play an important role in underground mine ventilation. They are designed to deliver clean air to the working faces, ensuring the safety and well-being of workers in hard-to-reach areas. These fans are installed inside the mine and are smaller in size compared to the main exhaust fans, minimizing obstruction in the galleries.

They are typically mounted on the mine roof and connected to ducts that transport fresh air to the end of the gallery where the working faces are located. In turn, this airflow pushes the contaminated air out of the working area into the main galleries, where it is later “extracted” by the main ventilation system. This is called a “dead-end” ventilation system, where there is only one inlet and outlet. This method ensures the formation of a continuous stream of fresh air, essential for efficient ventilation in confined environments.

To ensure efficiency, the fans must be axial, compact, extremely robust, and capable of operating at high pressures.

FanTR provides high-pressure fans capable of withstanding up to 6,600 Pa (27 inW). They are manufactured with composite blades and reinforced casings to resist impacts from trucks and machinery, making our products extremely durable and reliable. In addition, they feature reduced noise emission.

FanTR fans can also be equipped with automatic lubrication systems, Bluetooth vibration sensors, and aerodynamic inlets, extending operation without the need for operator intervention.