BD-Box line consists of a double inlet double width fan belt coupled to the motor, housed in a cabinet lined with sound proofing material. These fans are designed to exhaust or intake air in residential, commercial and industrial installations (offices, pools, shops, restaurants engine rooms, electrical devices) requiring silent operation and high capacities.

The possibility to act on the rpm and a wider range of fans consent a more flexible use in many different applications than the direct coupled series (DC-Box).

This line consists of 9 sizes from 500 up to 32.000 mc/h.

The main characteristics of this line are: sturdy construction, inside insulation of acoustic material, the motor variable pulley, fan with supporting frame, flexible connection between the fan and the insulation cabinet, motor placed on a base frame in arrangemet 12.