A Belt Driven Fan is the ideal exhaust fan whenever extra high airflow capacity is required. The unique propeller design is self-cleaning and allows the highest efficiency to be reached, features which characterize the high quality and excellent performance. The square fan housing and air conveyor are made of a strong galvanised sheet-steel.

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The 6-blade propeller is statically and dynamically balanced for low noise and low vibration. The propeller is available in stainless steel, galvanised steel and precoated galvanised steel. The v-belt pulley attached to the propeller is made of die-cast aluminium, with reinforced ribs which will increase strength.

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The external fan shutter is made of galvanised steel, which is tightly closed when the fan is not working, preventing any air leakage through the fan.

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The centrifugal system prevents the shutter from being closed by air pressure. The shutter does not have to be cleaned regularly as dust does not affect its opening and closing movement.