The fan is directly driven and of axial casted fan. The fan blades are of cast aluminium and completely free from problems encountered with belt and gear drives. The fan is statically and dynamically balanced for low vibration and high efficiency. This ensures energy savings and generate maximum air flow.
Axial Flow (propeller type) fans are used in towers. Generally, propeller fans are used in induced draft towers, fans are found in forced draft towers. Depending upon their size, the type of propeller fans used is either fixed or variable pitch. A fan with non-automatic adjustable pitch blades can be used over a wide kW range because the fan can be adjusted to deliver the desired air flow at the lowest power consumption.