An aerodynamically designed axial flow type fan is specifically designed for cooling tower use. A well balanced fan delivers large air volume at high efficiency and low noise level. The fan blades and hub are of cast aluminium alloy (LM-6). The direct driven fan with variable pitched blades . Fans are coupled to slow speed weather proof motor in IP-55 construction. The mechanical equipment is so designed that maintenance of motor and fan blades can easily be carried out without removal of the entire system.