Totally enclosed, highly efficient heavy duty motor with pressure die cast aluminium rotor mounted on two ball bearings. Aerodynamically contoured blades handle maximum air with minimum power consumption. Rigid frame with rubber mountings for silent operation.

Epoxy powder coating with specially pre-treated components for better resistance to corrosion and acid alkali fumes. For more corrosive environment, exhaust fans with chlorinated rubber paints are available, conforming to ISI 2312 -1967 standards.