730mm Commercial Whirlybirds

Features- 

•Aluminium Reinforced Bearing Housing    

BigBird Ventilators feature a aluminium reinforced bearing housing. This provides superior strength and effortless working action. Solid 12mm stainless steel shaft supports the rotor head. Incorporating wind powered exhaust fan. 

•All Aluminium, Anticorrosive Construction (Grade 5005 H34)

 Be it rain or shine, BigBird aluminium construction will remain rust-free and it requires no maintenance. 

•Silent Operation

Using free wind energy, BigBird operates quietly, making you unaware of its presence. Designed in Australia for Australian conditions. 

•Turns with the Slightest Breeze    

All it takes to turn your BigBird is a slight breeze. Yet, it can withstand wind velocity of 193km/h. The exhaust fan ensures increased exhaust capacity. 

•Steel Ball Bearings Work Indefinitely    

BigBird rotates on two precision steel ball bearings which are individually sealed and lubricated to work for a longer life. 

•Zincalume Custom pitch bases  

Custom built Zincalume bases to suit any commerical type/pitched roofs 

•Cyclone Tested    

Passed Category 2 cyclone test from James Cook University in Queensland Australia 

Extra’s (Can be purchased at an extra cost)- 

•Powder Coated Colour Range Available    

BigBird is available in most Colourbond colours.