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410mm Commercial Whirlybirds

Contact us on 07 3255 9777

Product Description

Features- 

Nylon Reinforced Bearing Housing    

BigBird Ventilators feature a nylon fiberglass reinforced bearing housing. This provides superior strength and effortless working action. Solid 12mm aluminium 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. 

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. 

Eave Vent    

The eave vent will facilitate the removal of hot and moist air from attic space. 

Specifications 

Model 

300mm 

 360mm

410mm

Throat size 

300mm  

(12") 

360mm (14") 

410mm (16")  

No. blades 

20 

23 

28 

Steel bearing 

Aluminium shaft 

10mm 

12mm 

12mm 

Stainless steel shaft 

Weight approx. 

2 kg 

3kg 

4kg 

Varipitch base fits roofs 1° to 45° 

one 

one 

one 

One unit vents 

100m2 

140m2 

180m2 

Area of attic space 

1100 sq. ft. 

1500 sq. ft. 

1950 sq. ft. 

Exhaust Fan assisted 

yes 

yes 

yes

 

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