Jukka Air-Mixer is the largest mass produced ceiling fan in Europe and in Finland.
The cows will enjoy the barn through summer and winter.
The fan rotors come in number of diameters between 4-8 metres. With the help of an electric motor, gear box and frequency transformer the rotor can be rotated anywhere between 0-100 rpm. This is how the 5,6 metre long rotor needs only 400 W power consumption for 50 rpm speed. The air, however, moves 5900 cubic metres per minute. The small power consumption is based on the fine aerodynamics of the blades. You can give the frequency transformer the usual single-gear power 240 V, and the frequency transformer will convert the voltage suitable to fit a three-gear motor. The unit is virtually silent; the faint sound of the device fades into the background noise of the barn. The machine makes a smooth air flow in a large area with circulating the barn air effectively, making temperature stratification impossible.The air flow brings a nice cooling sensation to the animals and their carers during the warm summer season.
Flies and small insects avoid windy places and facilities. The surroundings of milking parlours heat up during summer months and the animals are not happy about going into hot places. When the fan has been installed in a way so that the effect reaches all the way up to the milking parlour, it makes the milking parlour a comfortable place for the cows to go in for milking.Fan in operation at the Mustonen barn.
The sound of the fan does not stand out from the background noise.
Large cattle sheds may require more than one unit in order to have effective ventilation throughout the barn.
The ventilation effect of the fan extends to approx. 20 metres radius of the rotor. Jukka Air-Mixer does not, however, raise any storms in the barn, so there's no need to worry about dust rising up with the flow. Alternatively, you can operate the Jukka Air-Mixer on a slower mode. Thus the power consumption can fall all the way down to below 200 W, without compromising the pleasant air flow. Not many devices can perform as well as this one - the rotor speed of 50 rpm moves 6 tonnes of air every minute.Even the smallest air flow feels refreshing and relieving in industrial facilities - especially when the weather is hot or you have to wear heavy protective clothing.
In cold temperatures, temperature stratification is very common in industrial facilities. By mixing hot air at the lower levels you can save a significant amount of money in heating costs, on top of the low consumption of Jukka Air-Mixer.Testing the fan.
Testing a 5.6 meter fan.