HVLS Ceiling Fan
Industrial Ceiling Fan
A direct-drive IE5 fan that covers up to 1,700 m2 of high-bay floor on 1.5 kW, with no gearbox and no oil change for the life of the installation.
Ventilation for Dairy Barns Poultry Houses and Greenhouses
The large HVLS fan was originally invented to ventilate and cool livestock, and dairy farming is still where the mechanism is easiest to see. Large-diameter blades turning slowly form a three-dimensional circulating airflow that covers the whole barn, similar to natural wind, which helps the animals dissipate heat.
Industry Pain Points
What Goes Wrong Without Air Movement
1
Heat stress cuts yield directly
In hot weather dairy cows lose appetite, and with flies, mosquitoes and gadflies on top of that, reproductive capacity and milk production both fall substantially.
2
Poor ventilation spreads disease through the herd
In wet weather mosquitoes multiply, ventilation is poor, infection spreads and mortality rises. In a herd, disease spreads rapidly and late treatment brings large losses.
3
Manure gases damage animals and staff
A poorly ventilated cowshed lets a large volume of manure volatilise into toxic gas, which harms both the cattle and the people working with them.
4
Young and light birds cannot take a direct draught
Ducks in particular cannot be blown directly, and certainly not on the belly. High-speed direct blowing is unsuitable, which rules out conventional fans.
Customer Requirements
What This Industry Asks For
- Wide slow airflow rather than a directed jet, so young stock is not blown directly
- Continuous air exchange to move bacteria, mould and manure gas out of the building
- Equipment that survives humidity, dust and washdown
- Cooling that works where air conditioning is simply not an option
Send the building and the duty rather than a fan model. In this
industry the constraint is almost never the fan itself, it is the structure, the
obstructions and the supply on site.
Typical Applications
Where the Fans Actually Go
Recommended Products
The Products That Fit This Industry
HVLS Ceiling Fan
Wall Fan
Industrial Exhaust Cooling Fan
One-piece formed housing with extra-thick zinc coating, automatic shutters and a bottom drain, for negative-pressure ventilation in hot, humid and smelly buildings.
HVLS Floor Fan
Big Movable Fan
A wheeled HVLS fan that throws air up to 28 m in open space, for bays where nothing can be hung from the roof and the cooling has to follow the work.
High Temperature Axial Fan
CRF Diagonal Grain Drying Fan
A patented diagonal flow design that cuts 40 to 50 minutes off a 15 T drying run and drops the noise from over 110 dB to within 85 dB.
How We Deliver
From Your Drawing to a Container
1
Describe the house, the stock and the climate
Building length, width and eaves height, the animal type and density, and whether the sides are open or closed. Those four things set the whole design.
2
Decide circulation, exchange or both
Ceiling fans circulate; wall exhaust fans exchange. Most livestock buildings need both, and the balance depends on how enclosed the house is.
3
Confirm the electrical supply
Farm supplies vary widely. The motors are wound for the voltage, phase and frequency on site.
4
Plan the mounting against the structure
Barn roof structures differ from industrial ones. Send photographs of the purlins or trusses and the mounting is detailed against them.
References
Installations in This Sector
Project reference
Dairy Barn Ventilation
A barn with appropriate temperature, clean dry bedding conditions and visibly fewer insects on the animals, achieved with...
Questions
Questions From This Industry
No, and that is the point of the low-speed design. A large amount of airflow is generated by the slow rotation of a very large blade set, which simulates a natural breeze of two to three levels and gently reaches the animals rather than blowing them directly.
The airflow drives airflow exchange with fresh outdoor air through doors, windows or the roof, which reduces bacteria in the air. It also drives off mosquitoes and moves out the harmful gases produced by bacteria, mould and faeces.
For growing pigs in summer, the guidance we work to is holding the house below 28 C after ventilation cooling, while discharging the dirty air. Window screens to keep mosquitoes out reduce the probability of insect-borne disease at the same time.
In an open-sided barn, ceiling fans usually carry the job. In an enclosed house, wall exhaust fans running negative pressure are essential and the ceiling fans work alongside them. Send the building details and we will say which applies.
The wall exhaust fans use a one-piece formed housing with an extra-thick zinc coating and a bottom drain, which is specifically designed for barn and greenhouse conditions. Clean the shutters on a schedule so they keep closing fully.
Air Movement Designed for Your Building
Building dimensions, clear height, obstructions and grid voltage. Four facts and we can return a layout.