Big HVLS  Ceiling Fans for Livestock

Proper air flow is beneficial for the comfort and productivity of livestock. This is why our efficient HVLS Barn ceiling fans keep livestock  more comfortable while saving on your electricity bills.

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Big Fan Features

Low maintenance

Efficient design

Strongest airfoils on the market

Works for summer and winter

Variable Speed Control

Saves Electric

Mounts easily in most building types

Big Fan Benefits

Better performance &#; comfortable animals perform better

Cleaner livestock from drier bedding

Less bedding needed.

Bedded pack areas

reported 75% less bedding needed.

Big Fan Features

Low maintenance

Efficient design

Strongest airfoils on the market

Works for summer and winter

Variable Speed Control

Saves Electric

Mounts easily in most building types

Barn Fan Benefits

Better performance &#; comfortable animals perform better

Cleaner livestock from drier bedding

Save bedding. - Bedded pack areas reported
75% less bedding is needed.

Low electric bills. Slower RPMs in cooler weather dramatically cut electric loss.

HVLS fan recommendations

Many farms have high-volume, low-speed (HVLS) ceiling fans installed in their compost-bedded pack barns, and they appear to perform effectively. When installing fans, ensure adequate clearance underneath for tillage equipment to work at maximum pack depth and that the fan blades have bumper guards if close to the barn trusses. Most compost-bedded pack barns incorporate sprinklers with panel fans over the feed bunk for evaporative cooling and have fans over the pack area.

Sizing HVLS barn fans

Regardless of the type of fans chosen,  spacing is vital to minimize dead spots. The purpose of fans is to achieve air flows of 400-600 feet per minute (5-7 miles per hour) at cow level. HVLS fans have the advantage of covering a bigger area per fan, being more energy efficient, and being able to run at lower speeds during the winter. Even at top speed, they may only achieve the bottom limit of the needed air speed to cool cows. On the other hand, panel fans readily achieve the recommended airspeeds - but the side-to-side spacing required for equal air dispersion necessitates a large number of panel fans.
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If you want to learn more, please visit our website Windmax Power.

Spacing HVLS livestock fans

HVLS fans should be spaced at least 2-2.5 times their diameter. A 20-foot HVLS fan, for example, will span 40-50 feet horizontally and vertically. Some manufacturers may prescribe spacing at 3-4 times the diameter. These recommendations must be revised because they focus on human comfort rather than optimal cow comfort. AmeriWind normally recommends 2 times fan diameter for lactating and dry cows. Heifers, calves, and small animal applications can have the fans spaced at 3x fan diameter. 

First HVLS fans installations.

Large commercial warehouses and production facilities first used high-volume, low-speed (HVLS) fans.  After that, HVLS fans were tested in dairy barns and found to be useful for raising cow comfort levels.

Does HVLS barn ceiling fan direction matter?

Running the HVLS fan in forward or reverse,  changes the outcome. When running forward, it generates a column of air that is directly the same size as the fan diameter and emits a 360-degree wave of air out from the fan that is about 4 feet high. The air travels over the animals, cooling them because the fans are up to 30 feet in diameter.

Reversing HVLS fans can be done to force air upward during cold weather. This will destratify any heat that is stacked along the ceiling and gently circulate it throughout the facility.
Reversing is the easiest with variable-speed control. Maintaining the fan at about 20%.  Using a natural ventilation system in reverse adds the advantage of moving air over the sidewall curtain fabric.  This lowers the chances of moisture accumulation during cold weather.

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Can the big fans run automatically?

HVLS fans run automatically with temperature controllers. The variable speed operation allows use in hot or cooler temperatures. The fans start at a low temperature and adjust their speed as the building warms. This is particularly useful in the spring and fall when there is a significant 24-hour variation in the outside temperature.

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Compared to small high-speed fans, the operating cost of HVLS fans will be reduced.  Because they cover a bigger area and use a variable motor. Local electricity authorities are encouraging the purchase of HVLS fans in various parts of North America by providing sizable discounts.

Birds and Big Fans

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Birds are less inclined to enter the barn since they can see the slow-moving blades. However, birds can continue to roost and nest if perch points are made where the fans are installed.

Big Barn fan Design Factors

The fan blades should be higher than the sidewall curtain openings in freestall dairy barns. The blade may bend under windy circumstances. This is why we developed the FanChief to turn off the fans when windy. The diameter of HVLS fans normally ranges from 8 feet to 24 feet, with the smaller models proving to be more resilient to wind damage.

When placing fans within a barn, keep in mind that cows will often concentrate in locations like scraping alleyways where the air is coolest, making it difficult for them to move around and cause obstructions.

Avoid putting a fan just under a light fixture. It can make a strobe light effect.  

Speak with a ventilation consultant, simply by calling us.  Get help determining the optimal configuration and size of HVLS fans for both you and your cows

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• Increasing animal productivity is key to boosting business profitability in agriculture. We spoke with Shukhrat Narmetov, the project manager at Vetromaster, to discover how the use of big ceiling fans can enhance productivity and profits, while also introducing the crucial concept of THI (Temperature and Humidity Index).

Q: Where are big ceiling fans used in agriculture, and why are they necessary?

A: Big ceiling fans, which are also known as High Volume Low Speed (HVLS) fans, find their primary application in dairy farming. They have been proven to enhance profitability by creating comfortable conditions for animals. Cows often experience heat stress in high temperatures, leading to decreased milk production due to reduced feed intake. HVLS fans can mitigate this, resulting in an average milk yield increase up to 20%, or 4-8 liters per day. Additionally, they help prevent heat-related health issues and improve reproductive capacity.

Q: How do fans affect the indoor environment?                                 

A: HVLS fans are increasingly popular in dairy farms because they improve the microclimate. They reduce ammonia vapor concentration near the floor, which can negatively impact animal health and productivity. These fans are also almost silent, ensuring they don&#;t cause noise stress in animals. They are highly economical, with low power consumption.

Q: What types of HVLS fans are available, and how do you choose the right size?

A: Vetromaster offers HVLS fans in various diameters, ranging from 3 to 7 meters. The choice of fan size depends on the room&#;s parameters and the desired air circulation. Generally, larger fans are more efficient, covering a larger area.Fans can be adjusted for speed and direction to ensure optimal performance.

Q: Can you tell us about fan control, especially automatic modes and THI?

A: Vetromaster employs a unique fan control system, which not only automates fan operation but also takes into account the Temperature and Humidity Index (THI). This index is a key factor in determining animal comfort. The system calculates THI and selects an operating mode that proactively prevents heat stress, addressing the cause rather than the consequence. You can also program the fans to operate at specific settings by time or day of the week. Manual control is available for those who prefer it.

Q: Do you offer calculations for specific facilities?

A: We recommend trying out our fans through a test drive program. We install a fan for 14 days so that companies can assess its efficiency before making a decision.

Q: What is the geographical reach of your company?

A: Currently, we have a strong presence in Russia, Belarus, Uzbekistan, and Kazakhstan. We have also expanded into the UAE market, with plans to serve the Gulf region. Our comprehensive services include delivery, installation, warranty, and maintenance. Our HVLS fans are low-maintenance and come with a warranty of up to 5 years, with a lifespan exceeding a decade. In conclusion, Vetromaster&#;s HVLS fans are a valuable tool in improving animal productivity and farm profitability by creating a comfortable and efficient microclimate in agricultural settings. With the added benefit of THI control, these fans are at the forefront of modern farming technology. For more information :-https://rotor.ae

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