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Cows need cooling air to remove heat respired from their lungs. When this heat isn’t removed you have a problem. How big and expensive that problem is depends on your action.

The cow needs cooling, and fast. She needs airspeeds up to 10ms and she needs to immerse herself in windchill. If you have a cyclone system you can achieve this.

For the past two decades, Magdek has developed innovative solutions to help prevent heat stress in cows.


Avoiding Heat Stress

If an animal fails to control her thermal balance, she becomes heat stressed, her feed intake will decline and so will her milk yield.

As the ambient temperature increases above the Upper Critical Temperature, milk yields can fall by as much as 20%.

But heat stress can be avoided. With the use of the TopCool Cyclone Fans, the cow is immersed in a windchill, allowing her to lower her body temperature quickly.

Key Features

  • Can reduce heating and cooling cost up to 50%
  • Corrosion resistant fibreglass housing
  • Heavy-duty pulley and bearing assembly
  • Maintenance free motor
  • Quick-change belt
  • Various mount options available
  • Optional variable frequency drive
  • 6 directional airflow deflectors
  • Balanced heavy-duty corrosion resistant 6 paddle aluminium blade
  • Shipped fully assembled, except for airfoil deflectors

Technical Spec

  • 72˝ Motor is 3 HP or 2.2KW on high and 0.3KW on low 230/460 VAC, AMP 8.2/4.1
  • 300 watts on low
  • Cyclone 72”
  • Blade 72”
  • Quick-change belt
  • Airflow: 82.608 M3/H, 36 CFM/Watt
  • Motor: 3HP, 380V, 50HZ with CE
  • Optional Variable Frequency Drive

What our clients say…

“The Cyclone Fans have resolved our issues with ammonia in the air.”

Mark Stewart, Lockerbie

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Find Your Local Distributor


Magdek Thermal Systems

Lisburn, Northern Ireland
+44 (0) 28 9262 9609


El Lewis

Calfvent Design, UK
+44 7530 720905


Ivor Davies

Cowplan, Bristol
+44 7751 050158

Magdek cow
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We’d love to discuss your unique circumstances and individual needs. Let’s start the conversation!