Agrofrost NV products

During the last 15 years, the Frostbuster has proven to be very effective and very reliable. The F501 is already the third generation of the Frostbuster. It’s are most powerful machine. The most important improvements, compared to the previous generation (F401), are: New pulse burner with burner controller and ionization sensor, which makes it the safest burner used in agriculture. The F501 can hold 8 or 10 gas bottles, so it has a bigger autonomy, up to 10 hours. Now also available with 340 kg drum. The burner starts automatically, depending on the RPM of the fan: if a certain speed level (RPM of fan) is exceeded, the burner will start automatically. When the speed drops back below this level, the burner will be switched off. Gear box with overrunning clutch. The temperature can be adjusted from the control box in the tractor’s cabine (option). The F501 can also be equipped with a drum that can contain 340 kg of gas.

In many countries, farmers do not have tractors of 65 hp or more. To help these farmers, we decided to develop a new trailed machines, that require less horsepower. This machine can be run with tractors from 35 HP.

These machines have a 2-speed gear box. On the lower speed, less horsepower is needed. Of course, the protected area will be smaller. To have most weight as close to the tractor as possible, the fan is mounted vertically and two gas bottles are put in front of the fan.

The FrostGuard Revolution is our top model. It was introduced on the market in 2016. It is smaller and lighter than the previous model and therefore from the introduction particularly popular. It’s completely closed with doors on all sides. All doors and the roof are insulated, to prevent condensation and to reduce the noise. The Revolution can be equipped with an Auto Start System: you only need to set the temperature at which the machine should start and done.

Although the Basic is an economic model, we have not cut back on safety and quality. Because of the lower weight and the 3 wheels, it can easily be put in place. It can be setup in the field with 3 bottle holders mounted on the machine, it can be connected to a 500 kg tank or it can be connected to a container that holds 5 or 6 gas bottles. The Basic fits into this container which makes it easy to transport or store it. It can’t be equipped with an Auto Start System and, unlike the Revolution, it ‘s not completely closed with doors.

Also new in our program are the Mobile Wind Machines. Possibility to add several burners. Our propeller is the most powerful on the market and produces a lot more air. (see Fan Blades). The tower can be set up and laid down hydraulically. To put it up and down, the drivelines do not need to be disconnected. No permissions required. Auto Start available. Coverage up to 4 hectares. Also available for tractor’s PTO.

If we look at the excisting burners on the market, we notice several important disadvantages: there is only 1 burner that ejects hot air into the air at 1 point. This means that most of the time, the heated air is not in the center of the air stream of the fan. Therefore, more than 50 % of the energy is lost. So the efficiency is very poor. the burners run on diesel oil, so they are very environmentally unfriendly. The consumption is very high (up to 130 l/hour) so very expensive to run. Our new burner is much more efficient, it’s consumption is much lower and it runs on propane gas. Instead of using one big burner, we use separate smaller burner units that our placed around the tower.

Fans are balanced in both length and width to eliminate vibration and provide a long life.

This winter, we have been working very hard to come to a ‘more or less’ final version of this machine. The differences and progress are huge. We have developed a small unit, containing a patented burner and a new patented fan, which is powered by a hydraulic motor. The fan blows most air vertically down to the ground, but part of the air is also blown to the side, in order to kill all the weeds close to the trees or vines.

No matter what kind of frost protection you use, one thing is absolutely essential for all systems: you must start in time. One of the main causes of frost damage is that protection systems are being launched too late.