10 August 2018

Air Filter Blaster: Perhaps, the best tool to remove dust

One of the most repeated maintenance tasks in summer is the cleaning of engine air filters of tractors, combines, etc. In summer, without any doubt, working on stubble or fallow fields with chissel or disc harrow creates hostile environments,  fact that generates a lot of dust as you can see in the photos. From out blog, we invite the manufacturers of tractors and self-propelled machinery to make their tests and trials in our area where they will surely find extreme situations of dust, dryness and heat.

These manually tasks take a long time as we need to clean the filter every working day. Even if the tractor is used intensively, it must be cleaned several times a day. In order to improve the technique, we looked for a tool on the Internet that could help us to make this task much easier and, especially, much simpler. It was on the www.armadis.nl website (they are the main distributor for the european market) that we found the Air Filter Blaster. This tool consists in a cleaning cyclone that works with compressed air. The air compressor has to work at a minimum pressure of 6 bar, the recommended preassure is between 8 and 10 bar. Definitely, having a compressor with a large tank helps to obtain a good performance. In our case we use a compressor with a 100 litre tank and the Air Filter Blaster works really fine.

The tool consists of a rotor (the main part) that distributes the air inside the filter (cylindrical or cartridge filters). This rotor must be the size of the filters to be cleaned, so there are 3", 4.5", 6" and 9" rotors available (they are interchangeable). As you can see in the video, the task of cleaning the filter is concluded in a few seconds and in a very simple way.

Versión en español.



26 July 2018

Long baling campaign: Tyres and task details

We would like to start this article with the expression "details are very important", in this way, a good selection of tyres is really key choice for big balers. One of the most common summer tasks in Spain is baling cereal straw. There is a wide variety of opinions among farmers; on the one hand those who choose to chop the straw to provide organic matter to the soil for next season and on the other hand, those who choose the baling option. These two options have advantages and disadvantages but from our experience the second option is better for us because we live in a dry area where there isn't rain while next sowing campaign sometimes. With these climatic conditions and straw on the stubble, it is very difficult to prepare a good seed bed when practicing traditional agriculture.

Big baler is an implement that works in extreme hot conditions in Spain and during long baling days. It is a trailed implement and its speed limit is 25 km/h... so its tyres are designed for that. In our pictures, you can see the Rosado Bros Company’s New Holland BigBaler 890. This big baler can make 80x90x230 cm bales of about 300 kg and uses four knotters. In our village, they work about 10,000 hectares with their two New Holland BigBaler. We have to mention that they spend about 1,000 rolls of rope per campaign. According to their planning, their baler will be at peak performance, with few problems, about for 5 years (just over 100,000 bales). After that, they have to buy another one if they don't want to do expensive maintenance annually (the purchase of this implement is a large investment of around €130,000).

As they work a large area, they have to spend a lot of time on road. As a result, the working campaign is reduced and therefore a lot of stress is generated, so road speeds are usually high (tractors are high-power and can therefore go at 45 km/h without problems). With these premises, the tyre tends to suffer too much. The New Holland Bigbaler 890 has a tandem axle so it is an advantage and helps a lot to keep the tyre. Since they use the Vredestein Flotation+ tyre (500/50-17 IMP 149 A8) they have noticed a big improvement. The tires you can see in our pictures are those ones that come from the factory and this is their second campaign. They think they'll finish it off without any tyre problems. The Flotation+ tyre has a sophisticated carcass construction, with a large contact area and a good height/width ratio. Undoubtedly, this is a good option for this type of machinery.

Maybe, the best choice for this type of baler is the Vredestein Flotation TRAC 520/50R17 IPM 141 D. This is a radial tyre that undoubtedly gives much better performance when it is used for transportation but it has has disadvantages for working as the radial is more square and fits the ground worse while the conventional is more oval and fits better. On the other hand, it is necessary to take into account the tyre pressure, which can change for roads around 3.2 bar and for work at 2.5 bar. The farmer has to assess the type of work he carries out and thus adjust the ideal pressure as much as possible. The Flotation TRAC is the perfect radial tyre for both cropland and pasture as well as transport activities since it has a stable central tread with rounded sides, an optimised tread pattern with a highly flexible carcass and a robust tread and bead design.

Versión en español.

13 July 2018

Mowing and threshing Castellana lentil

"Good year of lentils" could be a summary of what has happened. Months ago, we told you that this year we were growing the classic Castellana lentil again after many years without sowing them. Time has passed and harvesting days are coming. As we have already commented in our previous articles, this year has been rainy and despite the fact that for all crops it has not been ideal, lentils have given good yields. We had to perform some extra phytosanitary treatment in June, but we could save the crop.

As you can see in our pictures, we have not used a usual combine for this crop because it can damage the lentils and as these are for human consumption reason why they can’t be broken. Because of this, the collection is done in two stages:
  • First of all, the plant is mowed and left on ridges for a few days to dry out. As you can see, we have mowed them quite dry, fact that should be avoided. It is better to mow them when they are greenish-yellow (lemony) colour to prevent the fruit fall to the ground and be lost. We didn’t check the lentils everyday, and it was our major mistake, since in several days they dried up quickly due to a few days of high temperatures. We had to mow them in the early morning to take advantage of the wetter environment.
  • Once mown and dried, a threshing machine is used to separate the grain and the straw very effectively, obtaining very clean lentils without any damage (you can see it in our last photo). Without any doubt, it is an interesting process to watch and very entertaining. We don't have this type of machinery, so we have to hire a company dedicated to these tasks. The mowing price is 55€/ha and the price of the threshing task either compensable for the straw obtained (the lentil straw is highly valued by the farmers), if you want to keep the straw, the price is 65€/h. In our case, and in order to save any money, we have chosen the first option and therefore the threshing will be paid with the straw we have obtained.

Once the lentils are in our storehouse, a phytosanitary treatment must be carried out to prevent bugs and, then, they will be ready for sale. The price of Castellana lentil is very attractive, around 700€/t (production is around 1,000 kg/he) but these must be without damage and without stains (the stains are usually caused by a disease that has not been properly controlled) and therefore, the price may decrease depending on the quality of the lentils. Now we have to find a buyer and get the best possible price.

There is another modality of selling, which is usually performed for another variety “pardina lentils”, and consist on having a signed contract when they are sown. The company supplying the seed undertakes to buy the Pardina lentil at 480 €/t and the farmer will have to return 150% of the seed used. We like the Castellana lentil option better, which undoubtedly has more risk but is much more attractive and exciting.

Versión en español.