PELLET HARVESTER / KRONE PREMOS 5000
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- Опубліковано 6 лис 2021
- Krone’s Premos 5000 is the first pelleting machine designed to work in the field.
AND CAN TURN STRAW, HAY, OR LUCERNE INTO PELLETS.
The Krone Premos 5000 collects cut fodder with less than 16% moisture, gathering the crop with a 2.35-meter camless pick-up before feeding it through an 800mm rotor to a feed conveyor.
From there, the fodder is conveyed through an 800mm wide rotor to a feed conveyor and then through two matrix rollers. The rollers compress the material and force it through 16mm diameter holes together with water or vegetable oil, to produce pellets of between 15mm and 40mm in length. The finished pellets are then loaded into a five-tonne bin, where they are cooled before they can be unloaded into a chaser bin.
In a recent demo, Lars Pasedag, Senior Product Manager for Krone, spoke about the Premos 5000. “The liquid dispenser - using both water and vegetable oil - allows the pellets to be adjusted in hardness, density, and quality for different uses. Pellet bulk density sits between 600 kg/m³ and 700 kg/m³, which is three to four times denser than straw bales, making them cost-efficient and easy to store.” An optional bale shredder and 7.5-meter feed table allow hay bales to be fed into the Premos 5000 while stationary, meaning it can operate outside the harvesting season. The minimum power requirement to run the Premos 5000 is 350hp.
The company claims that by eliminating pretreatment, such as chopping, horsepower demands are halved when compared to stationary pelleting machines. The Premos 5000 will still need a tractor with about 400 horsepower.
The 29,000 psi compression forces generated during the pelleting process create temperatures of about 80 C. When combined with 12 to 16 per cent moisture content in the material, durable pellets are formed that can be handled by conventional grain handling equipment. If windrow material is too dry, that’s no problem, the Premos 5000 has an “integral intelligent wetting system.” Producers could also pretreat the material with molasses to increase moisture content and improve feed quality.
Pellets that aren’t properly formed are dropped back into the material flow along with other uncompressed fines and go through the forming rollers again.
The pellets that are not good - broken or something - fall back through to the straw and go through again.
The nine cubic meter hopper holds up to five tonnes of pellets. The Premos can fill that hopper in about one hour making it three to five times more efficient than other stationary pelletizers currently on the market.
Pelletizing forage in the field offers some advantages over conventional baling or ensiling. Because the pellets are dense, they contain three to four times more material than a standard bale occupying the same space, so transportation is more efficient. And the high temperatures created during the pelleting process kill any pathogens that may exist in the forage, reducing the risk of feed-related illnesses in livestock.
And if pellets are used for bedding, they can reduce manure volumes. That’s because the pellets are very absorbent. Just 250 grams of them can absorb up to one liter of liquid, according to the company.
Krone also sees a use for the Premos 5000 in creating biofuels. The company says their research has shown that 2-1/2 kilograms of straw pellets can substitute for one kilogram of heating oil.
The retail price is around 250,000 Euros, that’s roughly C$372,500.
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