Grain as livestock feed: do you choose a hammer mill, disc mill or grain crusher?

Aside from solutions for the transport and storing of grain, Jansen&Heuning also offeres machines to process grain into concentrates for poultry, cattle or pigs. These machines are suitable for livestock farmers who want to feed their own grain and as industrial machines for feed mills. But which machine is most suitable: the hammer mill, disc mill or grain crusher?

Hammermills

The hammermill is a well-known machine: a rotating rotor with hammers that smash the incoming product. The housing of the hammer mill is fitted with a screen with a perforation of your choice. The chosen perforation determines the size of the outgoing product and the capacity of the machine.

The advantage of this simple but robust construction is that there is little room to generate heat during the grinding process. The replacement of the wear-parts is also very uncomplicated. Depending on the product and the chosen screen, the hammermil has a capacity of about 5 tons per hour.

Disc mill

Wherethe hammermill has been a proven concept for decades, the disc mill is fairly unkown to most people. The operation of the disc mill is similair to the millstone that were used in windmills to grind flour.

The disc mill has a fixed disc and a rotating disc. With a spindle, the grinding distance between the discs is infinitely adjustable, eliminating the need for sieves. The disc spacing is adjustable even when the machine is running therefor the grainsize of the product to be ground is very easy to change. The discs are made out of high-quality materials with a long service life: on average the discs can grind about 5000 to 10000 tons of material before they need to be replaced. The disc mills are on average 10% more efficient in power consumption than the hammermills are, the disc mill can achieve a capacity of about 6 tons/hour. Upon request there are even disc mills available with a capacity up to 24 tons/hour.

Finally, because there are no loose parts in the disc mill, it is much more quiet than the hammermill. Useful when people are working close to the machine.

Grain crusher

Whilst the hammermill and disc mill are mostly aimed at high capacities and continuous use, the graincrusher is a great option for the livestock farmer who want to feed his own (or purchused) grain in smaller batches. A grain crusher does not grind the grain but it crushes it by passing two crushing rollers with a preset crushing distance. As a result, no product is lost in form of dust and the grain retains its optimal feed values. Because the grain is only crushed, heat generation is minimal.

Jansen&Heuning has several grain crusher in its productrange up to a capacity of 2 tons/hour.

Did you know? Whaterver milling process you use, the grain will heat up about 5 to 10°C. This warming up can sometimes have unpleasant consequences for the further process. When good ventilation is applied, in the form of high-quality Jetfilters, the heat build-up can be limited. 

Supply and removal of grain

Many options are available for the supply and removal of grain. Think of hoppers, augers, elevators, fall pipes and more. The engineers at Jansen&Heuning are happy to help you come up with a suitable total solution for your situation.

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