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Further options are the different corrugations that can be refl uted up to eight times, depending on the product to be crushed, as well as the option of single-stage or two-stage crushing. In the case of two-stage crushing, two pairs of rollers are arranged on top of each other.
Depending on the input product and the desired grinding result, users have the option of operating the roller pair in "sharp to sharp" or "dull to dull" mode. Thus, not only the size of the end product is determined, but also the type of processing. In the operating mode "sharp to sharp" the grain is broken or cut, while it is crushed in the operating mode "dull to dull". As a result, the grinding result is signifi cantly optimised.
Renaissance of a classic
Depending on the input product and the desired grinding result, users have the option of operating the roller pair in "sharp to sharp" or "dull to dull" mode. Thus, not only the size of the end product is determined, but also the type of processing. In the operating mode "sharp to sharp" the grain is broken or cut, while it is crushed in the operating mode "dull to dull". As a result, the grinding result is signifi cantly optimised.
The crushing roller mill with individual drive ensures an even more specifi c adjustment in crushing of individual components for feed production. The crushing roller mill can also reliably process grains such as rye and barley that have been diffi cult to process so far. The combination of variable gap and variable speeds through the individual drives provides many options for adapting the formulae to the customers' specifi c needs. "From barley and oats to very fi nelyground rye for sow feeding, a wide variation of granulations is now possible on a single machine due to the individual drive," Felix Tometten sums up. The AMANDUS KAHL crushing roller mill with the new drive design is experiencing a renaissance. Its special features are all about enhancing animal welfare through optimal animal nutrition.
Functioning and technical parameters
The new drive design has a particular advantage over the reduction gear previously used. In addition to the size of the grinding gap, the speeds of the two counter-rotating, corrugated rollers made of surface-hardened special steel can now be adjusted individually - even during operation. This infl uences the so-called lead, which denotes the speed difference of the rollers. The lower the differential speed, the lower the fi nes content in the fi nal product and vice versa. The speed ratios can also be reversed if required, which infl uences the resulting structures.
Author: Felix Tometten, Animal Nutritionist, Research & Development Department at AMANDUS KAHL
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