The heart of the hulling process is the twin, rugged 18" dia rolls equipped with removable huller knives. These twin rolls are driven at a ratio to enhance the cutting process thus minimizing the amount of uncut and recycle seed. This ratio combined with a spiral lead on the cutting edges allows the highest percentage of open "hulled" seed available to the separation room.
The replaceable huller knives are manufactured from the highest quality alloy and hardened to 52R for extra long process life. Having removable hulling surfaces allows Cottor to tailor the knife profiles to fit the specific hulling requirements of the wide variety of oil seeds processed. All huller knives are manufactured from a single fixture giving absolute interchangeability for all replacements.
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Protecting the machined huller knives while they are in operation is accomplished with hydraulic cylinders and relief valves that will instantly open the rolls automatically should any damaging contamination come in with the seed stream.
Rugged, reliable, high capacity, low maintenance and economy are the many reasons more processors are changing to Cottor's twin roll huller.
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