Roller shell, commonly known as roller, is one of the main parts of pellet mill. pellet roller can be used to process various biofuel pellets, animal feed and other pellets.
Now we have the stainless steel roller shells of different shapes, such as:
close-end grooved roller shell, honeycombed roller shell, drum-hole groove roller, open-end grooved roller shell, deflective-grooved roller shell etc.
The Basic Theory
Inside the ring die of pellet mill, there is double roller shells mounted on an eccentric, turn on a rotating shaft as friction develops. The mutual pressure between ring die and roller shells overcomes the resistance when feed is forced through the die holes in high speed so that dissections of finished pellets become tight layers of feed mixture. The die is driven by a motor and the roller shell turn only as feed between rolls and pellet press dies develops friction.