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What are pellet mill dies?
In order to produce pellets (animal feed pellets, sawdust pellets, biomass pellets), raw materials are processed inside a pellet mill or pelleting press. Inside the pellet mill the most important part for producing the formed pellets is the pellet die.Inside the pellet mill is the pellet die, either a ring die or a flat die. The raw material is fed into the compression chamber, where pellet rolls press/roll the raw material through the small holes of the pellet die. Out of the outerside of the pellet dies come out the long strands of pellets, which are then cut by a knife to give the finished pellets out of the output chute.
The Pelleting Process Explained
1. This first diagram shows the entire pellet die with 2 roller shells inside. This first picture shows a ring die. Both the pellet die and the roller shell are rotating, and the rollers work to push the mixed material through the holes of the pellet die.
2. This second diagram shows the entire pellet die with 1 roller shell on top. This second picture shows a flat die. Both the pellet die and the roller shell are rotating, and the rollers work to push the mixed material through the holes of the pellet die.
3. This third diagram shows a close up of the roller shell and a hole of the pellet die. As the roll rotates it compounds the raw material and compacts/forces it into the hole of the pellet die.
4. This fourth diagram shows a close-up cross section of a hole. The width of the hole (in between the 2 grey walls in the diagram) will be the diameter of the finished pellets that come out of the pellet mill.
5. This fouth diagram shows the hole on the outer side of the pellet die. Once the raw material is compacted and force through the holes of the pellet dies, the formed pellets will come out from the other side. Once cut be a knife to a predetermined lenth, you will be left with your finished pellets ready for crumbling (optional) and cooling.
6. Te result is finished pellets. Shrimp feed pellets, poultry feed pellets, livestock feed pellets, fish feed pellets, pellet crumbles, biomass pellets, wood pellets, grass pellets, straw pellets, etc.
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