​When installing roller shell, you should check whether the work surface of roller and ring die is in suitable position. The machine can’t work under the condition that roller shell touches the ring die feed channel, or it will casue damage of the ring die and roller shell.

​Gap between ring die and roller shell: ensuring the ring die working face can rotate the roller shell fitfully will be OK. Theoretical data is about 0.1-0.3mm, not too tight. ​Safety bin must work to ensure the pellet machine safety. It will be broken if any briquette or strange matter enter the ring die.