At the end of wood pellet maker production, it is important to clean the pellet maker die so production can easily be started again. If the raw material being processed is left in the die, as the die cools the material inside the die will also cool and the lignin will set. Once this has occurred it will be very hard to start production again and may require the die to be drilled out. The extent of the problem does depend on the material that was processed, and the die type and metal.
Wood Pellet Maker-Material
If the raw material of wood pellet maker, which was been pelletized, were a low-density oily material, die cleaning would not be required. However in most cases with wood and other biomass pellets this material must be removed from the die to make production start up easier. Therefore at the end of production a low- density oily material should be processed through the wood pellet maker machine. This low-density oily material will not set as hard as the raw material, enabling easier production start up. Possible materials include wheat bran, flour, corn or barley mixed with vegetable oil.
