pellet equipment

A pellet machine is at the heart of any pellet production operation. The pellet machine has the main task in pellet formation, and is therefore the most energy intensive and expensive piece of pellet equipment. The main components of the pellet mill are the roller and die. There are two main designs of pellet mills including the flat die and ring die pellet machine. The die is where pellet formation takes place, it contains a series of holes at a predefined diameter. For example most pellet stoves require a 6 or even a 4mm pellet, where many pellet boilers can use up to an 8mm pellet.

The pellet mill dies are the most important part of pellet equipment. The die plays the most significant role in pellet quality, pellet mill productivity and pellet mill energy consumption. The die has to be designed to do a balancing act, to achieve the pellet quality and density required while keeping pellet mill production as high as possible and keeping pellet mill energy consumption as low as possible. The wholes on the die are not straight, there is a relief at the entrance and exit of each hole. These relieves help in compression and also flow through the die. There are specific hole designs for each raw material to achieve maximum productivity and quality. However there are also die designs which are suitable for a general range of raw materials to save the expense of multiple dies.