There are three kind pellet mills:

Horizontal ring die pellet mill, Vertical ring die pellet mill and Flat die pellet mill.


1. Horizontal ring die pellet mill, during machine working the rollers are stable, the ring die is rotating, adopt force feeder system, it can suitable for both low bulk density and high density raw material, this character decide it have the most widely usage. If you want to make biomass fuel pellets, but you do not know which pellet mill to choose, just take a horizontal ring die pellet mill, since this kind of pellet mill is the most popular among the three.


2. Vertical ring die pellet mill, during machine working the rollers are running, ring die is stable, the rollers, ring die and shaft is installed in a vertical level, due to it’s structure, it is much more suitable for low bulk density raw material, such as peanut shell, sunflower husk, powder chopped from straw, because these kind of raw material is soft and bulk density is low, so it is easier to press into pellets in this kind of pellet mill. So, if your raw material is peanut shell, sunflower husk, straw and low bulk density soft raw material a vertical ring die pellet mill is much more suitable for you.


3. Flat die pellet mill, during machine working the rollers is running and flat die is stable, this kind of pellet mill is small and capacity is low,the biggest machine capacity is 500kg/h. If you produce pellets in small quantity, flat die pellet mill is your best choice, it is usually chose by home using, farmer, small quantity producer and beginners of pellet making.