Even though the molding work of biomass straw is seen to be simple, it can still be influenced by many factors.

Ring die pellet machine, featured in the high working capacity, easy maintenance and wide application range, is more and more popular in these years.

Yielding rule is also called shaping condition, which is the standard to judge the stage that raw materials of ring die pellet mill are in.

If raw materials experience the molding work, deformation is certain.

Biomass molding way is classified into two ways, according to the existence of plug.

Along with the rapid development of computer science and technology, we combine the computer with finite element method together in 1970s.

Molding pressure is one of the key factor for work of ring die pellet mill.

There are many factors that can influence the biomass-fuel molding work, like material kind, material size, water content in material, molding pressure and frictional power, etc.

In November, 2000, Beijing arrow software company works with Chinese Academy of Sciences and successfully produces the first finite element software in World, which can be used through internet.

For people who have touched with ring die pellet machine, they must know the importance of distance between press roller and ring die.