The wood pellet machine is better for the ring die and the flat die. Before we say that the machine is good, let’s analyze the raw materials for wood pellets. Common raw materials for wood pellets are sawdust, straw, etc. Of course, pellets made from straw are called straw pellets. Both sawdust and straw are crude fiber materials, which are characterized by high crude fiber content, light specific gravity and poor fluidity.

These characteristics of the material determine that a good wood pellet machine must be able to overcome these characteristics of the material. From the structure, the material must be fed smoothly, so that the material can be evenly distributed in the production process.

To make the material feed smoothly, a better way is to feed vertically. There is no detour in the middle, and there will be no material blockage, and the horizontal ring die pellet machine, which is the pellet machine we often use to make feed, is not vertical, but has an included angle. This results in the feeding is not very smooth. In addition, the horizontal ring die pellet machine is easy to cause fire due to its good sealing performance and high temperature in the machine. In the event of a fire, almost the entire production line can be destroyed. Therefore, the horizontal ring die granulator ranks last.

The flat die pellet machine is vertical feeding and has good ventilation, and even many small-volume manufacturers use it again. However, due to its working principle that the pressure roller does not move and the mold is selected, this results in uneven distribution of materials, and then one is that the output is not high enough, and the other is that the mold is easily damaged due to uneven force, which increases production costs. Therefore, the flat die pellet machine ranks second.

The vertical ring die pellet machine is a pellet machine specially designed for wood chips, so everything is not a problem. The vertical ring die pellet machine has several advantages that make it a suitable machine for pressing wood pellets:

1. Vertical feeding

2. The pressure wheel rotates.

3. The material is evenly distributed under the influence of centrifugal force.

4. Large output and high stability.

5. The mold has a long service life.