What is the relationship between materials and mold compression ratio? We usually have a reference standard:
 
The materials bulk density reflects the specific gravity of the material. The greater the specific gravity of the material, the more lignin it contains. Therefore, the greater the bulk density of the material, the smaller the corresponding compression ratio.

For example, mahogany and jujube wood have heavy specific gravity,  it means that the lignin content in the material is relatively high. Once the lignin releases its stickiness, it is easier to shape, so a small compression ratio is enough. Another example is Pinus sylvestris. The material is relatively light and has low lignin content, so it is necessary to use a large compression ratio to press the pellets.

However, materials with high sugar and oil content are excluded. For example, corn straw has a lighter specific gravity, but it has high sugar content and high viscosity, so it can be pressed with a small compression ratio.

If you have any questions, you can contact us.