Biomass pellets for industrial use are made through the compression of wood shreds or sawdust. The compression is done under high pressure so as to ensure that lignin softens such that it can now bind together the material. The combination of the low content of moisture and material that is highly compressed leads to the production of high volume energy density that is 3 to 4 times as compared to wood chips. The biomass pellets are not only consistent and clean but they also flow very easily. These features make them especially attractive for industrial use. The considerably lower requirements of storage as compared with wood chips make them highly attractive to the urban applications e.g. schools.

While the pellets for domestic use or small scale applications  have diameter of 6 to 8 mm, the biomass pellets for industrial applications may have diameter of 10 to 12 mm. If the biomass pellets have diameter that exceeds 25mm, they are no longer referred to as pellets but briquettes. In terms of function and appearance, the briquettes may resemble fire-log. However, the briquettes have improved combustion properties, handling, and improved storage than fire-log.

Pellets of poor quality may crumble in to sawdust or they may produce high quantities of ash. To ensure that biomass pellets are of high quality, it is recommended that you acquire high quality pellet making machine. You should ensure that you set the pelletizer or pellet mill to the settings where it can produce pellets that comply with industry standards.

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