A Wood Pellet Production Line is a complete biomass processing system designed to convert wood waste, logs, branches, pallets, sawdust, and wood residues into high-density biomass fuel pellets. The production process consists of several key stages, including wood crushing, magnetic separation, grinding, drying, pelletizing, cooling, and packaging.
The process begins with the , where large wood materials are reduced into smaller wood chips using a wood crusher or drum chipper. These chips then pass through a magnetic separation system, which removes metal contaminants such as nails, screws, and iron wires to protect downstream equipment and ensure safe operation.
Next, the material enters the grinding section, where a high-efficiency hammer mill processes the wood chips into fine and uniform sawdust. Depending on the moisture content of the raw material, the sawdust is conveyed to the drying section, where a rotary drum dryer or airflow dryer reduces moisture to the optimal level of 10% to 15% for pellet production.
The dried material is fed into the pelletizing section, where a wood pellet mill compresses the sawdust under high pressure to produce durable biomass pellets with high energy density. Freshly formed pellets are then transferred to the cooling section, where a counterflow cooler lowers the pellet temperature and improves hardness and storage stability.
Finally, the pellets enter the packaging section, where automatic weighing and bagging machines prepare finished products for transportation, storage, and commercial distribution.
With advantages such as high automation, stable production capacity, low energy consumption, and reliable performance, wood pellet production lines are widely used in biomass fuel plants, renewable energy projects, and wood waste recycling industries.