an integrated sawmill and pellet mill project

An Integrated Sawmill and Pellet Mill
Forssjo Bruk AB manages an integrated sawmill and pellet-production plant on the Ericsberg Estates near Katrineholm in central Sweden. The sawmill annually consumes approximately 165,000 m3 of timber with 85% of the finished product exported. The pellet production system placed in service in 1995 has a capacity of about 45,000 metric tons per year. Pellets are sold in bulk for use in district heating plants and bagged for small-scale residential heating systems.
A 15-MW heating system fueled mainly with bark and wet wood chips provides heat for the drying kiln and for drying the sawdust prior to pelleting. Sawdust from the on-site milling operation, as well as other sources, are used.

Log pile.

Log debarking.

Sawdust – a by-product of sawmilling.

Sawdust is moved with a large bucket loader from the sawmill to the pellet plant.


Sawdust is then moved to a large silo.


A large drum dryer reduces sawdust moisture content from 55% to 10%s

Dried sawdust is moved by conveyer to the pellet plant.


One of two Danish Sprout-Matador pellet mills, combined capacity seven tons per hour.


Sawdust enters at the top, pellets are dropped on conveyor at bottom
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Pellet mill.


Large electric motors are required to drive the mills.


Pellet dies, have an average service life of 1,000 - 1,500 hours.

An automatic bagging system is adjacent to the pellet mills.

The easy-to-handle, 16-Kg pellet bag was designed for the Swedish market.

The bagged pellets are automatically loaded on pallets.

The pellet bag labels target multi-country markets.

Pallets of pellets outside warehouse await the heating season.