A growing number of specialized biomass applications – such as the wood pellet industry, co-milling with coal and certain gasification processes – require short fibre, thin wood chips. Peterson’s 5900 chipper and 5000H model delimber, debarker, chipper can now be readily adapted to produce uniform chips as short as 0.25 inches (six to seven mm) and 0.08 inches (two mm) thick.
Wood chips need to be a consistent thickness for uniform process control in a digester or dryer. Short fibre length is especially important if the chips will be further reduced in a hammermill. If low bark and ash are a requirement, the Peterson 5000H can achieve less than one percent bark content in many conditions.
