U.S. Department of Agriculture

Reducing particle dimensions of chunkwood

chunker blade schematic

Presents and compares the chunkwood sizes obtainable with the USDA Forest Service prototype wood chunker using four different blade configurations, and the results of further chunkwood reduction with three methods totally separate from the chunking process.


Prototype wood chunker used on Populus 'Tristis'

Chunker Diagram

Populus 'Tristis' trees grown under short-rotation, intensive culture were sampled and chunked in a prototype experimental wood chunking machine. Data presented describe the character of the trees chunked, the energy and power requirements for chunking, and the chunking rates Specific energy requirements for chunking Populus 'Tristis' are compared with chunking and chipping common Lake States species from natural stands.


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