Wood chips pellets
Chips from a wood chipper must be ground to sawdust size and almost always dried.
About 4 m³ of loose chips make a tonne of pellets. A chip line starts with a hammer mill, followed by a dryer and the granulator. This raw material suits plants with their own wood waste or those buying energy chips.
What you need to know
- Grinding
- needed, hammer mill before the granulator
- Typical moisture
- above 15%, a dryer is needed
- Die
- die as for sawdust, after grinding
- Conversion
- approx. 4 m³ of loose raw material = 1 t of pellets
A pellet line for this raw material
Two lines to start from, and below them the production stages: which ones this raw material needs and which machines do the job.
Lines up to 1 tonne per hour
See lines up to 1 t/h
Lines from 1 tonne per hour
See lines from 1 t/h-
Feed hopper needed
Takes in the raw material and feeds it evenly into the line.
Feed hoppers with a screw discharger (V-shaped walls), Feed hoppers with a slat scraper (vertical walls)
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Grinding needed
The material has to be ground to sawdust size before it reaches the pellet mill.
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Drying needed
Above 15% moisture the line needs a dryer, sized to the amount of material.
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Pelleting needed
The heart of the line. For this material: die as for sawdust, after grinding.
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Cooling it depends
Needed from about 200 to 250 kg/h. It can be skipped with big bags, not with small bags.
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Screening needed
A drum or vibrating screen separates dust from the finished pellets.
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Packing your choice
15 kg bags, big bags or bulk, depending on the buyer.
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Transport between stages needed
Belt and screw conveyors connect the machines into one line.
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Control cabinet needed
Controls the whole line, also remotely from a phone.
Other raw materials
Test your raw material before choosing a line
Send a sample and see what pellets we can make from it. We test the material on our pellet mills and give you recommendations on the die and the choice of machines.
- You fill in the request, we call back and agree how much material to send (usually 2 to 3 bags).
- We pelletise it on the test line in Sieradz; you are welcome to watch.
- You receive a pellet sample and a report with a recommended die and line set-up.