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Making a woodchip with a slow speed shredder


Rwfbiomass
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We have been using an untha lrk1400 to process pallets fitted with a 25mm screen mesh in it for producing briquettes. The screen gives a pretty consistent size of around 5-25mm but of a 'fluffy' nature, we were wondering if this same machine would produce a quality enough fuel as said in their own blurb to be good enough for heating sytems from virgin roundwood. Now pallets give a good old rattle about when they're in the mouth of the shredder so we were thinking maybe the roundness/weight of roundies would give quality enough fuel without getting too 'fluffy'. Has anyone tried similar?

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We found using a disc chipper we got a more uniform size with a wetter chip and the drier the timber the more dusty it became and smaller in size, probably looking at putting 25%mc< thru the slow speed, pallets were around 13-17%mc but still fluffy even with new teeth so I can only think it's the grinding action of the drum.

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