Chunker

JENSEN CHOPPER
Rolf Uhle, Energies Naturals, October 11, 2008

After realizing what you want is a big , clean chunky chip. But for this I don´t need a screw chipper, my old Jensen disc chopper does it perfectly !

That old boy (50y+)cuts neat 12 cm (3 1/2")bits from up to 15 cm diam. fresh hardwood on 20 hp pto and throws them 3m high n.p. It has only 1 blade and a counterweight, has a greedy mechanical 2 cylinder force feeder and still works perfectly after all these years. I built a simple holder for big bags for it and now it fills them o.k..Even very nasty almond and oak branches are drawn through the knives once the force feeder gets hold of the stem.

Of course it is man-fed and does not pick up from the ground which still limits its output and rentability processing pruning branches and crown wood.

If those screw chippers are too expensive and too delicate, why not try one of these. They are easy to build and very strong.

Rolf

Biomass Engineering Gasification Systems (2.2 MB)
Jim Campion, Biomass Engineering Ltd, U.K. October 2006

Biomass Engineering Ltd.

Jim Campion shows how Biomass Engineering has developed integrated gasification systems in 250 kWe modules with guaranteed performance.