The article shows the effectiveness of the process of grinding arbomass remaining on logging area. In the research undertaken Meri Crusher MJ 2.3 DT was subjected to scrutiny; the crusher was aggregated with a 1.4 Crystal tractor. In order to establish the actual effectiveness of grinding, the results were measured before and after the utilization of chip residue. The analysis showed that a decrease in dimension of chip residue was greater in its length than in its diameter. The achieved effect of grinding the arbomass appeared to be satisfying in terms of possibilities of a mechanical surface preparation before its regeneration.

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