The objective of performed investigations was to determine the influence of the shape of the cutting link and the inclination angle value of the horizontal blade cutting edge on chain durability. The objects of the investigations were two types of chains with chisel and semi-chisel types of cutting links. The performed experiments showed that in conditions of cutting of soiled timber, chain saws with a chisel type of links were more durable than those with semi-chisel links, and for the two types of cutting chains tested, the variants with the angles suggested by the manufacturer.

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