Are debarked cut-to-length logs critical in terms of load safety?

In-stand debarking of roundwood during processing by cut-to-length harvesters with modified heads has been investigated in a joint research project by KWF, HSWT und TUM in recent years, and now these machines are already in use by some logging companies in Germany. With in-stand debarking of cut-to-length logs becoming more common, the question arises whether this poses a problem for load safety during road transport due to the smooth and possibly wet log surfaces. Joachim B. Heppelmann, doctoral candidate of Prof. Eric R. Labelle, analysed the static and sliding friction properties of debarked short logs in comparison to barked logs in a controlled experiment.

The results of this study have now been published in an article freely available at: