Raw logs (including frozen, curved, or dense species like eucalyptus, oak, or birch) are fed into the debarker via an ​​infinitely variable-speed conveyor​​, which automatically adjusts the feed rate (4–12 m/min) based on log diameter and wood density. Upon entering the rotating drum, logs undergo ​​clockwise tumbling at 8–12 RPM​​ for precisely 15 minutes.

During this phase, ​​dual debarking mechanisms​​ work simultaneously: kinetic collisions between logs dislodge bark through impact friction, while hydraulically controlled four-edge knives (maintaining 180–380 bar pressure) scrape residual bark by dynamically contouring to each log’s surface curvature. Following debarking, the drum instantly reverses rotation to ​​counterclockwise at 10–15 RPM​​ for exactly 2 minutes.

This centrifugal phase actively ejects bark-free logs through discharge gates while purging all debris (bark fragments, silica, grit) through integrated screening slots. The system self-resets within seconds, enabling continuous batch processing with zero manual intervention. Output achieves ​​＞95% bark removal purity and <1% wood surface damage​​ – ready for pulp milling or precision lumber processing.