The bark is removed from the logs in drum or rotor debarkers:
In the drum debarker the so-called debarking drum is rotating, which contains several logs at the same time. The logs rub against the drum and also against each other. The bark is thereby removed. The longer the logs remain in the debarking drum, the more complete is the process.
A rotor debarker is used when it is important to remove the bark as thoroughly as possible. Each log rotates in the rotor debarker around its longitudinal axis. The rolling movement along the rotors peels off the bark.
The bark is collected and used in the factory for energy production.