The original Valon Kone rotor
The new generation Valon Kone rotor
Originally designed for the North American market, we introduced a new generation debarking rotor using pneumatics for pressing tool arms in the mid 90s. It quickly became clear that this new system had large market potential in Europe and the rest of the world. Today, we use a similar air seal rotor on debarkers delivered to North America (Kodiak debarkers), as well as all other markets.
The pneumatic debarking rotor utilizes compressed mill air to create the tool arms’ tensioning. An air seal system makes it possible to bring in pressurized air from outside the rotor and subsequently change the pressure level of the tool arm during the process. When the machine is empty of logs, there is just enough pressure in the cylinders to hold the tool arms together. When the knife tool arms are about to climb on the log, the amount of air pressure is increased by using PLC-controlled valves. The pressure of the tool arms is raised to a pre-selected level to remove the bark. When debarking is done and the log leaves the tool arms, this added air is released and the system returns to a level that will hold the tool arms together.
Together with heavy-duty critical components and quick flow of pressured air, VK’s air seal rotor is today’s leading debarking solution on the market.
Tool tips for varying conditions
In a basic tip, the scraper and the cutter are at the same level; it is used for debarking of pine species.
Another tip version has a raised cutter; this tip is used for debarking of Spruce and Fir trees.
A third tip version has no raised cutter, but a supporting element which helps to avoid log-end damage when the tip is about to leave the log. Known as the “Winter tip”, it is used for debarking of frozen wood.
All debarking rotors manufactured by Valon Kone can be installed on the old debarkers as a retro-fit package. For additional information about VK debarking rotors, please contact Valon Kone Sales
|480 mm (18″)
|900 mm (35″)
|620 mm (24″)
|1000 mm (40″)
|820 mm (32″)
|1100 mm (43″)
|440 mm (17″)
|920 mm (36″)
|560 mm (22″)
|680 mm (27″)
|810 mm (31″)
|920 mm (36″)