The angle of the cutting knife is like a chef's knife skills, directly affecting the quality of the wood chips and the machine's efficiency. Common wood chipper cutting knife angles are between 25° and 35°, a range that balances cutting force and wear resistance. An angle that's too small easily leads to chipping, while an angle that's too large increases energy consumption. Just like cutting vegetables, a blade that's too dull requires too much effort, while one that's too thin is prone to chipping.
Special Requirements for Wood Chippers
Wood chipper blades typically require a steeper angle (30°-40°) because:
Raw material differences: Often processed with bark, requiring stronger cutting force.
Finished product requirements: Producing thicker wood chips, a larger angle is more suitable.
Durability considerations: Harder woods require stronger cutting edge support.
How to Choose the Ideal Angle
There is no one-size-fits-all "height" angle, but consider the following:
Softwood processing: 25°-30° is more energy-efficient.
Hardwood processing: 30°-35° is more durable.
Mixed materials: A compromise of 28°-32° is suitable.
High-volume requirements: Appropriately reduce the angle to improve efficiency.
Regularly checking the blade wear and adjusting or replacing it promptly is more important than rigidly adhering to a certain angle.
Our store stocks high-speed steel blades compatible with most wood chippers, measuring 780×120×20mm and weighing 1200g. They undergo a special heat treatment process to enhance durability and are suitable for various wood processing scenarios. The blade is precision ground and comes with a factory-preset 32° universal angle, so it can be installed and used immediately upon delivery.
