Wood Crusher

Wood Crusher Information Introduction

The wood crusher (also known as wood chipper) is a primary crushing pretreatment equipment specially designed for efficiently processing high-fiber tough materials such as logs, branches, board offcuts, and waste wood products. Through powerful shearing and impact, it rapidly crushes various irregular wood waste into uniformly sized wood chips, providing ideal raw material for subsequent grinding processes. It is key equipment in wood resource utilization production lines.

Log → Wood Crusher → Belt Conveyor → Trommel Screen → Dryer → Wood Grinding Mill

Features and Advantages of Wood Crusher

High-Efficiency Crushing: Utilizes high-torque, low-speed design to efficiently process logs, tree roots, and waste wood with diameters ≤300mm.

Precise Control: Equipped with adjustable screens and grates, enabling precise control of discharge size within the range of 20~120mm with uniform particle size.

Stable and Wear-Resistant: The core cutter roller and tools are forged from special alloy steel, offering excellent wear resistance and impact resistance for continuous stable operation under heavy load conditions.

Strong Adaptability: Unique feeding system and anti-tangling design enable processing of high-fiber materials such as branches, slabs, and formwork.

Working Principle of Wood Crusher

Raw material is fed into the wood crusher via conveying equipment, then crushed and disintegrated through shearing, impact, and tearing by the high-speed rotating heavy-duty alloy cutter roller inside. The crushed material is then screened through the bottom screen. Fine chips meeting size specifications are discharged from the machine, while oversized coarse material is retained in the chamber for continued shearing and crushing until it reaches the required size for discharge. The discharge particle size is controlled by replacing screens with different aperture sizes.

Application Scenarios for Wood Crusher

Technical Parameters of Wood Crusher

Frequently Asked Questions about Wood Crushers

Why does the wood grinding production line adopt the process of crushing first and then drying?

Moisture inside large logs is difficult to dry. In contrast, heat transfer in crushed small wood chips is faster, resulting in higher drying efficiency and lower energy consumption. Although drying first and then crushing could reduce wear on the wood crusher, it poses transportation difficulties and requires longer drying time and higher costs, which is not conducive to efficient production. Therefore, wood grinding production lines generally adopt the process of crushing first and then drying.

Why not use other crushers for crushing wood?

Other crushers (such as jaw crushers, impact crushers, hammer crushers, etc.) primarily rely on compression or impact to crush materials. However, wood is a high-fiber, high-toughness elastic material with strong resistance to impact and compression. Other crushers cannot efficiently crush wood. Using other crushers for wood processing can also lead to material tangling and clogging, causing equipment damage. Therefore, a wood crusher with strong shearing capability must be used.

Why is it strictly prohibited to crush rotten wood with a wood crusher?

It is strictly prohibited to process excessively rotten wood with a wood crusher because the fiber structure of rotten wood has already disintegrated. During the crushing process, it cannot be effectively sheared; instead, it adheres to and clogs the equipment, causing damage. Additionally, rotten wood accelerates corrosion wear on the tools and core components of the wood crusher. The products produced are easily contaminated with dust, resulting in low finished product quality and potential harm to human health. Therefore, processing rotten wood with a wood crusher is strictly prohibited.