In the fields of solid waste treatment and resource recycling, the single shaft shredder machine, with its targeted structural design, has become a core piece of equipment for processing tough materials and materials containing small amounts of light-gauge metal. It drives the cutter set via a single main shaft to tear and shear materials, providing crushed materials with qualified particle size for subsequent processing.
1. Core Structure and Working Principle
It consists of a main shaft system, a moving knife-fixed knife assembly, a cabinet, a hydraulic system, a power system, and an electrical control system. The main shaft is made of high-strength alloy structural steel; the cabinet is formed by welding thick-walled steel plates and undergoes aging treatment to eliminate internal stress. The hydraulic system is responsible for adjusting the cutter gap and providing overload protection, while the power system outputs stable torque through a "motor + reducer" combination. During operation, materials enter the crushing chamber, are sheared and torn by the moving knife and fixed knife, and crushed materials with qualified particle size are discharged through the screen. Materials that do not meet the standards will continue to be crushed until they are qualified.
2. Cutter Materials: Balancing Wear Resistance and Economy
There are three mainstream types of cutter materials: high-carbon alloy steel (e.g., Cr12MoV, suitable for pure tough materials such as plastic and wood), cemented carbide-inserted cutters (capable of processing tough materials containing small amounts of metal), and bimetallic composite cutters (suitable for mixed materials). These materials respectively balance wear resistance, toughness, and chipping resistance.
3. Application Scenarios and Technical Advantages
It is applied in fields including auto parts, barrel containers, metal products, solid waste, plastic products, wood and paper, electronic appliances, and medical waste. It has technical advantages such as strong material adaptability, low operation and maintenance costs, outstanding cost-effectiveness, convenient cutter replacement, and adjustable particle size of finished products.
4. Frequently Asked Questions
1. What is the core difference between single shaft shredder machine and double shaft shredder machine?
The single-shaft shredder is suitable for single-type tough materials or materials containing small amounts of metal, featuring low cost and convenient cutter replacement; the dual-shaft shredder is suitable for highly mixed and high-hardness materials but has a complex structure and high cost.
2. How to select cutter materials based on materials?
High-carbon alloy steel is used for pure tough materials, cemented carbide-inserted cutters for tough materials containing small amounts of metal, and bimetallic composite cutters for mixed materials.
3. What factors affect the capacity of a single-shaft shredder?
The capacity is affected by the main shaft speed, number of cutters, screen aperture, material density, and feeding uniformity. The larger the equipment model, and the better the main shaft speed and number of cutters, the higher the capacity.
4. What are the key points of daily maintenance for a single-shaft shredder?
Daily maintenance requires regular inspection of the tightness of components, monitoring of motor current, inspection of the hydraulic system, and evaluation of cutter wear for timely replacement.
With its high cost-effectiveness and strong adaptability to tough materials, the single-shaft shredder occupies an important position in solid waste pretreatment and resource recycling. Scientific selection of cutters and standardized operation and maintenance are the keys to exerting its efficiency and helping the industry reduce costs and increase benefits.
Shredding Machine
Waste Recycling Line
Optional Equipment