The single-shaft plastic crusher is widely used in the field of plastic recycling and is indispensable equipment in this field. It plays a vital role in the core step of plastic crushing. It is easy to operate and practical. The single-shaft plastic crusher can crush different types of plastic raw materials into suitable sizes, laying the foundation for subsequent processing steps. Below, we will introduce the various parts of the single-shaft plastic crusher in detail.
Basic Principle
When the single-shaft plastic crusher is in operation, it mainly relies on the rotation of the blade on the cutter shaft to cut and crush. When the machine starts, the motor starts to drive the cutter shaft to rotate rapidly. During this process, the blade is in continuous contact with the material. The combined effect of shear force and tearing force gradually breaks down the originally larger plastic blocks into smaller plastic fragments. The reason why single-shaft plastic crusher can operate efficiently is mainly because of its unique working mechanism; it can effectively handle various types of plastics, whether it is harder hard plastics or softer soft plastics, and it can achieve ideal crushing effects with its help.
Scope of Application
This single-shaft plastic crusher can handle the crushing of various plastic materials. In daily life, items such as plastic bottles and plastic barrels can be crushed; in the industrial field, plastic waste and scrap parts can also be crushed by single-shaft plastic crusher, thereby realizing the recycling of resources.
It performs well in processing plastic products of various shapes, whether it is plastic sheets as thin as paper, cylindrical plastic pipes, or plastic products of various shapes. This feature brings more diversified choices to the plastic recycling industry.
Equipment Advantages
Compared with other types of crushers, the single-shaft plastic crusher has a more compact structure, occupies less space, and is easy to install and use in various places. Its operation process is stable and reliable, and the failure rate is low, thus reducing the maintenance cost of the equipment. In addition, when the machine crushes plastic particles, it can ensure that the particle size is basically consistent, which fully meets the standards for subsequent processing.
Main Categories
I. Hard plastic crusher
- Crushing and recycling of ABS, PE, PP, and other plates.
- The rectangular feeding port, which is uniquely designed for the crushing of plate materials, is convenient for the long strip plates to be put into the crushing and improve the work efficiency. The optional suction fan and storage barrel can form a plate crushing and recycling system to give full play to the recycling efficiency.
- The use of sealed bearings can keep the bearing rotation in good condition for a long time; the knife type design is reasonable, and the product is evenly granulated; the knife seat is heat-shrunk, and the appearance design is beautiful and generous.
II. Powerful plastic crusher
- The sheet knife structure is between the claw knife and the flat knife, which is suitable for crushing ordinary sheets, pipes, profiles, plates and packaging materials and other plastic products.
- General plastic crusher, using sealed bearings, so that the bearing rotation can be kept in good condition for a long time; the knife type design is reasonable, and the alloy steel blade is used, and the product is evenly granulated; the knife seat is heat-shrunk, and after strict balance test, the appearance design is beautiful and generous.
III. Plastic pipe crusher
- Suitable for crushing various small and medium-sized plastic pipes, such as PE, PVC pipes, silicon core pipes and other pipes for recycling.
- The round tube feeding port is uniquely designed for pipe material crushing, which is convenient for long pipes to be crushed and improves work efficiency. The optional suction fan and storage barrel can form a pipe crushing and recycling system to give full play to the recycling efficiency.
Blade Type Classification
I. Claw Blade Crusher
Suitable for crushing and recycling all kinds of plastics, particularly hard materials such as sprues, shoe lasts, and rigid plastic parts. This crusher is easy to operate, and the blades can be replaced quickly. The claw-type blade holder is optimized to distribute cutting force evenly, enhancing each blade’s shearing strength. It is especially effective for crushing thick materials, rigid blocks, and sprues, significantly improving cutting efficiency and reducing blade wear. Equipped with an electric safety control system and a double-layer soundproof hopper, the machine offers excellent safety, energy efficiency, and environmental performance.
II. Slice Blade Crusher (Also known as Flake Blade Crusher)
The slice blade structure is intermediate between claw blades and flat blades. It is suitable for crushing general plastic sheets, pipes, profiles, panels, and packaging waste, as well as sprues. As a general-purpose plastic crusher, it features sealed bearings for long-lasting smooth operation. The blade design ensures uniform granule size, and the blade seat is heat-treated for enhanced durability. The overall structure is practical, and the appearance is clean and professional.
III. Flat Blade Crusher
Flat blade crushers are ideal for recycling plastic boxes, thin-walled pipes, blow-molded parts, bottles, and plastic shells. These machines are user-friendly, with fast blade replacement. The wide flat blade structure is particularly well-suited for crushing large, thin-walled, or lightweight materials, improving crushing efficiency. The machine includes an electric safety control system, a double-layer soundproof hopper, and is equipped with motor overload protection and power interlock safety systems. It provides excellent performance in safety, energy saving, and environmental protection.
Conclusion
The single-shaft plastic crusher is a crucial piece of equipment in the plastic recycling process, known for its efficiency, reliability, and versatility. Utilizing high-speed rotating blades that continuously cut against fixed blades, it effectively reduces plastic materials into smaller, uniform particles that can pass through fine screen holes. This makes it especially suitable for secondary crushing, where consistent particle size is essential for downstream equipment like granulators. The machine’s compact design, stable operation, and low maintenance requirements make it ideal for various operational environments. Additionally, the use of air separation systems minimizes space occupied by conveyors and allows for more flexible discharge configurations. Thanks to its ability to handle both hard and soft plastics and deliver high-quality output, the single-shaft plastic crusher has become a standard solution in recycling industries with strict requirements for particle uniformity and processing efficiency.
