In the fields of solid waste treatment and plastic recycling, shredders and crushers are often confused with each other. Though both are core equipment for material volume reduction processing, they each have their own roles in the production process and form a golden combination of primary reduction - fine crushing. Choosing the right equipment can double the processing efficiency.
A shredder is the front-line powerhouse of material processing, focusing on primary crushing with low speed and high torque. Through the shearing and tearing of knife rollers, it can easily handle large-volume, high-toughness stubborn materials. "Bulky items" such as large-diameter plastic pipes, bundled films and bulky solid waste are turned into irregular blocks of 20-200mm after its processing, quickly achieving volume reduction, clearing obstacles for subsequent processing and effectively avoiding material jamming and winding problems.
A crusher is the back-end expert of refined processing, with the core advantage of high speed and high efficiency. Relying on the impact and shearing of high-speed rotating blades, it further refines the shredded block materials into uniform small particles below 20mm, making the materials accurately meet the raw material requirements of subsequent processes such as cleaning, granulation and milling. It is the key to realizing standardized material processing in fields like plastic recycling, mining and building materials.
Simply put, the shredder is responsible for breaking the whole into parts to solve the problem of over-large material volume; the crusher is for pursuing perfection to achieve precise control of material particle size. In modern processing production lines, the two work in coordination to make material processing more efficient and more in line with production needs.
