What is the difference between crusher and shredder?

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Ⅰ What is a shredder
Ⅱ What is a crusher
Ⅲ The difference between shredder and crusher




1. What is a shredder

Shredder is an environmentally friendly device that can shred waste plastics, waste plates, waste tires and other waste recyclable resources for recycling. In terms of comprehensive utilization, it is a device that turns waste into treasure. The shredder is also different from the shredder in terms of its working principle. The shredder is a machine with a low-speed and high-torque knife roller. It can decompose large objects into irregular small pieces. Blocks are usually 20mm–200mm or larger in size. It is a professional machine for shredding solid waste. It usually includes several common specifications such as single-shaft shredder, double-shaft shredder, four-shaft shredder, horizontal shredder, and sheet shredder. The shredder uses a tool to cut, shred, and tear the material to shred the material. It is generally used to process unprocessed raw materials or leftovers. A typical example is to shred plastic or rubber scraps and use them as raw materials to melt and granulate them to remake plastic bottles, tires or trash cans. The shredder is used in the plastic recycling industry, and is often used for the shredding of waste large-diameter PE plastic pipes, bundled plastic films, large piles of plastic sheets and machine head materials.



Second, what is a crusher

Crusher generally refers to the equipment for crushing stones in mines. It is two different concepts from what we call the crusher in the plastic recycling industry. The crusher in the plastic recycling industry refers to the waste materials passing through high-speed rotating blades The way to chop into small particles becomes a raw material that can be reused! The principle is to chop the material by mutual shearing of the high inertia impact matching and the sharp-edged rotating movable knife and the fixed knife fixed on both sides of the rotating shaft. Generally speaking, large-sized materials (such as large pipes) are first torn into blocks with a shredder, and then broken into small pieces by a shredder, which are used as raw materials for reprocessing.
 


Third, the difference between shredder and crusher

1. In terms of structure, the single-shaft shredder contains a reducer, but the plastic shredder does not contain a reducer;
2. The single-shaft shredder has a built-in pusher box, while the plastic shredder does not have a pusher box;
3. The blades of the uniaxial shredder and the plastic shredder are different. The blade of the uniaxial shredder is diamond-shaped, while the blade of the plastic shredder is a sharp flat knife;
4. The working principles of single-shaft shredders and plastic shredders are different. Single-shaft shredders rely on knife rollers to cut materials at low speed and high torque, while plastic shredders rely on high-speed operation of knife rollers to cut materials. .
5. The size of the material targeted by the shredder and the shredder is different. The shredder is to tear the material into irregular 20mm-200mm or even larger size blocks. The crusher is to further crush these block materials into small pieces below 20mm, so as to achieve the conditions for further processing, such as granulation after cleaning.
6. The principle is different, the speed of the shredder is very slow compared to other shredders. The principle of the shredder to shred materials is mainly to tear, cut and shred various materials by low speed, large torque, and the speed difference between the shafts. The crusher uses a high-inertia impact matching and a sharp-edged rotating movable knife and a fixed knife fixed on both sides of the rotating shaft to cut the material into pieces by mutual shearing.
7. Most of the shredded materials are stubborn materials with high strength, large size and strong load. Most of the materials processed by the shredder are conventional materials with low load and small size. From the point of view of use, shredding has the advantages of safer, less manual operation and low noise. Crushing is relatively noisy and requires more manual operation and maintenance.