Plastic shredders are mainly suitable for breaking down solid plastics so that waste plastics can be recycled easily and efficiently without any inconvenience or unnecessary hazards. Waste plastic materials include purge, sprue, sprue, scrap. In addition to being used for secondary crushing, they can also be used for crushing and cleaning materials if a water spray system is added.
There are three ways to feed the crusher by manual, conveyor and forklift. The latter two options involve machines so they can transport heavy materials in bulk. However, take special care that metals do not mix with the feed. Manual feeding is straightforward and simple. Incoming materials can often be sorted out of metals by manual inspection. However, unlike machines, humans cannot lift heavy objects.
Typically, crushers cannot process metal-bearing materials. Pure plastic and wood are ideal materials for plastic shredders. In rare cases, hard plastics such as PA (Nylon) are too rigid for standard shredders. This requires a special rotor. Plastic film rolls and raffia fibers are not processed directly by the shredder as they significantly reduce the shredder output.
The screen opening size determines the output size. Generally speaking, the output size is around 10-12mm. If you want something even smaller, there is the option of a plastic shredder, which can shrink further down to 1-5mm. For film and hard plastic, there are unique designs. For other common plastics, a standard screen will suffice.
Cyclone collection or conveyor belt? If your final product contains too much fines, a cyclone separator removes fines and collects regrind. A metal detector between the crusher and the cyclone removes the metal. Conveyors are rarely used unless secondary crushing is required.
The selection of plastic crusher involves feeding method, receiving method, output, material composition and output size. How to choose a plastic crusher is not a challenge. All customers can follow this guide to choose the ideal plastic recycling machine.