How Plastic Recycling Equipment Works
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Plastic recycling machine consists of the following several parts 

Size Reduction Machines

In order to allow further processing and to provide easier packaging, transportation, and distribution of recycled stock,Plastic materials usually need to be cut into smaller sizes. This cutting presents certain challenges, as many plastics are abrasive to metal blades and can have wide variation in their hardness, weight, and thickness. Most standard size reduction is performed by single or multi-shaft shredders, and granulators. Multi-shaft shredders perform scissor-like cutting with a series of rotating blades that can handle moderately dirty or contaminated material, but are somewhat imprecise in the size of the cuts.They can also handle dirty or abrasive material and usually have adjustable or replaceable blades.

Sorting Equipment

Sorting and grouping plastic materials according to resin type is an important first step in the recycling process because contamination can render a batch of material un-reusable. The most frequently recycled resins, including PET, HDPE, PVC, must be carefully separated from one another in order to enable further processing. Contaminants within each type of plastic must also be removed from the base resin to ensure stock purity.

Washing Equipment

After the plastic has been cut into smaller pieces, or “flakes,” the stock usually needs to be washed in order to remove lingering dirt or attachments. Paper, glue, sand, and grit are some of the common elements targeted in the washing process, which can be accomplished using water baths, friction washers, or a washing line. The washing line applies a continuous hot spray over a stream of plastic material, removing some or all of the labels and dirt attached to the plastic surface. Detergents and disinfecting agents are often included in this process to improve the level of cleaning.

Pelletizing Machines

Pelletizing reclaimed plastic is the final step in most recycling processes. Converting post-consumer plastic into pellets allows for easier distribution and remanufacturing, and ultimately benefits the speed and effectiveness of reintroducing recycled plastic into industrial manufacturing. After sorting, drawing, separating, and drying the reclaimed material, the flake stock is ready to be extruded into pellets.

Separating Equipment

To reduce the potential for stock contamination most recycled plastic undergoes separation treatments, which work to remove any attachments or non-reusable materials that may be present in a batch of flakes. Most separation processes can be categorized as “wet” or “dry” methods. Float tanks are the most common wet method, separating material based on density and whether it sinks or floats, while hydrocyclones use centrifugal force to divide material according to weight.