What machine can recycle waste polyethylene(PE) materials

Waste polyethylene (PE), including films, bags, and industrial packaging, pipes, container bottles, trash cans, toys, pharmaceutical packaging films, and infusion bags represents a massive environmental burden. Recycling this material demands specialized machine to transform waste polyethylene (PE) to value products. Here, we will take stock of the machines that enable PE recycling.

1.Waste PE compactor/pressing machine

PE plastics are pressed into bales by compactors to reduce the volume of waste and improve processing and storage efficiency.

Waste PE compactor/pressing machine

2.Waste PE shredder and crushers machine

Plastic Crusher is used to break large pieces of PE waste into smaller flakes or particles, making it easier to process.

Waste PE shredder and crushers machine

3.Waste PE extruder machine

A plastic extruder melts the shredded and crushed PE material and then forms it into pellets or other shapes. These pellets can be used to create new products. The extruder is commonly used to recycle PE into new plastic materials or film.

Limitations: It can only process clean, meltable plastics.

Waste PE extruder machine

4.Waste PE pelletizer machine

After extrusion, a pelletizer is used to cut the melted PE material into uniform-sized pellets. These pellets are then cooled and can be reused in manufacturing new plastic products.

Limitations: It is only suitable for meltable plastics. When the impurity content of waste plastics is high, it may cause uneven granulation and affect subsequent use.

Waste PE pelletizer machine

5.Waste PE pyrolysis machine

DOING waste plastic pyrolysis machines recycle waste polyethylene (PE) materials by thermal decomposition at high temperature and in the absence of oxygen, converting them into useful products such as fuel oil, gas and carbon black. This method is particularly suitable for processing various sizes of plastic waste, and can not only recycle PE, but also PP, PS,ABS. Here’s a detailed breakdown of how it works, its advantages, and key considerations:

Waste PE pyrolysis machine process

How Pyrolysis Recycles Waste PE

Process of DOING waste PE pyrolysis machine:

PE (LDPE/HDPE/LLDPE) is heated in an oxygen-free reactor at 300–500°C. The long polymer chains break down into smaller molecules through thermal cracking.

Outputs of DOING waste PE pyrolysis machine:

Pyrolysis Oil (60–80% yield) – Used as fuel for heavy oil generators, boiler heating, gypsum plants, glass plants, brick plants, steel plants, cement plants, etc. And after further distillation, plastic pyrolysis oil can be converted into plastic diesel, which can be used for industrial heating, heavy machinery such as trucks, ships, tractors, and diesel generators.

Carbon Black/Wax (5–15%) – Used in tires, paints, or as a filler. Or use DOING to provide carbon black pelletizers, which can be used as fuels such as industrial boiler fuels, power generation fuels, and metallurgical fuels after being pressed into pellets.

Syngas (10–30%) – Combustible non-condensable gases (CH₄, H₂) reused to heat the reactor.

DOING plastic pyrolysis machines product applications

Compared with pulverizers, extruders, granulators and catalytic cracking machines, DOING plastic pyrolysis machines are small-scale from 100kg to large-scale from 50ton, suitable for converting a variety of plastics into high-value products, with high conversion efficiency, and are the most cost-effective recycling method. If you want to efficiently recycle plastics other than PET and PVC, please feel free to consult our plastic pyrolysis machine.