HDPE/PP plastic recycling machine

Other production lines

Table of Contents

HDPE/PP plastic recycling machine applies to milk bottles, engine oil bottles, big blue drums, environmental dust bins, plastic tables, chairs, etc.

HDPE/PP rigid plastics recycling’s key factor is removing all kinds of impurities from the material. The Boxing Team is familiar with the diflerentcharacerisics of various impurities; the single machine design of different function performances is for the separation of the other modular forms that connect each unit. t can promote the capacity expansion and industrial upgrading of the follow-up equipment with the most cost-effective input, eliminate the pollutants in the initial stage, save energy and reduce energy consumption, and effectively improve product quality.

HDPE/PP plastic recycling machine


Elements for optimizing HDPE recycling machine

Ensure that the HDPE/PP plastic recycling machine is a smooth fit and achieve the recovery of the best rate key while optimizing the critical elements of the washing process. The following are the key elements to optimize the HDPE/PP plastic washing line:

Raw material supply

  • Quality feedstock restoration is critical to improving cleaning efficiency and final product quality. This includes sorting and separating waste plastics and downsizing to fit the cleaning equipment.

Washing technology selection

  • The appropriate cleaning technology is selected to eliminate bottlenecks depending on the type and degree of contamination of the used plastics. Standard cleaning technologies include friction, flotation, and chemical washing, with each spindle technology having advantages and disadvantages.

Washing agent use

  • Appropriate cleaning agents help dislodge contaminants, grease, and so on. Select the correct cleaning agent based on the waste plastic type, the contamination degree, and the intended reuse application. Highly effective cleaners may be more suitable for highly contaminated plastics, while mild detergents are suitable for lightly contaminated plastics.

Water Treatment Optimization

  • The water treatment system is an integral part of a plastic washing line. Optimizing the water treatment system reduces efficient water consumption, lowers wastewater treatment costs, and improves reclaimed water quality. This includes installing water filtration and reuse systems and monitoring water quality to ensure environmental compliance with regulations.


Selection of equipment for hard HDPE recycling machine

Choosing the right equipment is critical to efficiently building a hard plastic cleaning line. Some of the key considerations are listed below:


  • The crusher breaks and splits the hard plastic blocks or crushes them into smaller particles, then processes them for subsequent processing. Choose a crusher with durable construction and high capacity to ensure smooth operation.

Cleaning Systems:

  • Cleaning systems remove systems and structures from the surface of plastic pellets. Consider multi-stage washing that includes wet, hydrophobic, and rinsing steps to remove all residues.

Separation Equipment:

  • Separation equipment separates plastic pellets from others (e.g., metal and paper). Select equipment with high efficiency and sorting efficiencies to ensure product accuracy.

Drying Systems:

  • Drying systems remove moisture from plastic pellets to prevent problems during subsequent processing. Choose an efficient drying system with evaporation and hot air circulation to dry pellets quickly and thoroughly.


  • Pelletizers melt and homogenize dried plastic pellets into granules. Select a pelletizer with variable speed control and high capacity to meet varying production needs.


Innovative technology for HDPE/PP plastic recycling machine

Optimizing waste plastics recycling has become a top priority as environmental awareness rises. Innovative technologies in HDPE/PP plastic washing lines play a pivotal role in enhancing the efficiency of waste plastic recycling and promoting the sustainable use of resources. A few key innovations are listed below:


  • Hydrocyclones utilize centrifugal force to separate plastic pellets from nylon effectively. With optimized geometric design and flow dynamics, these devices provide high separation accuracy and ensure the purity of the recovered plastics.

Flotation Technology:

  • Flotation technology is based on the difference in specific gravity of different materials. Plastic particles are suspended in water by adding particular chemicals, which sinks, allowing for efficient separation.

Optical sorting:

  • Optical sorting utilizes sensors and algorithms to identify and sort different plastics. These systems automate the grading of waste plastics based on color, shape, or other specific characteristics, enhancing recovery quality. In addition, innovative cleaning technologies, such as ultrasonic cleaning and chemical treatment, help to reduce stubborn plastics and increase the value of recycling efficient plastics. Combining these innovative technologies enables HDPE/PP plastic washing lines to process large quantities of waste plastics, significantly contributing to the circular economy.
Output (KG/H)5001000200030004000
Water consumption (T/H)
Installed power (Kw)80-100120-180180-260260-330350-450
Labor requirements2-32-33.5465-8
Factory area (LxWxH) M32x6x538x6x542x6x545x7x550x7x5


Optimization of water treatment in HDPE/PP plastic washing line

Water is critical to the fit of an HDPE/PP plastics washing line; it is used to wash plastics and rinse equipment and excellent machinery. Optimizing water treatment is, therefore, vital to ensuring a high-quality recycled plastics process and reducing costs.

Water-saving measures

  • use a closed recirculation system to reuse wash water.
  • Installs water flow sensors to monitor and adjust the water volume.
  • Uses high-efficiency nozzles and cleaning technology to reduce water consumption.


  • regularly monitors water quality to ensure compliance with cleaning standards.
  • The use of filtered and soft water reduces equipment and temperatures.
  • It uses chemical treatment to control bacterial and algae growth.

Wastewater Treatment

  • Establish a regulatory-compliant wastewater treatment system to minimize environmental impact.
  • Tgraded sedimentation and chemical flocculation are used techniques to remove solids and suspension.
  • Consider water reuse to reduce water costs and environmental burden.

By implementing these optimization measures, HDPE/PP plastic washing lines can significantly save water, reduce operating costs, and improve the quality of recycled plastics, contributing to perpetual waste plastic recovery.

Optimization of water treatment in HDPE/PP plastic washing line
Optimization MeasuresWater saving measuresquality managementwastewater treatment
Measures Closed-loop system Flow Sensors

· High-efficiency nozzles and cleaning technology

· Regular quality monitoring· Filtration and water softening equipment

Chemical treatment

Regulatory-compliant treatment systems graded sedimentation and chemical precipitation.

Wastewater reuse


Common Problems and Solutions for Hard Plastic Washing Line

Hard plastic cleaning lines may encounter various problems during operation. The following are common problems and their corresponding solutions:

Problem 1: Inefficient cleaning

  • Causes: Worn equipment, dull blades, feed rate too fast
  • Solution: Regular maintenance of equipment, replacement of passivated blades, adjustment of feed rate

Problem 2: foreign matter in the cleaning process

  • Reason: foreign matter mixed in raw materials, equipment did not complete the runway maintenance
  • Solution: Strictly control the quality of raw materials, strengthen equipment maintenance

Problem 3: Scratches on the surface of plastic granules

  • Reason: the cleaning blade is not sharp enough and the cleaning time is too long.
  • solution: adjust the blade sharpness, localized cleaning time

Problem 4: The cleaning water consumption is too high

  • Reason: poor equipment design, water inlet valve failure
  • solution: choose energy-efficient equipment, check the water inlet valve and the original repair

Problem 5: equipment gap failure

  • Reason: improper equipment operation, inadequate maintenance
  • Solution: Follow equipment operating instructions, perform regular preventive maintenance

Hard plastic washing lines can operate efficiently and provide high-quality recycled plastic pellets with proper maintenance, troubleshooting, and optimization.


Classification and sorting optimization in HDPE/PP plastic washing line

Sorting and binning are critical steps in optimizing your HDPE/PP plastics washing line to help improve recovery efficiency and obtain high-quality recycled pellets. A deciphered sorting and separation process maximizes the recovery of the target material and reduces the impact of pivots and interruptions in subsequent processing steps.

Sorting Technology

  • Density Sorting: Sorting utilizing flotation or settling tanks to separate HDPE and PP materials based on differences in plastic density.
  • Optical sorting: Separates different types of plastics by detecting characteristics such as color, transparency, and shape of the material through sensors.
  • Metal sorting: Replacing metals in the damaged using a magnetic separator or eddy current separator to avoid damaging the equipment.

Sorting Strategies

  • Pre-sorting: Initial sorting is performed during cleaning to remove easily modified drawings such as paper, metal, and considerable foreign objects.
  • Multi-stage sorting: Multiple sorting steps are used to remove different types of brains to improve sorting accuracy gradually.
  • Automated control: monitors the sorting process using sensors and computerized systems to ensure accuracy and efficiency.

By optimizing the classification and sorting process, the HDPE/PP plastic washing line can effectively improve recovery efficiency, avoid pollution, and produce high-quality recycled pellets, significantly contributing to the circular economy.

**Learn more**



Rigid plastic cleaning lines are used in various applications, whether for food containers, automotive parts, or industrial supplies, to enhance internal structures and ensure material quality effectively. As technology advances, a new generation of hard plastic cleaning lines is being introduced, which are more energy-efficient and automated, further improving cleaning results and overall efficiency.

On the road towards sustainable development, the hard plastic cleaning line will continue to play an essential role. Through proper maintenance and operation, we can extend the service life of the equipment, optimize the cleaning performance, and do our part for the cause of environmental protection.



What is a hard HDPE recycling machine?

  • A hard plastic cleaning line is an industrial equipment designed to clean hard plastic materials. It consists of a series of machines and processes that can lead to regrets, pauses, and other surgeries so that hard plastics can be recovered and reused.

What are the benefits of a hard HDPE plastic washing line?

  • Rigid plastic washing lines offer several benefits, including increased recycling rates, lower waste disposal costs, reduced environmental impact, and promoting sustainability by reintroducing recycled materials into manufacturing.

How do I choose the right hard HDPE plastic washing line?

  • Choosing the right hard plastics washing line depends on various factors, including the type of plastics to be processed, the required washing capacity, available space, and budget. Evaluating these factors and consulting with an experienced supplier is essential to determine the best solution for your needs.
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