Choosing The Right Plastic Crusher Machine

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With the increasing awareness of plastic waste recycling, choosing a suitable plastic crusher machine is crucial.

Choosing The Right Plastic Crusher Machine


Plastic Crusher Machine  Selecting the Model Type

There are many types of crushers on the market, each with unique features and benefits. One of the main factors to consider when selecting a crusher is the type of material to be crushed. The plastic’s thickness, shape, and density will affect the crusher choice.

The power of the crusher is also an important consideration. A more powerful crusher can handle harder, more durable materials.


Plastic Crusher Machine: Choosing the Right Blade Type

The type and design of the blades, which are an essential component of used plastic, affect the crushing effect and efficiency. The following is a list of critical factors to consider when selecting a blade:


  • Alloy steel: Durable and wear-resistant, suitable for medium to high-hardness plastics.
  • Tool steel: High hardness and toughness, suitable for hard plastics.
  • High-speed steel: High temperature and wear-resistant, ideal for high-capacity crushing


  • Flat knife: suitable for thin-walled and flexible plastics.
  • Zigzag knife: can tear and cut thick plastics.
  • H-shape knife: highly efficient in crushing hard plastics and PET bottles.


  • The fixed blade is mounted on the cutter plate and is suitable for general crushing operations. The adjustable blade allows spacing adjustment for different thicknesses of plastics.

Edge Type

  • Single edge: simple and economical, suitable for softer plastics.
  • Double edge: sharp and durable, ideal for crushing hard plastics.
  • Four edges: sharper and longer life, can improve grinding efficiency


Plastic Crusher Machine: Assessing Capacity Requirements

Capacity is the amount of waste plastic that can be processed by a shredder in a given period. Knowing how much waste plastic you produce will help you choose the suitable machine for your needs. Here are some factors to consider:

Daily Waste Plastic Generation:

  • Determine the amount of waste plastic you generate daily, including its weight or volume.

Hours of operation:

  • Consider how many hours per day your crusher will operate and the machine’s start and stop times.

Type of waste plastic:

  • Different types have different densities and hardnesses. This will affect the processing capacity of the crusher.

Size of waste plastic:

  • Large pieces may require a larger crusher or pre-crushing.

Required crushing fineness:

  • Depending on your downstream application, you may need to adjust the size of the crusher cut. Finer crushed materials require longer processing times.

After evaluating your capacity needs, you can select a crusher with enough capacity to meet your operational load. Consider whether the machine’s hourly capacity (usually kilograms or tons) will meet your production goals. Choosing a machine with too little capacity can lead to production bottlenecks and delays, while choosing a machine that is too large can lead to over-investment.

Also, the crusher’s hopper capacity and discharge system should be considered. The feed hopper should be large enough to hold your waste plastics, and the discharge system should be able to move the crushed material at the speed you need. These factors will affect your overall crushing efficiency and productivity.

Plastic Crusher: Assessing Capacity Requirements

Daily Waste Plastic GenerationDetermine the amount of waste plastic you generate daily, including its weight or volume.
Operation timeConsider how many hours per day your crusher will operate and consider the machine start and stop times.
Type of Waste PlasticDifferent types of waste plastics have different densities and hardnesses. This affects the capacity of the crusher.
Size of waste plasticLarge pieces of waste plastic may require a larger crusher or pre-crushing.
Required crushing finenessDepending on your downstream application, you may need to adjust the cut size of the crusher. Finer crushed materials require longer processing times.


Plastic Crusher Machine: Proper Installation and Maintenance

Proper installation is essential to ensure optimum performance and longevity of the crusher. The following steps are listed below:

Select a suitable location:

  • The crusher should be placed in a well-ventilated area with sufficient working space.

Installation Foundation:

  • The crusher should be installed on a solid foundation to prevent vibration and movement.

Connecting Power:

  • Ensure the power supply is wired according to the manufacturer’s specifications and adequately grounded.

Connect the feed system:

  • Connect the feeder or conveyor belt to the feed opening, depending on the crusher model.

Test Run:

  • Perform a test run to check that the crusher is operating correctly before starting production.

Regular maintenance is essential to keep the crusher in optimum condition. The following maintenance tasks are recommended:


  • Clean the crusher regularly to remove plastic and dust buildup. Clean the blades, filter, and discharge opening.

Replace blades:

  • Blades must be replaced when dull or damaged. Follow the manufacturer’s guidelines for replacement.


  • Regularly lubricate moving parts to minimize friction and wear. Use the manufacturer’s recommended lubricant.


  • Check electrical wiring for damage or wear. Replace damaged wires periodically.

Monitor temperature:

  • Overheating can damage the crusher. Monitor crusher temperature and take steps to prevent overheating.


Proper Power Requirements for Plastic Crusher Machine

When selecting a waste plastic crusher, it is essential to consider the appropriate power requirements. The power requirement should be sufficient for the volume of waste plastic to be processed and the crushing effect to be achieved.

Factors affecting power requirements include:

  • Type of plastic: Different types of plastic have different hardnesses and toughnesses and require different power levels for effective crushing.
  • Crushing size: The smaller the crushing size, the greater the power required.
  • Throughput: The throughput of the crusher affects the amount of power required. The larger the capacity, the greater the energy required.

There are also other factors to consider:

  • Voltage and frequency: Make sure the crusher matches the available power.
  • Cooling system: High-power crushers may require a cooling system to prevent overheating.
  • Safety features: Select a crusher equipped with safety features such as overload protection and emergency stop.

To determine the appropriate power requirements, it is recommended to consult with a supplier of waste plastic crushers. They can provide recommendations based on specific needs to ensure that the most appropriate model for crusher operation is selected.


Conclusion of Plastic Crusher Machine

By understanding the different model types, blade types, capacity requirements, installation and maintenance requirements, and power needs, companies can find a solution that meets their specific needs and maximizes the profitability of their recycling operations. With a suitable crusher,

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How do I determine which model of plastic crusher machine I need?

  • The choice of model depends on the type of material to be crushed, the size of the crusher required, and the production capacity needed. Please seek expert advice to determine the model that best meets your needs.

What blade type is best for crushing used plastic?

  • The appropriate blade type depends on the hardness and toughness of the material. For used hard plastics, it is recommended to use durable alloy steel blades with sharp edges and robust construction.

How do I estimate the appropriate power requirement for a plastic crusher machine?

  • The power requirement depends on the type of material to be crushed, the feed size, and the required throughput. Please consult a professional to calculate the exact power requirement for your specific application.
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