Bottle shredder is the key equipment for processing waste plastic bottles. Among them, the blade is the core element of the automatic PET bottle crushing machine, which determines its performance and efficiency.

water bottle crusher
water bottle crusher

Construction of bottle shredder blades

The blades of industrial plastic shredder machines are usually made of high-quality alloy steel to ensure wear and corrosion resistance. The shape and size of these blades will vary depending on the manufacturer and model, but they usually have sharp cutting edges to ensure efficient cutting. The number and arrangement of blades also varies from model to model; some models may have a single layer of blades, while others may have a multi-layer blade layout to increase cutting efficiency.

Working principle of plastic crusher blades

The principle of operation of the blades in a bottle shredder is relatively simple but very efficient. First, the plastic bottles to be processed are placed into the feed opening of the crusher and then the blades begin to rotate. The rotating blades cut the plastic bottles into small pieces by applying pressure and cutting action. Positioning blades and fixed blades help stabilize the position of the plastic bottles, ensuring precise and uniform cutting. The crushed plastic pieces can be recycled in the next step.

blades shaft (inside structure)
blades shaft

Advantages of plastic shredder blades

  • High efficiency: The blades of the bottle shredder can quickly cut plastic bottles into small pieces, which improves the efficiency of waste disposal.
  • Wear-resistant: Since cutting plastic causes wear and tear, the blades are usually made of high-strength and wear-resistant materials for a long service life.
  • Adjustability: Users can easily adjust the cutting size and shape of the blades as needed to meet the needs of different types of plastic bottles.

How to choose the right blade?

Choosing the right blade is critical to the performance of the bottle shredder. Here are some key factors to consider:

  • Type of material: Select the blade according to the type of waste plastic bottles to be processed; different types of plastic require different types of bottle shredder blades.
  • Size and shape of blade: Choose the right blade according to the required crushing size, smaller blades are suitable for fine crushing, and larger blades are suitable for coarse crushing.
  • Blade quality: Choose high-quality blades to ensure excellent durability and wear resistance.
  • Maintenance and replacement costs: Consider the life of the blades as well as replacement costs for budgeting and maintenance scheduling.
  • Brand reputation: Choose a reputable manufacturer for high-quality blades and after-sales service.
plastic bottle crusher machine
plastic bottle crusher machine