Plastic Crusher with Metal Detector Solution

This high-efficiency crushing system consists of a conveyor belt, a metal detector, and a plastic crusher.

During the crushing process of plastic or other materials, metal impurities may be present in the raw materials. To effectively protect the crusher blades from damage and extend their service life, a metal detector is installed above the conveyor belt.

When materials containing metal pass through the metal detector, the conveyor belt will immediately stop and an alarm will be triggered. The operator can then remove the material, take out the metal, and resume the crushing process.

The metal detector features high sensitivity. Even if the metal is hidden inside the material or located at the bottom, or exists in very small quantities, it can still be accurately detected. Once metal is detected, the conveyor belt stops automatically and the alarm sounds simultaneously.

By using a metal detector, metal can be effectively prevented from entering the crusher, significantly extending blade lifespan and improving the customer's economic efficiency.

In traditional crushing systems, a magnetic plate is usually installed at the crusher hopper inlet to absorb metal and protect the blades. However, this method has clear limitations: it can only attract ferrous metals and cannot remove non-magnetic metals such as aluminum, copper, or stainless steel.

To overcome this limitation, we have upgraded the solution by integrating a conveyor system with a metal detector. This allows detection and removal of all types of metals, ensuring that no metal enters the crusher and causes damage.

As the customer has strict requirements on noise control, this crusher is designed with a soundproof structure:

Double-layer steel plates with sound insulation material filled inside to fully enclose the machine and reduce noise

Equipped with a medium-speed motor with a transmission ratio of 1:6, reducing operating speed and noise

Due to the enclosed soundproof design, the traditional rear feeding hopper opening method (such as screw or rear cylinder) is not suitable. Therefore, we adopt a side-mounted cylinder system for hopper opening, which is both convenient to operate and visually appealing.

Plastic Crusher Machine Specifications
Power	37 kW
Blade Quantity	4 fixed blades + 24 rotary blades
Blade Material	SKD
Start Control System	Star-delta starting system
Electrical Components	Schneider brand, ensuring stable and long-term operation

• We can customize different types of plastic crushers and integrated systems according to customer requirements, and provide on-site installation and commissioning by professional engineers.
• We have extensive experience in manufacturing plastic auxiliary equipment, including:
• plastic crushers, plastic mixers, washing lines, dewatering machines, vibrating screens, industrial water chillers, auto hopper loaders, and complete recycling systems.
• We are committed to providing customers with reliable solutions through advanced technology and high-quality equipment.