Xrido Car Shell Shredder for Metal Recycling High Efficiency

Working Principle

• Multi-axis shearing: The shredder is equipped with multiple sets (typically 2-4 axes) of rotating (moving) and fixed (stationary) cutting tools. The cutting tools are made of high-hardness alloy steel (such as H13 and SKD11) and vacuum-hardened for exceptional wear resistance. The high-speed rotation of the rotating blade (15-30 rpm) creates a powerful shearing force against the stationary blade, tearing the metal sheet of the vehicle body into small pieces.

• Extrusion Crushing: Some models are equipped with a crushing roller or impact plate, which simultaneously applies pressure to the body while shearing. This enhances the crushing effect, especially for high-strength steel bodies (such as B-pillars and anti-collision beams) or densely packed aluminum alloy panels.

• Intelligent Speed Control: A variable frequency motor adjusts the blade speed to accommodate different materials (such as steel and aluminum alloy) and body thicknesses (0.5-3mm), avoiding overload and energy waste.

Car Shell Shredding and Recycling Process:

The typical process flow of a modern scrap car dismantling plant is as follows, with the shredder at the heart of the pre-processing stage:

1. Pre-processing (Dismantling and Sorting):

• Removal of Non-metallic Components: Hydraulic shears, pneumatic tools, and other tools are used to remove non-metallic components such as interior trim (seats, carpets), glass, rubber tires, and plastic parts (bumpers, dashboards) to reduce the subsequent crushing load.

2. Shredding and Crushing:

• The pre-cut car shell enters the shredder and is broken into uniform small pieces (10-50mm). A cooling system (water spray or air cooling) controls the temperature to prevent aluminum chips from splashing and oxidation.

• During the shredding process, magnetic materials (such as steel screws and rivets) are separated by magnetic separation drums, reducing the pressure of subsequent sorting.

3. Sorting:

• Eddy current sorting: Utilizing aluminum's electrical conductivity, an alternating magnetic field generates repulsive forces to separate aluminum alloy fragments (lower density) from steel fragments (higher density).

• X-ray/Spectroscopic Sorting (Optional): For mixed alloys (such as steel and aluminum alloys), X-ray fluorescence (XRF) or near-infrared spectroscopy (NIR) is used to identify the materials and achieve high-purity sorting (aluminum recovery purity > 98%).

Scrap Metal Shredding & Crushing Line

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