
Thermal Break Aluminum Shredding Line Working Process
The thermal break aluminum shredding line is designed for processing waste thermal break aluminum profiles, aluminum window and door frames, aluminum-plastic composite profiles and scrap aluminum profiles. The line usually includes primary shredding, secondary crushing, magnetic separation, screening and eddy current separation.
Primary Shredding
Bulky thermal break aluminum scrap is first fed into the twin shaft shredder. The two cutter shafts rotate at low speed and high torque, using shearing, squeezing and tearing forces to reduce large aluminum profiles into smaller strips or chunks. This step prepares the material for downstream crushing and separation.
Secondary Crushing and Iron Removal
After primary shredding, the material can be sent to a hammer crusher for further size reduction. The crushing process helps separate aluminum from plastic strips, rubber parts and other attached materials. A magnetic separator can then remove ferrous impurities such as screws, nails, hinges and handles.
Screening and Grading
The crushed material can pass through a vibrating screen for particle size classification. Different screen openings can be selected according to the material condition and separation requirements. Typical fractions may include fine, medium and coarse particles for different downstream sorting processes.
Eddy Current Separation
After screening, the material can be processed by an eddy current separator. Conductive non-ferrous metals such as aluminum are separated by the repulsive force generated through electromagnetic induction, while non-metallic materials such as plastic and rubber are discharged separately.
The final separation effect depends on the material composition, particle size, feeding thickness, screen configuration and eddy current separator settings.