Waste glass comes from various sources—beer bottles, flat glass, automotive glass, and mirror glass with a silver coating on the back. Different types of glass have different compositions and structures, but the first step in recycling is always crushing. And the choice of crushing method directly affects the efficiency of subsequent sorting, cleaning, and reprocessing.
The toothed roll crusher uses shearing and compression for crushing, rather than high-speed impact. Two toothed rolls rotate in opposite directions. Material entering between the rolls is gripped by the teeth and pulled downward, where it is crushed under shearing and compressive forces. This crushing method offers several advantages when processing waste glass:
toothed roll crusher glass
Crushing and Impurity Separation Occur Simultaneously
Waste glass often carries impurities—plastic labels and metal caps on bottles, silver coatings on mirror glass, sealants on flat glass. The shearing and compression action of the toothed roll crusher can peel these impurities from the glass surface rather than crushing them into the glass fines. Impurities remain intact, making them easier to separate in subsequent processes such as magnetic separation, air classification, and eddy current separation.
Uniform Particle Size with Low Over-grinding
The key requirement in waste glass crushing is “uniform size, not excessively fine.” Excessive glass fines not only reduce sorting efficiency but also increase dust collection burdens. The toothed roll crusher controls discharge size by adjusting the roll gap, producing a concentrated particle size distribution with minimal powder generation—particularly suitable for brittle materials like glass.
High Tolerance to Moisture and Impurities
Recycled glass comes from complex sources, with some materials containing moisture or mixed with plastic and metal contaminants. The toothed roll crusher has no screen or grate structure—material is discharged directly after crushing. This design offers high tolerance to moisture content, resists clogging, and provides strong adaptability to complex feed materials.
crushed glass product
Customizable Tooth Profiles for Different Glass Materials
Toothed roll crushers offer various tooth profiles—long-tooth, wolf-tooth, square wave-tooth, pointed wave-tooth, and more. The appropriate tooth shape can be selected based on different materials and feed/discharge size requirements, making the equipment more efficient.
Hua Sheng Ming toothed roll crushers are suitable for glass raw materials, with good adaptability to waste glass bottles, flat glass, mirror glass, and more. The toothed roll crusher uses shearing and compression for crushing, making waste glass crushing more uniform and impurity separation easier.
