Glass Cullet

Every glass plant wants more cullet in the batch, and every glass plant pays for it in wear and sorting.

Wear is different here

Sharp glass edges cut belt covers and chute liners rather than polishing them.

• Thick, replaceable liners and belt covers specified for cut resistance.
• Low drop heights to limit both further breakage and impact damage.
• Chute design that keeps material sliding on a bed of its own kind.

Contamination control

Ceramics, stones and porcelain do not melt at furnace temperature and appear as inclusions in the product.

Optical sorting, magnets, eddy current separators and screening together determine whether the cullet is usable at high substitution rates.

Organic residues from the collection stream burn off, but they also create odour and sticky deposits in storage.

Fines and dust

Crushing produces a fine fraction that is respirable and contains crystalline silica.

Extraction at transfer points and enclosed conveying protect both the operators and the plant environment.

Storage and feeding

Cullet silos need steep, lined walls and outlets sized for the largest fragment, and vibrating feeders are preferred over screws for abrasion reasons.

What to establish before buying equipment

• Size distribution and the largest fragment that will arrive.
• Contamination profile of the supply stream.
• Required substitution rate, which sets the sorting investment.
• Wear part strategy and inspection interval.