The Boliden Allis vibrating screen is a robust solution for aggregate and sand processing plants, designed to handle high-capacity screening with precision. Its heavy-duty construction ensures durability in demanding environments, making it ideal for primary, secondary, and tertiary screening stages in crushing circuits.
– Deck Options: Single, double, or triple decks for multi-size separation.
– Screen Size: Up to 3.6m x 7.3m (12’ x 24’) for large-scale operations.
– Capacity: 50–1,200 TPH depending on material and mesh size.
– Drive Mechanism: Dual eccentric shaft with grease-lubricated bearings.
– Material: High-tensile steel frames and polyurethane/piano wire mesh.
The screen excels in closed-circuit systems with cone crushers or VSI (Vertical Shaft Impactors) for producing graded aggregates (0–5mm, 5–20mm). Its adjustable amplitude and frequency optimize efficiency for varied materials like granite, limestone, or recycled concrete.
Q: How to reduce screen blinding?
A: Use anti-clogging meshes or ball tray decks for sticky materials.
Q: Recommended maintenance interval?
A: Inspect bearings every 500 hours; replace screens every 6–12 months based on abrasion.
A quarry upgraded to a Boliden Allis 3-deck screen (2.4m x 6m), achieving 95% screening efficiency for 0–32mm aggregates. Downtime reduced by 30% due to modular panel design enabling rapid mesh replacement.
For tailored solutions, consult engineering data sheets to match screen models with feed gradation and throughput goals.
