Polygonmachine PSB Series Stonebox Hoppers and Surge Bins are engineered to provide efficient material buffering, controlled discharge, and smooth material flow within aggregate, mining, and recycling facilities. Designed to store crushed or screened material before further processing or loading, these units minimize downtime, prevent bottlenecks, and ensure consistent feed rates to conveyors or crushers.
| Model | Capacity (m³) | Feed Opening (mm) | Discharge Width (mm) | Height (mm) | Weight (kg) | Lining Type |
|---|---|---|---|---|---|---|
| PSB-15 | 15 | 2500 x 2500 | 1000 | 2800 | 4500 | Hardox / Rubber |
| PSB-25 | 25 | 3000 x 3000 | 1200 | 3200 | 6200 | Hardox / Rubber |
| PSB-40 | 40 | 3500 x 3500 | 1500 | 3700 | 8500 | Hardox / Ceramic |
| PSB-60 | 60 | 4000 x 4000 | 1600 | 4200 | 10800 | Hardox / Ceramic |
| PSB-80 | 80 | 4500 x 4500 | 1800 | 4800 | 13200 | Hardox / Ceramic |
Heavy-Duty Structural Design
Built from reinforced steel with wear-resistant liners, the PSB Series withstands high-impact loading and continuous operation in harsh quarry and mining environments.
Optimized Flow Geometry
Steep sidewall design prevents bridging and promotes consistent material discharge, reducing downtime caused by blockages.
Modular Construction
Bolt-together modular frames allow easy transportation, installation, and maintenance without requiring extensive welding.
Variable Discharge Control
Can be equipped with belt feeders, apron feeders, or vibrating feeders for controlled, precise material flow to downstream equipment.
Replaceable Wear Liners
Available with Hardox, rubber, or ceramic liners for enhanced abrasion resistance and extended service life.
Optional Load Sensors and Level Indicators
Integrated weighing and level detection systems provide real-time monitoring, ensuring optimal load management and preventing overflows.
Maintenance Access Platforms
Safe maintenance access with guard rails, ladders, and service platforms designed according to CE and ISO standards.
Storage Volume: 15–80 m³
Feeding Capacity: up to 1,200 tph depending on configuration
Liner Hardness: 400–600 HB (Hardox 400/600 or equivalent)
Discharge Flow Rate: Adjustable through feeder control (VFD or hydraulic)
Operating Angle: 50°–65° depending on material type
Maintenance Interval: 1,000 hours average service cycle
Aggregate Plants: Acts as an intermediate buffer between crushers and screens to balance feed rates.
Mining Operations: Stores ore or mineral feedstock before conveying or processing.
Recycling Facilities: Handles construction waste and aggregates for controlled re-feed to crushers.
Loading Systems: Functions as a surge bin for truck, rail, or ship loading systems.
