Grizzly Feeder

The First Line of Defense in Scrap Processing

Grizzly feeders serve as the critical pre-sorting stage in metal shredding operations, efficiently separating oversized scrap from processable material before it enters the shredder. These rugged screening systems combine brute strength with precise spacing to protect downstream equipment while optimizing material flow.

Engineered for Extreme Material Handling

Constructed from heavy-duty AR400 or AR500 steel bars, grizzly feeders feature adjustable gap settings (typically 6-24 inches) to accommodate different scrap profiles. The inclined design utilizes gravity-assisted material flow, while vibratory mechanisms prevent bridging and ensure consistent feed rates. Heavy-duty impact plates at the discharge end protect against the punishing forces of falling metal scrap.

Operational Efficiency in Scrap Yards

During operation, grizzly feeders demonstrate remarkable sorting intelligence. Their stepped or sloped configurations create multiple screening opportunities, while the rigid bar structure withstands constant impacts from heavy scrap. Oversized items like engine blocks and structural steel slide off for separate processing, while appropriately sized material falls through to the shredder feed conveyor. Advanced models incorporate variable vibration intensity that automatically adjusts based on material flow characteristics.

Maintenance for Continuous Protection

Regular grizzly maintenance prevents unplanned downtime in shredding operations. Daily inspections should check for bent or broken bars, while monthly measurements track wear patterns in high-impact zones. Vibratory mechanism bearings require frequent lubrication, and impact plates need periodic rotation or replacement. Many operations now use laser scanning to monitor bar spacing and predict replacement intervals before screening performance degrades.

Strategic Integration in Recycling Systems

When positioned correctly at the head of the processing line, grizzly feeders significantly reduce shredder wear and improve overall system efficiency. Their operation prevents costly jams and protects downstream equipment from damage while ensuring optimal material density enters the shredder chamber. Some advanced installations incorporate automated sorting arms that actively remove oversized items based on sensor input.