Roller Mill
- Dual-rotation feeder with bypass
- Precise gap control to 0.01 mm
- Riffled rollers with differential speeds
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From grain to feed
Protector Roll Feeder
The Ottevanger Protector Roll Feeder is installed before a roller mill to pre clean and distribute product evenly. It screens out coarse debris and removes ferrous particles with a drum magnet, using self cleaning screen strips for reliable separation. Contaminants are discharged by a shaftless screw, with a by pass valve for oversize recirculation and large hatches for quick inspection and cleaning.
- Even, uniform feed distribution to the roller mill
- Integrated drum magnet for ferrous removal
- Self-cleaning screen with adjustable vibration amplitude
Clean feed, protected milling
Performance & Applications
Overview
Key benefits
Discover the key benefits of the Protector Roll Feeder, designed to protect the roller mill and stabilise upstream product flow.
- Protects the roller mill from uncontrolled wear and potential damage caused by metal fragments, stones and clods
- Ensures an even spread of material across the screen and working width of the mill for consistent performance
- High self-cleaning action of alternating stationary and vibrating strips keeps separation efficiency stable
- Quick access through large, lightweight hatches simplifies cleaning and inspection
- Debris is automatically collected and conveyed to a bin, reducing manual handling and downtime.
Available executions
All machines can be customised. The Protector Roll Feeder can be configured to match product characteristics, capacity and mill width.
- Screens with various gap widths; vibration amplitude adjustable
- Integrated drum magnet with timed release to vibrating plate
- By-pass valve with three positions for capacity and oversize management
- Shaftless screw conveyor for debris removal; optional external debris bin
- Executions sized to suit single, double or triple roller-mill units (inferred from application scope; confirm during engineering)
Downloads
Technical Datasheet
Download
Reliable by design
Equipment
Roll Feeder
- Uniform feed for stable loading
- Magnet with auto-cleaning catcher
- Frequency-controlled feed roller
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Hammer Mill Perfect 30
- Anti-vibration base with shock absorbers
- Fully welded, robust construction
- Full-circumference screen
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Your questions answered
FAQ
It removes coarse contaminants and ferrous metal before the roller mill, preventing uncontrolled wear or damage and reducing unplanned downtime.
A feeder roll spreads the product uniformly over a parallel-strip screen so material reaches the roller mill evenly across the working width.
A drum magnet captures ferrous particles; stones, clods and other oversized pieces are separated on the screen and discharged by a shaftless screw to a debris bin.
Yes. A three-position by-pass valve can redirect large particles back to the process flow while metal removal remains active.
Alternating stationary and vibrating screen strips provide high self-cleaning capacity, and large lightweight hatches offer easy access for inspection and cleaning.
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