Hammer Mill 670
- Dual rotation for balanced wear
- Screen change without stopping
- Heavy frame with shock absorbers
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From grain to feed
Roll Feeder
The Ottevanger Roll Feeder delivers an even, controlled supply to hammer and roller mills. A frequency controlled feed roller spreads product across the full width, while an auto cleaning magnet and stone catcher remove ferrous and heavy contaminants to a debris tray. Available fully sealed, with an optional multiple dosing screw for difficult products, up to 60 t/h and 1,250 mm feed width.
- Uniform feed distribution for stable mill loading
- Integrated magnet with automatic cleaning and stone catcher
- Frequency-controlled feed roller speed
Performance & Applications
Overview
Key benefits
Discover the key benefits of the Roll Feeder, designed to protect downstream mills and keep the grinding process efficient.
- Provides steady, even loading to improve grinding efficiency and energy use
- Removes metal and stones before the mill to reduce wear and unplanned downtime
- Automatic magnet cleaning reduces manual intervention and improves hygiene
- Sealed design limits dust escape and simplifies housekeeping
- Optional multiple dosing screw maintains flow with high-fat or cohesive products
- Sized for capacities up to 60 t/h and feed widths up to 1,250 mm
Available executions
All machines can be customised. The Roll Feeder can be configured to match product behaviour, capacity and layout.
- Frequency-controlled feed roller (motor reducer with inverter)
- Iron extraction magnet with automatic cleaning
- Stone catcher
- Adjustable air inlet valve (manual or automatic model)
- Multiple dosing screw feeder for bulky/low-transportability products
- Automatic product load monitoring (on request)
Reliable by design
Equipment
Crumbler
- Independent rollers for precision
- Optional remote roller adjustment
- Easy cleaning and maintenance
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Roller Mill
- Dual-rotation feeder with bypass
- Precise gap control to 0.01 mm
- Riffled rollers with differential speeds
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Your questions answered
FAQ
It meters product evenly into the hammer or roller mill and removes metal and stones, protecting the mill and stabilising performance.
By a frequency-controlled motor reducer driving the feed roller, allowing precise adjustment to the mill’s load.
A permanent magnet with automatic cleaning extracts iron; a stone catcher removes heavy contaminants. Debris is collected in a tray.
Yes. An optional multiple dosing screw feeder keeps poor-flow or high-fat materials moving evenly to the mill.
Typical capacity is up to 60 t/h with feed widths up to 1,250 mm; project-specific sizing is selected during engineering.
Let's talk
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Whatever your production needs, we have the equipment and process expertise to deliver the right solution. Contact us today and let’s talk.
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