Protector Roll Feeder
- Even, uniform feed distribution
- Integrated drum magnet
- Self-cleaning screen
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From grain to feed
Hammer Mill 650
The Ottevanger Hammer Mill 650 is a robust grinder for consistent size reduction of granulates up to 20 mm. Depending on rotor speed and screen, it can mill down to about 200 microns while keeping a smooth product flow. All welded construction, an anti vibration base, and a balanced rotor deliver stable, low noise operation and long service life in continuous duty feed plants.
- Anti-vibration base and balanced rotor for low vibration
- Large access doors for fast service and cleaning
- Screen covers ~¾ of grinding circumference for high efficiency
Performance & Applications
Overview
Key benefits
Discover the key benefits of the Hammer Mill 650, designed for reliable, efficient grinding with minimal downtime.
- Fine grinding to approximately 200 μm, depending on screen and speed
- Stable running due to anti-vibration base and dust-protected bearing housings
- Large doors/hatches for easy inspection and rapid replacement of wear parts
- High grinding efficiency with a screen area covering nearly three-quarters of the circumference
- Screen changes without stopping the mill shorten recipe change-overs
Available executions
All machines can be customised. The Hammer Mill 650 is available in several sizes and configurations to match capacity and product demands.
- Type 650-375: single-rotation execution; Type 650-550: dual direction of rotation
- Fully enclosed feeder with permanent magnet; roll feeder with automatic self-cleaning magnet and stone trap
- Automatic feeder (optionally frequency-controlled)
- ATEX 22 certified components (on request)
Downloads
Technical Datasheet
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Reliable by design
Equipment
Roller Mill
- Dual-rotation feeder with bypass
- Precise gap control to 0.01 mm
- Riffled rollers with differential speeds
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Roll Feeder
- Uniform feed for stable loading
- Magnet with auto-cleaning catcher
- Frequency-controlled feed roller
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Your questions answered
FAQ
It grinds granulates up to 20 mm, with achievable particle sizes around 200 μm depending on the selected screen and rotor speed.
The 650-375 is available in single-rotation execution, while the 650-550 supports dual direction of rotation for balanced wear and longer component life.
No. The design allows quick and easy screen replacement without stopping the mill, reducing downtime.
The base plate is mounted on anti-vibration units and the rotor is precisely balanced, with dust-protected bearing housings for smooth operation.
A fully enclosed feeder with permanent magnet is standard, and a roll feeder with automatic self-cleaning magnet and stone trap is available; an automatic frequency-controlled feeder can also be supplied.
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