Industrial hammer mill for granulate grinding
Optimize the grinding process in feed production with a high-efficiency solution that reduces particle size to approximately 200 microns, ensuring uniformity in end products like poultry feed pellets and soybean meal.

Grinds and Mills Granules for Feed Production
The Hammer Mills 650 Series from Ottevanger Milling Engineers is an expertly engineered solution for achieving precise granule size in feed manufacturing processes. This series features models like Type 650-375 and Type 650-550, renowned for their solid all-welded construction and anti-vibration design, ensuring seamless integration into feed and grain processing lines. The mills are capable of processing granule sizes up to 20 mm and reducing them to approximately 200 microns, meeting the needs of industries such as animal feed, pet food, and aquaculture feed production.
Equipped with a mechanically driven, fully enclosed vibrator feeder, the system ensures even feed distribution and is complemented by an automatic load control for continuous operations. The Type 650-550’s dual direction of rotation enhances its versatility, while an automatic self-cleaning magnet and stone trap improve efficiency and longevity. With options for ATEX 22 certified components, these hammer mills are designed to handle a variety of materials in a safe and energy-efficient manner, making them ideal for facilities focused on high yield and low energy consumption. Available configurations allow customization to meet specific processing needs, ensuring robust performance in demanding environments.
Benefits
- Ensures consistent feed quality by achieving precise particle size reduction.
- Increases processing efficiency with a dual-direction rotation and even feed distribution.
- Minimizes energy usage through optimized motor control and load balancing.
- Enhances safety and compliance with ATEX 22 certified options.
- Lowers maintenance costs with easy access for parts replacement and automatic cleaning systems.
- Applications
- Handling,Pet food,Oilseed processing,Soybean processing,Aqua feed,Concentrates,Premix,Grain storage,Compound feed
- End products
- Sunflower oil,Animal feed concentrates,Grain transport systems,Dog kibble,Bulk grain silos,Soy flour,Rapeseed oil,Poultry feed pellets,Fish pellets,Soybean meal,Vitamin premix
- Steps before
- Product intake,Cleaning,Pre-cleaning,Dosing
- Steps after
- Sieving,Pelleting,Mixing,Conditioning,Drying,Cooling
- Input ingredients
- granulates,maize,barley
- Output ingredients
- ground product,particle size down to approx. 200 micron
- Market info
- Ottevanger Milling Engineers is renowned for designing and manufacturing innovative milling equipment and complete production lines for the grain processing industry, including feed mills, flour mills, and biomass processing, with a reputation for quality, efficiency, and customized solutions.
- Capacity
- 2 - 12 tons per hour
- Particle Size Reduction
- Approx. 200 micron
- Motor Power
- 30 - 90 kW
- Screen Surface
- 0.54 - 2 x 0.37 m²
- Rotation Type
- Single,Dual Direction
- Vibrator Feeder
- Fully enclosed with permanent magnet
- Automatic Self-cleaning Magnet
- Included
- Weight (Excl. Motor)
- 750 - 1175 kg
- ATEX Certification
- ATEX 22 certified components
- Load Control
- Automatic
- Feeder Type
- Drum type
- Working Mechanism
- Grinding granulates
- Flow Type
- Batch
- Automation level
- Automatic load control
- Vibration Control
- Anti-vibration units
- Direction of Rotation
- Single and Dual
- Feeding System
- Mechanically driven feeder
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Material Size
- Up to 20 mm diameter
- Construction type
- Solid all-welded
- Screen size
- Up to 200 micron
- Control panel type
- Fully enclosed with permanent magnet
- Discharge method
- Automatic self-cleaning
- Feed method
- Mechanically driven feeder
- Vibration control
- Mounted on anti-vibration units
- Control panel type
- Manual / PLC
- Direction of rotation
- Single / Dual
- Feeder type
- Automatic / manual
- Screen replacement system
- Quick change