Hammer mills for high-efficiency grinding in feed production
Optimize your feed production with high-efficiency grinding that maximizes output while minimizing energy usage, designed to streamline operations in continuous processing lines.

Grinds Various Feed and Processed Grains
The Hammer Mills GHM series from Ottevanger Milling Engineers are engineered for high-efficiency grinding applications across diverse industries, including feed manufacturing and grain processing. These mills are equipped with vertically adjustable breaker plates for an asymmetrically formed grinding chamber, enhancing impact force and reducing screen wear. This series supports capacities of up to 60 tons per hour and comes with an electro-pneumatic operated product guide valve for dual direction rotation. With ATEX22 certified components, these mills integrate seamlessly into automated systems with fully programmable PLC controls and frequency-controlled automatic feeders. Constructed on a heavy-duty base frame with shock absorbers, the precisely balanced rotor guarantees reduced vibration and extended service life, while an optional automatic screen changer facilitates quick, safe substrate swaps. Available in multiple hammer configurations, including a specialized 8-row setup for aquatic feed, the GHM series optimizes energy use by up to 30% through advanced motor control, offering a reliable, hygienic, and low-maintenance grinding solution.
Benefits
- Enhances grinding efficiency with adjustable breaker plates, minimizing operational costs.
- Reduces energy consumption by up to 30% through optimized motor control.
- Increases operational flexibility with dual-direction rotation and frequency-controlled feeders.
- Minimizes maintenance with a precisely balanced rotor and durable construction.
- Facilitates quick product changeovers with an optional automatic screen changer.
- Applications
- Handling,Pet food,Oilseed processing,Soybean processing,Aqua feed,Concentrates,Premix,Grain storage,Compound feed
- End products
- Vitamin-premix blends,Soy protein isolates,Soy flour,Vegetable oils,Mineral concentrates,Bucket elevators,Corn storage,Grain silos,Extruded pet kibble,Fish feed pellets,Pelletized animal feed
- Steps before
- Cleaning,Dosing,Weighing,Product intake
- Steps after
- Mixing,Conditioning,Pelleting,Sieving,Coating
- Input ingredients
- maize,barley,aquatic feed ingredients,pet food ingredients
- Output ingredients
- ground maize,ground barley,aquatic feed,pet food
- 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
- Maize
- Number of hammers
- 6 rows,Special execution
- Chamber width
- 750–1250 mm
- Motor power
- 132–400 kW
- Screen surface area
- 1.0–1.7 m²
- Automation
- Fully automatic load control,Electro-pneumatic operated product guide valve
- ATEX Certification
- ATEX22 components
- Dual direction of rotation
- Yes
- Automatic load control
- Possible with feeder
- Automation level
- Electro-pneumatic operated product guide valve
- Adjustable breaker plates
- Yes
- Energy efficiency
- High efficiency design
- Frequency control
- Suitable
- ATEX22 certified components
- Yes
- Automatic screen changer
- Optional
- Abrasion resistance
- Yes
- Corrosive resistance (e.g. acids)
- High
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Cleanability
- Yes
- ATEX certification
- ATEX22 certified components
- Grinding chamber design
- Asymmetric formed
- Discharge method
- Electro-pneumatic operated product guide valve
- Adjustment
- Adjustable breaker plates
- Base frame
- Heavy with shock absorbers
- Number of hammers
- 6 rows standard,8 rows for aquatic feed/pet food
- Screen changer
- Automatic screen changer
- Electro-pneumatic operated product guide valve
- Yes
- Adjustable breaker plates
- Yes
- Automatic feeder
- Optionally frequency controlled
- Automatic screen changer
- Yes
- Built on heavy base frame with shock absorbers
- Yes
- ATEX22 certified components
- Yes
- Frequency control
- Suitable