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.

General


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.

Technical Specifications


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

Operating Characteristics


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

Material Compatibility


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

Physical Characteristics


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

Custom Options


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