Fast screen exchange grinding solution for medium-hard products
Maximize your milling efficiency with a solution that allows rapid screen changes without halting rotor operations, saving valuable production time while delivering consistent particle sizes from 150 microns to 3 mm.

Grinds and Sifts Solids with High Efficiency
The Hamex® Fast Screen Exchange Hammer Mill from Dinnissen BV is designed to revolutionize grinding and sifting operations in the food, pharmaceutical, pet food, feed, and chemical sectors. It stands out with its semi-automatic sifter change, allowing for swift turnover without halting the rotor, thereby minimizing downtime. The hammer mill achieves efficient processing of solids, powders, and granules, maintaining a consistent grind with a fineness between 150 microns and 3 mm, all while operating at a maximum speed of 1800 rpm. This feature, combined with lower energy consumption, makes it a sustainable choice for continuous production environments.
Incorporating large inspection hatches facilitates quick maintenance, reducing operational interruptions. The hammer mill is offered in robust construction, ensuring longevity and reliability under demanding conditions. Designed with flexibility in mind, it accommodates various hammer configurations—single, double, or T-hammers—based on material properties, enhancing its versatility across diverse applications like cereal grains flour, protein powders, nutraceutical supplements, and chemical catalysts.
The Hamex® Hammer Mills comply with rigorous in-house production and quality control standards, offering customizable options to fit specific production needs. This includes material finishes suitable for different industry requirements, ensuring compatibility with harsh chemicals and maintaining hygienic conditions for food and pharma sectors. Furthermore, Dinnissen’s engineering support ensures seamless integration into existing production lines, backed by a focus on innovation and continuous development.
Benefits
- Minimizes downtime with rapid screen exchange while rotor remains active.
- Lowers energy consumption through optimized hammer speed.
- Ensures quick maintenance via easy-access inspection hatches.
- Offers flexibility in processing with variable hammer configurations.
- Enhances production efficiency with continuous operation capabilities.
- Applications
- Food,Chemicals,Feed,Pet food,Minerals,Aquafeed,Pharmaceuticals
- End products
- Protein powders,Mineral powders,Nutraceutical supplements,Kibble,Cereal grains flour,Chemical catalysts,Fish meal
- Steps before
- Intake,Feeding,Conveying
- Steps after
- Sifting,Screening,Packaging
- Input ingredients
- soft products,medium-hard products
- Output ingredients
- fineness from 150 microns to 3 mm
- Market info
- Dinnissen is renowned for its expertise in process technology, specializing in innovative solutions for powder handling, mixing, and bulk materials processing for various industries, including food, feed, and chemicals, with a reputation for quality and custom engineered solutions.
- Speed
- Maximum 1800 RPM
- Fineness Range
- 150 microns to 3 mm
- Noise Level
- Minimal
- Energy Efficiency
- Lower energy consumption
- Sifter Change Time
- 10 minutes saved per change
- Sifter Change Mechanism
- Semi-automatic
- Grinding Material
- Soft to medium-hard products
- Hammer Type
- Single hammers,double hammers,T-hammers
- Accessibility
- Good for quick inspection and maintenance
- Direction of Rotation
- Variable
- Rotor Operation
- Can rotate during sifter change
- Semi-automatic sifter change
- Yes
- Noise level
- Minimal
- Grinding speed
- High
- Energy efficiency
- Lower energy consumption
- Rotor operations during sifter change
- Continuous
- Changeover time
- 10 minutes saved per sifter change
- Density/particle size
- 0.5–2.5 g/cm³ / 50–3000 µm
- Sifter type
- Semi-automatic sifter system
- Machine footprint
- Compact design
- Sifter type
- Semi-automatic,fast screen exchange
- Feed method
- Automatic feeding system
- Discharge method
- Through replaceable sifter
- Machine accessibility
- Large inspection hatches
- Sifter type
- Semi-automatic exchange
- Hammer type
- Single / Double / T-hammers
- Direction of rotation
- Variable
- Inspection access
- Large inspection hatches