Fine impact mills for particle size reduction
Achieve precise particle size reduction with fine impact mills, essential for producing high-quality powders and granules across diverse applications, from food ingredients to chemical reagents.

Reduces Particle Size for Diverse Materials
The Contraplex CW II Wide Chamber Pin Mill from Hosokawa Alpine offers exceptional precision in particle size reduction, tailored for challenging materials such as minerals, polymers, and food ingredients. It features a counter-rotating mechanism that enhances milling efficiency and enables continuous operation, ideal for chemical producers and pharmaceutical manufacturers. Designed for applications ranging from pigment processing to protein shifting, this mill supports a broad particle size range from 50 µm to 5 mm. With a throughput capacity adaptable to diverse production scales, the CW II integrates seamlessly into existing lines, driven by energy-efficient motors that optimize power usage. Available in various material options, including stainless steel, it supports rigorous GMP standards and corrosion-prone environments. Its user-friendly design incorporates easy-to-clean features to minimize downtime and enhance maintenance efficiency. For bespoke operations, customizable grinding elements and drive systems ensure alignment with specific production needs, backed by Hosokawa Alpine’s comprehensive engineering support.
Benefits
- Enhances production efficiency with continuous, counter-rotating milling action.
- Decreases energy usage through optimized motor control and variable speed options.
- Adapts to a wide range of applications with customizable grinding elements.
- Maintains product purity with easy-to-clean design, minimizing contamination risks.
- Complies with stringent regulatory standards for seamless integration into pharmaceutical environments.
- Applications
- Solid acids,Teas,Tobacco,Powdered sugar,Oily products,Waxes,Greasy products,Minerals,Pigments,Food,Polymers,Rubber,Fertilisers,Plastics,Maize,Calcium carbonate,Flowers,Chemical raw materials,Cereals,Medical products,Protein shifting,Soya,Colourants,Leaves,Lactose,Silicone resins,Salts
- End products
- Vitamin supplements,Shea butter,Tattoo ink,Chalk,Crop fertilizer,Biodegradable plastics,Loose tea blend,Herbal teas,Rubber hose,Industrial dyes,Cornmeal,Vegetable protein isolates,Soy protein powder,Icing sugar,Candle wax,Cornflakes,Car paints,Citric acid,Table salt,Sunflower oil powder,Silicone sealants,Rolled oats,Pipe tobacco,Lactose powder,Polyethylene films
- Steps before
- Pre-crushing,Purification,Emulsification,Drying,Material preparation
- Steps after
- Particle size analysis,Packing,Coating,Tablet pressing
- Input ingredients
- chemical raw materials,minerals,food,medical products,colourants,plastics,protein shifting,oily and greasy products,powdered sugar,cereals,soya,maize,lactose,polymers,rubber,pigments,silicone resins,waxes,solid acids,salts,minerals,calcium carbonate,flowers,leaves,teas,tobacco,fertilisers
- Output ingredients
- fine powders,ground materials,processed chemicals,processed minerals,ground food products,processed medical products,processed colourants,processed plastics,protein-rich powders,fine sugar,ground cereals,ground soya,ground maize,fine lactose,processed polymers,ground rubber,fine pigments,ground silicone resins,fine waxes,neutralized acids,processed salts and minerals,fine calcium carbonate,processed flowers and leaves,ground teas,ground tobacco
- Market info
- Hosokawa Alpine is known for its expertise in manufacturing advanced process equipment and systems for powder and particle processing technology. It has a strong reputation for innovation, quality engineering, and customer-focused solutions in various industries.
- Particle size range
- 50 µm to 5 mm
- Grinding methods
- Pin mill
- Tool variety
- Grinding pins,plate beaters,beater discs
- Energy efficiency
- High
- Automation
- Tool interchangeability
- Capacity
- High throughput
- Cleaning method
- Easy access for quick cleaning
- Explosion-proof housing
- Yes
- Pressure surge-proof
- Yes
- Applications
- Chemicals,minerals,food,medical products,plastics
- Cryogenic grinding
- Yes
- Deposit prevention
- Special housing design
- Pressure surge-proof design
- Yes
- Explosion-proof housing
- Yes
- Automation level
- Manual / PLC
- Cleaning method
- Easy access for manual cleaning
- Customizable grinding elements
- Yes
- Batch vs. continuous operation
- Batch / Inline Continuous
- Energy efficiency
- High
- Tool interchangeability
- Grinding pins,plate beaters,beater discs
- Material handling
- Various materials including oily and greasy products
- Cooling option
- Cryogenic / Ambient
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Container Size and Shape
- Customizable
- Tool variety
- Grinding pins,plate beaters,beater discs
- Control panel type
- HMI
- Discharge method
- Easy access
- Pressure-proof housing
- Surge-proof and explosion-proof