Industrial cooling die for wet textured proteins
Maximize production efficiency by creating diverse, high-quality protein textures with our high-throughput cooling die, designed for seamless integration into your extrusion line.

Cools and Textures Protein Sources Efficiently
The PolyCool series from Bühler Group includes cooling dies designed for efficient protein production, featuring models like PolyCool 1000, PolyCool 500, and PolyCool 50. These dies specialize in cooling and texturing a variety of protein sources, perfect for creating meat and fish alternatives. The units operate by cooling the extrudate from approximately 150 ºC to below the boiling point, enabling a range of product textures such as wet textured soy protein, insect-based protein, and microalgae textures.
The PolyCool 1000 supports large-scale production with throughputs exceeding 1000 kg per hour, while the PolyCool 500 and PolyCool 50 cater to medium and small-scale demands, respectively. Each model features hygienic designs for easy cleaning and maintenance, ensuring high food safety standards. The PolyCool cooling dies are compatible with a wide array of raw materials, including soy, pulses, oilseeds, and innovative ingredients like microalgae.
Automation is facilitated through PLC control, providing seamless integration and remote monitoring capabilities in your production line. These cooling dies are particularly efficient, using independent cooling circuits and robust construction to withstand up to 50 bar of pressure, while meeting all industry hygiene standards. Ideal for food processors and alternative protein producers, this equipment forms a crucial part of the extrusion process, ready for both research and extensive industrial applications.
Benefits
- Achieves high-capacity protein production, reducing costs and enhancing affordability of meat substitutes.
- Offers flexible production capabilities for various protein textures, supporting diverse product development.
- Enables rapid cleaning and maintenance with hygienic design, maximizing food safety standards.
- Integrates seamlessly into existing production lines with uncomplicated PLC controls, minimizing setup disruptions.
- Suitable for a range of protein sources from soy to microalgae, expanding market potential.
- Applications
- Snacks,Grain,Chocolate,Dairy,Asian noodles,Biorefinery,Pulses,Paddy,Spices,Aqua feed,Biomass,Breakfast cereals,Cocoa,Animal feed,Alternative proteins,Pasta,Pet food,Nuts,Food ingredients,Rice,Dried fruits,Baked goods,Insect technology,Oilseeds,Wheat,Confectionery,Coffee,Vegetables
- End products
- Fish alternative textures,Nut-based protein structures,Insect-based protein chunks,Wet textured soy protein,Pulse protein crumbles,Microalgae protein textures,Oilseed protein isolates,Meat substitute fillets
- Steps before
- Extrusion,Heating,Milling,Mixing
- Steps after
- Cooling,Texturizing,Cutting,Packing
- Input ingredients
- soy,pulses,oilseeds,microalgae,insects
- Output ingredients
- wet textured proteins,fish-like textures,meat-like textures,seafood structures
- Market info
- Buhler is renowned for manufacturing advanced process solutions for food, feed, and advanced materials. They are highly regarded for their innovation in milling technology and equipment quality.
- Throughput capacity
- 1000 kg/h
- Pressure resistance
- Up to 50 bar
- Cooling temperature range
- From 150 ºC to below boiling point
- Cooling die types
- PolyCool 1000,PolyCool 500,PolyCool 50
- Production scale
- Large-scale,Medium-scale,Small-scale
- Material compatibility
- Soy,pulses,oilseeds,microalgae,insects
- Working mechanism
- Extrusion and cooling
- Throughput capacity
- 50 kg/h to 1000 kg/h
- Cooling range
- 150°C to below boiling point
- Pressure tolerance
- Up to 50 bar
- Cooling circuits control
- Independent
- Cleaning method
- Fast and easy cleanability
- Flexibility in ingredient use
- Soy,pulses,oilseeds,microalgae,insects
- Biological compatibility
- Yes
- Cleanability
- High
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Corrosive resistance (e.g. acids)
- Yes
- FDA compliance
- Yes
- Hygienic design standards
- Yes
- Compact footprint
- Yes
- Control panel type
- Digital/Touchscreen
- Capacity
- 50–1000 kg/h
- Machine Size
- Small,Medium,Large
- Cooling configuration
- PolyCool 50,500,1000
- Cooling medium
- Chilled air
- Cooling temperature
- 150°C to below boiling point
- Surface finish
- Electro-polished
- Control panel type
- PLC-controlled / HMI
- Integration possibilities
- Compatible with extruder systems
- Cooling circuits control
- Independently controlled
- Size selection
- PolyCool 50,500,1000