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HIGH PRESSURE GRINDING ROLLS

The mill feed is transported to the most narrow gap by the counter rotating rollers through friction effects. Both rollers are pressed against each other using hydraulics. This milling force is transferred to the mill feed and creates extremely high inner tensions leading to fractures.

WORKING PRINCIPLE

SUNKAIER High Pressure Roll Mill (HPGR) is an advanced comminution (size reduction) technology used primarily in the mining and mineral processing industries. It is designed to efficiently crush and grind ore into smaller particles by applying high pressure through a pair of counter-rotating rolls. This technology is known for its energy efficiency, reduced operating costs, and improved mineral liberation, making it a popular choice for hard ore processing.

HIGH PRESSURE GRINDING ROLLS
ADVANTAGES
ADVANTAGES


  • Energy Efficiency:   Consumes less energy compared to traditional grinding methods.

  • Improved Particle Characteristics:   Creates micro-cracks in particles, enhancing downstream processing.

  • Low Maintenance:   Durable roll surfaces reduce wear and maintenance costs.

  • Compact Design:   Saves space in processing plants.

  • Versatility:   Suitable for a wide range of materials and industries.

  • Scalability:   Can be used in small-scale pilot plants or large-scale industrial operations.

APPLICATIONS
  • Mining and Minerals Processing: Iron Ore: Pre-grinding of iron ore before pelletizing or  eneficiation. Gold and Copper: Crushing and grinding of gold and copper ores to improve liberation and recovery rates. Industrial Minerals: Processing of talc, limestone, phosphate, and other industrial minerals.

  • Chemical Industry: Grinding and compaction of chemical powders and granules. Size reduction of raw materials for chemical synthesis.

  • Ceramics and Refractories: Grinding of ceramic raw materials like alumina, zirconia, and silica. compaction of ceramic powders for further processing.

  • Pharmaceuticals: Size reduction of active pharmaceutical ingredients (APIs) and excipients. Compaction of powders for tablet production.

  • Food and Agriculture: Grinding of food products like spices, sugar, and starch. Compaction of agricultural materials like fertilizers and feed pellets.

  • Recycling: Crushing and grinding of waste materials for recycling, such as glass, slag, or electronic waste.

APPLICATION FIELDS

DOWNLOADS

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MODELS AND TECHNICAL SPECIFICATIONS

Model

Working Volume(L)

Max Working Volume(L)

Power (KW)

Speed(RPM)

Working Temparature e(C)

Cylinder Design Pressure (MPa)

Jacket Design Pressure (MPa)

50








100








200








350








500








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1000








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DOWNLOADS

ENGLISH
ENGLISH
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UREA TO AMMOUNIA

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WFF EVAPORATOR

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LAB REACTOR

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RELATED PRODUCTS

Agitated

MAIN DESIGN FEATURES

  • High Pressure Grinding: 

Applies pressures of up to 50-350 MPa (megapascals) to crush or compact materials. Efficiently reduces particle size while minimizing energy consumption.

  • Energy Efficiency:

Consumes less energy compared to traditional grinding methods like ball mills or hammer mills. Reduces operating costs in material processing.

  • Compact Design:

Requires less space compared to traditional grinding systems, making it suitable for both small and large-scale operations.

  • Adjustable Roll Gap and Pressure:

Allows operators to adjust the roll gap and operating pressure to optimize performance for different materials.

  • Wear-Resistant Rolls:

Equipped with hard-wearing roll surfaces made from advanced materials like tungsten carbide or ceramic. Extends the lifespan of the rolls and reduces maintenance requirements.

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