Ultrafine grinding technology uses special equipment and processes like milling, impact, and shearing on raw materials. It grinds particles larger than 3mm into fine powders below 10–25μm. This creates interfacial activity and unique functional properties. Compared to traditional crushing, ultrafine grinding technology achieves much finer particle sizes. It offers higher surface area and greater reactivity. This technology plays an important role across many industries.
Common Ultrafine Grinding Methods
Sand Mill Grinding
High – speed rotating grinding media in sand mills collide with raw materials, crushing them into nanometer – sized particles. This is ideal for high – tech coatings needing precise and uniform pigment particle sizes.
High – Pressure Pellet Machine
Applying intense pressure, it pushes materials through fine – pored molds. Useful for ceramic powder production, where particle shape impacts sintering and product properties.
Air jet mill Method
High – speed air jet mill and collides with raw materials, breaking them into smaller particles, which are then classified. This suits pharmaceutical drug manufacturing, ensuring proper particle sizes for drug dissolution.
Application Scope
New Energy Electronic Materials
Grinding to nanometer levels boosts surface area and reactivity. In batteries, it enhances electrode – electrolyte reactions for better performance; in semiconductors, it improves conductivity.
Food Field
Grinding food materials to micron levels improves product uniformity and taste. It helps release more flavor in coffee, better disperse condiments, and enhance cocoa powder solubility.
Coatings and Ceramics
Reducing pigment and filler sizes increases color saturation in coatings and improves sinterability in ceramics, enhancing mechanical properties and durability.
Medicine Field
Grinding drug raw materials to nanoscale increases solubility and bioavailability. It enables controlled and targeted drug release in oral and injection formulations.
Cosmetics Field
Grinding active ingredients and pigments to micron levels improves product stability and adsorption. It helps active ingredients penetrate skin better in skincare and gives more intense color in makeup.
Advantages
Fast Temperature Control
Methods like supersonic jet and cold pulp pulverization prevent overheating. They can operate at low temperatures, preserving heat – sensitive materials’ activity and nutrients.
Small, Uniform Particle Size
The external force in ultrafine pulverization is evenly distributed, and the grading system ensures a uniform particle size distribution, crucial for applications like electronic pastes and catalysts.
Reduced Pollution
Operating in a closed system, it prevents powder from polluting the environment and stops external dust from contaminating products, important for food and medicine production.
High Efficiency, Low Energy
Modern grinders optimize structure and parameters for higher efficiency and better particle size control. Intelligent systems reduce energy waste compared to traditional methods.
Low Maintenance, Safe
Minimal wear and tear mean only occasional motor bearing and spring maintenance. Safe – by – design machines reduce guarding needs and enhance workplace safety.
Future Trends
Future research will focus on improving grinding efficiency and particle size control. New grinding mechanisms and materials will be explored. Tailored technologies for emerging industries and research on high – functional product preparation will also be key areas.
Conclusion
Ultrafine grinding technology is vital in modern industry. Its wide applications and numerous advantages, such as precise particle control and reduced pollution, make it a top choice. With continued technological advancements, it will drive industry development and enable the creation of better – performing products.
epic powder
Epic Powder, 20+ years of work experience in the ultrafine powder industry. Actively promote the future development of ultra-fine powder, focusing on crushing,grinding,classifying and modification process of ultra-fine powder. Contact us for a free consultation and customized solutions! Our expert team is dedicated to providing high-quality products and services to maximize the value of your powder processing. Epic Powder—Your Trusted Powder Processing Expert !
