Planetary Ball Mill with 0.1 Micron Minimum Grinding, Frequency Converter Control, and Overload Protection for Laboratory Use

A planetary ball mill is a high-energy type of ball mill that grinds materials down to the micron or even nanometer range. It features a "planetary" motion where grinding jars rotate around a central axis while simultaneously spinning on their own axes. This complex motion creates powerful centrifugal forces that generate intense grinding energy.

• Fine Grinding: Primary purpose - pulverizes hard, brittle, and soft materials to fineness of < 1 μm, far superior to standard mixers or blenders
• Mixing & Homogenization: Produces perfectly homogeneous mixtures from components with different densities, particle sizes, or properties
• Nanomaterial Dispersion: Breaks apart agglomerates of nanoparticles and uniformly disperses them within liquid or solid matrices
• Mechanical Alloying: Creates advanced alloyed materials by welding, fracturing, and re-welding different metal powders together
• Small-Sample Preparation: Ideal for laboratory R&D with small quantities of valuable or rare materials

The high efficiency comes from the synergy of two types of motion: revolution (grinding jars mounted on rotating disk) and rotation (each jar spins on its own axis in opposite direction). This dual rotation generates strong Coriolis and centrifugal forces, creating a combination of impact, friction, and attrition that efficiently grinds materials.

• Sun Wheel (Main Disk): Rotating platform that holds the grinding jars
• Grinding Jars: Containers for sample and grinding balls, available in various materials to prevent contamination
• Grinding Balls: Milling media where size, material, and number significantly affect grinding results
• Drive Mechanism: Motor and gearing system controlling rotation speeds

For successful milling results, operators must carefully control:

• Milling Time: Longer times generally lead to finer particles but may cause contamination
• Rotational Speed: Higher speeds generate more energy for faster, finer grinding
• Ball-to-Powder Ratio: Mass ratio of grinding balls to sample powder affects efficiency
• Grinding Media: Ball size and material selection crucial for specific applications
• Milling Atmosphere: Can be done in air or inert gas to prevent oxidation
• Process Control Agents: Solvents or surfactants to prevent excessive cold welding

Field of application: Geology, Mining, Metallurgy, Electronics, Construction Material, Ceramics, Chemical Engineering, Light Industry Medicine, Environmental Protection

Feed material: Soft, hard, brittle, fibrous, cellulose, herb, glass, soil, ore, pharmacy, chemical, fluorescent, pigment

Type of grinding jars: Stainless steel, zirconia, alumina, nylon, PU, tungsten, PTFE, vacuum jars

Type of grinding medium: Stainless steel balls, zirconia balls, alumina balls, PU balls, steel carbon balls, tungsten balls

• Materials Science: Synthesis of nanocomposites, mechanical alloying, amorphous materials
• Geology & Mining: Preparing rock and mineral samples for chemical analysis
• Pharmaceuticals: Reducing particle size of APIs to enhance bioavailability
• Electronics: Producing fine powders for ceramics, capacitors, magnetic materials
• Chemistry: Facilitating chemical reactions through mechanochemistry
• Nanotechnology: Exfoliating 2D materials, synthesizing quantum dots, dispersing nanomaterials