Experimental Stirred Ball Mill Stainless Steel Dry & Wet Dual-Purpose Grinding

An Experimental Stirred Ball Mill is a versatile and high-efficiency piece of equipment designed for Research & Development, pilot-scale trials, and small-batch production. It is engineered to achieve ultrafine grinding and precise mixing of a wide range of materials in both dry and wet conditions.

Unlike traditional ball mills that rely on tumbling action, a stirred ball mill uses a stationary grinding chamber filled with grinding media (small beads). The key to its operation is a high-speed agitator (a shaft with discs or pins) that rotates within the chamber.

• Intense Energy Transfer: The agitator's movement fluidizes the grinding media, creating a high density of collisions and intense shear forces between the beads, the particles, and the chamber walls.
• Efficient Comminution: This direct energy transfer results in much more efficient particle size reduction compared to tumbling mills, especially for achieving micron and sub-micron (nano) fineness.

1. Construction: Stainless Steel (SS304 or SS316)
   • Durability: Withstands the abrasive wear of grinding hard materials.
   • Corrosion Resistance: Ideal for wet grinding with water or chemical solvents. SS316 offers superior resistance to acids and chlorides.
   • Hygienic & Easy Clean: Prevents contamination and meets standards for pharmaceutical, food, or chemical applications.
2. Dual-Purpose Design: Dry & Wet Grinding
   • Dry Grinding: For pulverizing dry powders into fine particles. Effective for hard, brittle materials like minerals, ceramics, and chemicals.
   • Wet Grinding: For creating slurries and nano-dispersions. The liquid acts as a coolant and dispersant, preventing particle re-agglomeration. This is essential for achieving the finest possible particle sizes and for processing ductile materials.
3. Experimental & Scalable Design
   • Benchtop Size: Typically available in small volumes (0.5L to 15L), perfect for R&D where material quantities are limited and expensive.
   • Precise Control: Digital controls for agitator speed (RPM) and processing time allow for exact reproducibility and parameter optimization.
   • Scalability: Results from small experimental models can be directly scaled up to larger production-sized stirred mills.
4. Sealing System:

   A robust mechanical seal ensures the chamber is leak-proof for wet grinding and safe for use with volatile solvents.

5. Optional Features:
   • Water-Cooling Jacket: A jacket around the grinding chamber allows for temperature control during processing, which is critical for heat-sensitive materials.
   • Lifting Mechanism: An electric or hydraulic lift raises the agitator assembly for easy loading and cleaning.

1. High Energy Efficiency: More effective energy transfer leads to faster grinding and lower energy consumption per unit of product.
2. Superior Fineness and Uniformity: Produces a very narrow particle size distribution, which is critical for product performance in many industries.
3. Process Flexibility: The ability to switch between dry and wet grinding with the same machine makes it a highly versatile core instrument for any lab.
4. Reproducibility: Precise digital controls ensure that successful grinding parameters can be exactly replicated.

1. Inks & Pigments: For dispersing pigments to achieve nano-inks with high color strength and stability.
2. Paints & Coatings: For grinding and homogenizing formulations to ensure a smooth, high-gloss finish.
3. Pharmaceuticals: For the micronization of active pharmaceutical ingredients (APIs) to enhance solubility.
4. Battery Materials: For the fine grinding and mixing of cathode and anode powders to improve battery performance.
5. Ceramics & Electronics: For preparing ultra-fine ceramic powders and electronic pastes.
6. Metal Powders: For producing fine metal powders for additive manufacturing (3D printing).