Basket Mill / Immersion Mill
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Basket mills, also known as immersion mills, are used when a material needs mixing, dispersion, and wet grinding in the same process. Instead of sending the material through a separate grinding chamber, the grinding basket is lowered directly into the tank and works inside the product. The basket contains grinding media, while the rotating shaft and dispersing parts keep the material circulating through the grinding area. During processing, the material is mixed and ground at the same time, helping reduce particle size, break down agglomerates, and create a more even dispersion. This structure is useful for batch production, especially when the process needs easier cleaning, faster material changeover, or flexible handling of viscous formulations.
| Model | Motor Power (kW) | Basket Capacity (L) | Tank Capacity (L) | Lifting Stroke (mm) | Rotation Speed (rpm) |
| 4 | 3 | 30~100 | 400 | 0-1500 | |
| 7.5 | 10 | 50~200 | 500 | 0-1500 | |
| 11 | 15 | 100~300 | 700 | 0-1300 | |
| 15 | 15 | 200~400 | 900 | 0-1300 | |
| 18.5/22 | 20 | 300~500 | 1200 | 0-1100 | |
| 30/37 | 30 | 500~1000 | 1200 | 0-1000 | |
| 45/55 | 40 | 1000~1500 | 1400 | 0-1000 |
Working principle
Grinding Basket with Cooling Jacket
Explosion-Proof Operation Panel
Siemens/ABB Motor and Inverter
Basket/immersion mills are suitable for wet grinding and dispersion of liquid, slurry, and paste-like formulations, especially when the process requires batch production, easier cleaning, and flexible material changeover.
Paints and Coatings
Leather Coatings
Inks
Pesticides and Fertilizers
Viscous Materials
Cosmetics
Chemicals
New Materials
- Mixing, dispersion, and wet grinding can be completed in the same unit, so the material does not need to move between separate mixers and grinding equipment, helping simplify the process flow, save floor space, and make batch production easier to manage.
- The self-priming impeller helps draw material into the grinding basket smoothly, where the rotating basket and grinding media create the shear needed for fine grinding and dispersion.
- The grinding basket can be lifted out of the tank for cleaning and material changeover, making the process more convenient when working with different colors or product batches.
- After grinding, only a small amount of material is left inside the basket, so more of the product can be used and less is wasted during production.
- The basket mill is suitable for laboratory testing, sampling, and small- to medium-batch production, especially when several product types need to be processed with flexible changeover.
- The bottom stirring system works together with basket circulation to keep the material moving evenly inside the tank, reduce unprocessed areas, and improve grinding and dispersion consistency.
- A special anti-backflow structure helps keep the grinding media inside the basket and reduces bead leakage during operation.
The basket mill has an integrated structure, lifting mechanism, and open working area, making batch operation easier to observe, operate, and clean.
Cooling water can pass through a double jacket around the grinding basket, increasing the cooling area near the grinding section. Better heat removal helps control material temperature during grinding, which is important for dispersion quality, color strength, and pigment use.
Basket/immersion mills have a compact structure designed to save floor space, as they do not require complex pipelines or an external circulation system.
Heat can dissipate more easily in the open working area, helping control temperature rise when processing heat-sensitive or viscosity-sensitive materials.
Different motor options are available according to the project requirements, including Jiangsu Dazhong, Siemens, ABB, and other suitable brands. Explosion-proof motors with CE or ATEX certification can also be provided when the production environment requires them.
