This equipment represents a significant step up from laboratory planetary ball mills, designed for pilot-scale production, small-batch manufacturing, and continuous R&D. It combines the principles of stirring (agitation) and ball milling into a single, efficient system with the convenient feature of electric lifting.
| Main Parameters of Stirred Ball Mill |
| Model No. | Rotate Speed
(rpm) | Volume
(L) | Load Capacity
(L) | Power Supply
(KW/V) | Available Jars | Feed Size
(mm) | Output Granularity
(µm) | Speed Control Mode | Category |
| JM-1L | 50-1400 | 1 | 0.35 | 0.37KW/220V | Stainless steel
Nylon
Alumina ceramic
PU
Zirconia
Agate
PTFE | ≤5 | ≤1µm | Frequency speed adjuster | Laboratory Scale |
| JM-2L | 50-1400 | 2 | 0.7 | 0.37KW/220V | ≤5 | ≤1µm |
| JM-3L | 50-1400 | 3 | 1.05 | 0.37KW/220V | ≤5 | ≤1µm |
| JM-5L | 60-560 | 5 | 1.75 | 0.75KW/220V | ≤5 | ≤1µm | Frequency speed adjuster
or Fixed speed setting
for buyer's option | Small Type |
| JM-10L | 60-560 | 10 | 3.5 | 1.5KW/220V | ≤10 | ≤1µm |
| JM-15L | 60-380 | 15 | 5.25 | 2.2KW/380V | ≤10 | ≤1µm |
| JM-20L | 60-380 | 20 | 7 | 2.2KW/380V | ≤10 | ≤1µm | Light Type |
| JM-30L | 60-310 | 30 | 10.5 | 3.0KW/380V | Carbon steel
Stainless steel
Nylon liner
PU liner
Alumina ceramic liner
PTFE liner | ≤10 | ≤1µm |
| JM-50L | 60-140 | 50 | 17.5 | 4.0KW/380V | ≤10 | ≤1µm |
| JM-100L | 60-140 | 100 | 35 | 7.5KW/380V | ≤20 | ≤1µm | Industrial Type |
| JM-200L | 60-110 | 200 | 70 | 11KW/380V | ≤20 | ≤1µm |
| JM-300L | 60-110 | 300 | 100 | 15KW/380V | ≤20 | ≤1µm |
| JM-500L | 60-90 | 500 | 170 | 18.5KW/380V | ≤20 | ≤1µm |
| JM-600L | 60-90 | 600 | 200 | 22KW/380V | ≤20 | ≤1µm |
1. Core Concept and Working Principle
Unlike a planetary ball mill where the entire jar moves, a stirring ball mill (also known as an agitated ball mill) operates on a different principle:
- Stationary Grinding Tank: The main tank (5L, 10L, or 15L in this case) remains fixed.
- High-Speed Stirrer: A central shaft equipped with stirring arms (or discs) rotates at high speed inside the tank.
- Grinding Media: The tank is filled with small grinding media (balls), typically made of steel, zirconia, or other ceramics.
- Process: The rotating stirrer agitates the grinding media, creating intense friction and impact forces between the moving beads. The sample slurry (for wet grinding) or powder (for dry grinding) is fed into this agitated bed of media, resulting in extremely efficient and rapid size reduction.
2. Key Feature: Electric Lifting Mechanism
The "Electric Lifting" feature is a critical ergonomic and functional improvement:
- Function: The entire stirring head—including the motor, shaft, and stirrer—can be raised and lowered electrically at the push of a button.
- Benefits:
- Easy Loading/Unloading: Lifting the stirrer provides clear, unobstructed access to the grinding tank for easy filling and cleaning.
- Operator Safety: Eliminates the need for manual lifting of heavy components, reducing strain and injury risk.
- Precise Positioning: Allows for easy and safe adjustment of the stirrer's height within the tank.
3. Technical Specifications and Model Comparison
| Feature | 5L Model | 10L Model | 15L Model | Significance |
| Working Capacity | ~5 Liters | ~10 Liters | ~15 Liters | Determines batch size. Ideal for scaling up from lab recipes. |
| Motor Power | Lower (e.g., 2.2 kW) | Medium (e.g., 4 kW) | Higher (e.g., 5.5 kW) | Powers the stirrer; higher power enables higher viscosity processing and finer grinding. |
| Stirrer Speed | Variable, often up to 100-200 rpm | Variable, often up to 100-200 rpm | Variable, often up to 100-200 rpm | Critical control parameter for adjusting grinding energy and shear force. |
| Lifting Mechanism | Electric Motorized Lift | Electric Motorized Lift | Electric Motorized Lift | Essential for handling the heavier stirrer assembly on larger models. |
| Grinding Media | Small beads (0.3mm - 3mm) | Small beads (0.3mm - 3mm) | Small beads (0.3mm - 3mm) | Small media size is key for achieving micron and sub-micron fineness. |
| Jacketed Tank | Optional | Optional | Optional | Allows for temperature control (heating or cooling) during grinding, crucial for heat-sensitive materials. |
4. Advantages Over Traditional Ball Mills
- Higher Grinding Efficiency: The direct agitation of media is more energy-efficient than tumbling a large drum, leading to faster grinding times.
- Finer Particle Size: Capable of achieving very fine and uniform particle sizes down to the micrometer or even nanometer range, especially in wet grinding mode.
- Continuous or Batch Operation: Many models can be configured for continuous feed and discharge, making them suitable for production, unlike batch-only planetary mills.
- Scalability: Results from small laboratory agitated mills can be more directly scaled up to these pilot-scale models.
5. Common Applications
This type of mill is used in industries that require fine grinding and dispersion on a small production scale:
- Ink & Pigment Production: For dispersing pigments and creating nano-inks with excellent color strength and stability.
- Paints & Coatings: For grinding and homogenizing paint formulations to achieve a fine, smooth finish.
- Electronics Industry: For producing pastes used in thick film circuits, solar cells, and LEDs.
- Pharmaceuticals: For the nano-sizing of active ingredients to enhance bioavailability.
- Chemical Industry: For fine chemical synthesis and catalyst preparation.
6. Operational Workflow (Batch Mode)
- Lifting: The electric lift is used to raise the stirring head.
- Loading: Grinding media and the sample (with solvent for wet grinding) are loaded into the stationary tank.
- Lowering & Sealing: The stirring head is lowered and sealed onto the tank.
- Milling: The stirrer is activated and runs for a set time at a controlled speed.
- Discharge: After milling, the product is discharged, often through a sieve that retains the grinding media inside the tank.
