Product Overview
A planetary ball mill with a 100ml stainless steel vacuum jar is a
high-performance benchtop grinding device designed for processing
materials down to the nano scale in a controlled, inert atmosphere.
This combination is essential for grinding air-sensitive, easily
oxidized, or moisture-reactive materials that would otherwise
degrade in ambient air.
The system consists of two main components:
The Planetary Ball Mill Main Unit: Provides the high-speed rotational motion that generates immense
grinding energy.
The 100ml Stainless Steel Vacuum Jar: A specialized grinding container that can be evacuated and filled
with an inert gas like Argon or Nitrogen.
| Model No. | XQM-0.4 |
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| Volume of each matched Jar | 100ml |
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| Voltage | 220V - 50Hz |
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| Machine Size | 500*300*340mm |
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| Machine Weight | 100 Kg without mill jar |
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| Work mode | 4 jars working together |
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| Mill mode | Dry / wet milling |
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| Speed Frequency | Adjusting |
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| Drive Mode | Gear drive |
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| Rotational Speed | 90-870 r/min, adjusting |
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| revolution: rotation | 1:2.14 |
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| Material Capacity | Material + mill balls < 2/3 volume |
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| Input Granularity Size | < 10mm for soft material,
< 3mm for hard material |
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| Output Granularity Size | Minimum 0.1μm |
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| Field of application | Geology, Mining, Metallurgy, Electronics, Construction Material,
Ceramics, Chemical Engineering, Light
Industry Medicine, Environmental Protection etc. |
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| Feed material | Soft, hard, brittle, fibrous, cellulose, herb, glass, soil,ore,
pharmacy, chemical, fluorescent, pigment etc. |
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| Type of grinding jars | Stainless steel, zirconia, alumina, nylon, PU, tungsten,PTFE etc.,
vacuum jars are available as well. |
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| Type of grinding medium | Stainless steel balls, zirconia balls, alumina balls, PU balls,
steel carbon balls, tungsten balls, etc. |
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| Max. continuous operating time (full-load) | 72 hours |
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| Interval operation | With direction reversal |
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| Certificate | ISO 9001. CE certificate |
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Key Features & Components
| Feature/Component | Description and Benefit |
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| Planetary Disk & Jars | The main disk (sun wheel) rotates, while the jars (planets) rotate
in the opposite direction on their own axes. This creates
high-energy impact forces from the grinding balls, ideal for rapid
size reduction and mechanical alloying. |
| 100ml Stainless Steel Jar | Material: 304 or 316L Stainless Steel, known for high mechanical strength,
wear resistance, and low contamination for many applications.
Capacity: Ideal for R&D and small-batch production (typically 1/3 to 1/2
filling for effective grinding). |
| Vacuum & Gas System | Vacuum Port: Allows a vacuum pump to be connected to evacuate the jar's
internal atmosphere (typically down to <1 Pa).
Gas Inlet Valve: After evacuation, this valve is used to purge the jar with an
inert gas (e.g., N₂, Ar) to create a pure, oxygen-free and
moisture-free environment.
Safety Valve: Often includes a pressure relief valve for operator safety. |
| Lid Sealing System | Utilizes a robust silicone or fluoropolymer O-ring and a clamping
mechanism (e.g., wing-nuts or a quick-lock system) to ensure an
airtight seal under vacuum and during high-speed operation. |
| Control System | Digital controls for setting Grinding Time (from seconds to hours), Rotation Speed (RPM), and Cycle Direction (alternating rotation to prevent caking). |
Working Principle
Loading: The material to be ground and the grinding balls are placed inside
the 100ml jar. The jar is sealed tightly.
Atmosphere Control: A vacuum pump is connected to the jar's port to remove all air and
moisture. The jar is then filled with an inert gas. This purge
cycle may be repeated 2-3 times to ensure atmospheric purity.
Grinding: The sealed jar is securely mounted onto the rotating planetary
disk of the mill. The program (time, speed) is set and started.
Planetary Motion: As the disk turns, the jar spins on its own axis in the opposite
direction. The grinding balls inside are subjected to strong
Coriolis and centrifugal forces, impacting the material with high
energy against the jar's walls.
Result: This action rapidly crushes, mixes, and homogenizes the powder,
achieving particle sizes in the micrometer or even nanometer range,
all within a protected environment.
Primary Applications
This setup is critical in advanced material science and chemistry
labs:
Solid-State Battery Research: Grinding air-sensitive materials like Lithium Metal Anodes, Sulfide-based Solid Electrolytes (e.g., Li₃PS₄), and high-capacity cathode materials without
oxidation.
Metal Alloying: Mechanical alloying of metallic powders (e.g., Aluminum,
Magnesium, Titanium alloys) that would otherwise oxidize and form
undesirable phases.
Advanced Ceramics: Processing of non-oxide ceramics like Silicon Nitride (Si₃N₄) or Silicon Carbide (SiC) which can oxidize at high energies.
MOFs & Porous Materials: Synthesis and size reduction of Metal-Organic Frameworks that
might be sensitive to moisture.
Nanocomposites: Creating homogeneous mixtures of a metal or ceramic matrix with
nano-reinforcements (e.g., Carbon Nanotubes, Graphene).
Advantages of the Vacuum/Inert Gas System
Prevents Oxidation & Contamination: Essential for working with pure metals, sulfides, and other
reactive compounds.
Eliminates Moisture: Prevents hydrolysis of moisture-sensitive materials.
Reduces Fire and Explosion Risks: Allows safe grinding of flammable or pyrophoric materials.
Enables Reproducible Research: Provides a controlled environment, ensuring experimental
consistency.
