This system is a high-purity, versatile benchtop grinding
instrument designed for research and development applications where
the absolute integrity of the sample is paramount. The combination
of the high-energy planetary milling principle with the exceptional
properties of an agate grinding jar makes it an ideal choice for
preparing contamination-free samples for sensitive analytical
techniques.
| Model No. | ZLXQM-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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1. Core Innovation: The Dual-Purpose Design
The "dual-purpose" designation means the mill and its agate jar
assembly are specifically engineered to perform two key functions
with high efficiency:
Dry Grinding: The system can pulverize dry, brittle materials into
fine powders.
Wet Grinding (or Wet Milling): It can also grind materials
suspended in a liquid to create slurries or colloidal dispersions,
which is essential for achieving nanometer-scale particles and for
processing elastic materials.
This versatility is achieved through a robust jar design featuring
a secure sealing mechanism that prevents leakage during the
high-energy movements of wet grinding, while remaining easy to open
and clean for dry grinding cycles.
2. The Heart of Purity: The Agate Grinding Jar
The choice of Agate (a form of silica/SiO₂) for the grinding jar
and balls is the most critical aspect for applications requiring
purity. Its properties include:
Exceptional Chemical Inertness: Agate is highly resistant to almost
all acids, alkalis, and organic solvents (except hydrofluoric
acid). This ensures no chemical contamination from the jar
interacts with the sample.
High Hardness & Low Wear: With a Mohs hardness of approximately 7,
agate is harder than many common materials. This results in minimal
abrasion during milling, preventing contamination by trace metals—a
common problem with stainless steel jars. This is non-negotiable
for techniques like ICP-MS.
Smooth, Non-porous Surface: The polished interior minimizes sample
adhesion and allows for easy and complete cleaning between uses.
3. Technical Specifications
| Feature | Description |
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| Machine Type | Benchtop Planetary Ball Mill |
| Grinding Jar Material | Natural or Synthetic Agate |
| Typical Jar Capacity | 50 ml, 100 ml, 250 ml (ideal for small lab samples) |
| Primary Grinding Modes | Dry Grinding and Wet Grinding |
| Control System | Digital display for RPM and timer; programmable with auto-reverse |
| Speed Range | Typically 100 to 800 rpm (adjustable for optimal energy input) |
| Final Fineness | Can achieve < 1 micrometer; capable of nanometer range with wet
grinding. |
4. Operational Workflow: Dry vs. Wet
Dry Grinding Process:
Loading: The dry sample is placed directly into the agate jar with
the appropriate-sized agate grinding balls.
Milling: The sealed jar is mounted on the mill. The planetary
motion causes the balls to impact and crush the material through
high-energy collisions.
Result: A fine, dry powder. Ideal for X-Ray Diffraction (XRD) and
general powder analysis.
Wet Grinding Process:
Loading: The sample, grinding balls, and a suitable liquid (e.g.,
water, ethanol, hexane) are combined in the jar to form a slurry.
Milling: The same high-energy process occurs, but the liquid acts
as a coolant and dispersant, preventing particle re-agglomeration.
Result: A homogeneous nano-suspension or an ultra-fine slurry.
Essential for creating nano-dispersions and for grinding ductile
materials.
5. Key Advantages
Ultra-Low Contamination: The agate jar ensures the sample's
elemental composition remains unaltered, which is critical for
accurate trace element analysis.
Unmatched Versatility: A single machine handles both dry and wet
milling tasks, making it a cost-effective core instrument for any
lab.
Superior for Nano-Preparation: Wet grinding in an inert agate
environment is a proven method for producing stable nano-particles.
Ideal for Small Batches: The small jar sizes are perfect for
R&D work where materials are expensive or available only in
limited quantities.
6. Primary Applications
This instrument is essential in fields where purity and fine
grinding converge:
Geochemistry & Geology: Preparing rock, mineral, and soil samples
for trace element analysis by ICP-MS or XRF without metallic
contamination.
Archaeology & Cultural Heritage: Grinding pottery, pigments, and
artifact samples for compositional analysis without introducing
modern contaminants.
Pharmaceuticals & Biotechnology: Size reduction of active
pharmaceutical ingredients (APIs) and homogenization of biological
samples where chemical inertness is required.
Ceramics & Electronics: Grinding high-purity ceramic powders and
precursor materials.
Quality Control Labs: Used in industries like cement and pigments
for standardized, contamination-free sample preparation.
