Cell Lab Natural Brazilian Agate Milling Media Balls [High Purity | 3–30 mm | For Planetary Ball Mills]
Cell Lab Natural Brazilian Agate Milling Media Balls [High Purity | 3–30 mm | For Planetary Ball Mills] Ultra-pure, contamination-free grinding media for precision laboratory milling The Cell Lab™ Natural Brazilian Agate Milling Media Balls are manufactured from high-purity natural...
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Description
xCell Lab Natural Brazilian Agate Milling Media Balls [High Purity | 3–30 mm | For Planetary Ball Mills]
Ultra-pure, contamination-free grinding media for precision laboratory milling
The Cell Lab™ Natural Brazilian Agate Milling Media Balls are manufactured from high-purity natural agate (≥ 97.26 % SiO₂), offering superior hardness, minimal contamination, and chemical inertness. Engineered for planetary and laboratory ball mills, these spherical grinding media deliver consistent particle size reduction for both wet and dry milling of powders, ceramics, and advanced materials.
With a density of 2.65 g/cm³ and Mohs hardness 7.2–7.5, they provide excellent durability and extremely low abrasion rates—perfect for battery R&D, ceramics processing, spectroscopy sample prep, and fine-powder homogenisation.
Key Features
• High-Purity Natural Agate (≥ 97.26 % SiO₂)
Ensures zero chemical interference, making it ideal for trace-element or purity-sensitive material analysis.
• Exceptional Hardness and Durability
Mohs 7.2–7.5 ensures long service life and stable milling performance even under intensive grinding conditions.
• Low Contamination Risk
Non-porous, polished surface prevents metal or oxide contamination, ensuring clean and reproducible milling results.
• Broad Compatibility
Suitable for agate, zirconia, alumina, and stainless-steel jars—perfect for planetary and laboratory-scale mills.
• Optimised Diameter Range (3–30 mm)
Different sizes enable coarse crushing, fine grinding, and uniform powder homogenisation across varied sample types.
Application Advice
| Sample Type | Recommended Ball Diameter |
|---|---|
| Hard materials (<10 mm feed size) | 30 mm or 40 mm |
| Medium granules (<5 mm feed size) | 20 mm |
| Fine powder (~0.5 mm) | 10 mm or 5 mm |
| Dry or liquid sample homogenisation | 10 mm |
| Viscous sample homogenisation | 20 mm |
Technical Specifications
| Package | 1 kg (approx. 90 pcs, 20 mm balls) |
| Material | Natural Brazilian Agate (≥97.26% SiO₂) |
| Density | 2.65 g/cm³ |
| Bulk Weight | 1.5 kg/L |
| Shape | Spherical |
| Diameter Range | 3 mm to 20 mm |
| Hardness | 7.2–7.5 Mohs |
| Colour | Ivory white / Natural grey |
| Sample Suitability | Soft to medium-hard materials |
| Abrasion Resistance | Excellent |
| Recommended Jar | Agate milling jar |
Chemical Composition
| Element | Content (%) |
|---|---|
| SiO₂ | 97.26 |
| Others* | 2.74 |
*Trace amounts of MgO, CaO, Mn₂O₃
Applications & Industries
-
Fine powder milling for battery materials and electrodes
-
Ceramic and oxide dispersion processing
-
Analytical sample preparation for XRF and IR
-
Geological and pharmaceutical powder homogenisation
-
Laboratory research in chemistry and materials science
FAQ
Q1: Why choose agate over zirconia or stainless-steel balls?
A1: Agate offers superior chemical inertness and ultra-low abrasion, ensuring sample purity for analytical and battery applications.
Q2: Can these be used for both wet and dry milling?
A2: Yes — they are suitable for both wet dispersion and dry pulverisation processes.
Q3: What is the maximum feed size for efficient grinding?
A3: For optimal performance, use feed sizes ≤ 10 mm with larger (30–40 mm) balls.
Q4: Do they require conditioning before use?
A4: Rinse with ethanol or deionised water to remove surface residues before first use.
Q5: Are they compatible with non-agate jars?
A5: Yes, but agate jars are recommended for maximum purity and hardness matching.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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