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The Cell Lab Yttria-Stabilised Zirconia (YSZ) Milling Media Balls are engineered for laboratory, pilot-scale and production-scale grinding applications requiring maximum milling efficiency and minimal contamination. Manufactured from high-purity yttria-stabilised zirconia, these grinding balls offer outstanding density, fracture toughness, wear resistance and chemical stability.
Available in sizes from 5 mm to 40 mm, these zirconia milling balls are ideal for planetary ball mills, roller mills, stirred mills and high-energy grinding systems used in battery materials, advanced ceramics, pharmaceuticals, pigments, minerals and nanomaterials processing.
Their superior mechanical strength and highly uniform spherical geometry ensure efficient energy transfer, rapid particle size reduction and long operational life compared with alumina, glass and other conventional grinding media.
| Product Code | Ball Diameter (mm) | Composition | Density (g/cm³) | Hardness (HV) |
|---|---|---|---|---|
| CL0930 | 5 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0931 | 8 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0932 | 10 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0933 | 12 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0934 | 15 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0935 | 20 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0936 | 25 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0937 | 30 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
| CL0938 | 40 mm | 94.6 wt% ZrO₂ + HfO₂; 5.2 wt% Y₂O₃ | 6.0 ± 0.05 | ~1250 |
Ideal for grinding, mixing and dispersion applications in:
Q1: How do I select the appropriate ball size?
A: Smaller balls (5–10 mm) are generally used for fine grinding and particle refinement. Medium sizes (12–20 mm) offer balanced grinding efficiency, while larger balls (25–40 mm) provide higher impact energy for coarse particle reduction.
Q2: Why choose YSZ grinding balls over alumina balls?
A: YSZ grinding balls offer higher density, greater fracture toughness, lower wear rates and longer service life, resulting in improved milling efficiency and reduced contamination.
Q3: Are these suitable for high-energy planetary ball mills?
A: Yes. Their high density and excellent mechanical strength make them ideal for planetary mills, roller mills and other high-energy grinding systems.
Q4: Can these grinding balls be used with zirconia jars?
A: Yes. Using zirconia grinding balls with zirconia milling jars is recommended to minimise cross-contamination during milling.
Q5: What is the expected service life?
A: Under normal operating conditions, YSZ grinding balls typically last significantly longer than alumina, glass or standard ceramic grinding media due to their superior wear resistance.
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.
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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