Fast
Shipping
Quick,
Simple Ordering
Clear,
Upfront Pricing
Over 30,000
Happy Customers
Exceptional
Customer Service
Industry's Largest
Catalog
Zirconium Oxide Grinding Balls, 20mm
Product Overview: The 20mm Zirconium Oxide Grinding Balls are essential media for sample preparation when used with Fritsch Planetary Mills. Placed inside grinding bowls with your sample, these balls facilitate the size reduction process through high-impact energy. The final particle size is influenced by the size, quantity, and material of the grinding balls used.
General Grinding Guidelines:
- Ball Size vs. Final Product: The size of the grinding balls directly impacts the final particle size of your sample. Generally, larger balls produce a coarser result, while smaller balls yield a finer powder. For optimal results, avoid mixing different ball sizes within the same grinding process.
- Ball Quantity: The number of balls used affects both grinding time and final particle size distribution. Increasing the number of balls can shorten processing times and produce a finer result up to an optimal loading point.
- Loading Volume: For effective grinding action, it is recommended not to fill the grinding bowl more than two-thirds full with the sample and grinding media combined. At least one-third of the bowl's volume should remain empty to allow for sufficient movement and impact.
- Material Selection: Choose grinding media made from a material harder than the sample being processed. For particularly hard materials, using Zirconium Oxide balls can significantly enhance grinding efficiency and minimize wear. Note that using balls and bowls of different materials may introduce a risk of cross-contamination.
Specifications:
- Diameter: 20mm
- Material: Zirconium Oxide (ZrO₂)
- Density: 5.7 g/cm³
- Applications: Highly recommended for grinding fibrous, abrasive, and tough samples where minimal contamination is critical.
- Bowl Compatibility: Suitable for use with 80ml, 250ml, and 500ml grinding bowls (sold separately).
- Quantity: Balls with a diameter of 3mm or less are sold in packs of 100. All other sizes, including this 20mm ball, are sold individually.
Compatible Accessories:
- Classic Grinding Bowls
- Premium Grinding Bowls
