Description
Grinding ball 20 mm sintered corundum-1 is a ceramic milling medium for laboratory ball mills handling medium-hard and fibrous sample types. The ball is made from sintered corundum-1 (Al2O3), offering conditionally good abrasion resistance suited to materials that demand a harder grinding surface than agate while remaining compatible with standard laboratory bowls. Diameter is 20 mm and net weight is 0,0170 kg per ball. Recommended fill levels follow manufacturer practice: 25 balls for a 500 ml bowl (useful grinding charge 80–225 ml), 15 balls for a 250 ml bowl (30–125 ml) and 5 balls for an 80 ml bowl (10–30 ml). This grinding ball from manufacturer Fritsch is supplied as one piece so users can assemble the exact media count required for each bowl size and sample volume. It supports routine sample preparation in planetary and related mill systems where sintered corundum media are specified for medium-hard or fibrous matrices and controlled particle-size reduction is needed.
This article is part of Mills, grinders & homogenisers, in Test sieves & mills.
Key features
- Pack size: 1 pc
- Material: sintered corundum-1 (Al2O3)
- Diameter: 20 mm
- Abrasion resistance: conditionally good
- Technical Information Sheet:
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Questions about grinding ball 20 mm sintered corundum-1
What is this article?
grinding ball 20 mm sintered corundum-1 is the article on this page. Luminix Health distributes Fritsch for laboratory use. It sits in Mills, grinders & homogenisers, inside Test sieves & mills, in Lab instruments.
A mill, grinder or homogeniser reduces particle size or breaks a tissue before an extraction. The rotor and the sieve insert decide the result. A knife mill and a bead mill are different machines. The sample has to tolerate the heat the motor puts into it.
A test sieve sorts particles by whether they pass an opening. Wire mesh and perforated plate are two ways of making that opening, and the nominal size is not a suggestion. A sieve shaker repeats the motion so the result does not depend on how hard someone shook by hand. A mill or grinder makes the particles smaller before they are sieved. The certificate of the sieve, and the opening size, are what an audit asks for. Measurement practice around mass and dimension sits with the BIPM, EURAMET and BELAC.
Which category should I open next?
The category is Test sieves & mills. The sub-category is Mills, grinders & homogenisers. The catalogue is Lab instruments.
Shelves beside this one are Test sieves (wire mesh), Test sieves (perforated plate), Sieve shakers and Sieve accessories (lids, pans, rings).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.