Beschreibung
PTFE sealing ring for 250 ml grinding jars is a replacement gasket intended for classic line planetary ball-mill bowls. The seal features a diameter of 90/75 mm and fits all 250 ml grinding jars of the classic line series except those made from agate or silicon nitride. Manufactured from PTFE, it offers chemical resistance suitable for a wide range of sample matrices encountered in mechanical alloying and powder comminution. Supplied as one piece with a net weight of 0,0100 kg, the ring enables quick restoration of jar integrity after wear or contamination. Laboratories performing high-energy milling depend on intact seals to contain powders and prevent cross-contamination between batches. The component from manufacturer Fritsch matches the geometry required by the classic line 250 ml bowls, ensuring correct lid closure. Installation of the PTFE ring supports reliable operation during extended grinding cycles and helps maintain clean working conditions inside the milling chamber. This accessory is appropriate for materials science, ceramics research and inorganic sample-preparation applications that utilise 250 ml grinding jars.
This article is part of Mills, grinders & homogenisers, in Test sieves & mills.
Key features
- Pack size: 1 pc
- Material: PTFE
- Diameter: 90/75 mm
- Jar volume: 250 ml
- Compatible with: classic line grinding jars (except agate & Si3N4)
- Technical Information Sheet:
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Questions about seal ring PTFE for grinding bowls 250 ml
What is this article?
seal ring PTFE for grinding bowls 250 ml is the article on this page. Luminix Health distributes Fritsch for laboratory use. It sits in Mills, grinders & homogenisers, inside Test sieves & mills, in Präzisionsinstrumente.
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 Präzisionsinstrumente.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.