Quality A

Spherical precision grinding (valve and sealing application with high requirement)

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Quality B

Lightly ground/overground (application with lower sealing requirements)

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Quality C

Cold deburred/ unground (applications without sealing requirement)

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What are rubber balls?

Rubber balls can be manufactured from different elastomers and are made of compact solid material - not foamed, without metal or cork core. cork core. Non-black colors are also possible for differentiation - please ask possible - ask for individual production batches. Therefore our balls are versatile. We offer, depending on the intended use different quality levels. SATTLER balls can range from from unmachined (cold deburred) to spherical precision ground. can be supplied.

Our 3 different basic quality levels 

1. spherically ground version / A-quality (precision quality). 

This quality has the highest roundness (e.g. ∅ 6.0 -> 0.07mm) and no visible or palpable burr with a matt and absolutely uniform surface 

 2. lightly ground/overground finish / B-quality (often also referred to as trovalized). 

This quality has very good roundness (e.g. ∅ 6.0 -> 0.10mm) and a barely noticeable burr(approx. 0.01×0.02mm) with a matte surface. 

 3. commercial version, unground / C-quality (cold deburred). 

This quality has good roundness (e.g. ∅ 6.0 -> 0.12mm) and a more visible and noticeable parting ridge(approx. 0.1×0.08mm) with a surface similar to the mold. More information can be found here.

Application

Rubber balls are used as sealing elements and tapping balls for cleaning screening systems. Due to their shape, they can be used universally, as they adapt optimally to the respective counterpart, for example the valve seat, without this having to be machined separately beforehand. For this reason, rubber balls can be found, among other things, in check valves as seals, in screening systems, as sieve drop balls or test specimens.

Diameters available on the tool side in [mm], which can be sampled in the short term:

2.0 - 2.36 - 2.5 - 3.0 - 3.18 - 3.5 - 4.0 - 4.5 - 4.75 - 5.0 - 5.5 - 6.0 - 6.35 - 6.71 - 6.75 - 7.0 - 7.14 - 7.92 - 8.0 - 8.26 - 9.0 - 9.53 - 9.91 - 10.0 - 10.21 - 11.0 - 11.1 - 11.5 - 12.0 - 12.7 - 13.41 - 14.27 - 15.0 - 15.88 - 16.0 - 19.05 - 19.51 - 20.02 - 20.65 - 22.23 - 23.83 - 25.4 - 25.58 - 31.75 - 34.93 - 35.2 - 39.1 - 41.28 - 50.8 - 51.79 - 63.5 - 69.85


Different sizes as new tools can be created in about 4-6 weeks.

Sizes available in stock