Planetary ball mills require grinding media that are characterized by a very high level of hardness and impact resistance. In this way, the grist is not contaminated with abrasion from the mill and the grinding balls. In addition, these very hard balls ensure that the grinding efficiency and quality are as high as possible. The finer the grinding result, the smaller the grinding media should be. It is often advisable to choose the grinding media from large to smaller in different steps. In this way, powders can be refined down to the nanoscale. Powders that are ground with planetary mills have a grain diameter about 1000 times smaller than the grinding media used. Our grinding balls are doped with yttrium oxide to further improve the hardness and service life compared to pure zirconium oxide.
The following sizes are available as standard: 0.15mm, 0.5mm, 1mm, 2mm & 10mm (tolerance approx. 5-10%, spherical). Various other sizes are available on request, we can offer you grinding balls made of other materials such as tungsten carbide, silicon nitride, agate, etc. on request.
Please note: The grinding balls have a high density of approx. 6g/cm3, contain 1 kilogram of balls a comparatively small volume.
We ship all our products free of charge to your address in Switzerland or Liechtenstein. Please find attached a short overview on frequently asked questions regarding our shipping policy.
Questions about shipping and delivery
||We process your order within 24h during the week.
||We always try to deliver as fast as possible. If you wish to receive an express delivery, please contact our customer service.
||For some devices exceeding a certain weight/volume, we will ship by carrier. If you have specific restrictions applying to your delivery address, please mention them during the checkout.
||We have most of our devices on stock! We can therefore ship your delivery within 48h by the Swiss Post. For lager or custom devices we generally have a lead time of 3-4 weeks. Please contact us if you would like to receive a precise lead time.
||Our corporate clients with a valid UID benefit from ordering on account. You will receive the invoice with the delivery. You can choose to have a separate invoice address during the checkout.
||If you need your personal order number on the delivery note or the iinvoice, please note the number during the chekout in the comments section.
||Non of course! We ship free of charge!