Rado unveils new range of Ceramic Injection Moulded watches

May 19, 2016

Rado unveils new hi-tech ceramic watches

Rado True Thinline Skeleton (Photo courtesy RADO)

Rado, based in Lengnau, Switzerland, is a pioneer in the use of Ceramic Injection Moulding for watch production. The company has further developed its use of high-tech ceramics with three further ceramic watches in the True family range.

The True Open Heart is produced in either matt or polished white zirconium oxide and is produced in a limited run of 500 individually marked pieces.

The multi-coloured True Colours collection features timepieces in three high ceramic colours; rich chocolate, navy blue and dark green. The 40 mm monobloc ceramic case fastens to the wrist with a matching Nato strap.

A further watch, the Rado True Thinline Skeleton is limited to an exclusive run of 99 watches and is engineered from polished black ceramic. It has a slim profile of just 7 mm.

Rado’s Ceramic Injection Moulded watches are manufactured from ultrafine, high purity zirconium oxide powder. Pigments are then added to the powder to set its colour. These are then mixed together with a polymer binder which acts as a moulding aid. The melted feedstock is injected under high pressure into a precision mould, which is designed to the final shape of the ceramic watch piece. The polymer binder is then removed using a chemical process and the pieces undergo sintering at 1450°C, during which they shrink by around 23%. The finished parts are fully dense and reach a hardness of 1250 Vickers.

Finally, critical dimensions are reworked with a diamond wheel. The pieces can then be polished, with a perfect high-gloss finish taking several days to achieve. Rado also applies a patented plasma carburising process to fully finished white ceramic pieces. Here CIM components are placed in a specially designed plasma furnace where the gases, activated by a plasma discharge at 20,000°C, trigger a chemical reaction that changes the composition of the surface of the ceramic. This results in a change of colour from white to a unique metallic grey.


Rado unveils new hi-tech ceramic watches - Rado true Colours

Rado’s Ceramic Injection Moulded multi-coloured True Colours watches (Photo courtesy RADO)

In the latest issue of PIM International…

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Extensive MIM, CIM industry and sinter-based AM industry news, plus the following exclusive deep-dive articles and reports:

  • Global Markets for Metal Injection Moulding: Data and insight from World PM2022 and beyond
  • HP Metal Jet: Growing momentum and new applications as Binder Jetting comes of age
  • Sintex: Exploring the full flexibility of metal powder-based processes for corrosion-resistant applications
  • Tritone’s MoldJet: The definition-defying AM technology advancing steadily toward commercialisation
  • The metal powder-based processing of titanium: MIM and AM-related highlights from the PMTi2022 conference
  • Opening the door to MIM parts: A case study on the conversion of die cast door hinges

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