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Micromachining and Precious Metal Alloys for Medical Applications

Cendres+Métaux is specialised in the production of implantable, micromechanical components or systems with complex geometries made from precious metal or titanium alloys.

Medical Division,
Rue de Boujean 122,
PO Box,
CH-2501 Biel/Bienne,


Cendres+Métaux is specialised in the production of implantable, micromechanical components or systems with complex geometries made from precious metal or titanium alloys.

We also offer non-metallic implant solutions with machined or moulded components made from PEKK, the newest generation in high-performance polymers. As well as our turning, milling and moulding capabilities, we can also support our customers with different surface treatments and packaging options, all from one place.

Engineering and packaging of micromechanical components

Are you wanting to launch a new medical device but find yourself missing a reliable source for your micromechanical components? Our competent and experienced engineering and sales teams will be pleased to assist you with any technical questions. They will conduct a feasibility analysis and ensure an ideal manufacturing process for serial production.

We provide comprehensive R&D services.
We offer metallurgical analytics in our own accredited laboratories.
We have a broad range of manufacturing competences.
Injection moulding capacity of 11cm³ per machine.
We offer different surface treatments, which are all catered to your specific requirements.
Structured surface of a dental implant through a microscope.
One of our cleaning lines with direct access to clean rooms.
Our clean rooms meet exceptionally high standards.
Pekkton® is comparable with human dentin in terms of compressive strength.
We provide inventory management services.

When it comes to packaging, we have a great array of standard options available: trays, deep well trays, tubes, capsules, blisters, peel pouches etc. Nearly all of which can be adapted to customer requirements and special packaging inquiries are always welcome.

Our engineers will present you with different options and together you will be able to define the best possible packaging option for your device. Furthermore, they will help you to establish a realistic project schedule and will supervise your project from the idea through to the successful market launch.

Inspection to certification of micromechanical components

If required, this process can also include the establishment of the relevant legal documentation, in which case the quality management and regulatory teams will advise you in this matter. Quality control plays an essential role at Cendres+Métaux. Not only the dimensions, but also materials, surface finishes and packaging are continuously recorded and monitored so that a consistently high-level of quality can be guaranteed.

Should you have high cleanliness requirements and be worried about the production environment your device is produced in, our in-house microbiologist is always ready to help. Cendres+Métaux is constantly monitoring the production environment and validated cleaning processes to ensure a safe and traceable manufacturing operation.

Casting and micromachining

Cendres+Métaux has more than 125 years’ experience in refining, casting and processing precious metals. To ensure that the highest quality requirements for homogeneous alloys are met we operate our own accredited metallurgical and analytical laboratories according to ISO/IEC 17025. All our casts are first analysed, documented and approved before they can be further processed into semi-finished products.

Because of our long refining and casting tradition, biocompatible precious metal fine wires, strips, sheets and bars naturally belong to our wide range of customised products. Our wires offer an excellent radiopacity, are biocompatible and perfectly applicable for long-term implantable uses.

They exhibit a completely even surface and maintain the tightest tolerances. So if you are interested in high-quality, fully biocompatible, homogenous, radiopaque, precious metal fine wires, bars or strips your search stops here.

Development to analysis of materials and alloys

Our internal analytical and materials testing laboratories characterise and test new materials, verify the quality of alloys and investigate complaints. The most important procedures have been accredited by the Swiss Accreditation Service in accordance with ISO/IEC 17025 and are registered under STS 174. In addition, the analytical laboratory is regularly inspected by the Swiss Precious Metals Control authorities.

The accreditation indicates that our competences are recognised by the Accreditation Services. It shows that our laboratories make independent testing decisions, employ competent staff, work with validated methods and are able to trace the tested merchandise back to the test results.

Therefore, we assure the application of medical device and precious metal legislations which helps to guarantee the conformity of our products.

High-performance polymers for dental applications

Cendres+Métaux recently introduced the high-performance polymer Pekkton®, a material based on OPM’s OXPEKK®-IG, to the dental world. Pekkton will allow its customers to break new ground in dentistry product development. Over the past decades, our thermoset and thermoplastic polymers have been widely employed in the dental market.

The material most often used is called PEEK, a fibre-reinforced thermoplastic (polyetheretherketones). But because of its crystalline structure, PEEK’s performance is limited, and the complex manufacturing process needs fingertip accuracy.

However, Pekkton is based on another member of the polyaryletherketone family, polyetherketoneketone (PEKK) and has been specifically developed for dental applications. Unlike PEEK, the Pekkton line offers crystalline as well as amorphous structures, which means a wider range of products can be offered.

Furthermore, the material has a slow rate of crystallisation, making it possible to obtain tight tolerances without expensive and time-consuming post-treatments. With its greater processing flexibility, the Pekkton line will contribute to the development of successful products that provide both structural and aesthetic satisfaction.

For implantable medical devices outside the mouth (short and long-term applications), Cendres+Métaux offers a high-performance polymer named OXPEKK-IG. Similar to Pekkton, OXPEKK-IG200 offers a high-processability, including optimal flow and crystallisation kinetics, as well as considerable mechanical properties (about 50% greater compressive ultimate strength than PEEK, most other properties about 10-15% greater than PEEK).

Simulation software for medical implants

Finally, Cendres+Métaux can even support you with your marketing documentation. If, for example, you are about to finalise your instructions for use but are still missing meaningful images, or you would like to post an animated video on your website showing your implant in action, then all you need to bring is your 3D files and instructions, and there is almost no end to the possibilities. Equipped with the latest 3D animation software, Cendres+Métaux’s in-house specialists will create fantastic visualisations of your product.

About Cendres+Métaux

Cendres+Métaux was founded in 1924 in the bilingual Swiss watch-making metropolis Biel/Bienne. We develop, produce and sell proprietary products, as well as customer-specific products and services for various branches of the industry. More than 430 employees combine traditional craftsmanship with innovative solutions to ensure our customers’ success. Cendres+Métaux is accredited and certified ISO 13’485 / 9001 / 14001, as well as FDA registered.

Components for Wherever Small and Complex Implants are Needed

We serve all kinds of segments of the medical environment. Our components can be found in nearly all parts of the human body: the mouth, inner ear, nose, eyelids, spines, heart, the cardiovascular system and even in brains. Basically, everywhere where small and complex impants are needed.

Milling Services Using Rotary Transfer Machine

The rotary transfer machine is particularly well-suited for milling components with complex geometries and dimensions of approximately 8-42mm, which have a processing time of up to 12 minutes.

Cendres+Métaux Appoints New CFO

The board of directors has appointed Christine R Schneider as chief financial officer of Cendres+Métaux Group.

7 November 2013

Breaking Ground for the New Building

In front of a remarkable crowd composed of staff members, architects and construction specialists Cendres+Métaux's CEO Freddy Lei swung the huge excavator on November 2nd, 2012.

8 January 2013

Cendres+Métaux: Heading into a New Future

As an attractive business partner and employer, Cendres+Métaux is looking back on a constant growth. Even in economically difficult times, the company with its headquarters in Biel/Bienne (Switzerland) was able to extent their business and to create new jobs.

8 January 2013

Cendres+Métaux SA

Medical Division
Rue de Boujean 122
PO Box
CH-2501 Biel/Bienne

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