Glass ceramics – CNC machining for MACOR® and Photoveel N®

Glass ceramics – CNC machining for MACOR® and Photoveel N®

CNC machining for glass ceramics

We have specialized for decades in the processing of special materials, most notably glass ceramics. Our plants are designed to enable highly efficient manufacturing, especially for components that need to meet high standards of technical quality.

We specialize in the machining of Macor®. This material combines the performance of a technical ceramic material with the versatility of a high-performance polymer, making it extremely easy to work. It can be turned and milled to produce even high-performance molded pieces and incredibly small precision parts. If you need the performance of a technical ceramic material in pieces with a complex shape, Macor® glass ceramics are perfect for you. They help significantly reduce the time between development and application, thus cutting costs.

Did you know?

  • The working temperature of Macor® for continuous operation is 800°C, with peaks of 1,000°C.

  • It can achieve machining tolerances of up to 0.01 mm and a surface quality of less than Ra 0.1.

  • The material has low thermal conductivity, and remains a good thermal insulator even at high temperatures.

  • It is an excellent electrical insulator and has been used successfully in the electronics and semiconductor industry.

  • Non-porous: It does not emit any gases when thoroughly heated in the furnace, making it the perfect material for ultra-high-vacuum applications.

  • It has high strength and rigidity.

  • Unlike high-temperature plastics, the material does not creep orwarp.

  • The material is radiation-resistant, and is thus also used in nuclear and aerospace applications.

  • It can be metallized in thin or thick layers, brazed and bonded with epoxy resin or frits.

  • It is non-wetting, has zero porosity and, unlike ductile materials, does not warp.


MACOR® in detail

Electrotechnical properties

  • High dielectric strength
  • High specific resistance
  • Low dissipation factor

Thermal properties

  • High working temperature
  • Moderate heat conductivity
  • High thermal expansion coefficient, can be bonded with ordinary glass

Chemical properties

  • Zero water absorption
  • Good chemical resistance
  • Is not wetted by molten aluminum, magnesium or tin


  • High stability
  • High scratch resistance
  • Dimensional stability
  • Isotropic and uniform
  • 50% higher impact resistance than Pyrex or Pyroceram

Vacuum impregnation

  • Zero porosity
  • No outgassing
  • Low helium penetration
  • Can be hermetically bonded with metals, ceramic materials and glass using solder glass

Metallization properties

  • Through vaporization of different metals
  • Can be sealed and coated
  • Hermetic sealing through the use of glass solder
  • Soldered seals on metallized parts

Top customer benefit

  • Cost-effective machining
  • Can be used to create highly complex shapes
  • Resistant to radiation
  • Low thermal conductivity
  • Very high working temperature
  • Good electrical insulator
  • Non-porous; no outgassing
  • Short lead times
  • No glost firing required

Get in touch with us – we’d love to help you out!



You can find more information in our Macor® brochure.

Download now (PDF)

Photoveel N® – A high-performance ceramic material

In addition to Macor®, we can also machine the extremely hard ceramic material Photoveel N®, which has an incredibly high bending strength, with the utmost precision. We do this using our own in-house production process and our years of expertise with the product and in this field.

Top MACOR® glass ceramics references

Other special materials 

We are the perfect partner when it comes to machine-cutting tricky materials.  Our production facilities offer tantalum, molybdenum, cobalt, pure silver, tungsten, Inconel, and many other special materials.