Press Releases - XJet announces commercial availability of alumina ceramic


August 19, 2021

Press Release

Rehovot, Israel – August 19, 2021 

XJet Ltd. announces today the commercial availability of alumina, adding to its portfolio of additive manufacturing materials. Alumina (aluminum oxide) was chosen for development because of its wide use as a technical ceramic and the evident market demand to see parts produced with the benefits of XJet NanoParticle Jetting (NPJ) production.

The Alumina has been successfully tested over the course of a few months by a global customer in the USA. In conjunction with rigorous dialogue and testing with the industry, the decision to introduce alumina into the XJet repertoire fits the business’ desire to bring on the benefits of AM into the world of ceramics.

“As alumina is the most widely used technical ceramic, and the most cost-effective, it made perfect sense to introduce that as our second ceramic material after zirconia,” states Dror Danai, CBO, XJet.

Offering extremely high mechanical strength, high hardness as well as very good electrical insulation, alumina also has high wear resistance, high thermal conductivity and resistance to high temperatures. Both alumina and zirconia are technical ceramics with very good resistance to chemicals (non-corrosive), are great insulators and are very hard materials. As such they are hard to machine using traditional methods such as CNC, especially after they have been sintered into shape.

Now with XJet additive manufacturing (AM) systems, this limitation is lifted and manufacturers can capitalize on the benefits of additive manufacturing, creating parts with complex geometries and internal cavities that were not previously possible with traditional ceramic manufacturing technologies. XJet NanoParticle Jetting technology with its use of soluble support material can manufacture extremely accurate near-net-shape parts with ultra-fine detail and smooth surfaces.

“We are pleased to bring this extremely useful and valuable technical ceramic material to market, adding to our dynamic AM portfolio,” continues Danai. “New materials open up new avenues for our existing, as well as prospective customers and serve to enhance their business opportunities.”

Designers and manufacturers can see samples of parts made with XJet’s alumina material at several upcoming ceramics and AM shows: Ceramics Expo (Cleveland August 31st to September 1st), Rapid +TCT (Chicago, September 13th to 15th) and Formnext (Frankfurt, November 16th to 19th).


The popular technical ceramic, alumina, is now available for additive manufacturing on XJet AM systems

Ceramic manufacturers will now be able to capitalise on the benefits delivered by additive manufacturing, including more complex geometries, for alumina parts

Alumina (aluminum oxide) was chosen for development because of its wide use as a technical ceramic and the evident market demand to see parts produced with the benefits of XJet NanoParticle Jetting™ 

Note to editors

XJet executives are available for media briefings at Ceramics Expo in Cleveland, Ohio, USA from 31st August to the 1st of September on booth 925. To arrange a meeting, please contact Claire Russell-Jones or Calum Mitchell at Incus via or +44 1737 215200.

 About XJet

XJet is a provider of ground-breaking metal and ceramic additive manufacturing technologies and solutions. Founded in 2005, XJet developed and introduced the revolutionary NanoParticle Jetting™ technology. With a decade of research behind it, XJet NPJ technology enables the production of metal or ceramic parts with the same ease and versatility of inkjet printing without compromising throughput or quality. XJet’s world-class team of skilled industry veterans and dynamic R&D specialists holds over 80 registered and pending patents. Leveraging its proprietary technology and proven expertise, XJet is redefining the metal and ceramic AM industries.

 XJet Contact Information

 Alon Ziv, Marketing Communications Manager, XJet

Office: +972-8-931-4620, mobile: +972-50-756-7013, email:

Claire Russell-Jones, Account Director, Incus

Office: +44 1737 215200, email:

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