ROBU® Glasfilter-Geräte GmbH becomes part of the QSIL group of companies.

ROBU® Glass Filter Devices Ltd.

20 February 2023 − QSIL SE, a specialist in solutions made of high-performance materials, is acquiring ROBU® Glasfilter-Geräte GmbH, based in Hattert, Germany, effective Feb. 16, 2023.

ROBU® Glasfilter-Geräte GmbH specializes in the production of sintered glass filter elements made of borosilicate and quartz glass, as well as glass filter devices with glass filter elements built into them. The product range extends from standard laboratory equipment such as filter crucibles, nutsches, candles and funnels to many custom-made sintered glass elements, especially for technical solutions in the fields of pharmacy, sensor technology, chromatography and nuclear medicine. With the acquisition, the QSIL Group successfully continues the continuous growth course of the past years.

The renewed increase in technology and material know-how will result in decisive advantages for the broad combined customer base of QSIL and ROBU: By joining forces, the Group will strengthen its own solution expertise in the quartz and specialty glass business and enable its customers to achieve even better results.

Combined with expertise in the development and manufacture of advanced industrial and engineering ceramics and refractory metals, the QSIL Group is able to offer its customers a complete range of mission-critical solutions for the semiconductor, medical device, aerospace, chemical and mechanical engineering industries from a single source.

Heinz Fabian, Michael Keitz and Erik Neuberg, the managing directors of QSIL SE, are very satisfied with the new acquisition and are convinced that with ROBU® they have gained an efficient company that will be an excellent addition to the group of companies. “With this acquisition, we are consolidating and expanding our strong position as a manufacturer of quartz and specialty glass solutions for diagnostic-analytical applications in medical technology and related fields. We are very much looking forward to working with the competent and highly motivated workforce at the Hattert site and expect this to generate a wide range of synergies for the benefit of our customers around the world.”

Company profile ROBU® Glasfilter-Geräte GmbH

ROBU® is the leading specialist for the production of sintered glass filter elements made of borosilicate as well as glass filter devices with glass filters built into them. At the company’s sole location in Hattert, around 30 employees manufacture products under the company’s own VitraPOR® brand as well as customer-specific OEM glass filter products. The company generates more than half of its revenue by selling its products to customers from abroad.

Company Profile QSIL SE

QSIL is a leading international specialist for refractory, high-temperature and high-purity high-performance materials. These include quartz and specialty glass, industrial and engineering ceramics, and refractory metals. With over 1,000 employees at production sites in Thuringia, the Netherlands and England, QSIL generates annual sales of over 200 million euros. The dynamically growing company is active in more than 50 countries. Customers include major companies from Europe, Asia and America.




Business segment



Ilmenau, Hattert

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