QSIL is a leading producer of fused quartz products, which are sold under the trademark ilmasil® and PH. Its products are widely supplied throughout the global market from the factories in Germany and The Netherlands. The sole focus of QSIL is the manufacture of fused quartz. This covers the raw material treatment, the fusion of heavy wall cylinders, the manufacturing of small and large diameter tubes, and the fabrication of customized products.
With many years' experience in the melting and fabrication of fused quartz, as well as having state of the art processing technologies and quality control equipment, QSIL has unique capabilities to supply our customers with products of the highest quality. As a result, QSIL materials have been certified by leading OEMs.
Our worldwide customer base relies on the quality and performance they receive from QSIL’s products. QSIL’s main objective is to supply products which bring the highest level of value to our customers.
QSIL acquires the PHILIPS fused quartz and special glass operation in the Netherlands
Launch of QSIL’s Premium Material ilmasil® PQ
ISO 50001 certification of energy management system
QSIL acquires all business operations and assets of Silicaglas Ilmenau GmbH (SGIL).
Expansion of production facilities and launch of re-flowing technology
Expansion of facilities with new production building
Launch of new laboratory for chemical analysis
Relocation of QSIL Corp. to Fremont (CA)
Establishment of US-affiliate QSIL USA
Expansion of facilities with a new fabrication building
ISO 9001 certification of quality management system
Launch of new production plant in Langewiesen near Ilmenau
Privatization by Management-Buy-Out
Establishment of QSIL GmbH through the spin-off of the quartz glass division of Ilmenauer Glaswerke GmbH
VEB Kombinat Technisches Glas Ilmenau starts industrial production of fused quartz glass
Center for manufacturing of technical glasses established in Ilmenau
Fused quartz is manufactured for the first time