The dominant use of a fused quartz cylinder is to be cut to flanges. These flanges are used throughout the semiconductor industry.
The alternative use of fused quartz cylinders is as starting material for redrawing, to make fused silica tubing.
Heraeus Quarzglas offers a selection of quartz cylinders in most available material grades. The outer diameter of fused silica cylinders ranges from 100 mm up to 550 mm. For a small selection of available sizes refer to the table. Depending on the customer's choice the cylinder is sold ground or unground.