Glass capillaries
Overview of all capillary profiles: Variety in perfection
In addition to the standard geometry of a simple, round cross-section with various wall thicknesses, special geometries that include flat, square and triangular capillaries are also available. Here, you will find a detailed overview of a wide variety of capillary profiles that we have already created for our customers – everything from the simple, round tube to multiple bundled multi-channel capillaries.
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We use a wide variety of glass types when manufacturing our capillaries. This glass is sourced from both leading glass manufacturers and smaller suppliers of specialist glass, both of whom can guarantee a high standard of product quality with their meticulous manufacturing processes. For several applications, we use glass from specialist suppliers who are able to produce the tube glass themselves in small quantities and on a laboratory scale.
We use the following glass types, among others:
- Soda-lime glass (AR, I860, PH360 etc.)
- Borosilicate glass (DURAN©, PYREX©, SIMAX© etc.)
- Neutral glass (FIOLAX© and DUROBAX©)
- Aluminum-silicate glass (Schott 8252/8253)
- Quartz glass (naturally melted and synthetically produced quartz glass, such as F300 Heraeus)
- Lead glass (lead content max. 28%)
- Sealing glass for various metals such as Kovar, molybdenum, steel, silver, platinum, palladium
- Special glass such as UV glass or radiographic glass
We manufacture capillaries with an outer diameter of between 0.05 and 10 mm and with a wide variety of wall thicknesses and inner diameters. For small diameters, wall thicknesses of up to 10 μm (0.01 mm) are possible. In order to guarantee high-precision workmanship (even for micro values), our smallest inner diameter is 4–5 μm and the wall thicknesses are 10–20 μm. Our standard production lengths are 1060 mm and 1500 mm, however flexible production processes allow for the manufacture of customer-specific lengths and cuts within a range of 1–3000 mm. With small capillaries, which have a diameter of up to approx. 0.25 mm, lengths greater than 3000 mm are even possible.
Our glass capillaries are used in a wide variety of sectors and applications. Their presence is not always obvious, for example when used as micropipettes or sample tubes in NMR measuring technology. Our capillaries are often installed deep inside electronic components or as non-recoverable parts in forming processes.
Important areas of application:
- Analytics, measurement technology
- Chemistry and pharmacology
- Physiology and cell biology
- Medicine and in the laboratory
- Automotive sector, aerospace
- Electrical engineering and sensor technology
- Telecommunications and data transfer technology
- Display and lighting technology
