Capillary tubes - Import export

Twisted glass tubes and capillaries are produced simply by heating and twisting. By this means, the tubes obtain a large internal surface in relation to their length, enabling them to be used e.g. as cooling sections. Another application area is for ornamental and design articles.

If required, we can supply capillaries and tubes with predetermined break points. For this purpose, the component is notched at the required breaking location. If the component is then subjected to a bending force, it will break at the notched point. To prevent unintended breakage, we recommend using medium or thick-walled tubes and capillaries.

The distinctiveness of these capillaries is their very thin wall-thickness in relation to their diameter. The extremely thin walls lead to the special feature of these capillaries to be deformed easily. Additional features linked to the thin wall-thickness are minimal optical distortion as well as very low absorption for a wide range of radiation. This feature is used e.g. for the construction of optical measuring cells. Materials Soda-lime glass (AR, I860, PH360 etc.) Gamma sterilized soda-lime glass Borosilicate glass (DURAN©, PYREX©, SIMAX© etc.) Neutral glass (FIOLAX© and DUROBAX©) Aluminum silicate glass (Schott 8252/8253) Quartz glass (naturally melted quartz glass and synthetically produced quartz glass, incl. F300) Lead glass (lead content up to 28%) Sealing glasses for various metals such as: kovar, molybdenum, steel, silver, platinum, palladium Process of Production Like most of our capillaries the ultrathin capillaries are manufactured using the redrawing method....

To cut capillary tubes, special blades are required, which are made of a material that is harder than glass. Normally, blades with an extremely hard diamond edge are used. However, zirconium oxide blades are a less expensive and convenient alternative. They are also very hard, and can be sharpened easily at any time by simple regrinding. These blades are excellently suited for cutting glass capillaries, as the flat blade can be drawn accurately across the glass surface. Moreover, the capillaries can be parted cleanly at the incision point. This method can even be used on extremely fine test tubes with wall thicknesses of only 0,01 mm. For convenient and secure use in one hand, the blades can be clamped into our aluminium blade holders. Therefore, we recommend requesting the blade holder as well. Glass cutting-tools

A sensor only is not a responsible for good measurement. Often it depends on the surrounding conditions. Thick-walled glass-capillary-sections serve for the sensor as solid basis. Fitted on top, the sensor is mostly islolated from thermal and other environmental impacts. Solid connections between glass and metal For the production of glass-feed-throughs or glass metal sealings, precise cuttings of capillary-tubes are needed. These special tubes are glasses, which are adjusted to the physical parameters of the metals. We draw and cut such capillaries precisely to final size. Thereby the glasses can be fused on the customers wires and pins, which are made of metal. Scatter discs for the endoscopy Glass rings in different sizes with two satin cut sides, allow to manufacture small ring lightings for example for the endoscopy. By means of the rough surfaces of the glass rings, the light, coupled on the back, is refracted and diffusely spread. Different diameters and thicknesses as...

The major difference between our standard capillaries and conical capillaries lies in the different opening diameters on both ends. Whereas standard capillaries are manufactured with the redrawing-method conical capillaries are produced in a discontinuous process. Materials Soda-lime glass (AR, I860, PH360 etc.) gamma sterilized soda-lime glass Borosilicate glass (DURAN©, PYREX©, SIMAX© etc.) Neutral glass (FIOLAX© and DUROBAX©) Aluminum silicate glass (Schott 8252/8253) Lead glass (lead content up to 28%) Sealing glasses for various metals such as: kovar, molybdenum, steel, silver, platinum, palladium Process of Production During the production process of the conical capillaries a straight tube or capillary is heated and drawn. By drawing the capillary a pointy conical, tapered form, a so-called double-tip, is formed. The tip can be parted in the capillary’s smallest diameter and results in a larger diameter on one side which is determined by the blank used in the process, as...