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When every dimen­sion counts. Capillary and precision tubes from ETHEN

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22. April 2026

Precision tubes for indus­tri­al appli­ca­tions form the foun­da­tion for safe and sta­ble process­es across a wide range of tech­ni­cal appli­ca­tions. There­fore, ETHEN devel­ops and man­u­fac­tures solu­tions that stand out for their excep­tion­al precision, tight tolerances, and reli­able materials. As a result, cus­tomers ben­e­fit from com­po­nents that per­form con­sis­tent­ly, even under demand­ing conditions.

Appli­ca­tions that demand trust

In instru­men­ta­tion, absolute reli­a­bil­i­ty is essential. Tubes must oper­ate with last­ing sta­bil­i­ty, even under crit­i­cal con­di­tions. In hydraulic sys­tems, the focus is on resilience and dura­bil­i­ty. Pres­sure, move­ment, and fluc­tu­at­ing loads require solu­tions that fit pre­cise­ly. In high-pres­sure appli­ca­tions, every dimen­sion mat­ters. Wall thick­ness and diam­e­ter must be pre­cise­ly matched to the mil­lime­ter. Added to this are spe­cial­ized fields of appli­ca­tion with spe­cif­ic require­ments. In med­ical tech­nol­o­gy, the tubes are used as can­nu­las; in measurement and con­trol tech­nol­o­gy, as pyrom­e­ter tubes. For high tem­per­a­tures or aggres­sive atmos­pheres, ETHEN man­u­fac­tures pro­tec­tive tubes from durable alloys. They are robust, durable, and reli­able in use.

Dimen­sions and Tolerances That Fit

The foun­da­tion for this is a manufacturing process designed for precision. Capillary and precision tubes are produced with out­er diameters rang­ing from 0.7 to 19.05 mil­lime­ters and wall thick­ness­es from 0.1 to 2.50 mil­lime­ters. Tight tolerances ensure a pre­cise fit. The stan­dard tolerances are ±0.05 mil­lime­ters for the out­er diam­e­ter and ±10 per­cent for the wall thick­ness. These are sup­ple­ment­ed by spec­i­fi­ca­tions in accor­dance with DIN EN ISO 1127 D4/​T4. If the appli­ca­tion requires it, tighter tolerances can also be achieved.

Lengths and Fur­ther Processing

Anoth­er advan­tage lies in the lengths. ETHEN man­u­fac­tures tubes up to 6,400 mil­lime­ters and cuts them pre­cise­ly to the desired length. The result is accu­rate to the mil­lime­ter and repro­ducible. Even the small­est spec­i­fi­ca­tions can be reliably fulfilled.
In addi­tion, our own tubes are used to pro­duce pre­cise sleeves start­ing at 2 mil­lime­ters in length, with exact diameters and a low-burr sur­face. Man­u­fac­tured in var­i­ous materials, they are opti­mal­ly designed for safe fur­ther pro­cess­ing.

Materials that make the difference

The mate­r­i­al is a deci­sive fac­tor. ETHEN man­u­fac­tures capillary and precision tubes exact­ly to cus­tomer spec­i­fi­ca­tions, tai­lored pre­cise­ly to the appli­ca­tion and indus­try. In addi­tion to stainless steel and tita­ni­um, nick­el alloys are used, which are char­ac­ter­ized by high cor­ro­sion resis­tance, tem­per­a­ture resis­tance, and good work­a­bil­i­ty. ETHEN brings decades of expe­ri­ence to the field of tita­ni­um in par­tic­u­lar. A glob­al net­work ensures mate­r­i­al avail­abil­i­ty. At the same time, close coop­er­a­tion with Euro­pean man­u­fac­tur­ers ensures sta­ble sup­ply chains. Pro­duc­tion takes place on our own tube draw­ing machines. Made in Germany, pre­cise, test­ed, and reliable.
Even small quan­ti­ties can be flex­i­bly accom­mo­dat­ed. Test orders and sam­ples pro­vide plan­ning secu­ri­ty and build trust.
For special require­ments, ETHEN also process­es spe­cial­ty materials and high-alloy materials. We work with our cus­tomers to make these selec­tions in an open, trans­par­ent, and solu­tion-ori­ent­ed man­ner. This results in solu­tions that are tech­ni­cal­ly sound and stand up to the rig­ors of every­day use.

At home in many indus­tries. Includ­ing yours.

Take a look at the ETHEN stock list and find the right solu­tion for your appli­ca­tion. Or con­tact us directly.