Dis­cov­er the vari­ety of our precision tubes

At ETHEN ROHRE, we are proud to be your reli­able manufacturing part­ner for capillary and precision tubes with diameters rang­ing from 0.7 mm to 19.05 mm. Our precision and capillary tubes are man­u­fac­tured in Aachen with the high­est quality “Made in Germany” on machines devel­oped in-house that can be quick­ly con­vert­ed.

Our inno­v­a­tive machines and pro­duc­tion sys­tems offer you a sig­nif­i­cant advan­tage: faster and more flex­i­ble pro­duc­tion. Regard­less of whether you need a small or large batch, our sys­tems enable us to fulfil your orders effi­cient­ly and with­in a fast timeframe.

We offer var­i­ous types of tubes to suit your require­ments and areas of appli­ca­tion. Among them are

  • - Instru­men­ta­tion tubes
    This type of tube is used to pro­tect, insu­late or guide var­i­ous sen­sors, mea­sur­ing devices or oth­er com­po­nents, while at the same time enabling pre­cise and reli­able measurement. They are often used in med­ical tech­nol­o­gy or measurement and con­trol technology.
  • - Hydraulic capillary
    This type of tube, as the name sug­gests, is used in hydraulic sys­tems to trans­port and con­trol flu­ids under pres­sure. They must be able to with­stand high pres­sure while ensur­ing smooth and reli­able trans­mis­sion of hydraulic ener­gy. They are usu­al­ly used in the auto­mo­tive indus­try, indus­tri­al plants and many oth­er applications.
  • - High-pres­sure tubes
    As the term implies, these tubes are used for extreme­ly high pres­sure, that they have to with­stand with­out break­ing or fail­ing. For this rea­son, their areas of appli­ca­tion include the oil and gas industry.
  • - Can­u­la
    Cannula tubes are typ­i­cal­ly thin-walled and have a small diam­e­ter to enable the pro­duc­tion of fine and sharp med­ical nee­dles. As a result, cannula tubes are used in a wide range of appli­ca­tions in the med­ical tech­nol­o­gy sector
  • - Pyrom­e­ter tubes
    Pyrom­e­ters are devices that are used for non-con­tact measurement of tem­per­a­tures by detect­ing the heat radi­a­tion of an object. Pyrom­e­ter tubes there­fore serve as pro­tec­tion and guid­ance for the sen­sors or mea­sur­ing heads of the pyrom­e­ters. These heat-resis­tant tubes are used in measurement and con­trol technology.
  • - Pro­tec­tive tubes
    We man­u­fac­ture our ther­mo­cou­ple pro­tec­tion tubes from Alloy 600, a nick­el-chromi­um-iron alloy fea­tur­ing good mechan­i­cal prop­er­ties in all tem­per­a­ture ranges. In addi­tion to their tem­per­a­ture resis­tance, they are char­ac­terised by their sta­bil­i­ty against chlo­rine, hydro­gen chlo­ride, oxi­da­tion, car­buri­sa­tion and sticking.

How to request your next capillary and precision tubes

With our web­site relaunch, we not only want­ed to give our web­site a new look, but also make it a lot eas­i­er for you to nav­i­gate and make a request. It was very important to us that the exist­ing stock list pro­vides an even bet­ter overview of stock lev­els and sim­pli­fies the enquiry process.

To ensure that your next request works smooth­ly, we are pro­vid­ing you with a brief guide and overview of how to make a request via our new stock list. Or have a look at our video instructions. 

ETHEN ROHRE Stock list

To access the stock list, please click on the fol­low­ing link, www​.ethen​-rohre​.de/​e​n​/​s​t​o​c​k​-​l​i​st/. This will take you direct­ly to an overview of all the tubes we cur­rent­ly have in stock.

To make it eas­i­er for you to find your capillary and precision tube, you can fil­ter by mate­r­i­al and the dimen­sions out­er (mm), wall thick­ness (mm) and inner (mm).

The infor­ma­tion on the overview page is organ­ised as follows:

  • Mate­r­i­al num­ber and out­er dimen­sion x wall thickness
  • Mate­r­i­al designation
  • Cur­rent stock in metres

Select the right tube for you here. This will take you to the fol­low­ing prod­uct view:

ETHEN ROHRE Stock list product overview

Regard­less of which capillary or precision tube you have select­ed, the prod­uct page always has the same struc­ture. At the top, you will see the prod­uct des­ig­na­tion, which is made up of the mate­r­i­al num­ber and exter­nal dimen­sion x wall thick­ness.

On this page, you can com­pare all the tech­ni­cal data with the tube you require. To send a request, enter your desired quan­ti­ty in metres in the field under Quantity.

Note: If you enter a quan­ti­ty that exceeds our stock, the val­ue will be updat­ed to the num­ber of the cur­rent stock.

Once you have entered your quan­ti­ty, select the box next to the batch num­ber and then just click on Bulk add to cart.

You can check your selec­tion in the shop­ping bas­ket and then you will be tak­en to the checkout.


To the video instructions.

Min­i­mum order val­ue 500 EUR

To mark the offi­cial launch of our new ETHEN ROHRE stock list, we are launch­ing the fol­low­ing short-term promotion:
Instead of the usu­al min­i­mum order val­ue of EUR 850, we are cur­rent­ly offer­ing a min­i­mum order val­ue of EUR 500 until the end of May 2024.

We would like to thank you for your loy­al­ty and trust in us.

Is your capillary or precision tube not on the stock list? Then send us a pro­duc­tion request!

Thank you for your loy­al­ty — 105th anniver­sary of ETHEN ROHRE

We at ETHEN ROHRE are proud to be cel­e­brat­ing our 105th anniver­sary this year.

Since our first com­pa­ny ori­gins in 1919, we have con­tin­u­ous­ly focussed on pro­duc­ing high quality tubes. In doing so, we have nev­er shied away from adapt­ing to indus­try standards and expand­ing our service port­fo­lio.

ETHEN ROHRE 105 years

Tra­di­tion and inno­va­tion since 105 years

1919 First ori­gins of the company
1951 Start of the pro­duc­tion of hypo­der­mic needles
1959 Foun­da­tion of the com­pa­ny as it is today
1960 Devel­op­ment of the tube draw­ing method as it is used today
1961 Opti­mi­sa­tion of manufacturing meth­ods & sources of procurement
2009 Change of name from J. & J. Ethen into ETHEN ROHRE
2014 Invest­ment pro­gramme Pre­ci­sion­Plus is completed
2016 Use of com­pa­ny-wide ERP /​ PPS software
2020 Refit­ting of draw­ing benches
2021 Invest­ment in a PV system
2022 Com­mis­sion­ing of two semi-auto­mat­ic straight­en­ing machines
2024 Dou­bling the capac­i­ty of the PV system

We would like to thank you on our anniver­sary. Your sup­port and trust are very important to us and moti­vate us to keep improving.

Here’s to many more suc­cess­ful years and a great co-operation!

Quality that can be shown off

Capillary and precision tubes in small and large dimen­sions are a fun­da­men­tal component in var­i­ous areas of appli­ca­tion. In appa­ra­tus and equip­ment engi­neer­ing, for exam­ple, tubes fulfil crit­i­cal func­tions that increase or decrease the quality of the sys­tem. A mil­lime­tre too much or too lit­tle can have crit­i­cal con­se­quences here.

For this rea­son, we have ded­i­cat­ed our­selves to precision and a pas­sion for capillary and precision tubes. In order to fulfil this require­ment, we reg­u­lar­ly under­go fur­ther train­ing and have our­selves certified.

With our cer­tifi­cates, we assure you that we have the nec­es­sary knowl­edge for your indus­try and can offer you appro­pri­ate solu­tions. We also assure you of this right from the start with the quality assur­ance agree­ment. In it, we give you our seal of approval that we deliv­er out­stand­ing solu­tions not only accord­ing to all standards, but also accord­ing to our own standards.

We can also pro­vide evi­dence of the fol­low­ing cer­ti­fi­ca­tions and standards for our work:

  • approved accord­ing to TÜV-Cert DGR 2014/​68/​EU
  • cer­ti­fied accord­ing to DIN EN ISO 9001:2015
  • tubes accord­ing to DIN EN 10204:2004, accep­tance test cer­tifi­cate 3.1 or 3.2 and 2.2 on request
  • Access to exter­nal test laboratories
  • KTA approval for the man­u­fac­ture of capillary and precision tubes for use in nuclear pow­er plants KTA 3201.1
  • PSB cer­ti­fi­ca­tion in accor­dance with VDA QMC for prod­uct safe­ty in the auto­mo­tive industry

Expan­sion of the pho­to­volta­ic system

Last year, we informed you that a pho­to­volta­ic mod­ule had found a place on the roof of our hall. At that time, the sys­tem had a val­ue of 40 kWp and our aim was to expand the sys­tem further.

So this year the time has come, and we will be start­ing the expan­sion of our pho­to­volta­ic sys­tem this month. This expan­sion will dou­ble the capac­i­ty to an impres­sive 80 kWp. We are thus tak­ing a fur­ther step towards a sus­tain­able future and demon­strat­ing our com­mit­ment to envi­ron­men­tal protection.

Your full-service spe­cial­ist for capillary and precision tubes

ETHEN Tub­ing Plus: The service for your capillary and precision tubes

We are more than “just” the manufacturer of capillary and precision tubes. With our service for capillary and precision tubes, we offer every­thing that is need­ed: inno­v­a­tive ser­vices with manufacturer expertise.

We take care of:

  • - Repair and main­te­nance after tube dam­age in your warehouse.
  • - Coor­di­na­tion, documentation and logis­tics of tub finishing.
  • - Organ­i­sa­tion and test­ing for special standards in spe­cialised laboratories.
  • - Dimensional adjust­ments and real­i­sa­tion of pos­si­ble pro­cess­ing steps for tube adjustments.
  • - Con­tin­u­ous devel­op­ment of our exper­tise for tube inno­va­tions and prod­uct developments.

Our service for capillary and precision tubes includes

  • Con­tract annealing
    Our experts in con­tract anneal­ing offer not only clas­sic soft anneal­ing, but also semi-hard and hard tube fin­ish­es, based on many years of expe­ri­ence, dig­i­talised knowl­edge man­age­ment and accu­rate documentation.
  • Con­tract straightening
    With high­ly spe­cialised machin­ery and an expe­ri­enced team spe­cial­is­ing in high-quality alloys, we ensure that warped or bent tubes are opti­mal­ly usable again.
  • PMI with XRF
    ETHEN Tub­ing Plus offers pre­cise mate­r­i­al analy­sis using X‑ray flu­o­res­cence analy­sis (XRF) to deter­mine the chem­i­cal com­po­si­tion of materials. Our trained and expe­ri­enced teams inter­pret the measurement results pre­cise­ly, pre­vent cost­ly errors and ensure the cor­rect materials are used in your machines and sys­tems — quick­ly, non-destruc­tive­ly and with­out the need for cus­tomised calibration.
  • Con­tract tube drawing
    With ETHEN Tub­ing Plus, we also offer our tube draw­ing ser­vices for mate­r­i­al pro­vid­ed by the cus­tomer, where­by the pro­tec­tion of knowl­edge about materials and special alloys is guar­an­teed by con­fi­den­tial­i­ty agree­ments and oth­er arrangements.

Our ETHEN Tub­ing Plus service for capillary and precision tubes is aimed at every indus­try. Be it the chem­i­cal indus­try or ener­gy and nuclear tech­nol­o­gy. We are hap­py to help you with our expertise.

The best materials for your appli­ca­tion area

The best materials for your appli­ca­tion area

At ETHEN ROHRE, we tack­le every chal­lenge and devel­op high-quality tubes for you that meet the standards of your indus­try. This is why we only use the best materials for our capillary and precision tubes: tita­ni­um, nick­el, stainless steel and high-performance nick­el alloys.

Expert advice

From appa­ra­tus and equip­ment engi­neer­ing to the science sec­tor, we offer expert advice on select­ing the right mate­r­i­al for your capillary and precision tubes. We always make sure that the select­ed mate­r­i­al can with­stand the con­di­tions of your area of appli­ca­tion and that not a mil­lime­tre is too much or too little.

If the materials tita­ni­um or nick­el do not meet your require­ments, we will be hap­py to man­u­fac­ture your capillary and precision tubes from high-performance materials with high­er-quality alloys and special materials. Just get in touch with us.

Your require­ments, our challenges

Our expe­ri­enced team is ready to work with you to devel­op the ide­al solu­tions for your spe­cif­ic require­ments. Whether it’s high tem­per­a­tures, aggres­sive chem­i­cals or pre­cise dimensional require­ments, we have the right materials and exper­tise to exceed your expectations.

What­ev­er your indus­try, if you are look­ing for the high­est quality capillary and precision tub­ing, ETHEN ROHRE is the right place for you.

Get in touch with us

Despite the tense sit­u­a­tion on the raw materials mar­kets, major uncer­tain­ties in glob­al sup­ply chains and deliv­ery delays, we proac­tive­ly sup­port you and find solu­tions to at least par­tial­ly cov­er short-term require­ments. Con­tact us on +49 241 900 716–0 – we are here for you.

A suc­cess­ful year draws to an end

Christ­mas greet­ing and review of a great year

The year 2023 brought a lot of enjoy­able projects for us.

In May, we were officially award­ed Ger­man Trade Ori­gin by the Aachen Cham­ber of Indus­try and Com­merce. This is the result of our ded­i­cat­ed efforts to car­ry out the pro­cess­ing and pro­duc­tion of our tubes in our own factory.

In addi­tion, we con­tin­ue unchanged in our efforts to make a small con­tri­bu­tion to a more eco-friend­ly world. We have expand­ed our pho­to­volta­ic mod­ules on the roof of our hall, achiev­ing an impres­sive out­put of 40 kWp. We are already plan­ning the next expan­sion stage to reduce even more emis­sions and thus help the world a lit­tle more. Every step, no mat­ter how small, counts in the end.

None of this would have been pos­si­ble with­out your valu­able support.
You are an inte­gral part of our suc­cess, so we would like to take this oppor­tu­ni­ty to express our sin­cere grat­i­tude for your sig­nif­i­cant role in our suc­cess story.

Final­ly, it only remains for us to wish you a Mer­ry Christ­mas and a suc­cess­ful start to the New Year.

Your team from ETHEN ROHRE

ETHEN ROHRE is your per­son­al assistant

We at ETHEN ROHRE val­ue you as a cus­tomer and your trust is what dri­ves us to improve every day. That is why we would like to assure you today that we will con­tin­ue to work pas­sion­ate­ly to offer you the best service.

You as a cus­tomer are unique to us and we val­ue the oppor­tu­ni­ty to get to know you per­son­al­ly. Our team is always avail­able to respond to your indi­vid­ual require­ments and offer cus­tomised solutions.

We know that time is of the essence in your indus­try. That’s why we have opti­mised our com­mu­ni­ca­tion chan­nels to ensure that you can reach us eas­i­ly at any time. Your con­cerns are important to us and we are here to lis­ten to you.

Our process­es are designed to fulfil your orders as effi­cient­ly as pos­si­ble. Fast deliv­er­ies and smooth pro­cess­ing are a mat­ter of course for us.

With us, you don’t just have one con­tact per­son — you have a per­son­al assis­tant. Some­one who takes care of your con­cerns, answers your ques­tions and ensures that your require­ments are always at the cen­tre of attention.

We would like to thank you for giv­ing us the oppor­tu­ni­ty to sup­port you in your projects.

Made in Germany … More than just a phrase

When we talk about “Made in Germany”, we are not just talk­ing about the last step. We devel­op, draw, test, store and deliv­er in and from Germany. Made in Germany, after all.

This has also been decid­ed by the Cham­ber of Indus­try and Com­merce: By machin­ing and manufacturing in our own plant in Aachen, we have now been officially award­ed a Ger­man ori­gin in terms of trade policy.

This means that ETHEN ROHRE is your con­tact when it comes to high-quality capillary and precision tubes: from 0.7 mm to 19.5 mm diameters and a wide vari­ety of materials for a wide range of industries.