Qua­li­ty management

We never com­pro­mi­se on qua­li­ty. Our qua­li­ty manage­ment has been firm­ly ancho­red in our cor­po­ra­te phi­lo­so­phy for decades.


Tes­ted quality

All of the pro­ducts we manu­fac­tu­re are sub­ject to the same very high qua­li­ty stan­dards, which are reflec­ted in, among other things, our exten­si­ve ran­ge of cer­ti­fi­ca­ti­ons. A strong focus on qua­li­ty is the cor­ner­stone of our ent­i­re cor­po­ra­te phi­lo­so­phy and under­pins every move we make. Qua­li­ty has a tra­di­ti­on and a future with us. We are always working to beco­me even bet­ter and even more sus­tainab­le. While main­tai­ning our strengths, which we have alrea­dy demons­tra­ted so often, we go along with and help deve­lop pro­gress fur­ther. We are always hap­py to ans­wer our cus­to­mers’ ques­ti­ons about our qua­li­ty manage­ment. The­re is no issue more important to us than quality.

Qua­li­ty assuran­ce — test procedures

We are experts in non-dest­ruc­ti­ve and pre­cise mea­su­re­ment technology.


3D mea­su­re­ment

Always accu­rate­ly tes­ted. In addi­ti­on to the use of con­ven­tio­nal mea­su­re­ment tech­no­lo­gy, we also app­ly pro­ce­du­res in the field of 3D mea­su­re­ment tech­no­lo­gy to ensu­re qua­li­ty at the hig­hest level. For examp­le, we use a mobi­le Faro mea­su­ring arm for qua­li­ty con­trol. Detail­ed inspec­tion takes place both in the mea­su­ring room and on site. All mea­su­re­ment results are log­ged by inter­nal and exter­nal test assignments.

Non-dest­ruc­ti­ve mate­ri­als tes­ting (NDT)

We have a knack for non-dest­ruc­ti­ve mate­ri­al tes­ting. We test both sta­tio­na­ry and mobi­le. Our main tes­ting pro­ce­du­res include:

  • Radio­gra­phic tes­ting / X‑ray tes­ting (RT)
  • Ultra­so­nic tes­ting (UT)
  • Magne­tic par­ti­cle inspec­tion (MT)
  • Dye pene­trant inspec­tion (PT)
  • Visu­al inspec­tion (VT)
  • Wall thic­kness measurements
  • Vacu­um leak detection

“In order to be able to ensu­re the hig­hest level of qua­li­ty and per­for­mance for both our­sel­ves and our cus­to­mers, we are con­ti­nuous­ly working on sus­tainab­ly impro­ving our pro­ducts and processes.”


The cer­ti­fi­ca­tes that repre­sent our qua­li­ty and the high inter­na­tio­nal stan­dard wit­hin the Werk­stät­ten Group are clear­ly lis­ted here:

  • Qua­li­ty manage­ment sys­tem accord­ing to DIN EN ISO 9001:2015
  • Cer­ti­fied inter­nal pro­duc­tion con­trol accord­ing to Pres­su­re Equip­ment Direc­ti­ve 2014/68/EU
  • Cer­ti­fied manu­fac­tu­rer of pres­su­re ves­sels accord­ing to AD 2000 data sheet HP0 — modu­le H/H1
  • Cer­ti­fied wel­ding com­pa­ny of pres­su­re ves­sels accord­ing to DIN EN ISO 3834–2
  • Manu­fac­tu­re Licen­se of Spe­cial Equip­ment PR Chi­na for field 1. Pres­su­re Ves­sels D1, D2 2. Orga­nic Flu­id Boilers
  • Cer­ti­fied wel­ding com­pa­ny of steel struc­tures accord­ing to EN 1090–2, EXC3
  • Cer­ti­fied fac­to­ry pro­duc­tion con­trol for buil­ding pro­ducts accord­ing to EN 13084–7
  • ASME Boi­ler and Pres­su­re Ves­sel Code
  • ASME U Designator
  • ASME R Designator
  • ASME S Designator
  • Cer­ti­fied spe­cia­list com­pa­ny accord­ing to the Water Resour­ces Act (WHG)
  • SCC**/SCP cer­ti­fied safe­ty manage­ment sys­tem for tech­ni­cal ser­vice pro­vi­ders and per­son­nel ser­vice providers
  • Cer­ti­fied occup­a­tio­nal health and safe­ty manage­ment sys­tem accord­ing to OHS­AS 18001
  • Cer­ti­fied envi­ron­men­tal manage­ment sys­tem accord­ing to DIN EN ISO 14001 — Cer­ti­fied ener­gy manage­ment sys­tem accord­ing to DIN EN ISO 50001
  • RAL Qua­li­ty Mark for “Struc­tu­ral Steelwork”
  • Cer­ti­fied manu­fac­tu­rer of boi­lers for solid fuels accord­ing to DIN EN 303–5


Die Zer­ti­fi­ka­te, die inner­halb der Werk­stät­ten Group für unse­re Qua­li­tät und den hohen inter­na­tio­na­len Stan­dard spre­chen, haben wir hier über­sicht­lich aufgeführt:

  • Qua­li­täts­ma­nage­ment­sys­tem nach DIN EN ISO 9001:2015
  • Zer­ti­fi­zier­te inter­ne Fer­ti­gungs­kon­trol­le nach Druck­ge­rä­te­richt­li­nie 2014/68/EU
  • Zer­ti­fi­zier­ter Her­stel­ler von Druck­be­häl­tern nach AD 2000-Merk­blatt HP0 – Modul H/H1
  • Zer­ti­fi­zier­ter Schweiß­be­trieb von Druck­be­häl­tern nach DIN EN ISO 3834–2
  • Manu­fac­tu­re Licen­se of Spe­cial Equip­ment PR Chi­na für die Berei­che 1. Pres­su­re Ves­sels D1, D2 2. Orga­nic Flu­id Boilers
  • Zer­ti­fi­zier­ter Schweiß­be­trieb von Stahl­trag­wer­ken nach EN 1090–2, EXC3
  • Zer­ti­fi­zier­te werks­ei­ge­ne Pro­duk­ti­ons­kon­trol­le für Bau­pro­duk­te nach EN 13084–7
    ASME Boi­ler and Pres­su­re Ves­sel Code
    ASME U ‑Desi­gna­tor
    ASME R‑Designator
    ASME S‑Designator
  • Zer­ti­fi­zier­ter Fach­be­trieb nach Was­ser­haus­halts­ge­setz (WHG)
  • SCC**/SCP zer­ti­fi­zier­tes Sicher­heits­ma­nage­ment­sys­tem für tech­ni­sche Dienst­leis­ter und Personaldienstleister
  • Zer­ti­fi­zier­tes Arbeits­schutz­ma­nage­ment­sys­tem nach OHS­AS 18001
  • Zer­ti­fi­zier­tes Umwelt­ma­nage­ment­sys­tem nach DIN EN ISO 14001 — Zer­ti­fi­zier­tes Ener­gie­ma­nage­ment­sys­tem nach DIN EN ISO 50001
  • RAL-Güte­zei­chen für „Kon­struk­ti­ver Stahlbau“
  • Zer­ti­fi­zier­ter Her­stel­ler von Heiz­kes­seln für fes­te Brenn­stof­fe nach DIN EN 303–5

Con­ta­ct persons

Ralf Kwiatkowski

Ralf Kwiat­kow­ski

Head of Qua­li­ty Manage­ment, Sales Clea­ning Systems

+49 (0) 5921 / 8820 — 89

Rainer Faste

Rai­ner Faste

Ope­ra­ti­ons Management

+49 (0) 5921 / 8076 — 51