Basic Principles

A good net­work with sup­pli­ers is essen­tial for our com­pa­ny. We devel­op a good long-term part­ner­ship with estab­lished partners.

The pur­chase depart­ment of STIWA Group is respon­si­ble for com­mu­ni­ca­tion with sup­pli­ers and for pur­chas­ing prod­ucts and ser­vices. Our goal is high per­for­mance for a fair price.

For STIWA, the val­ues of entre­pre­neur­ial think­ing and act­ing through inno­va­tion, qual­i­ty, part­ner­ship and sus­tain­abil­i­ty are in the fore­ground. There­fore we fos­ter close rela­tion­ships to our sup­pli­ers, who are open to join fur­ther development.

Doc­u­ments for suppliers



Our tar­get for qual­i­ty is zero defects. Our sup­pli­ers fol­low qual­i­ty man­age­ment stan­dards like ISO 9001:2008. Qual­i­ty and logis­ti­cal per­for­mance are mea­sured by a stan­dard­ized sys­tem. If rel­e­vant, we active­ly sup­port our sup­pli­ers to improve their com­pe­ten­cies by audits.


Purchased products of mechanical engineering:


  • Dos­ing technology
  • Pack­ag­ing
  • Sen­sor system
  • Elec­tric heat­ing technology
  • Radi­al wob­ble riveting
  • Image pro­cess­ing
  • Label­ing technology
  • Robot
  • Laser tech­nol­o­gy
  • Mea­sur­ing systems
  • Ultra­son­ics
  • Impulse weld­ing

Mechan­i­cal sys­tem and pneumatics

  • Pneu­mat­ics
  • Lin­ear technology
  • Gear
  • Bear­ing
  • Shock absorber
  • Grip­per / Han­dling components
  • Con­vey­or systems
  • Toothed belts, trans­port belts
  • Mechan­i­cal C parts

Electrics and control

  • Dri­ve technology
  • Actu­a­tors and sen­sor systems
  • Con­trol technology

Purchased products of supplier production:

Steel and steel pipes

  • Coils
  • Steel pipes (weld­ed and/or drawn)
  • Round steel

Orig­i­nal and formed met­al parts

  • Fric­tion bearings
  • Cold extrud­ed parts and cold formed parts
  • Alu­minum die-cast parts
  • Stamp­ing and bend­ing parts/springs
  • Pre­ci­sion cut parts

Extend­ed workbench

  • Sur­face treat­ment (gal­van­ic, heat treat­ment of steel, carbon-nitriding)
  • Machined parts

Seal mate­ri­als & plastics

  • Plas­tic injec­tion-mold­ed part
  • Seals acc. to auto­mo­tive standard
  • Syn­thet­ic granules


  • Stan­dard elements
  • Steel com­po­nents
  • Sur­face treatment


  • Assem­bly groups
  • Stan­dard parts
  • Aux­il­iary & oper­at­ing mate­ri­als (oils, greas­es, etc.)
  • Pack­ag­ing
  • etc.


Franz Exel
Pur­chas­ing Auto­mo­tive Division


Thomas Sch­ern­thaner
Pur­chas­ing Automa­tion Machinery