We are specialized to Reduce all wasting effects along the PET-preform  production in order to save resources and avoiding pollution.
Therefore we…
  • reduce the use of energy
  • reduce the use of raw materials
  • reduce cycle-time
  • reduce costs
  • reduce acetaldehyde content
  • reduce scrap

Timeline of Innovation, Developments and Experience…


Multilayer Accumulator Extrusion Head for fuel tank production (EP0465889B1)


Multilayer profile extrusion with twin-screw Extruder


Development of ISBM systems single stage (WO 02/053350) with Fifo Accumulator for injection moulding (US5.814.358)


Establishing of SIG PET-Tec to distribute ECOMAX, an ISBM single stage system


Heading Netstals Application Department for PET-Preform Systems


Development of Calitec to gain up to 15% cycle time in the injection moulding process for standard prforms (EP2468474B1)


Development of Airfix to gain up to 20% cycle time in the injection moulding process for invers taper preforms (EP2463075B1)


Development of a compression moulding process for manufacturing of preforms (EP2252446B1)


Development of PreBlow, first world-wide significant approach to gain resin for PET – bottles (EP2445697 B1 and EP2522482 B1)


The Company CPS invents Mint-Tec® which outclasses PreBlow through a mechanical approach


The company CPS invents Mint-Tec® for ISBM Single Stage systems


The company CPS invents Neck-Lite® for further light weighting of PET containers


2017 Establishment of ReduPET to cooperate with CPS and support the market introduction of Mint-Tec® and Neck-Lite®


ReduPET is introducing a resource management program for preform production systems, including evaluation of existing systems, organizing of measures and carrying out training programs

The person behind

Stefan Bock

Stefan Bock

Owner of ReduPET
About Myself
Apprenticeship @ Mercedes Benz AG
Graduated Engineer (FH)
Executive Master of Business Administration FHO (EMBA)
Designer @ Bekum, Berlin for Heads and Extruders
R&D for Twin-Screw Profile Extrusion, Montréal, Canada
Head of Technical Center @ Krupp Kautex and SIG, Bonn, for ISBM Systems
Head of Application Dep. for PET-Systems @ Netstal Maschinen AG, CH
Established ReduPET Focussing on a Responsible use of Resources in the PET World
Why ReduPET
Why I chosed to establish ReduPET

With 15 years’ experience of blow moulding and 25 years’ experience of Preform Injection moulding, many production sites could be seen world-wide. Normally production sites are highly charged and the staff doesn’t possess deep knowledge about each production component and the relation of each other. In addition there is not much time left to optimize the production process deep in detail. This results mainly in mostly underestimated losses in terms of energy, efficiency (cycletime), raw material loss and even stability of quality.

ReduPET may evaluate with all its experience the production sites for preforms, as well if they are combined with blow moulding. This is a great opportunity to optimize production und the use of raw materials. In addition the staff might be specifically trained for its needs.




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