Siebenwurst company newsletter

Issue 01/2013
Newsletter Foto

Siebenwurst sharpens portfolio and processes

Dear Sir / Madam,

Many new things will be coming to Siebenwurst in 2013 – and not just in the field of technology. Our new paint shop in Dietfurt significantly facilitates the manufacturing and finishing of models. We have also established a new company to expand our range of services. And last but not least, we were also involved in the development of new ways to process semi-finished fibres as part of a joint project.

New painting plant for model making

Streamlined workflows and greater precision

New Siebenwurst painting plant

Our new paint shop with a second construction and assembly hall was recently completed after an eight-month building period at our Dietfurt site. Now Siebenwurst is able to paint on its own premises. This investment marks a major step forward for the model making division, and manufacturing processes are now almost entirely integrated.

Training began immediately after the Wolf painting and filling plant was commissioned. Employees then painted the first two data control models, which was very well received by the customer. The approx. 2,000 lux illumination of the paint shop facilitates prep work such as filling and finishing and also makes the final inspection much easier. A trench with a lifting platform, grille and exhaust system for wet grinding was set up slightly offset in front of the painting plant. A paint storage system with mixer was integrated next to the plant to keep distances to a minimum.

The model making division will soon have even more space at its disposal: Mould making is getting a new hall with an additional 1,300 m2 of production area. The hall located next to the paint shop has been used by three assembly groups until now and will be converted for use by the model making division without the need for any major construction measures. This will make it possible to separate the individual production areas in a way that is adapted to the material flow, give all assembly groups optimal access to the technical infrastructure, and ultimately improve the conditions for our multi-customer strategy.

Introducing Siebenwurst Consulting & Services

New company in the Siebenwurst Group

Siebenwurst Consulting & Services Siebenwurst Consulting & Services GmbH (SCS) was officially established on March 8, 2013. The company headquarters are in the central Hessian town of Dillenburg, Germany. One of the main focuses of the new company is to expand the range of the popular Siebenwurst Tool Doctors services.

The current SCS portfolio includes all services related to mould and toolmaking:

  • Project management
  • Recruitment of technical and management personnel in tool and mould making
  • Tool and mould purchasing in Europe and Asia and through cooperation partners in North and South America
  • Consulting, among other areas, in conceptual design, feasibility studies, review of existing engineering designs and tool and mould optimization
  • Tool Doctors inserts

Our new location in Central Hesse enables us to provide existing and new customers in this region even faster and better service. The two companies Christian Karl Siebenwurst GmbH & Co. KG and Siebenwurst Werkzeugbau GmbH are the majority shareholders; Christian Walter is the managing director.

12th International Model, Mould and Tool Making Congress

Siebenwurst factory tour part of programme

13th MF Congress E-mobility and lightweight construction are the key issues that will have a major impact on the global automotive industry in the future. The German Model and Mould Making Association is holding an international congress in Munich May 9th–12th, 2013 focused on these topics. Informative presentations and lectures will showcase the latest trends and technologies.

Company tours in and around Munich will once again be a part of the 12th International Model, Mould and Tool Making Congress and will be offered on Saturday, May 11. The Siebenwurst location in Dietfurt is among the companies opening its doors to visitors.

Congress details and programme available on the official website »

Injection moulding of CFRP components without the use of composite sheets

Successful research project for direct processing of semi-finished fibres

Manufacturing lightweight components on conventional injection moulding machines - this now is possible thanks to a new process technology that Siebenwurst helped develop as part of a joint project. What makes this technique for the direct processing of dry semi-finished fibres so interesting is that the carbon fibre reinforced polymer (CFRP) fibres are used as electric heating elements. This makes the use of pre impregnated semi-finished products (composite sheets) obsolete.

The main problem with direct injection moulding of scrim or fabric reinforced components is the relatively high viscosity of the thermoplastics. Unlike the processing of semi-finished products, impregnation of the individual filaments in the new processing technique takes place with the thermoplastic material in the injection mould. This is known as in-mould impregnation, or IMI. The process uses the carbon fibres as electrical resistance elements, which are conductively heated in the tool during processing. This saves both time and energy: The semi-finished fibres can be brought to the required temperature within a matter of seconds and kept at this temperature during processing. At the same time, heat is only generated where it is needed.

The Jülich Research Centre is the sponsor of this joint project funded by the Bavarian Ministry of Economics. The partners in this joint project with Siebenwurst are the thermoforming specialists HBW-Gubesch, the textile machinery manufacturer Liba, the Neue Materialien Fürth research institute and the Institute of Polymer Technology at the University of Erlangen-Nuremberg.

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Legal notice

Christian Karl Siebenwurst GmbH & Co. KG
Modellbau und Formenbau
Industriestrasse 31
92345 Dietfurt a. d. Altmühl

Limited partnership (Kommanditgesellschaft) in Dietfurt/Altmühl
Register court Nuremberg HRA no. 6934
General partner (Komplementär): Siebenwurst Verwaltungsgesellschaft mbH based in Dietfurt/Altmühl
Register court Nuremberg HRB no. 5583

VAT Reg. No. DE133226755
Managing Directors: Christian Siebenwurst, Roland Siebenwurst

Phone +49 8464 650-0 · Fax +49 8464 1280 · E-mail