Skip to content
NEW: CREATE AN AI-ASSISTED TENDER IN 2 MINUTES — TRY IT FREE
Back to search

Injection and Die Casting Tools for 3D Form Parts from Plastic and Aluminum, from Design Model to Series Production

SI

Christian Karl Siebenwurst GmbH & Co. KG

Dietfurt · Zwickau · Rohr · Dillenburg · Munich · Ingolstadt · Querétaro (MX) · Greenville, SC (US) · Shanghai/Shenyang (CN) · Lomianki (PL)New on Amplifa

1897Founded
700Employees (Group, 2017)
85 Mio. €Revenue (2017)
415Employees at Dietfurt headquarters
9Locations on three continents

About Siebenwurst

Christian Karl Siebenwurst GmbH & Co. KG is a model and mold maker established since 1897, with its headquarters in Dietfurt in Upper Palatinate. The company produces injection molding, die casting, press, foaming, and sheet forming and stamping tools for 3D form parts made of plastic and aluminum, including complete solutions for special processes to manufacture large-format and complex components with a focus on lightweight solutions. The process chain covers design and model making (1:1 models from foam and clay, wind tunnel models, cubing), CAD design in ICEM and CATIA, product development, prototype construction, mold and tool making, and null to small series production in its in-house technical center on three injection molding machines with 1,100 t, 1,800 t, and 4,000 t clamping force. Mold sampling is carried out in its own technical center; erocut Funkenerosions GmbH in Rohr offers EDM subcontracting. As a system supplier for the automotive industry (including Daimler, BMW, VW, Audi, Porsche), aerospace, and consumer goods industry, Siebenwurst supports customers from the design model to series production and accompanies tools throughout their entire lifecycle with the Tool Doctors service model. In 2017, the group employed around 700 employees with revenues of €85 million, with locations in Europe, North America, and Asia.

Site
Dietfurt a. d. Altmühl
Processes
Injection Molding Tools (Mold Making), Press Tools (Mold Making), Die Casting Tools (Mold Making), Foaming Tools, Sheet Forming and Stamping Tools, Jigs and Gauges, Machine and Fixture Construction, Design and Model Making (1:1 Design Models, 1:10/1:4 Proportion Models, Wind Tunnel and Aero Models,
Materials
Plastic (3D Form Parts), Aluminum (3D Form Parts, Foundry Models, Cores), Steel (Tools for Mold Making, Forming Technology), Grey Cast Iron (Cores), Foam (Design Models), Clay (Design Models), Fiber Reinforced Plastics (FRP, e.g., FRP roof, FRP rear spoiler), Plastic
Certificates
DIN EN ISO 9001:2015, DIN EN ISO 50001:2018, DIN EN ISO 14001:2015, TISAX, ISO 9001, ISO 14001, ISO 50001
Founded
1897
Employees
700 (Group, 2017)
Industries
Automotive, Aerospace, Consumer Goods Industry, Forming Technology
  1. 01

    Design & Model Making

  2. 02

    Product Development (CAD/Simulation)

  3. 03

    Prototype Construction & Procurement

  4. 04

    Mold & Tool Making

  5. 05

    Sampling in In-House Technical Center

  6. 06

    Null to Small Series Production

  7. 07

    Project Support & Process Optimization

  8. 08

    Tool Doctors & Service (Repair, Maintenance)

Materials & Processes

KU

Plastic

Injection and foaming tools as well as series production of injection molded parts for Automotive, Aerospace, and Consumer Goods.

Al

Aluminum

Material for die casting tools, foundry models, cores, and 3D form parts in lightweight construction.

St

Steel

Tool steel for mold making, sheet forming, and stamping tools, as well as structural parts of forming technology.

GG

Grey Cast Iron

Historically the first cores made of grey cast iron for casting aluminum parts.

Schaum/Clay

Foam and Clay

Materials for 1:1 to 1:10 scale design models, wind tunnel models, and data control models.

CFK

Fiber Reinforced Plastics (FRP)

Used, among others, for FRP roofs and rear spoilers in lightweight construction.

Locations

Dietfurt

DE

Headquarters: Model Making, Mold Making, Production, Technical Center

Lot size
Prototype to Small Series
Materials
Plastic, Aluminum, Steel
  • 1,100 t Injection Molding Machine
  • 1,800 t Injection Molding Machine
  • 4,000 t Injection Molding Machine
  • Milling Machines
  • Copy Milling Machines

Zwickau

DE

Siebenwurst Tool Making GmbH: Forming Technology

Materials
Steel

Rohr

DE

erocut Funkenerosions GmbH: EDM, Subcontracting

Materials
Steel
  • Electrical Discharge Machining Systems

Dillenburg

DE

Siebenwurst Consulting & Services GmbH: Project Management, Consulting

München

DE

Consulting & Services / SOLID solutions in design GmbH: Product Development

Querétaro

MX

Tool and Mold Making, Tool Doctors

Greenville, South Carolina

US

Siebenwurst US Inc.: Production

Shanghai/Shenyang

CN

Service Companies: Maintenance, Repair

Lomianki

PL

CAD/CAM SOLUTION: Tool Making Forming Technology

Materials
Steel

Industries

AutomotiveAerospaceConsumer Goods IndustryForming Technology

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Injection Molding Tools (Mold Making)Tool Making––––Plastic
Press Tools (Mold Making)Tool Making––––Plastic
Die Casting Tools (Mold Making)Tool Making––––Aluminum
Foaming ToolsTool Making–––––
Sheet Forming and Stamping ToolsTool Making––––Steel
Jigs and GaugesTool Making–––––
Machine and Fixture ConstructionTool Making–––––
Design and Model Making (1:1 Design Models, 1:10/1:4 Proportion Models, Wind Tunnel and Aero Models,Engineering––––Foam, Clay
CAD Modelling (ICEM, CATIA) / 3D CAD Tool ConstructionEngineering–––––
Null to Small Series Production in In-House Technical CenterPlastic–––Nullserie – KleinseriePlastic, Series Materials
Injection Molding of Series Parts (Series Production of Injection Molded Parts)Plastic––––Plastic
Die Casting of Series Parts (Series Production of Die Cast Parts)Casting––––Aluminum
EDM / Electrical Discharge Machining (Subcontracting)Machining––––Steel
Tool and Mold Service (Tool Doctors: Repair, Maintenance, Upkeep,Surface–––––
Prototype Construction & ProcurementEngineering–––––
Product Development (Development of Exterior and Interior Modules, Tooling andEngineering–––––

3 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
Injection Molding Machine–1––Dietfurt (Technical Center)
Injection Molding Machine–1––Dietfurt (Technical Center)
Injection Molding Machine–1––Dietfurt (Technical Center)

Additional services

Design & Model Making (CAD in ICEM/CATIA, 1:1 Design Models, Wind Tunnel Models, Cubing)Product DevelopmentPrototype Construction & ProcurementMold & Tool Making (Injection Molding, Die Casting, Press, Foaming, Sheet Forming, and StampingSmall Series Production (Injection Molding Machines 1,100 t, 1,800 t, 4,000 t)Project Support & Process OptimizationTool Doctors & Service (Commissioning, Repair, Maintenance, Laser Welding, Training)EDM/Electrical Discharge Machining (Subcontracting)Consulting & Project Management

Reference customers

Daimler/Mercedes-BenzBMWVolkswagenAudiPorscheOpelPolytecAISSMPYanfengIACFaureciaGrammerReydelGrupo AntolinMubea Carbo TechHBPOMagna DecomaGeorg FischerNifcoKTWAKTEugen WexlerBoltaWeidplasKarl EtzelReinert Kunststofftechnik

Quality & Certification

Quality assurance is certified according to DIN EN ISO 9001:2015 and includes jigs and gauges manufactured in-house, sampling in the in-house technical center, and continuous project and quality management. TISAX confirms the Automotive standard for information security.

EvidenceDietfurt
ISO 9001
ISO 14001
ISO 50001
TISAX

History

  1. 1897

    Founded as a model maker in Nuremberg

  2. 1943

    Relocation of operations to Dietfurt after destruction of the Nuremberg factory

  3. 1948

    Siebenwurst becomes a training facility

  4. 1950

    First aluminum foundry models

  5. 1965

    First press molds

  6. 1970

    First injection molds

  7. 1991

    Founding of Siebenwurst Tool Making GmbH in Zwickau

  8. 1999

    First DIN certification

  9. 2005

    Introduction of the Tool Doctors service model

  10. 2010

    First location in Asia: Service company in Shanghai

  11. 2013

    Founding of Siebenwurst Consulting & Services GmbH

  12. 2014

    Locations in Querétaro (Mexico) and Shenyang (China), involvement in CAD/CAM SOLUTION (Poland)

  13. 2015

    Founding of Siebenwurst US Inc. in Greenville, South Carolina

  14. 2016

    Majority stake in SOLID Solutions in Design GmbH

  15. 2018

    Third 'Toolmaker of the Year' title at the Excellence in Production competition

Personalised demo

Ready to see Amplifa Marketplace in action?

From a structured request to the right manufacturing partner: AI-assisted matching, verified suppliers and transparent metrics — in one place for industrial companies across the DACH region.

Request a demo