
Design of injection moulding, multi-component, die casting and compression moulding tools as well as production-oriented plastic parts
LH Werkzeug-Konstruktion GmbH
Flachslanden (Middle Franconia)New on Amplifa
About us
LH Werkzeug-Konstruktion GmbH is an engineering service provider for tool and mould making based in Flachslanden in Middle Franconia. The team of specialists designs, on behalf of the plastics processing industry, mould makers and directly for companies: injection moulding tools, stack moulding tools, 2-5 component tools, die casting and compression moulding tools as well as production-oriented plastic parts. The range of services includes assembly injection moulding tools, multi-part injection moulding with integrated assembly in the tool, injection moulding embossing tools, overmoulding of films and metals, metal insert tools as well as Moldflow analyses with warpage calculation. All design work is carried out exclusively in 3D using the volume modeller VisiCAD. Customers include companies from the automotive, automotive electronics, electrical engineering, telecommunications, medical technology, cosmetics, household appliances, building services, toys, sports and consumer electronics industries.
- Site
- Flachslanden
- Processes
- Design of injection moulding tools, Design of multi-component tools (up to 4 components), Design of assembly injection moulding tools / multi-part injection moulding with integrated, Design of stack moulding tools/stack moulds, Design of injection moulding embossing tools, Design of die casting tools, Design of compression moulding tools, Production-oriented plastic part development (part development)
- Materials
- Plastics (various, processed by injection moulding), Plastics (various), VisiCAD (3D design), Moldflow analysis
- Founded
- 1994-04-01
- Industries
- Automotive, Automotive electronics, Electrical engineering, Telecommunications, Medical technology, Cosmetics
- 01
Enquiry and project definition
- 02
Part development / production-oriented design
- 03
Moldflow analysis with warpage calculation
- 04
Tool design in 3D (VisiCAD)
Materials and Processes
Plastics (various)
Plastics processed by injection moulding, for which the corresponding tools are designed with up to 4 components.
VisiCAD (3D design)
Since 2001, all tools have been designed exclusively as 3D volume models.
Moldflow analysis
Simulation-based analysis with warpage calculation to validate the production-oriented part design.
Locations
Flachslanden
DEHead office / office, design office
Components


Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Design of injection moulding toolsEngineering | – | – | – | – | Plastic |
| Design of multi-component tools (up to 4 components)Engineering | – | – | – | – | Plastic |
| Design of assembly injection moulding tools / multi-part injection moulding with integratedEngineering | – | – | – | – | Plastic |
| Design of stack moulding tools/stack mouldsEngineering | – | – | – | – | Plastic |
| Design of injection moulding embossing toolsEngineering | – | – | – | – | Plastic |
| Design of die casting toolsEngineering | – | – | – | – | – |
| Design of compression moulding toolsEngineering | – | – | – | – | – |
| Production-oriented plastic part development (part development)Engineering | – | – | – | – | Plastic |
| Film overmoulding (tool design)Engineering | – | – | – | – | Plastic |
| Metal overmoulding / metal insert tools (design)Engineering | – | – | – | – | Metal, Plastic |
| Moldflow analyses with warpage calculationEngineering | – | – | – | – | Plastic |
| Design of tools for multi-colour/multi-component processesEngineering | – | – | – | – | Plastic |
| Design of tools for injection-assembly processes / assembly processesEngineering | – | – | – | – | Plastic |
| Design of tools with core back retraction technology (core back)Engineering | – | – | – | – | Plastic |
| Design of tools with transfer technologyEngineering | – | – | – | – | Plastic |
| Design of rotary technology tools (rotating table / index plate)Engineering | – | – | – | – | Plastic |
| Design of 4-component assembly injection moulding toolsEngineering | – | – | – | – | Plastic |
| Design of gas-assisted injection moulding toolsEngineering | – | – | – | – | Plastic |
| Design of encapsulation/overmoulding toolsEngineering | – | – | – | – | Plastic |
| 2-5 component tools (design)Engineering | – | – | – | – | Plastic |
Additional services
Reference customers
History
- 1994
Founded on 1 April by Erich Lang (designer and master mould maker) and Georg Helm (mechanical engineering technician); work with AutoCAD (2D) and the 3D surface modeller ICEM DDN.
- 1995
Move into the current offices in Flachslanden in November.
- 1996
Foundation of LH-Konstruktion GmbH Werkzeug- und Teileentwicklung.
- 1997
Team strengthened by a mechanical engineering technician.
- 2001
Switch of design work to the 3D volume modeller VisiCAD; since then all tools have been designed exclusively in 3D.
- 2002
End of CAM program creation with Powermill.
- 2021
Transfer of the business area to LH Werkzeug-Konstruktion GmbH; since 01.01.2021 Georg Helm has headed the company.