Manufacturing of plastic components by injection moulding – engineering, toolmaking, surface finishing and assembly from a single source.
SMi Steinbiß & Mittner Kunststofftechnik
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About SMi Kunststofftechnik
SMi Steinbiß & Mittner Kunststofftechnik is a plastics processor specialised in injection moulding with around 30 years of experience in the development and series production of plastic parts. The company processes nearly all thermoplastics, including polyamide-6, polysulfone and fibre-reinforced plastics, using processes such as 1K and multi-component injection moulding (rotary table and transfer technique, core-back process), insert technique as well as gas pressure techniques (GHD, GND, GID). The range of services includes plastics-compatible product development with rheological simulations, project management for injection moulding tools up to series maturity, toolmaking including the takeover and optimisation of existing tools, automated surface finishing such as painting and selective chrome plating, as well as assembly of complete modules. Customers come from automotive interior (including BMW, Lamborghini, Mercedes-Benz, VW, Rolls-Royce), defence technology (including Heckler & Koch, Dynamit Nobel) and medical technology (including Aesculap). Production is accompanied by quality assurance before, during and after production.
- Processes
- Injection moulding (thermoplastics), Multi-component injection moulding 2K/3K, Transfer technique with handling system, Rotary table technique / index rotary technique, Core-back process, Gas back-pressure technique (GHD), Gas counter-pressure process (GND), Gas internal pressure technique (GID, >300 bar gas pressure)
- Materials
- Thermoplastics (nearly all), Polyamide-6, Polysulfone, Fibre-reinforced plastics, Highly fibre-reinforced, impact-modified plastic, Aluminium, Metal inserts (threaded bushings, threaded rings, sheet metal parts)
- Industries
- Automotive, Defence technology, Medical technology, Automotive (interior), Individual plastic components for other industries
- 01
Engineering / plastics-compatible product development
- 02
Toolmaking (rheological calculations and simulations)
- 03
Injection moulding (1K, multi-component, insert technique, gas pressure
- 04
Surface finishing
- 05
Assembly of complete modules
- 06
Quality assurance
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Injection moulding (thermoplastics)Plastics | – | – | – | – | Thermoplastics, Polyamide-6, Polysulfone (PSU), Fibre-reinforced plastics |
| Multi-component injection moulding 2K/3KPlastics | – | – | – | – | Thermoplastics |
| Transfer technique with handling systemPlastics | – | – | – | – | various plastics/colour combinations |
| Rotary table technique / index rotary techniquePlastics | – | – | – | – | Thermoplastics |
| Core-back processPlastics | – | – | – | – | Thermoplastics |
| Gas back-pressure technique (GHD)Plastics | – | – | – | – | Thermoplastics |
| Gas counter-pressure process (GND)Plastics | – | – | – | – | Thermoplastics |
| Gas internal pressure technique (GID, >300 bar gas pressure)Plastics | – | – | – | – | Thermoplastics |
| Insert technique (overmoulding of metal parts, threaded bushings, insert parts)Plastics | – | – | – | – | Fibre-reinforced plastics, Polyamide, Aluminium |
| Toolmaking incl. rheological calculations and simulationsEngineering | – | – | – | – | – |
| Project management for injection moulding tools (development to series maturity)Engineering | – | – | – | – | – |
| Engineering / plastic component development with simulationsEngineering | – | – | – | – | – |
| Surface finishing (automated systems, painting, selective chrome plating)Surface | – | – | – | – | Plastics |
| Assembly of complete modulesAssembly | – | – | – | – | – |
| Quality assurance incl. optical measuring systemTesting | – | – | – | – | – |
| Takeover and optimisation of existing injection moulding toolsEngineering | – | – | – | – | – |
| Vacuum venting in injection mouldingPlastics | – | – | – | – | Thermoplastics |
| Cube mould technology (in toolmaking)Plastics | – | – | – | – | Thermoplastics |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection moulding machine with gas internal pressure system (incl. control) | – | – | – | – | – |
| Multi-component injection moulding machines with rotary table | – | – | – | – | – |
| Handling systems for transfer technique | – | – | – | – | – |
| Automated surface finishing systems | – | – | – | – | – |
| Optical measuring system | – | – | – | – | – |
Additional services
Reference customers
History
Build-up of around 30 years of know-how in the development and implementation of plastic parts for various well-known industrial customers