
Development and series production of plastic parts and assemblies made from thermoplastics and thermosets, silicone and PU foam
KNIPPING Kunststofftechnik GESSMANN GmbH
Germany · Hungary · MexicoNew on Amplifa
About KNIPPING Kunststofftechnik
KNIPPING Kunststofftechnik GESSMANN GmbH is a technology partner and system supplier for plastic components, supporting customers from concept through product development and prototyping to series production. The company manufactures individual parts and complex assemblies from thermoplastics and thermosets, also in combination with metal insert technology, as well as injection-molded silicone parts and PU foams. The range of services is complemented by in-house toolmaking, plastic welding and innovative assembly and testing technologies. Key industries are the automotive industry, e-mobility and PEM fuel cells; in the innovation field, KNIPPING develops balance-of-plant components, including for the cathode subsystem of fuel cells, as well as humidifier solutions. With around 975 employees at six sites in Germany, Hungary and Mexico, the company processes 12,000 tonnes of plastic annually and produces 1.4 billion plastic parts per year with revenue of 170 million euros.
- Site
- Germany
- Processes
- Injection molding (plastic), Silicone injection molding technologies, PU foaming, Plastic welding, Metal insert technology, Assembly (assembly of modules), Testing technologies, Toolmaking
- Materials
- Thermoplastics, Thermosets, Silicone, Polyurethane (PU foam)
- Employees
- 975
- Industries
- Automotive industry, E-mobility, Fuel cells (PEM)
- 01
Product development
- 02
Prototyping
- 03
Toolmaking
- 04
Injection molding (plastic and silicone)
- 05
PU foaming
- 06
Metal insert technology
- 07
Plastic welding
- 08
Assembly
- 09
Testing technologies
- 10
Series production
Materials and Processes
Thermoplastics
Base for injection-molded parts and assemblies, also with metal insert technology and plastic welding.
Thermosets
Processed by injection molding, among other things in combination with metal inserts.
Silicone
Silicone injection molding technologies for demanding components.
Polyurethane (PU foam)
PU foaming for insulation and structural components.
Sites
Germany
DESite
- Materials
- Thermoplastics, thermosets, silicone, PU
- Injection molding machines for plastic and silicone
- PU foaming technology
- Toolmaking
- Assembly and testing technologies
Hungary
HUSite
Mexico
MXSite
Products and Components


Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Injection molding (plastic)Plastics | – | – | – | – | Thermoplastics, Thermosets |
| Silicone injection molding technologiesPlastics | – | – | – | – | Silicone |
| PU foamingPlastics | – | – | – | – | Polyurethane (PU) |
| Plastic weldingJoining | – | – | – | – | Thermoplastics |
| Metal insert technologyJoining | – | – | – | – | Thermoplastics, Thermosets, Metal |
| Assembly (assembly of modules)Assembly | – | – | – | – | – |
| Testing technologiesTesting | – | – | – | – | – |
| ToolmakingEngineering | – | – | – | – | – |
| Product developmentEngineering | – | – | – | – | – |
| PrototypingEngineering | – | – | – | – | – |
Additional services