Custom membrane switches, silicone keypads, capacitive input systems and ready-to-install HMI assemblies – from prototype to series production
N&H Technology GmbH
Willich (headquarters, test laboratory, logistics warehouse) · Shanghai (branch office) · Krefeld (founding location)New on Amplifa
About N&H Technology
Since 2001, N&H Technology GmbH has been developing and manufacturing custom HMI components, electromechanical assemblies and molded parts for industrial applications. The portfolio includes membrane switches, silicone keypads, capacitive input systems, plastic housings, cable assemblies, magnetic connectors and complete control units. As a full-service partner, the company supports projects from technical concept development and material selection through 3D-CAD design with production-ready engineering (DFM) and 3D-printed prototypes to series production and assembly of ready-to-install HMI assemblies with displays, touch systems, carrier plates and housings. The materials used include PET, PC, TPU and silicone. Manufacturing takes place at the company's own production facility at SNT Electronics in China with manual, semi-automated and automated equipment, while engineering, project management and quality assurance are based in Germany. The headquarters in Willich offers its own test and inspection laboratory as well as logistics and warehousing capacity. Customers come from industrial automation, medical technology, device manufacturing, metrology and control engineering, the automotive industry, telecommunications and building automation; more than 5,000 customer projects have been realized.
- Site
- Willich
- Processes
- Manufacture of custom membrane switches, HMI input systems / ready-to-install HMI assemblies incl. integration of displays, touch systems,, Engineering: technical concept development, material selection, design, 3D-CAD design, DFM,, 3D-printed prototypes (functional samples), Development and manufacture of silicone keypads, Test laboratory: electrical testing (contact resistance, actuation force, current-carrying capacity,, Capacitive input systems / capacitive keypads, Manufacture of plastic housings, cable assemblies, magnetic connectors and
- Materials
- PET, PC, TPU, Silicone (silicone keypads, silicone overlay), Polyethylene terephthalate (PET), Polycarbonate (PC), Thermoplastic polyurethane (TPU), Silicone
- Certificates
- ISO 9001, ISO 14001, IATF 16949, ISO 13485
- Founded
- 2001
- Employees
- Over 50
- Industries
- Industrial automation / mechanical engineering, Medical technology, Device manufacturing & OEM, Automotive industry, Telecommunications, Building automation
- 01
Technical consulting
- 02
Engineering & design (3D-CAD, DFM)
- 03
Prototyping (3D printing, functional samples)
- 04
In-house manufacturing at SNT Electronics
- 05
Assembly & integration
- 06
Test laboratory & quality assurance
- 07
Logistics, buffer warehouse, worldwide shipping
Materials & Processes
Polyethylene terephthalate (PET)
Standard film material for decorative overlays and circuit construction of membrane switches.
Polycarbonate (PC)
For robust, durable switch overlays in industrial applications.
Thermoplastic polyurethane (TPU)
For flexible, abrasion-resistant switch overlays.
Silicone
Development and manufacture of silicone keypads and silicone overlays for tactile operating solutions.
3D printing
Functional samples and prototypes for early validation of design, haptics and function.
Capacitive input systems
Capacitive keypads as an alternative to mechanical switch films.
Locations
Willich
DEHeadquarters with test and inspection laboratory, engineering, quality assurance and logistics warehouse
- Test laboratory: electrical, mechanical, climatic and optical testing equipment
Shanghai
CNBranch office for engineering and quality assurance; in-house manufacturing at SNT Electronics
- Manual, semi-automated and automated production equipment for membrane switches
Krefeld
DEFounding location
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of custom membrane switchesAssembly | – | – | – | Prototype – ongoing series supply (small and | PET, PC, TPU |
| HMI input systems / ready-to-install HMI assemblies incl. integration of displays, touch systems,Assembly | – | – | – | – | – |
| Engineering: technical concept development, material selection, design, 3D-CAD design, DFM,Engineering | – | – | – | – | – |
| 3D-printed prototypes (functional samples)Additive | – | – | – | – | – |
| Development and manufacture of silicone keypadsPlastics | – | – | – | – | Silicone |
| Test laboratory: electrical testing (contact resistance, actuation force, current-carrying capacity,Testing | – | – | – | – | – |
| Capacitive input systems / capacitive keypadsAssembly | – | – | – | – | – |
| Manufacture of plastic housings, cable assemblies, magnetic connectors andAssembly | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Manual, semi-automated and automated production equipment (machine fleet | – | – | – | – | SNT in-house manufacturing China |
| Test laboratory (electrical, mechanical, climatic and optical testing equipment) | – | – | – | – | Willich, Germany |
Additional services
Quality
The company's own test and inspection laboratory at the Willich site supports development, validation and quality assurance with electrical (contact resistance, actuation force, current-carrying capacity, cable testing), mechanical (actuation force, life-cycle, peel and adhesion strength testing), climatic and optical testing methods (microscopy, color measurement, material analysis). The manufacturing partners comply with international standards such as ISO 9001, ISO 14001, IATF 16949 and ISO 13485.
| Evidence | Willich |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| IATF 16949 | |
| ISO 13485 |
History
- 2001
Founded in Krefeld with a team of four employees.
- 2013
Opening of the branch office in Shanghai to support engineering and quality assurance.
- 2021
Expansion of logistics and warehousing capacity for further growth.
- 2023
Majority stake in SNT Electronics; in-house manufacturing of HMI solutions in China.
- 2026
Move to the new company headquarters in Willich with its own test laboratory and logistics warehouse; 25 years of HMI expertise, over 50 employees.