Development and manufacturing of network, sensor and interface technology including EMS services in Wuppertal
Wiesemann & Theis GmbH
Wuppertal (Porschestr. 12, 42279)New on Amplifa
About W&T
Since 1979, Wiesemann & Theis GmbH (W&T) has developed and produced network, sensor and interface technology for industry, office and IT in Wuppertal. The product range includes web thermometers, Web-IO modules, CO2 measuring devices, edge computers and interfaces for networking, monitoring and automating data points. In addition to its own products, the company offers EMS services: SMD assembly of circuit boards using stencil-free jet printing technology (MYCRONIC, max. panel size 44 x 35 cm, min. component size 0201), manual assembly of THT components, wiring and cable assembly as well as soldering in a vapor phase oven. Every assembly passes through a test field with optical inspection and electrical individual device testing. In addition, W&T provides hardware and firmware development, PCB design, an IoT service with programming for automation and visualization, and fulfillment with warehousing, picking and shipping. Customers come from industry/automation, electrical and building technology, retail, office/IT as well as schools, daycare centers and agriculture; sales are handled via 35 representatives worldwide.
- Site
- Wuppertal
- Processes
- SMD assembly of circuit boards (jet printing, stencil-free), Manual assembly of electronic assemblies (THT components, wiring, cable assembly), Individual device testing (optical inspection, electrical testing, individual test systems), Hardware development (circuit design, schematic development, PCB design, prototyping,, Firmware development, IoT service (consulting, development, programming: automation, visualization,, Fulfillment (warehousing, picking, packaging, parcel shipping), Material procurement and support from prototyping to series production
- Materials
- Solder paste, SMD assembly with jet printing (MYCRONIC), Manual assembly, Vapor phase soldering, PCB design & firmware development, IoT service / software development
- Certificates
- ISO 9001, Individual test systems / individual device testing, 5-year warranty (own products)
- Founded
- 1979
- Industries
- Industry/Automation, Electrical and building technology, Retail and leisure (access control, people counting), Office/Business, IT/Network technology, Schools/Daycare centers/Senior homes
- 01
Hardware development (circuit design, PCB design, firmware)
- 02
Material procurement
- 03
SMD assembly (jet printing)
- 04
Manual assembly / cable assembly
- 05
Soldering in vapor phase oven
- 06
Test field: optical and electrical individual device testing
- 07
Fulfillment: storage, picking, shipping
Materials & Processes
SMD assembly with jet printing (MYCRONIC)
Stencil-free printing of solder paste, panel size up to 44 x 35 cm, min. component size 0201.
Manual assembly
Precise execution of complex assembly orders including THT components, wiring and cable assembly.
Vapor phase soldering
Energy-efficient vapor phase oven for soldering assembled circuit boards.
PCB design & firmware development
From circuit design and board layout to series production including testing.
IoT service / software development
Consulting, development and programming for automation, visualization and system integration (Modbus, OPC UA, MQTT, REST, SNMP).
Locations
Wuppertal
DEHeadquarters, development, production, sales
- Lot size
- Prototypes to medium series
- Materials
- Solder paste, electronic components (SMD from 0201, THT)
- MYCRONIC SMD production system with jet printing technology
- Vapor phase oven
- Test field with individual test systems
- Finished goods and raw materials warehouse
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| SMD assembly of circuit boards (jet printing, stencil-free)Assembly | – | 44 cm (max. panel size) × 35 cm (max. panel size) | – | Prototypes – medium series | Solder paste |
| Manual assembly of electronic assemblies (THT components, wiring, cable assembly)Assembly | – | – | – | – | – |
| Individual device testing (optical inspection, electrical testing, individual test systems)Testing | – | – | – | – | – |
| Hardware development (circuit design, schematic development, PCB design, prototyping,Engineering | – | – | – | – | – |
| Firmware developmentEngineering | – | – | – | – | – |
| IoT service (consulting, development, programming: automation, visualization,Engineering | – | – | – | – | – |
| Fulfillment (warehousing, picking, packaging, parcel shipping)Assembly | – | – | – | – | – |
| Material procurement and support from prototyping to series productionEngineering | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| SMD production system with jet printing technology (stencil-free) | MYCRONIC | – | max. panel size 44 x 35 cm; min. component size 0201 | – | Wuppertal |
| Vapor phase oven | – | 1 | – | – | Wuppertal |
Additional services
Quality
Every circuit board is individually tested in the in-house test field according to the desired test criteria, including optical inspection, electrical testing and individualized test systems. Products are offered with documented standards compliance for office and industrial environments (e.g. interference immunity EN 61000-6-2).
| Evidence | Wuppertal |
|---|---|
| ISO 9001 | |
| Individual test systems / individual device testing | |
| 5-year warranty (own products) |
History
- 1979
Founded; developed from a tinkerer's basement to a market leader in network, sensor and interface technology
- 2024
Tobias Theis takes over management (January 2024)