
Engineering, process control technology, switchgear construction and lightning protection from Dortmund for energy and industry.

Ingenieurbüro Fehringer GmbH
DortmundNew on Amplifa
About Ingenieurbüro Fehringer
Ingenieurbüro Fehringer GmbH is an engineering service provider headquartered in Dortmund, specialized in process control technology, automation systems, measurement and control technology as well as lightning and surge protection. Its service portfolio includes low-voltage switchgear and control cabinet construction, software programming (including Siemens S7, WinCC, PCS7/CEMAT, Allen-Bradley, Pilz), CAD design with EPLAN and AutoCAD, project management, commissioning and training. The company modernizes compressor stations, natural gas storage/caverns and press lines and is active in electromobility, for example in the commissioning of charging parks for EnBW. Customers come from energy supply, gas plants, the automotive industry, cement and lime, power plants, substations and tank farms, including E.ON, ABB, EnBW, RheinEnergie and Ford. Since 2020, a 3D printer (Raise3D N2, build volume 28.373 cm³) has complemented the portfolio. As of 01.06.2025, CFT GmbH (Marl) takes over the personnel and competencies of Ingenieurbüro Fehringer GmbH.
- Site
- Dortmund
- Processes
- Process control technology / process control systems (SIMATIC PCS7 / CEMAT), Machine automation, Design of sensors and measuring instruments, Design of analytical instruments, Hardware- and software-based controllers / model-based control systems, System integration and migration, Measurement and control technology, Loop checking, cold and hot commissioning, training, documentation, maintenance
- Materials
- Process control system SIMATIC PCS7 / CEMAT, PLC programming Siemens S7 / WinCC, 3D printing (Raise3D N2), Lightning and surge protection according to DIN EN 62305, Networking via OTN (Optical Transport Network)
- Certificates
- Factory testing according to DIN/VDE, SCC qualification of employees, ISO 9001
- Founded
- 1994
- Industries
- Energy supply, Gas energy plants (compressor stations, natural gas storage/caverns), Automotive industry, Electromobility, Cement and lime, Power plants and industrial plants
- 01
Engineering and feasibility studies
- 02
CAD/CAE design and switchgear planning
- 03
Software programming
- 04
Switchgear and control cabinet construction
- 05
Electrical installation
- 06
Commissioning, loop checking and training
Processes and Technologies
Process control system SIMATIC PCS7 / CEMAT
Used for process control systems in the cement and lime industry and other process plants.
PLC programming Siemens S7 / WinCC
Software for automated industrial plants across various disciplines.
3D printing (Raise3D N2)
Production of models and parts with precision down to 10 Micron in a build volume of 28.373 cm³.
Lightning and surge protection according to DIN EN 62305
Risk analysis, planning, testing and maintenance for industrial plants, tank farms, substations and local network distribution boards in Germany and Europe.
Networking via OTN (Optical Transport Network)
Natural gas networking and data communication for energy plants.
Locations

Dortmund
DEHeadquarters, engineering and switchgear construction
- Raise3D N2 3D printer
Services and Systems


Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Process control technology / process control systems (SIMATIC PCS7 / CEMAT)Engineering | – | – | – | – | – |
| Machine automationEngineering | – | – | – | – | – |
| Design of sensors and measuring instrumentsEngineering | – | – | – | – | – |
| Design of analytical instrumentsEngineering | – | – | – | – | – |
| Hardware- and software-based controllers / model-based control systemsEngineering | – | – | – | – | – |
| System integration and migrationEngineering | – | – | – | – | – |
| Measurement and control technologyEngineering | – | – | – | – | – |
| Loop checking, cold and hot commissioning, training, documentation, maintenanceAssembly | – | – | – | – | – |
| Lightning and surge protection (engineering according to DIN EN 62305, risk analysis, testing,Engineering | – | – | – | – | – |
| Feasibility studies, technical specifications, switchgear planning (CAD/CAE), P&I diagrams,Engineering | – | – | – | – | – |
| SiGeKo & FaSi (occupational safety)Engineering | – | – | – | – | – |
| Specialist personnel: installation management, site management/supervision, commissioning,Engineering | – | – | – | – | – |
| Project management (project scheduling, time planning, cost estimation/control, documentationEngineering | – | – | – | – | – |
| Switchgear and control cabinet construction in the low-voltage range (distribution boards, terminalAssembly | – | – | – | – | – |
| Construction of PLC control systems (Siemens S7, Sinumerik, Klöckner Moeller, Pilz, Mitsubishi,Assembly | – | – | – | – | – |
| Modernization of existing plants / press lines / compressor stations / natural gas storageAssembly | – | – | – | – | – |
| Electrical installation and dismantling of machinery and plantsAssembly | – | – | – | – | – |
| Design and construction of cavity conservation systemsAssembly | – | – | – | – | – |
| Software programming (Simatic S7, WinCC, PCS7/CEMAT, Allen-Bradley, Sinumerik, Klöckner Moeller,Engineering | – | – | – | – | – |
| CAD & design (EPLAN, AUCOPLAN, WS-CAD, AutoCAD, single-line diagrams, cable routing withEngineering | – | – | – | – | – |
| Networking via OTN (Optical Transport Network)Engineering | – | – | – | – | – |
| Construction of solar filling stations (with E.ON and ABB)Assembly | – | – | – | – | – |
| Commissioning of charging parks / e-filling stations including status quo analysis and functionalAssembly | – | – | – | – | – |
| Charging stations for heavy industrial construction vehicles and eVTOL (air taxi)Assembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3D printer | Raise3D N2 | 1 | Build volume 28373 cm³, printing precision up to 10 Micron (0.01 mm) | – | Dortmund |
Additional services
Reference customers
Quality and Standards
Switchgear is manufactured according to DIN/VDE, customer specifications or factory standards, including factory testing. Employees receive SCC qualification for operational managers; the company is an IHK-certified training company.
| Evidence | Dortmund |
|---|---|
| Factory testing according to DIN/VDE | |
| SCC qualification of employees | |
| ISO 9001 |
History
- 1994
Foundation of Ingenieurbüro Fehringer in Dortmund.
- 2016
Entry into solar technology; construction of solar filling stations in cooperation with E.ON and ABB.
- 2019
25th anniversary with summer party and donation of 1,650 euros to Löwenstarke Kinderhilfe e.V.
- 2020
Investment in 3D printing technology (Raise3D N2, build volume 28.373 cm³, printing precision up to 10 Micron).
- 2022
New management under Sven Rösner; commissioning of charging parks for EnBW in the field of e-mobility.
- 2025
As of 01.06.2025, CFT GmbH (Marl) takes over the personnel and competencies of Ingenieurbüro Fehringer GmbH.