Development and manufacture of jigs, gauges and contract-manufactured metal parts
DKT Thielgen GmbH
66822 Lebach, SaarlandNew on Amplifa
About DKT
DKT Thielgen GmbH was founded in 1986 by Detlef Thielgen and is based in Lebach in the Saarland. The owner-managed company with around 40 employees develops and manufactures jigs and gauges for renowned automotive suppliers and other industrial sectors, including mechanical engineering and aviation. The range of services includes jig and fixture construction (including welding fixtures), gauge construction for individual parts, assemblies, castings and pipe welding assemblies, contract manufacturing as individual parts as well as small and medium series, assembly service, commissioning and spare parts service. Production takes place on a regularly modernized machine park with 5-axis CNC milling machines, a 7-axis turn-mill center, a CNC waterjet cutting system and a surface and profile grinding machine. Since 2025, additive manufacturing with fiber-reinforced plastic has also been available. Gauges can be measured up to approximately 4 meters in length. DKT is an internationally protected trademark and is certified to DIN EN ISO 9001.
- Site
- Lebach
- Processes
- 5-axis CNC milling, 7-axis turn-milling, CNC waterjet cutting (2D), Surface and profile grinding, Radial drilling, Metal band sawing (double miter band saw automatic machine), Additive manufacturing (3D printing with fiber reinforcement), Jig and fixture construction (including welding fixtures)
- Materials
- Metal, Aluminium, Plastic (3D printing with fiber reinforcement), Castings (as inspection objects for gauges), Metals, Plastic (fiber-reinforced), Castings
- Certificates
- DIN EN ISO 9001:2015, ISO 9001 (DIN EN ISO 9001:2015)
- Founded
- 1986
- Employees
- 40
- Industries
- Automotive suppliers, Mechanical engineering, Aerospace, General industry, general industry (including aviation, mechanical engineering)
- 01
Design (CAD, simulation, project management)
- 02
Production planning
- 03
Machining (milling, turning, grinding, sawing, drilling, waterjet cutting)
- 04
Additive manufacturing
- 05
Assembly/jig and fixture construction
- 06
3D measurement and measurement documentation
- 07
Assembly service/commissioning at the customer
- 08
Spare parts service
Materials & Processes
Metals
Base material for jigs, gauges and contract-manufactured parts.
Aluminium
Used, among other things, for welding aluminium profiles.
Plastic (fiber-reinforced)
Material processed with fiber reinforcement in 3D printing (Markforged X7).
Castings
Inspection objects for custom inspection gauges.
Locations
Lebach
DEHeadquarters and production (design, jig and fixture construction, gauge construction, contract manufacturing, assembly)
- Lot size
- Individual parts to medium series
- Materials
- Metals, aluminium, fiber-reinforced plastics
- Hermle C400 5-axis milling machine (2019)
- Hermle C250 5-axis milling machine (2021)
- Hermle C12 5-axis milling machine with pallet changer (2018)
- AXA VHC 3 – XTS traveling column machining center (2024)
- Biglia Smart Turn B 1200 2S turn-mill center (2020)
- Bystronic CNC waterjet cutting system (2016)
- Wenzel RS1515 3D coordinate measuring machine (2020)
- G+H FS 840 SD surface and profile grinding machine (2017)
- Donau DANUFLEX 135 radial drilling machine (2017)
- MEBAeco 335 DGA-600 band saw automatic machine (2017)
- Markforged X7 industrial 3D printer (2025)
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 5-axis CNC millingMachining | – | – | – | Medium series | Metall |
| 7-axis turn-millingMachining | – | – | – | – | Metall |
| CNC waterjet cutting (2D)Machining | – | – | – | – | Metall, Material thickness up to 110 mm |
| Surface and profile grindingMachining | – | 600 mm × 400 mm × 375 mm | – | – | Metall |
| Radial drillingMachining | – | – | – | – | Metall |
| Metal band sawing (double miter band saw automatic machine)Machining | – | – | – | – | Metall |
| Additive manufacturing (3D printing with fiber reinforcement)Additive | – | 330 mm × 270 mm × 200 mm | – | – | – |
| Jig and fixture construction (including welding fixtures)Assembly | – | – | – | Small lot sizes – high variance | Metall |
| Gauge construction (inspection gauges for individual parts, assemblies, castings, pipe weldingTesting | – | – | – | – | Metall |
| Contract manufacturingMachining | – | – | – | Individual parts – Medium series | Metall |
| Assembly service (commissioning of fixtures)Assembly | – | – | – | – | – |
| Spare parts service for fixturesAssembly | – | – | – | – | – |
| Design (project management, development, layout planning, simulation)Engineering | – | – | – | – | – |
| 3D measurement (tactile) and measurement documentationTesting | – | approx. 4 m (gauge measurement) | – | – | – |
| Welding (aluminium profiles)Joining | – | – | – | – | Aluminium |
11 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC waterjet cutting system with 2D cutting head | Bystronic | 1 | X=3000 mm, Y=1500 mm, max. material thickness 110 mm | 2016 | Lebach |
| CNC 3D coordinate measuring and marking machine | Wenzel RS1515 | 1 | X=3500 mm, Y=1500 mm, Z=1500 mm | 2020 | Lebach |
| CNC 5-axis milling machine | Hermle C400 (Heidenhain TNC640, tool magazine 38, rotary table diameter 650, | 1 | X=850 mm, Y=700 mm, Z=500 mm | 2019 | Lebach |
| CNC 5-axis milling machine | Hermle C 250 (Heidenhain TNC640, tool magazine 80, rotary table, swivel table) | 1 | X=600 mm, Y=550 mm, Z=450 mm | 2021 | Lebach |
| CNC 5-axis milling machine | Hermle C12 (Heidenhain TNC640, tool magazine 72, rotary table, swivel table, HS Flex, | 1 | X=350 mm, Y=440 mm, Z=330 mm | 2018 | Lebach |
| CNC 5-axis traveling column machining center | AXA VHC 3 – XTS (Heidenhain TNC640, tool magazine 70, | 1 | X=3000 mm, Y=900 mm, Z=850-950 mm | 2024 | Lebach |
| CNC precision surface and profile grinding machine | G+H FS 840 SD | 1 | Grinding area 600 x 400 x 375 mm | 2017 | Lebach |
| High-speed radial drilling machine | Donau DANUFLEX 135 | 1 | Work table 600 x 1800 mm, arm travel 1050 mm | 2017 | Lebach |
| CNC double-column guided double miter metal band saw automatic machine | MEBA MEBAeco 335 DGA-600 | 1 | Working area 500 x 335 mm | 2017 | Lebach |
| Turn-mill center | Biglia Smart Turn B 1200 2S (X=510 mm, Z=1350 mm, B=210°, Y=+120/-90, turning Ø 500 mm, | 1 | – | 2020 | Lebach |
| Industrial 3D printer with fiber reinforcement | Markforged X7 | 1 | 330 x 270 x 200 mm | 2025 | Lebach |
Additional services
Reference customers
Quality
Quality at DKT is created within the process: during production, continuous dimensional accuracy checks take place, and after assembly all part positions are measured to nominal dimensions and documented in dimensional reports. Calibrated measuring and testing equipment as well as the tactile 3D coordinate measuring machine Wenzel RS1515 are available for this purpose.
| Evidence | Lebach |
|---|---|
| ISO 9001 (DIN EN ISO 9001:2015) |
History
- 1986
Company founded by Detlef Thielgen
- 2016
Entry of DKT as an internationally protected trademark; ongoing modernization of the machine park, including a Bystronic waterjet cutting system
- 2024
Investment in the AXA VHC 3 – XTS traveling column machining center
- 2025
Introduction of additive manufacturing with the Markforged X7