
Manufacture of contacting systems, fixture construction, cable assembly as well as single-part and small-series production from CNC, 3D printing and black oxidizing

BMT Kontaktiersysteme GmbH
Sasbach (DE)New on Amplifa
About us
BMT Kontaktiersysteme GmbH from Sasbach near Achern manufactures contacting systems, contacting fixtures and custom connectors for the production and testing of electrical and electronic products. The service portfolio includes fixture construction for the precision-mechanical field, test cable assembly as well as single-part and small-series production by machining. Components are manufactured in-house on CNC milling machines (including HURCO, DATRON), CNC lathes and conventional machines; the service area offers 3D printing (SLS, FDM, DLP), CAD design with Autodesk INVENTOR and black oxidizing to DIN 50938 in an in-house hot black oxidizing bath. Materials are engineering plastics, light metals, case-hardening and tool steel as well as silicone cables for cable assembly. Surface treatments such as hardening, nickel plating, anodizing or painting are performed by suppliers. Customers include suppliers to the automotive and electrical industries as well as small and medium-sized companies. Founded in 1994, the company has been located in its own company building near the A5 since 2008 and is certified to DIN EN ISO 9001.
- Site
- Sasbach
- Processes
- Single-part and small-series production (machining of plastics and light metals), CNC milling, CNC turning, Conventional turning, Conventional milling, Conventional surface grinding, Drilling, sawing, grinding, deburring, 3D printing SLS (laser sintering, PA12)
- Materials
- Polyamide PA2200 (PA12), PA3200GF (PA12 glass-filled), ASA, ABS-ESD7, Photopolymer resins, Case-hardening steel, Tool steel, Light metals
- Certificates
- DIN EN ISO 9001, ISO 9001, ISO 14001, IATF 16949, EN 9100, ISO 13485, EN 1090
- Founded
- 1994
- Employees
- 13-15
- Industries
- Automotive industry, Electrical industry/Electronics, Small and medium-sized enterprises, Medium-sized enterprises
- 01
CAD design (Autodesk INVENTOR)
- 02
CNC machining
- 03
3D printing (SLS/FDM/DLP)
- 04
Black oxidizing
- 05
Cable assembly
- 06
Assembly
Materials and processes
Polyamide PA2200 (PA12)
Standard material for SLS parts on the EOS Formiga P110, for prototypes and high-strength end products.
PA3200GF (PA12 glass-filled)
Glass-filled PA12 for SLS components with increased strength requirements.
ASA
Filament for FDM parts on the STRATASYS F370.
ABS-ESD7
ESD-compliant filament for FDM printing of electrostatically sensitive applications.
Photopolymer resins
For DLP parts with good surface quality, from high-strength to silicone-like elastic.
Case-hardening steel
Single parts protected against corrosion in the in-house black oxidizing bath to DIN 50938.
Tool steel
Machining of single parts from tool steel in small-series production.
Aluminium
Light-metal machining as well as ALU profile structures from the REXROTH profile system.
Engineering plastics
Custom connectors with increased service life and mating cycles.
Silicone cables
Highly flexible cables for cable assembly in climate chambers under temperature fluctuations.
Locations

Sasbach
DEHeadquarters, manufacturing and design (own company building since 2008)
- Lot size
- Single part to small series
- Materials
- Plastics, light metals, case-hardening and tool steel
- 6x HURCO CNC machining centres (VMX24, VMX24Di, VM10, VMX42i, VMX50)
- DATRON MLCube plate milling machine (HSC)
- HURCO TMX10MYi CNC lathe
- Wagner DPM CNC milling machine
- Conventional lathes and milling machines, surface grinding machine
- EOS Formiga P110 (SLS)
- STRATASYS F370 (FDM)
- STRATASYS P3 Origin Two (DLP)
- Hot black oxidizing system (since 2015)
Components







Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Single-part and small-series production (machining of plastics and light metals)Machining | – | – | – | Single part – Small series | Plastics, Light metals, Case-hardening steel, Tool steel |
| CNC millingMachining | – | – | – | – | Plastics, Light metals |
| CNC turningMachining | – | 600 mm (distance between centres) × 350 mm (max. diameter) | – | – | – |
| Conventional turningMachining | – | 750 mm (distance between centres) × 250 mm (diameter) | – | – | – |
| Conventional millingMachining | – | – | – | – | – |
| Conventional surface grindingMachining | – | 500 mm × 250 mm | – | – | – |
| Drilling, sawing, grinding, deburringMachining | – | – | – | – | – |
| 3D printing SLS (laser sintering, PA12)Additive | – | 310 mm × 190 mm | – | – | PA2200 (PA12), PA3200GF (PA12 glass-filled) |
| 3D printing FDMAdditive | – | 350 mm × 250 mm | – | – | ASA, ABS-ESD7 |
| 3D printing DLP (photopolymer)Additive | – | 370 mm × 192 mm | – | – | Photopolymer resins |
| Black oxidizing to DIN 50938Surface | – | 500 mm × 300 mm × 30 mm (plates); basket 550 x 220 x 210 | – | – | Steel |
| Cable assembly and soldering workJoining | – | – | – | – | Silicone cables |
| Fixture construction (precision-mechanical field)Assembly | – | – | – | – | Aluminium (REXROTH profile system) |
| Contacting systems / contacting fixtures / connectorsAssembly | – | – | – | Single part – Series | Engineering plastics, High-performance contacts |
| CAD designs in 3D (Autodesk INVENTOR)Engineering | – | – | – | – | – |
| Component measurement with measurement reportInspection | – | – | – | – | – |
| Hardening, tempering, plasma nitriding, nitrocarburizing (supplier)Heat treatment | – | – | – | – | Steel |
| Electroless nickel plating, chrome plating (supplier)Surface | – | – | – | – | – |
| Anodizing in RAL colours (supplier)Surface | – | – | – | – | Aluminium |
| Painting in RAL colours (supplier)Surface | – | – | – | – | – |
18 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC machining centre | HURCO VMX24 | 3 | X610 / Y510 / Z610, 24-fold tool changer | – | Sasbach |
| CNC machining centre | HURCO VMX24Di | 1 | X610 / Y510 / Z610, 24-fold tool changer | – | Sasbach |
| CNC machining centre | HURCO VM10 | 1 | X610 / Y450 / Z510, 20-fold tool changer | – | Sasbach |
| CNC machining centre | HURCO VMX42i | 1 | X1060 / Y600 / Z600, 24-fold tool changer | – | Sasbach |
| CNC machining centre | HURCO VMX50 | 1 | X1280 / Y660 / Z610, 24-fold tool changer | – | Sasbach |
| Plate milling machine (HSC) | DATRON MLCube | 1 | X1520 / Y1050 / Z200, 3KW HSC spindle, tool changer, measuring probe, vacuum clamping system | – | Sasbach |
| CNC milling machine | Wagner DPM | 1 | X750 / Y400 / Z400, manual tool change | – | Sasbach |
| CNC lathe | HURCO TMX10MYi | 1 | max. diameter 350 mm, distance between centres 600 mm, 52 mm hollow spindle, 12 driven tools, Y-axis | – | Sasbach |
| Conventional lathe | – | 1 | up to diameter 250 mm, distance between centres 750 mm | – | Sasbach |
| Conventional lathe | – | 1 | up to diameter 200 mm, distance between centres 500 mm | – | Sasbach |
| Conventional milling machine | – | 1 | X400 / Y300 / Z350 | – | Sasbach |
| Surface grinding machine | – | 1 | 500 x 250 mm | – | Sasbach |
| Drilling, sawing, grinding and deburring machines (various) | – | – | – | – | Sasbach |
| SLS 3D printer (laser sintering system) | EOS Formiga P110 | 1 | Build volume 190 x 210 x 310 mm (WxDxH) | – | Sasbach |
| FDM 3D printer | STRATASYS F370 | 1 | Build volume 350 x 250 x 350 mm (WxDxH) | – | Sasbach |
| DLP 3D printer | STRATASYS P3 Origin Two | 1 | Build volume 192 x 108 x 370 mm (WxDxH) | – | Sasbach |
| Hot black oxidizing system | – | 1 | Plates up to 500 x 300 x 30 mm; basket 550 x 220 x 210 mm | 2015 | Sasbach |
| CAD/CAM workstations | Autodesk INVENTOR | – | – | – | Sasbach |
Additional services
Quality
Production is certified to DIN EN ISO 9001 (Reg. No. QI 0714002). Components can be measured with a measurement report.
| Evidence | Sasbach |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| IATF 16949 | |
| EN 9100 | |
| ISO 13485 | |
| EN 1090 |
History
- 1994
Founded by Karl-Markus Horn
- 2002
Stefan Bohnert takes over the company and steadily expands it
- 2008
Move to the company's own building in Sasbach near Achern close to the A5
- 2015
Acquisition of the hot black oxidizing system for black oxidizing work to DIN 50938