CNC sheet metal fabrication, system technology and plant engineering – from idea to production readiness
ZENTNER Elektrik-Mechanik GmbH
79111 Freiburg (Jechtinger Str. 15)New on Amplifa
ZENTNER Elektrik-Mechanik: Sheet metal fabrication, system technology and plant engineering since 1886
ZENTNER Elektrik-Mechanik GmbH is a family-run manufacturing service provider in Freiburg, in operation since 1886. The company manufactures CNC sheet metal parts, complete system technology and custom plant engineering for the printing industry, medical and dental technology, IT system technology and automation technology. The value chain ranges from 3D-CAD design through punch-laser processing, bending, welding (MIG/MAG, TIG, CMT, laser welding) and surface finishing to series assembly on six assembly lines in one-piece flow. Materials processed include aluminium, steel, stainless steel, copper, brass and plastics in sheet thicknesses from 0.1 to 20 mm, in lot sizes from 10 to 100,000 pieces. The machine fleet includes, among others, TRUMPF TruMatic 7000 and TruLaser 5030, AMADA HG-1003 ATC and a Haas VF-4SSC machining centre. In plant engineering, fully automatic washing, stripping and cleaning systems for screen, offset and rotary printing are built with PLC control and process visualization. The control panel shop is UL-certified for export to the USA and Canada.
- Site
- Freiburg
- Processes
- 2D laser cutting, Punch-laser processing (punching, forming, laser cutting in one setup), Punching, laser cutting, forming, embossing, bending, marking, labeling, dot peening, louver, Press braking (press brakes), Lever shears, MAG welding, MIG welding, TIG welding
- Materials
- Steel EN 10130, Steel EN 10025, Spring steel 1.1200, Spring steel 1.4310, Stainless steel 1.4016, Stainless steel 1.4301, Stainless steel 1.4307, Stainless steel 1.4404
- Certificates
- ISO 9001:2015, UL 508A / CSA-C22.2 No. 14 (Industrial Control Panels, USA/Canada), DIN ISO 3834-3 welding supervision, VDE certified / VDE-supervised production facility, UL 508A / CSA-C22.2 No. 14, DIN ISO 3834-3, EN ISO 9606-2 (welder qualification), VDE-supervised production facility
- Founded
- 1886
- Industries
- Printing industry (screen, offset, rotary printing), Medical and dental technology, IT system technology / server housings, Automation technology, Industrial construction / building technology, Control panel building (UL, USA/Canada)
- 01
Development/design (3D-CAD, CAM)
- 02
Sheet metal storage and cutting (laser cutting, punch-laser)
- 03
Forming (bending, deep drawing, roller levelling)
- 04
Joining (welding, stud welding, clinching, riveting, press-fitting)
- 05
Surface finishing (deburring, painting, anodizing)
- 06
Assembly (6 assembly lines, control panel building)
- 07
Plant engineering and final assembly
- 08
Quality assurance and shipping
Materials and processes
Steel (EN 10130, EN 10025, 1.1200)
Cold-rolled fine sheet steel and spring steel for punch-laser and formed parts
Stainless steel 1.4301
Used e.g. for medical technology housings with TIG and spot welding
Stainless steel 1.4404
Corrosion-resistant material for demanding assemblies
Stainless steel 1.4571
High-strength stainless steel for welded assemblies and plant engineering
Aluminium AlMgSi1
Weldable and formable aluminium for housings and system components
Aluminium AlMg3
Seawater-resistant sheet for structural assemblies
Copper Cu-DHP
Electrical components and busbars
Brass
Fine sheet parts for electrical and decorative applications
Plastic (PC, PMMA, POM, PP, PTFE)
Window panels, insulators and protective elements in system technology and plant engineering
Locations
Freiburg
DEHeadquarters, production of sheet metal fabrication, system technology and plant engineering
- Part weight / size
- Sheet thickness 0.1–20 mm
- Lot size
- 10–100,000 pieces
- Materials
- Steel, stainless steel, aluminium, copper, brass, plastic
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 2D laser cuttingMachining | – | 3000 mm × 1500 mm | 0.1-20 mm sheet thickness | – | Aluminium, Steel, Stainless steel |
| Punch-laser processing (punching, forming, laser cutting in one setup)Forming | – | 3000 mm × 1500 mm | Punch processing max. 6 mm sheet | – | Aluminium, Steel, Stainless steel |
| Punching, laser cutting, forming, embossing, bending, marking, labeling, dot peening, louverForming | – | – | – | – | Steel, Stainless steel, Aluminium |
| Press braking (press brakes)Forming | – | 3000 mm | max. 10 mm sheet thickness | – | Steel, Stainless steel, Aluminium |
| Lever shearsMachining | – | 3000 mm | max. 5 mm sheet thickness | – | Steel, Stainless steel, Aluminium |
| MAG weldingJoining | – | – | – | – | Steel, Stainless steel (VA), Aluminium |
| MIG weldingJoining | – | – | – | – | Steel, Stainless steel (VA), Aluminium |
| TIG weldingJoining | – | – | – | – | Steel, Stainless steel (VA), Aluminium |
| CMT welding (Cold Metal Transfer, thin sheets from 0.3 mm)Joining | – | – | from 0.3 mm sheet thickness | – | Aluminium, Steel, Stainless steel |
| Laser welding (automated laser welding)Joining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Resistance spot weldingJoining | ±0.1 mm | – | – | – | Stainless steel 1.4301 |
| Stud welding (automated)Joining | – | 1270 mm × 2600 mm | – | – | – |
| Joining methods: clinching, riveting, bondingJoining | – | – | – | – | Aluminium, Steel, Stainless steel |
| Press-fitting (insertion press with automatic feeding)Joining | – | – | – | – | – |
| Deep drawingForming | – | – | – | – | Aluminium, Steel, Stainless steel |
| CNC milling (HSC machining, prototyping and series production)Machining | – | – | – | – | – |
| CNC turningMachining | – | – | – | – | – |
| Deburring (deburring machine with grinding belt and circular brushes)Surface | – | 1350 mm | – | – | – |
| Surface finishing: grinding, brushing, anodizing, painting, coating, printingSurface | – | – | – | – | Aluminium, Steel, Stainless steel |
| Painting (wet paint with drying oven)Surface | – | – | – | – | – |
| Roller levellingForming | – | – | – | – | – |
| Pressing (eccentric presses 63T/125T, hydraulic press 25T)Forming | – | – | – | – | – |
| Assembly (mechatronics assembly lines, one-piece-flow assembly up to 750x750x200 mm, 6 assemblyAssembly | – | 750 mm × 750 mm × 200 mm | – | 10 pieces – 100,000 pieces | – |
| Control panel building (UL508A, CSA-C22.2 No. 14, up to 4000 A rated current)Assembly | – | – | – | 5000 pieces | – |
| Development/design with 3D-CAD, CAM programming, PLC control and process visualizationEngineering | – | – | – | – | – |
| Quality assurance (vertical length measuring machine MICRO-HITE plus M 6000)Testing | – | – | – | – | – |
| Plant engineering (cleaning systems, washing, stripping and feeding systems for the printingEngineering | – | – | – | – | Aluminium, Steel, Stainless steel |
19 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 2D laser cutting center | TRUMPF TruLaser 5030 (TL 5030) | 1 | 2D laser cutting up to 20-25 mm sheet thickness, with automatic loading/unloading system | – | Freiburg, Jechtinger Str. 15 |
| Punch-laser center (combination machine punching/laser cutting/forming) | TRUMPF TruMatic 7000 (TC 7000) | 1 | – | – | Freiburg |
| Punch-laser center | TRUMPF TruMatic TC 6000 | 1 | connected to Stopa storage system | – | Freiburg |
| Sheet metal storage and multi-tier system | Stopa | 1 | – | – | Freiburg |
| Press brake with tool changer | AMADA HG-1003 ATC | 1 | – | – | Freiburg |
| Bending machine (press braking) | TRUMPF TruBend 7036 | 1 | – | – | Freiburg |
| Fully automated bending cell (bending center) | TRUMPF TruBend 5130 | 1 | – | – | Freiburg |
| Press brakes (5- and 6-axis) | – | 6 | max. 3000 mm working area, max. 10 mm sheet thickness | – | Freiburg |
| 4-axis machining centre (CNC milling machine, HSC, tool changer) | Haas VF-4SSC (VF-4SS) | 1 | – | 2020 | Freiburg |
| CNC lathe | Haas TL-1 | 1 | – | – | Freiburg |
| Laser welding system with swivel-tilting positioner and rotary changer | TRUMPF TruLaser WELD 5000 | 1 | – | – | Freiburg |
| Robotic welding cell with CMT welding technology | Fronius / TecnoRobot CMT | 1 | Workpiece changer up to 500 kg | – | Freiburg |
| Stud welding machine | SOYER KTS-2600 | 1 | 3 welding heads, working area 1270 x 2600 mm | – | Freiburg |
| Deburring machine with grinding belt and circular brushes | Weber PT 1350 | 1 | Working width 1350 mm | – | Freiburg |
| Insertion press with automatic feeding | PEM Serter 3000 | 1 | – | – | Freiburg |
| Roller levelling machine | – | 1 | – | – | Freiburg |
| Painting system with drying oven for wet paints | – | 1 | – | – | Freiburg |
| Eccentric presses (63T/125T) and hydraulic press (25T) | – | – | – | – | Freiburg |
| Vertical length measuring machine | MICRO-HITE plus M 6000 | 1 | – | – | Freiburg |
Additional services
Reference customers
Quality and certifications
Quality assurance includes a MICRO-HITE plus M 6000 vertical length measuring machine as well as reproducible manufacturing tolerances of ±0.1 mm. The company is certified to ISO 9001:2015 and DIN ISO 3834-3 and manufactures UL508A-certified control cabinets for the USA and Canada.
| Evidence | Freiburg |
|---|---|
| ISO 9001:2015 | |
| UL 508A / CSA-C22.2 No. 14 | |
| DIN ISO 3834-3 | |
| EN ISO 9606-2 (welder qualification) | |
| VDE-supervised production facility |
Company history
- 1886
Company founded in Freiburg
- 2017
UL certification (UL508A / CSA-C22.2 No. 14) for control panel building for the USA and Canada; ZAHORANSKY AG ranks ZENTNER among the best 15 of 600 suppliers; construction start of the East hall
- 2020
Commissioning of the 4-axis Haas VF-4SSC machining centre; award as a top employer among SMEs
- 2021
Commissioning of the TRUMPF TruLaser 5030