Energy infrastructure, metal construction and screw foundations: PV, storage, charging infrastructure, CNC machining and laser cutting from in-house production
Bidirex GmbH
Neuenburg am Rhein · Neuenburg am Rhein (Leisinger plant) · ChamNew on Amplifa
Energy infrastructure and metal construction from a single group
Bidirex GmbH, based in Neuenburg am Rhein, combines energy infrastructure with in-house metal fabrication. The company plans, builds, finances and operates rooftop PV systems, PV carports, battery storage and AC/DC charging infrastructure up to 420 kW (HPC), and through Bidirex Energy GmbH offers electricity models as well as balancing group and virtual power plant services. In metal construction, the Leisinger plant produces CNC turned and milled parts up to 700 mm in diameter and 3,000 mm in length on a Mazak machine fleet with ten CNC stations, and performs tube and flat sheet laser cutting (tube diameters 20–323.9 mm, workpiece lengths up to 12.5 m), press braking, robotic welding and assembly. Materials include steel, stainless steel and aluminium. At the Cham site, removable V-System steel screw foundations are installed, among other things for PV and carport projects. Customers come from retail and real estate, industry and logistics, municipalities, vehicle and trailer manufacturing, and agriculture. Bidirex was founded in 2022 and in 2023 acquired Leisinger Deutschland GmbH, whose origins go back to a smithy in Neuenburg in 1950.
- Site
- Neuenburg am Rhein
- Processes
- CNC turning, CNC milling, Turn-mill complete machining, Laser cutting (tube/profile), Flat sheet laser 2D sheet cutting, Press braking (CNC press brake), Welding technology (robotic welding, ISO 3834-2), Custom construction / custom assemblies to drawing (single parts, assemblies, special constructions)
- Materials
- Steel, Stainless steel, Aluminium, Steel (screw foundations)
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 3834-2, EN 1090-2, EN 1090 (CPR), PCF (Product Carbon Footprint), ISO 9001, ISO 3834-2
- Founded
- 2022
- Industries
- Retail & real estate, Industry & logistics, Municipalities, Vehicle and trailer manufacturing, Agriculture, Energy infrastructure
- 01
Site assessment and project development (electrical planning)
- 02
Engineering and 3D design
- 03
Laser cutting and press braking
- 04
CNC machining (turning/milling)
- 05
Welding technology (robotic welding)
- 06
Assembly and assembly inspection
- 07
Installation and commissioning (PV, storage, charging infrastructure)
- 08
Inspection using ZEISS 3D metrology
- 09
Operation, electricity models and marketing (Bidirex Energy GmbH)
Materials and processes
Steel
Main material for screw foundations, structural steelwork according to EN 1090-2, laser cutting and welded assemblies.
Stainless steel
For corrosion-exposed laser-cut and machined parts in vehicle and infrastructure applications.
Aluminium
Used in tube and flat sheet laser cutting as well as for lightweight constructions and load-bearing structures.
Sites
Neuenburg am Rhein
DEHead office / Renewable Energy & E-Mobility
- Electrical planning and project development
- AC/DC charging infrastructure up to 420 kW
- PV planning and installation
- Battery storage integration
Neuenburg am Rhein (Leisinger plant)
DEMetal construction / Manufacturing
- Lot size
- Single parts up to small and repeat production runs
- Materials
- Steel, stainless steel, aluminium
- 2x Mazak multi-spindle turning center HQR 250MSY
- 2x Mazak twin-spindle turning center Multiplex W-200
- Mazak Integrex i-500S
- Mazak Quick Turn 350MY (Ø 700 mm, 3,000 mm length)
- Mazak Quick Turn 250MY
- Mazak VTC-530C (5-axis, 530 x 510 mm, part lengths up to 1,740 mm)
- Bystronic tube laser FL 300 (Ø 20–323.9 mm)
- Bystronic tube laser ByTube Star 330
- Bystronic flat sheet laser ByCut Smart 3015
- Bystronic press brake Xpert Pro 250 (250 t)
- Robotic welding systems
- ZEISS 3D coordinate measuring machine
Cham
DEScrew foundations
- Lot size
- Project manufacturing
- Materials
- Steel
- V-System screw foundations Ø 114 mm
- Micropiles, removable
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC turningMachining | – | 3000 mm × Ø 700 mm | – | – | Steel, Stainless steel, Aluminium |
| CNC millingMachining | – | 1740 mm × 530 mm × 510 mm | – | – | – |
| Turn-mill complete machiningMachining | – | 3000 mm × Ø 700 mm | – | – | – |
| Laser cutting (tube/profile)Machining | – | 12.5 m × Ø 323.9 mm | – | – | Steel, Stainless steel, Aluminium |
| Flat sheet laser 2D sheet cuttingMachining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Press braking (CNC press brake)Forming | – | – | – | – | Steel, Stainless steel, Aluminium |
| Welding technology (robotic welding, ISO 3834-2)Joining | – | – | – | – | Metallic materials, Steel, Aluminium |
| Custom construction / custom assemblies to drawing (single parts, assemblies, special constructions)Engineering | – | – | – | – | – |
| Assembly and inspection (assembly of complete units)Assembly | – | – | – | – | – |
| Structural steelwork according to EN 1090-2 (load-bearing steel and aluminium structures)Assembly | – | – | – | – | Steel, Aluminium |
| Screw foundations (V-System, micropiles, removable)Assembly | – | Ø 114 mm | – | – | Steel |
| 3D metrology / coordinate measurementInspection | – | – | – | – | – |
| PV system planning and installation (rooftop, carport)Assembly | – | – | 9.45 MWp (project reference) | – | – |
| Charging infrastructure (AC/DC charging points, HPC up to 420 kW)Assembly | – | – | – | – | – |
| Battery storage installation (BESS)Assembly | – | – | – | – | – |
20 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Multi-spindle turning center | Mazak HQR 250MSY | 2 | – | – | Leisinger plant, Neuenburg am Rhein |
| Twin-spindle turning center | Mazak Multiplex W-200 | 2 | – | – | Leisinger plant, Neuenburg am Rhein |
| Turn-mill center | Mazak Integrex i-500S | 1 | – | – | Leisinger plant, Neuenburg am Rhein |
| CNC turning and milling center (Y-axis) | Mazak Quick Turn 350MY | 1 | Diameter up to 700 mm, length up to 3000 mm | – | Leisinger plant, Neuenburg am Rhein |
| Compact turn-mill center | Mazak Quick Turn 250MY | 1 | – | – | Leisinger plant, Neuenburg am Rhein |
| Turn-mill center (legacy machine) | Mazak Super Quick Turn MSY 250 | 1 | – | – | Leisinger plant, Neuenburg am Rhein |
| Twin-spindle turning center (legacy machine) | Mazak Multiplex 6200Y | 1 | – | – | Leisinger plant, Neuenburg am Rhein |
| Vertical machining center (5-axis) | Mazak VTC-530C | 1 | Working space 530 x 510 mm, part lengths up to 1740 mm | – | Leisinger plant, Neuenburg am Rhein |
| Tube laser | Bystronic FL 300 | 1 | Tube diameter 20-323.9 mm, length up to 12.5 m | – | Leisinger plant, Neuenburg am Rhein |
| Tube laser | Bystronic ByTube Star 330 | 1 | Workpiece length up to 12.5 m | – | Leisinger plant, Neuenburg am Rhein |
| Flat sheet laser | Bystronic ByCut Smart 3015 | 1 | Format 3015 | – | Leisinger plant, Neuenburg am Rhein |
| Press brake (CNC press brake) | Bystronic Xpert Pro 250 | 1 | Press force 250 t | – | Leisinger plant, Neuenburg am Rhein |
| 3D coordinate measuring machine | ZEISS | – | – | – | Leisinger plant, Neuenburg am Rhein |
| Optical roundness measuring machine | – | – | – | 2016 | Leisinger plant, Neuenburg am Rhein |
| Robotic welding system | – | – | – | 2009-2013 | Leisinger plant, Neuenburg am Rhein |
| Multi-spindle machines | – | – | – | 2015 | Leisinger plant, Neuenburg am Rhein |
| AC charging station | Bidirex NOVA AC | – | – | – | – |
| AC charging station with media display | Bidirex SIRIUS AC | – | – | – | – |
| DC fast charging station | Bidirex ORION DC | – | – | – | – |
| HPC charging solution | Bidirex TITAN HPC | – | – | – | – |
Additional services
Reference customers
Quality and certifications
Quality assurance includes ZEISS 3D coordinate measuring technology as well as an optical roundness measuring machine. Certified systems are DIN EN ISO 9001:2015, DIN EN ISO 3834-2 and EN 1090-2 with CPR documents for load-bearing steel and aluminium structures.
| Evidence | Neuenburg am Rhein (Leisinger plant) |
|---|---|
| ISO 9001 | |
| ISO 3834-2 | |
| EN 1090-2 |
History
- 1950
Origin: The company Leisinger emerges from the Eckerlin smithy in Neuenburg am Rhein, which had been building trailers since 1936.
- 1960er
Move into the new company premises in Neuenburg; custom-built trailers and truck bodies.
- 1980er
Vehicle manufacturing is spun off and leased out; transition to a supplier business.
- 2002
Family transition following the death of H.-A. Leisinger.
- 2008
Business operations transfer to Leisinger Deutschland GmbH.
- 2009–2013
Introduction of robotic welding systems, 3D design and SAP; achievement of ISO 9001 and ISO 3834-2.
- 2015
Product FMEA, multi-spindle machines and a subsidiary for charging stations.
- 2021
Expanded CNC manufacturing up to 700 mm diameter and 3,000 mm length; ZEISS metrology extends inspection capabilities.
- 2022
Foundation of Bidirex GmbH in February by Ali Yarayan, Alexander Eyhorn and Jürgen Fitschen.
- 2023
Acquisition of Leisinger Deutschland GmbH in an asset deal; manufacturing and workforce are merged.
- 2024
First PV and charging park in Auggen, joint venture with Arbireo Capital AG and establishment of the screw foundations division at the Cham site.
- 2025
Peter Bertling becomes CFO; realization of a 9.45 MWp rooftop PV system for Logad.
- 2026
Alexander Eyhorn becomes CINO; Doshi Retreat project for Vitra with 334 screw foundations.