Repair, rewinding and CNC manufacturing for electric motors, drives and industrial plants
Altuntas Elektromaschinenbau GmbH
Carl-Backhaus-Straße 37, 22926 AhrensburgNew on Amplifa
About Altuntas Elektromaschinenbau
Altuntas Elektromaschinenbau GmbH is an owner-managed master craft business based in Ahrensburg near Hamburg, specialising in the repair, rewinding and general overhaul of electric motors, generators and transformers. The workshop handles three-phase, DC and servo motors up to large machines in the megawatt range, including rewinding with enameled copper wire, vacuum impregnation and insulation class F/H as well as dynamic balancing of rotors up to 5 tonnes. In addition, the company offers CNC machining (3- and 5-axis milling, turning with sub-spindle, drilling) in steel, stainless steel and non-ferrous metals from one-off parts to small series, control cabinet and control system construction, PLC programming, as well as measurement, testing and diagnostic technology such as E-Check, thermography, vibration analysis and laser alignment. A 24/7 emergency service and worldwide on-board marine deployments round out the service portfolio. Customers come from industry and mechanical engineering, marine and shipping, ports, power plants, wind power, the cardboard and paper industry, food production as well as chemicals and pharmaceuticals.
- Site
- Ahrensburg
- Processes
- Repair, rewinding and general overhaul of electric motors (three-phase, DC,, Rewinding with enameled copper wires, vacuum impregnation, insulation class F/H, Balancing (dynamic balancing) of rotors/armatures, Generator overhaul on board / marine & port service (ship motors, generators, port cranes), Wind turbine repair & service (generator and gearbox repair, onshore/offshore), Industrial & machinery service: maintenance/repair of gearboxes, pumps, compressors, fans;, Control cabinet & control system construction, automation technology, PLC programming,, CNC milling, 3- and 5-axis
- Materials
- Steel, Stainless steel, Non-ferrous metals, Enameled copper wire (winding wire)
- Certificates
- ISO 9001 (based, with own quality officer), DNV-GL, ISO 9001, Test report per DIN/VDE, Master craft business
- Industries
- Industry & mechanical engineering, Marine & shipping, Ports & logistics, Power plants & energy, Wind power, Cardboard & paper industry
- 01
Diagnostics / vibration analysis
- 02
Disassembly & teardown
- 03
CNC machining (milling, turning, drilling)
- 04
Rewinding with enameled copper wire & vacuum impregnation
- 05
Bearing and shaft replacement, dynamic balancing
- 06
Painting & final inspection with test report per DIN/VDE
- 07
On-site assembly / on-board deployment
Materials & Processes
Steel
CNC-milled and turned components as well as steel construction to drawing.
Stainless steel
Custom constructions and intricate CNC work, polished or brushed.
Non-ferrous metals
Machined special parts for industrial and marine applications.
Enameled copper wire (winding wire)
Rewinding of motors and generators in our own workshop.
Locations
Ahrensburg
DEHeadquarters, workshop, spare parts warehouse
- Part weight / size
- Balancing up to 5 t
- Lot size
- One-off part to small series
- Materials
- Steel, stainless steel, non-ferrous metals, enameled copper wire
- 3-axis CNC milling machine
- 5-axis CNC milling machine
- CNC lathe with sub-spindle
- Balancing machine (up to 5 t)
Manufacturing & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Repair, rewinding and general overhaul of electric motors (three-phase, DC,Assembly | – | – | – | – | – |
| Rewinding with enameled copper wires, vacuum impregnation, insulation class F/HAssembly | – | – | – | – | Enameled copper wire |
| Balancing (dynamic balancing) of rotors/armaturesAssembly | – | – | 5 t | – | – |
| Generator overhaul on board / marine & port service (ship motors, generators, port cranes)Assembly | – | – | – | – | – |
| Wind turbine repair & service (generator and gearbox repair, onshore/offshore)Assembly | – | – | – | – | – |
| Industrial & machinery service: maintenance/repair of gearboxes, pumps, compressors, fans;Assembly | – | – | – | – | – |
| Control cabinet & control system construction, automation technology, PLC programming,Assembly | – | – | – | – | – |
| CNC milling, 3- and 5-axisMachining | tight tolerances (not quantified) · high surface quality (not quantified) | – | – | one-off part – small series | Steel, Stainless steel, Non-ferrous metals |
| CNC turning with sub-spindleMachining | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| DrillingMachining | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| E-Check, insulation testing, high-voltage test, test report per DIN/VDETesting | – | – | – | – | – |
| Thermography (on board ships & on-site assembly)Testing | – | – | – | – | – |
| Vibration and oscillation analysisTesting | – | – | – | – | – |
| Laser alignment of shaftsTesting | – | – | – | – | – |
| Steel and pipeline construction, ship repair, refits, on-board welding work (partner service)Joining | – | – | – | – | Steel |
| Industrial & power plant construction: turnkey project execution as general contractor,Assembly | – | – | – | – | – |
| Stainless steel processing & custom construction: CNC milling, polishing, coating, specialSurface treatment | polished/brushed | – | – | – | Stainless steel |
| Painting of motorsSurface treatment | – | – | – | – | – |
| Engineering: in-house design, special solutions, on-site disassembly/assemblyEngineering | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC milling machine (3-axis) | – | – | – | – | Ahrensburg |
| CNC milling machine (5-axis) | – | – | – | – | Ahrensburg |
| CNC lathe with sub-spindle | – | – | – | – | Ahrensburg |
| Balancing machine (balancing up to 5 t) | – | – | – | – | Ahrensburg |
Additional services
Quality & Certification
Every repair is completed with a documented test report per DIN/VDE, including high-voltage and insulation testing. The company works with its own quality officer on the basis of ISO 9001 certification, is DNV-GL certified and an approved master craft business for electrical machine construction.
| Evidence | Ahrensburg |
|---|---|
| ISO 9001 | |
| DNV-GL | |
| Test report per DIN/VDE | |
| Master craft business |
History
- ca. 2001
Founded with a focus on electrical machine construction; the website cites over 23 years of experience.
- 2020s
Service portfolio expanded to include CNC machining, wind turbine service, cardboard factory automation and worldwide marine deployments.