Precision turned parts in all machinable metals – CNC long turning from 100 to several 100,000 pieces.
Albert Narr GmbH
Gosheim (headquarters)New on Amplifa
About Albert Narr GmbH
Albert Narr GmbH of Gosheim on the Heuberg manufactures precision turned parts for all industries. On highly efficient CNC long turning machines, round and polygonal profiles with lengths up to 600 mm and diameters up to 32 mm are produced – as standard parts to DIN or as drawing-based parts to customer specification. The manufacturing range includes machining (turning, drilling, milling, thread processing), forming (knurling, thread forming, thread rolling), surface treatment (grinding, polishing, electropolishing, roller burnishing, vibratory finishing), heat treatment and coating; for the complete machining of ready-to-install parts, audited partners from the region are involved. Lot sizes range from 100 to several 100,000 pieces, supplemented by sample and prototype production, 100% inspection, assembly of small subassemblies and consignment stock. Customers come from mechanical and plant engineering, hydraulics and pneumatics, automotive, electrical engineering, medical technology, plastics and precision engineering. The family business with around 25 employees is run by the third generation and has been on the market since 1936.
- Site
- Gosheim
- Processes
- Turning (CNC long turning), Drilling, Milling, Thread milling, thread cutting (internal/external), Cross drilling, Screw drives (hexagon socket, torx socket, slotted, polygonal internal/external profiles), Knurling, Thread forming
- Materials
- Metallic materials (general, all machinable metals), CNC long turning, Machining (turning, drilling, milling), Forming, Surface treatment, Heat treatment, Coating
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1936
- Employees
- 25
- Industries
- Mechanical and plant engineering, Hydraulics and pneumatics, Automotive, Electrical engineering, Medical technology, Plastics
- 01
CNC long turning
- 02
Forming (knurling, thread forming, thread rolling)
- 03
Surface treatment (grinding, polishing, roller burnishing, vibratory finishing)
- 04
Heat treatment
- 05
Coating (with partners)
- 06
100% inspection
- 07
Assembly of small subassemblies
Materials and Processes
CNC long turning
Precision turned parts up to 600 mm in length and Ø 32 mm in round and polygonal profiles.
Machining (turning, drilling, milling)
Machining of all machinable metals including cross drilling, thread cutting and polygonal profiles.
Forming
Knurling, thread forming and thread rolling for cold-work-hardened, chipless threads and profiles.
Surface treatment
Grinding, cylindrical grinding, polishing, electropolishing, roller burnishing and vibratory finishing for defined surfaces.
Heat treatment
Tempering, annealing, hardening and tempering, hardening, induction hardening as well as nitriding and carbonitriding for steel.
Coating
Galvanizing, chromium plating, nickel plating, phosphating, blackening and thread coatings (also via partners).
Sites
Gosheim
DEProduction and administration (headquarters)
- Lot size
- 100 pieces to several 100,000 pieces
- Materials
- All machinable metals
- CNC long turning machines
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Turning (CNC long turning)Machining | – | 600 mm × Ø 32 mm | – | 100 pieces – several 100,000 pieces | all machinable metals |
| DrillingMachining | – | – | – | 100 – several 100,000 | all metallic materials |
| MillingMachining | – | – | – | 100 – several 100,000 | all metallic materials |
| Thread milling, thread cutting (internal/external)Machining | – | – | – | – | all metallic materials |
| Cross drillingMachining | – | – | – | – | all metallic materials |
| Screw drives (hexagon socket, torx socket, slotted, polygonal internal/external profiles)Machining | – | – | – | – | all metallic materials |
| KnurlingForming | – | – | – | – | all metallic materials |
| Thread formingForming | – | – | – | – | all metallic materials |
| Thread rollingForming | – | – | – | – | all metallic materials |
| Grinding / cylindrical grindingSurface | – | – | – | – | all metallic materials |
| Polishing / electropolishingSurface | – | – | – | – | all metallic materials |
| Roller burnishingSurface | – | – | – | – | all metallic materials |
| Vibratory finishingSurface | – | – | – | – | all metallic materials |
| TemperingHeat treatment | – | – | – | – | Steel |
| NormalizingHeat treatment | – | – | – | – | Steel |
| Stress-relief annealingHeat treatment | – | – | – | – | Steel |
| Hardening and temperingHeat treatment | – | – | – | – | Steel |
| Hardening / induction hardeningHeat treatment | – | – | – | – | Steel |
| Nitriding (gas, bath, plasma nitriding)Heat treatment | – | – | – | – | Steel |
| Carbonitriding / nitrocarburizing / gas nitrocarburizingHeat treatment | – | – | – | – | Steel |
| GalvanizingSurface | – | – | – | – | all metallic materials |
| Chromium platingSurface | – | – | – | – | all metallic materials |
| Nickel plating / electroless nickel platingSurface | – | – | – | – | all metallic materials |
| PhosphatingSurface | – | – | – | – | all metallic materials |
| BlackeningSurface | – | – | – | – | all metallic materials |
| Thread coatingsSurface | – | – | – | – | all metallic materials |
| 100% inspectionTesting | – | – | – | – | – |
| Assembly of small subassembliesAssembly | – | – | – | – | – |
| Complete machining of ready-to-install partsMachining | – | 600 mm × Ø 32 mm | – | 100 – several 100,000 | all metallic materials |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC long turning machines | – | – | Turned parts up to 600 mm in length, Ø up to 32 mm | – | Gosheim |
Additional services
Quality
Certified to DIN EN ISO 9001:2015 (TÜV NORD CERT, no. 44 100 23600016). Upon customer request, a 100% inspection of the manufactured parts is performed.
| Evidence | Gosheim |
|---|---|
| ISO 9001 |
History
- 1936
Foundation of the family business in Gosheim.