Die casting of aluminium and zinc including machining, assembly and quality assurance from Berlin.
AMZ Weissenseer Präzisionsguss GmbH
Berlin (Roelckestr. 91)New on Amplifa
Company
AMZ Weissenseer Präzisionsguss GmbH is a specialised industrial service provider for die casting based in Berlin-Weißensee, whose roots go back to the Weissensee Guss AG founded by Hugo Stinnes in 1926. The company produces ready-to-install cast parts and assemblies in aluminium die casting (cold chamber process) and zinc die casting (hot chamber process) in standard and special alloys with blank part weights from 0.005 to approx. 5 kg (aluminium) and up to 1.5 kg (zinc). The value chain encompasses development and design with casting simulation, in-house toolmaking, casting on ten die casting cells, CNC machining, surface treatment such as shot blasting, vibratory finishing and laser engraving, T5 heat treatment, and assembly of modules with functional testing and leak testing. Customers come from automotive, aerospace, electronics, medical and safety technology as well as other industrial sectors. More than 80 skilled workers work on 5,500 m² of production space in the new building at Roelckestraße, occupied in 2016, with an annual capacity of 800 t aluminium and 200 t zinc.
- Site
- Berlin
- Processes
- Aluminium die casting (high-pressure/cold chamber process), Zinc die casting (hot chamber process), Low-pressure casting, CNC machining (turning, milling, drilling, thread production), Punch deburring / punching, Vibratory finishing (Rösler vibratory finishing technology), Shot blasting (bowl, manual and through-feed shot blasting systems), Laser engraving (2D data matrix code, traceability)
- Materials
- EN AC-46000 AlSi9Cu3(Fe), EN AC-44300 AlSi12(Fe), EN AC-47100 AlSi12Cu1(Fe), EN AC-43400 AlSi10Mg(Fe), EN AC-AlSi9MgMn (SF36), Z430 (Zamak 2, ZnAl4Cu3), Zamak 3, Zamak 5
- Certificates
- DIN EN ISO 9001:2015, IATF 16949:2016, DIN EN 9100 (Airbus supplier audit), ISO 9001, EN 9100, IATF 16949
- Founded
- 1926
- Employees
- 80+
- Industries
- Automotive and motorcycle manufacturers/automotive suppliers, Aerospace, Information and communication technology, Electrical engineering/Electronics, Medical and safety technology, Construction, metal goods and industrial applications
- 01
Development & Design (CAD, casting simulation Inspire Cast)
- 02
Toolmaking (die casting and stamping tools, maintenance, prototypes)
- 03
Aluminium die casting (cold chamber)
- 04
Zinc die casting (hot chamber)
- 05
CNC machining
- 06
Punch deburring / deburring
- 07
Surface treatment (shot blasting, vibratory finishing, laser engraving)
- 08
Quality assurance
- 09
Module assembly, functional testing, leak testing
Berlin Site
Berlin (Roelckestr. 91)
DEHeadquarters, production, toolmaking, assembly
- Part weight / size
- Blank parts 0.005–approx. 5 kg
- Lot size
- Small series (prototypes/aftermarket) to large series of over one million
- Materials
- Aluminium (EN AC-46000, -44300, -47100, -43400, AlSi9MgMn), zinc (Z430, Zamak 3, Zamak 5), special alloys
- 8 Bühler cold chamber die casting machines H160 to H840 (clamping forces 160–840 t)
- 2 Frech hot chamber die casting machines DAW20/DAW125
- CNC machining and turning centre
- Vibratory finishing and through-feed shot blasting systems (Rösler)
- Laser cutting/engraving system with Universal Robots (2025)
- ZEISS CONTURA G2 700 aktiv 3D coordinate measuring machine
- Bosello SRE MAX 70-120 X-ray system (optional CT)
- AMETEK SPECTROMAXx spectral analysis
- ZwickRoell Z010 tensile/compression testing machine
- Zeltwanger Z-Station leak testing station
- 2 conventional milling machines, 2 lathes, boring mill, precision grinding machine, sink/wire EDM machine
- Ultrasonic mould cleaning system
Components & Industries
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Aluminium die casting (high-pressure/cold chamber process)Casting | up to ±0.1 mm | – | 0.005 kg – approx. 5 kg | over one million cast parts | EN AC-46000 AlSi9Cu3(Fe), EN AC-44300 AlSi12(Fe), EN AC-47100 AlSi12Cu1(Fe), EN AC-43400 AlSi10Mg(Fe), EN AC-AlSi9MgMn, Special alloys |
| Zinc die casting (hot chamber process)Casting | – | – | 0.005 kg – 1.5 kg | – | Z430 (Zamak 2, ZnAl4Cu3), Zamak 3 (Z410), Zamak 5 (ZP0410) |
| Low-pressure castingCasting | – | – | – | – | Aluminium |
| CNC machining (turning, milling, drilling, thread production)Machining | – | – | – | – | Aluminium, Zinc, Steel |
| Punch deburring / punchingForming | – | – | – | – | Aluminium, Zinc |
| Vibratory finishing (Rösler vibratory finishing technology)Surface | – | – | – | – | – |
| Shot blasting (bowl, manual and through-feed shot blasting systems)Surface | – | – | – | – | – |
| Laser engraving (2D data matrix code, traceability)Surface | – | – | – | – | – |
| T5 heat treatmentHeat treatment | – | – | – | – | Aluminium |
| Module assembly (press-fitting, bonding, riveting, pressing in knurled pins)Assembly | – | – | – | – | Steel, Aluminium, Plastic |
| Toolmaking (die casting and stamping tools, prototype production, jig building)Engineering | – | – | – | – | – |
| Development & Design (casting simulation Inspire Cast, CAD with CATIA V5, SolidWorks)Engineering | – | – | – | – | – |
| Quality assurance (X-ray inspection, spectral analysis, 2D/3D coordinate metrology)Testing | – | – | – | – | Aluminium, Zinc |
26 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Cold chamber die casting machine | Bühler H160 | 1 | Clamping force 160 t (1,600 kN), blank part weights 0.05–approx. 5 kg | – | Berlin |
| Cold chamber die casting machine | Bühler H250 | 1 | Clamping force 250 t (2,500 kN) | – | Berlin |
| Cold chamber die casting machine | Bühler H340-1 | 1 | Clamping force 340 t (3,400 kN) | – | Berlin |
| Cold chamber die casting machine | Bühler H340-2 | 1 | Clamping force 340 t (3,400 kN) | – | Berlin |
| Cold chamber die casting machine | Bühler H530 | 1 | Clamping force 530 t (5,300 kN) | – | Berlin |
| Cold chamber die casting machine | Bühler H660-1 | 1 | Clamping force 660 t | – | Berlin |
| Cold chamber die casting machine | Bühler H660-2 | 1 | Clamping force 660 t | – | Berlin |
| Cold chamber die casting machine (Evolution/Carat 840) | Bühler H840 | 1 | Clamping force 840 t (9,000 kN) | 2022 | Berlin |
| Hot chamber die casting machine | Frech DAW20 | 1 | Clamping force 20 t (200 kN) | – | Berlin |
| Hot chamber die casting machine | Frech DAW125 | 1 | Clamping force 125 t (1,250 kN) | – | Berlin |
| CNC machining and turning centre | – | – | – | – | Berlin |
| Vibratory finishing system | Rösler | – | – | – | Berlin |
| Through-feed shot blasting system | Rösler | – | – | – | Berlin |
| Laser engraving machine | – | – | – | – | Berlin |
| Laser system with Universal CoBot robots | Universal Robots | 1 | – | 2025 | Berlin |
| Spectral analysis system | AMETEK (SPECTROMAXx) SPECTROMAXx | – | – | – | Berlin |
| X-ray system | Bosello SRE MAX 70-120 | – | 160/225 kV, optional CT | – | Berlin |
| 3D coordinate measuring machine | ZEISS CONTURA G2 700 aktiv with VAST-XT, CALYPSO | – | – | – | Berlin |
| Leak testing station | Zeltwanger Z-Station | – | – | – | Berlin |
| Tensile/compression testing machine | ZwickRoell Z010 RetroLine with testXpert3 | – | – | – | Berlin |
| Milling machine (conventional) | – | 2 | – | – | Berlin |
| Lathe (conventional) | – | 2 | – | – | Berlin |
| Sink and wire EDM machine | – | – | – | – | Berlin |
| Boring mill | – | – | – | – | Berlin |
| Precision grinding machine | – | – | – | – | Berlin |
| Ultrasonic mould cleaning system | – | – | – | – | Berlin |
Additional services
Reference customers
Quality Assurance
Production-accompanying quality assurance encompasses 2D/3D coordinate measuring technology (ZEISS CONTURA G2), industrial X-ray inspection (Bosello SRE MAX 70-120, optional CT), spectral analysis (SPECTROMAXx), leak testing (Zeltwanger Z-Station), tensile/compression testing (ZwickRoell Z010) as well as roughness depth and coating thickness measurement. The company is certified according to DIN EN ISO 9001:2015 (TÜV Rheinland, valid until 28.10.2027) and was audited by Airbus in 2007 according to DIN EN 9100 for a quality management system for aerospace suppliers.
| Evidence | Berlin (Roelckestr. 91) |
|---|---|
| ISO 9001 | |
| EN 9100 | |
| IATF 16949 |
History
- 1926
Founding of Weissensee Guss AG by Hugo Stinnes, first company seat on Liebermannstraße, Berlin-Weißensee
- 2007
Airbus audit: certification of a quality management system for suppliers to the aerospace industry according to DIN EN 9100
- 2009
Initial certification according to DIN EN ISO 9001 by TÜV Rheinland Cert GmbH (26.11.2009)
- 2016
Occupancy of the new building at Roelckestraße 91, Berlin, with 5,500 m² of production space
- 2022
Commissioning of the Bühler die casting machine Evolution 840 (clamping force up to 9,000 kN) in October
- 2023
End of the IATF 16949:2016 certification (until 23.11.2023)
- 2024
Re-issuance of the ISO 9001:2015 certificate, valid from 29.10.2024 to 28.10.2027
- 2025
Commissioning of an automated laser system with Universal Robots in January