Customer-specific aluminium sand castings from prototypes to medium series, including post-casting finishing and partner services
Aluminium-Gießerei Grießinger GmbH
Heinrich-Heine-Straße 38, 72555 Metzingen · DENew on Amplifa
Company
The Aluminium-Gießerei Grießinger GmbH in Metzingen manufactures customer-specific aluminium castings using the sand casting process with lost moulds. The service spectrum covers small and medium series up to 60 kg unit weight as well as individual parts and prototype parts in the hand-moulding area up to 150 kg. The company works with clay-bonded natural sands without chemical binders; for prototype parts, inorganically bonded core sands are used in the core-block process, with which particularly low wall thicknesses can be achieved. Sand casting production, post-casting finishing and spectral analysis are carried out in-house; pattern making, heat treatment, machining, assembly and surface treatment are performed through an established partner network, up to the ready-to-install assembly. The castings go into mechanical engineering, machine tool construction, compression and filtration technology, electrical engineering, metrology, medical technology and automotive. Quality and environmental management are certified to DIN EN ISO 9001:2015 and DIN EN ISO 14001:2015.
- Site
- Metzingen
- Processes
- Aluminium sand casting (hand moulding, lost mould), Aluminium sand casting (small and medium series), Core-block process (inorganically bonded core sands, prototype parts), Post-casting finishing, Pattern making (partners: Modellbau Trost, Hansel Modellbau GmbH), Heat treatment (partner: Pirracchio Härterei GmbH), Machining / assembly (partner: Otto Beckert Feinmechanik und Vorrichtungsbau GmbH &, Assembly (ready-to-install assemblies, partner)
- Materials
- EN AC-Al Si8 Cu3, EN AC-Al Si10 Mg (Cu), EN AC-Al Si10 Mg (a), EN AC-Al Si12 (a), EN AC-Al Si5 Mg, EN AC-Al Si7 Mg, EN AC-Al Zn10 Si8 Mg, EN AC-Al Mg3 Si
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, ISO 9001, ISO 14001
- Industries
- Mechanical engineering / Automation, Machine tool construction, Compression & filtration technology, Electrical engineering, Metrology, Medical technology
- 01
Pattern making (partner)
- 02
Aluminium sand casting (hand moulding/machine moulding)
- 03
Core-block process for prototypes
- 04
Post-casting finishing
- 05
Spectral analysis / quality assurance documentation
- 06
Heat treatment (partner)
- 07
Machining (partner)
- 08
Surface treatment (partner)
- 09
Assembly into ready-to-install assemblies (partner)
Alloys and Moulding Sands
EN AC-Al Si8 Cu3
For angular, thin-walled, pressure-tight and vibration-resistant castings with limitations in corrosion resistance and toughness.
EN AC-Al Si10 Mg (Cu)
For angular, thin-walled, pressure-tight castings with very good corrosion resistance and high strength after heat treatment.
EN AC-Al Si10 Mg (a)
For thin-walled, pressure-tight castings with very good corrosion resistance.
EN AC-Al Si12 (a)
For angular, thin-walled castings with very good corrosion resistance.
EN AC-Al Si5 Mg
With excellent weather and seawater resistance as well as very good polishability and machinability.
EN AC-Al Si7 Mg
Universal alloy with very good mechanical properties, excellent corrosion resistance, good weldability.
EN AC-Al Zn10 Si8 Mg
Self-ageing alloy with very good strength and elongation properties, good weldability.
EN AC-Al Mg3 Si
Age-hardenable alloy with medium strength, high elongation at break and excellent corrosion resistance.
Clay-bonded natural sand without chemical binders
Enables clean, smooth surfaces, high dimensional accuracy and reproducibility with ecologically significant use of raw materials.
Inorganically bonded core sands (core-block process)
Allow particularly low wall thicknesses in prototype construction, e.g. for gearbox covers or thermostat housings.
Locations
Metzingen
DEFoundry and company headquarters (aluminium sand casting production)
- Part weight / size
- Small/medium series up to 60 kg, hand moulding up to 150 kg
- Lot size
- Prototypes, individual parts, small and medium series
- Materials
- Aluminium alloys (EN AC-Al Si, Mg, Zn alloys)
- Hand moulding
- Machine moulding
- Spectral analysis
Castings
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Aluminium sand casting (hand moulding, lost mould)Casting | – | – | 150 kg (hand-moulding area, individual | Small and medium series | EN AC-Al Si8 Cu3, EN AC-Al Si10 Mg (Cu), EN AC-Al Si10 Mg (a), EN AC-Al Si12 (a), EN AC-Al Si5 Mg, EN AC-Al Si7 Mg, EN AC-Al Zn10 Si8 Mg, EN AC-Al Mg3 Si |
| Aluminium sand casting (small and medium series)Casting | – | – | 60 kg unit weight | Small series – Medium series | EN AC-Al Si8 Cu3, EN AC-Al Si10 Mg (Cu), EN AC-Al Si10 Mg (a), EN AC-Al Si12 (a), EN AC-Al Si5 Mg, EN AC-Al Si7 Mg, EN AC-Al Zn10 Si8 Mg, EN AC-Al Mg3 Si |
| Core-block process (inorganically bonded core sands, prototype parts)Casting | – | – | – | – | EN AC-Al Si8 Cu3, EN AC-Al Si10 Mg (Cu), EN AC-Al Si10 Mg (a), EN AC-Al Si12 (a), EN AC-Al Si5 Mg, EN AC-Al Si7 Mg, EN AC-Al Zn10 Si8 Mg, EN AC-Al Mg3 Si |
| Post-casting finishingCasting | – | – | – | – | Aluminium |
| Pattern making (partners: Modellbau Trost, Hansel Modellbau GmbH)Engineering | – | – | – | – | – |
| Heat treatment (partner: Pirracchio Härterei GmbH)Heat treatment | – | – | – | – | Aluminium |
| Machining / assembly (partner: Otto Beckert Feinmechanik und Vorrichtungsbau GmbH &Machining | – | – | – | – | Aluminium |
| Assembly (ready-to-install assemblies, partner)Assembly | – | – | – | – | Aluminium |
| Surface treatment / plastic coatings (partner: Kletsch GmbH)Surface | – | – | – | – | Aluminium |
| Spectral analysis (in-house)Testing | – | – | – | – | Aluminium |
| X-ray inspection, tensile tests, coating thickness measurement (partner companies)Testing | – | – | – | – | Aluminium |
Additional services
Quality and Environmental Management
Spectral analyses are carried out in-house; further quality documentation such as X-ray inspection, tensile tests and coating thickness measurement is provided with partner companies. Quality and environmental management are certified to DIN EN ISO 9001:2015 and DIN EN ISO 14001:2015.
| Evidence | Metzingen |
|---|---|
| ISO 9001 | |
| ISO 14001 |
History
- 2013
Initial certification of quality management (ISO 9001) and environmental management (ISO 14001) by ISO-ZERT GmbH.
- 2024
Recertification to DIN EN ISO 9001:2015 and DIN EN ISO 14001:2015, valid until 07.11.2027.