Specialist in aluminium sand casting: from engineering and prototypes to ready-to-install machined components.
Grabert Aluformguss GmbH
Heilbronn (Headquarters/Plant) · Langenbrettach (Administration) · Langenbrettach (Plant)New on Amplifa
Specialist in aluminium sand casting from Heilbronn
Grabert Aluformguss GmbH, based in Heilbronn, specialises in aluminium sand casting and is a partner to the automotive industry and mechanical engineering. The company produces demanding, sometimes thin-walled cast parts using gravity and low-pressure casting, including series parts on the fully automatic moulding line HWS EFA 5.5 (flask size 1250 x 800 x 500 mm) as well as prototypes with a die-casting-like surface. Part weights range from 0.2 kg to 50 kg; all common standardised aluminium alloys are processed. The range of services includes casting simulation, engineering/CAD, in-house pattern making, heat treatment (T6), 5-axis CNC machining, finishing, assembly, jig and machine building, and product inspection. Around 100 employees produce ready-to-install components at the Heilbronn and Langenbrettach sites on over 5,000 square metres and deliver them just in time. Customers include renowned companies from the automotive and electrical industries, mechanical and valve engineering, as well as medical and rail vehicle technology.
- Site
- Heilbronn
- Processes
- Aluminium sand casting (gravity casting), Low-pressure casting (HWS Fillinject low-pressure process), Series production aluminium sand casting (small and medium series), Prototype casting, Machining/CNC machining (5-axis machining, from solid), Heat treatment (T6 tempering), Casting simulation, Engineering/CAD (CAD/CAM design)
- Materials
- G-Al Si7 Mg T6, G-Al Si9 Cu3, G-Al Si10 Mg(Cu), all common/standardised aluminium alloys, Aluminium Sand Casting (Gravity Casting), Low-Pressure Casting (HWS Fillinject)
- Certificates
- ISO 9001:2015, TISAX
- Employees
- 100
- Industries
- Automotive industry, Mechanical engineering, Valve engineering, Medical technology, Electrical industry, Rail vehicle construction
- 01
Engineering/CAD and casting simulation
- 02
Pattern making (master models, core boxes, wood and plastic models)
- 03
Prototype casting
- 04
Aluminium sand casting (gravity/low-pressure process)
- 05
Heat treatment (T6)
- 06
Machining/CNC machining (5-axis)
- 07
Finishing (Trowalising, powder coating, wet painting)
- 08
Assembly
- 09
Product inspection and just-in-time logistics
Materials and Casting Processes
G-Al Si7 Mg T6
Heat-treatable aluminium alloy for high-strength, dynamically loadable and weldable components such as housings and structural parts.
G-Al Si9 Cu3
Common casting alloy for oil pans, gearbox covers and cylinder head covers in the automotive sector.
G-Al Si10 Mg(Cu)
Used for pump housings and air collector housings with high strength requirements.
Aluminium Sand Casting (Gravity Casting)
Classic casting process for demanding, thin-walled components from 0.2 to 50 kg.
Low-Pressure Casting (HWS Fillinject)
Reproducible casting processes for pressure-tight, dynamically loaded safety parts, heat-treatable (T6) and weldable.
Locations
Heilbronn
DEHeadquarters and Plant
- Part weight / size
- 0.2–50 kg
- Lot size
- Small and medium series, prototypes
- Materials
- G-Al Si7 Mg T6, G-Al Si9 Cu3, G-Al Si10 Mg(Cu)
- Fully automatic moulding line HWS EFA 5.5 (1250 x 800 x 500 mm)
- Core shooting machines 5–25 l (Laempe/Genten)
- 4 gas-fired melting furnaces
- 4 electric holding furnaces
- Low-pressure furnace
- Fully automated, redundant heat treatment system
- Shot blasting system
- 5-axis CNC machining centres
- CAM-controlled milling machines (pattern making)
- GOM 3D coordinate measuring machine
- Laser scanner
- X-ray unit
Langenbrettach
DEAdministration and Plant
- Lot size
- Small and medium series
- Materials
- Aluminium alloys
- 5-axis CNC machining centres
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Aluminium sand casting (gravity casting)Casting | – | – | 0.2 kg – 50 kg | – | all common aluminium alloys |
| Low-pressure casting (HWS Fillinject low-pressure process)Casting | – | – | – | – | aluminium alloys |
| Series production aluminium sand casting (small and medium series)Casting | – | Flask size 1250 x 800 mm × 500 mm | 0.2 kg – 50 kg | Medium series | G-Al Si7 Mg T6, G-Al Si9 Cu3, G-Al Si10 Mg(Cu), all common aluminium alloys |
| Prototype castingCasting | die-casting-like surface | – | 0.2 kg – 50 kg | – | all standardised aluminium alloys |
| Machining/CNC machining (5-axis machining, from solid)Machining | – | – | – | – | aluminium cast parts |
| Heat treatment (T6 tempering)Heat treatment | – | – | – | – | aluminium alloys |
| Casting simulationEngineering | – | – | – | – | – |
| Engineering/CAD (CAD/CAM design)Engineering | – | – | – | – | – |
| Pattern making (master models, core boxes, wood and plastic models)Engineering | – | – | – | – | wood, plastic |
| Jig and fixture building (assembly systems, clamping fixtures, test gauges, PLC control)Assembly | – | – | – | – | – |
| Machine building (special machines, test benches, leak test tanks, handling systems)Assembly | – | – | – | – | – |
| Assembly (complete and partial assembly)Assembly | – | – | – | – | – |
| Product inspection (3D metrology, leak testing, sampling according to VDA)Testing | – | – | – | – | – |
| Finishing (Trowalising, powder coating, wet painting)Surface | – | – | – | – | aluminium |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Fully automatic moulding line | HWS EFA 5.5 | 1 | Flask size 1250 x 800 x 500 mm | – | Heilbronn |
| Core shooting machine | Laempe/Genten | – | 5 l to 25 l | – | – |
| Melting furnace (gas-fired) | – | 4 | – | – | – |
| Holding furnace (electrically heated) | – | 4 | – | – | – |
| Low-pressure furnace | – | 1 | – | – | – |
| Heat treatment system (fully automated, redundant) | – | – | – | – | – |
| Shot blasting system | – | – | – | – | – |
| CNC machining centre (5-axis) | – | – | – | – | – |
| CAM-controlled milling machine (pattern making) | – | – | – | – | – |
| Laser scanner | – | – | – | – | – |
| 3D coordinate measuring machine / 3D CNC measuring machine | GOM | – | – | – | – |
| X-ray unit | – | – | – | – | – |
Additional services
Quality and Certification
Every cast part is inspected before delivery in the quality assurance department; laser scanners, 3D CNC measuring machines (GOM), X-ray units, spectral and thermal analysis as well as tensile and hardness testing are used. First sample parts are sampled according to VDA standard; since 2001 the company has been certified according to ISO 9001.
| Evidence | Heilbronn |
|---|---|
| ISO 9001:2015 | |
| TISAX |
History
- 1950er
The original foundry has been transforming into a modern industrial company since the 50s.
- 2001
First certification according to ISO 9001.
- 2005
KK Bachert-Aluformguss GmbH files for insolvency, is acquired by an investor and continued as Grabert Aluformguss GmbH with 50 employees.
- 2016
Merger with Grabert Metallbearbeitungs GmbH & Co. KG to form Grabert Aluformguss GmbH with around 100 employees.