System supplier for ductile iron components (GJS) — from pattern equipment through casting to machining and assembly.
SLR Giesserei St. Leon-Rot GmbH
St. Leon-Rot · Elsterheide · Eging a. See · Gödöllő (HU) · SLR-Sates (CZ)New on Amplifa
About the SLR Group
The SLR Group, headquartered in St. Leon-Rot near Heidelberg, produces over 130,000 tonnes per year of ductile iron (GJS) machine components. Production uses the sand casting process on automatic moulding lines, complemented by an in-house core shop for core-intensive series parts. The process chain covers pattern and tool making, casting, fettling/finishing, NC and CNC machining on more than 55 machines, as well as pre-assembly and inspection of finished parts. The materials comply with DIN EN 1563, from EN-GJS-400-18 to EN-GJS-700-2, as well as solid-solution-strengthened Si materials. Customers come mainly from the construction machinery, commercial vehicle and agricultural machinery industries, as well as rail technology, mechanical engineering, hydraulics and drive technology. In addition to the foundries in St. Leon-Rot and Elsterheide, the group operates a toolmaking site in Eging a. See and machining plants in Hungary and the Czech Republic; it supplies customers in Europe, the USA, South America, China and Japan.
- Site
- St. Leon-Rot
- Processes
- Ductile iron (GJS) – sand casting with automatic moulding line, Core production (core shooting machines, core-intensive series parts), Machining of castings (NC and CNC machining), Pre-assembly / assembly of castings, Pattern making / toolmaking for sand casting (HSC pattern milling, CAD/CAM), Fettling / finishing of castings (MAUS processing machines), Pattern making/toolmaking for sand casting, Core production
- Materials
- EN-GJS-400-18 (LT and RT), EN-GJS-400-15, EN-GJS-450-10, EN-GJS-500-7, EN-GJS-600-3, EN-GJS-700-2, EN-GJS-450-18 (solid-solution strengthened, Si material), EN-GJS-500-14 (solid-solution strengthened, Si material)
- Certificates
- ISO 9001:2015, Testing laboratory per DIN EN ISO/IEC 17025, ISO 9001, Testing laboratory DIN EN ISO/IEC 17025, 3D coordinate measuring technology
- Founded
- 1981
- Industries
- Construction machinery industry, Commercial vehicle industry, Agricultural machinery industry, Rail technology, Mechanical engineering, Hydraulics
- 01
Design/CAD-CAM
- 02
Pattern and tool making (SLR-Tooling)
- 03
Core production
- 04
Casting (sand casting, automatic moulding line)
- 05
Fettling/finishing
- 06
NC/CNC machining
- 07
Pre-assembly
- 08
Metrology/inspection
- 09
Shipping
Materials per DIN EN 1563
EN-GJS-400-18 (LT and RT)
Ferritic ductile iron with high toughness, also suitable for low-temperature and ambient-temperature requirements.
EN-GJS-400-15
Easily cast standard material for highly stressed machine components.
EN-GJS-450-10
Ferritic ductile iron for components with good ductility and strength.
EN-GJS-500-7
Pearlitic-ferritic material for more highly stressed components.
EN-GJS-600-3
Material with increased strength for drive and machine components.
EN-GJS-700-2
High-strength ductile iron for heavily stressed series parts.
EN-GJS-450-18 (Si material)
Solid-solution-strengthened ferritic spheroidal graphite cast iron.
EN-GJS-500-14 (Si material)
Solid-solution-strengthened Si material with high strength and ductility.
EN-GJS-600-10 (Si material)
Solid-solution-strengthened Si material for demanding castings.
Sites of the SLR Group
St. Leon-Rot
DEHeadquarters, ductile iron foundry
- Part weight / size
- 20–200 kg
- Lot size
- Series production
- Materials
- EN-GJS-400-18 to EN-GJS-700-2, Si materials
- Automatic moulding line (flask size 1000 x 700 x 300/300 mm)
- Electric furnaces with melting process control
- Optical emission spectrometer
- MAUS SAM 600
- 3x MAUS SAM 1200
Elsterheide
DEDuctile iron foundry (since 2009)
- Part weight / size
- 50–600 kg
- Lot size
- Series production
- Materials
- EN-GJS-400-18 to EN-GJS-700-2, Si materials
- Automatic moulding line (flask size 1600 x 1200 x 450/450 mm)
- Electric furnaces with melting process control
- Optical emission spectrometer
- 2x MAUS SAM 1200RP
Eging a. See
DEToolmaking/pattern making (SLR-Tooling GmbH)
- Lot size
- Single-piece production of pattern equipment
- 5-axis HSC milling machine RS125C
- 3-axis milling machine C125-4500
- 3-axis milling machine C80-3200
- 3-axis milling machine LMG2080
- 3-axis milling machine LMG1060
- 2x 3D coordinate measuring machine Stiefelmayer C + Renishaw MIH
- Faro measuring arm Platinum 8"
Gödöllő
HUMachining plant (Hungaro-SLR Gépipari KFT)
- NC and CNC machining machines
SLR-Sates s.r.o.
CZMachining plant
- NC and CNC machining machines
Manufactured Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Ductile iron (GJS) – sand casting with automatic moulding lineCasting | – | – | 20 kg – 200 kg | – | EN-GJS-400-18, EN-GJS-400-15, EN-GJS-450-10, EN-GJS-500-7, EN-GJS-600-3, EN-GJS-700-2, EN-GJS-450-18, EN-GJS-500-14, EN-GJS-600-10 |
| Ductile iron (GJS) – sand casting with automatic moulding lineCasting | – | – | 50 kg – 600 kg | – | EN-GJS-400-18, EN-GJS-400-15, EN-GJS-450-10, EN-GJS-500-7, EN-GJS-600-3, EN-GJS-700-2, EN-GJS-450-18, EN-GJS-500-14, EN-GJS-600-10 |
| Core production (core shooting machines, core-intensive series parts)Casting | – | – | – | – | EN-GJS-400-15, EN-GJS-450-10, EN-GJS-500-7, EN-GJS-600-3, EN-GJS-700-2 |
| Machining of castings (NC and CNC machining)Machining | – | – | – | – | EN-GJS-400-15, EN-GJS-450-10, EN-GJS-500-7, EN-GJS-600-3, EN-GJS-700-2 |
| Pre-assembly / assembly of castingsAssembly | – | – | – | – | – |
| Pattern making / toolmaking for sand casting (HSC pattern milling, CAD/CAM)Casting | – | – | – | – | – |
| Fettling / finishing of castings (MAUS processing machines)Surface | – | – | – | – | – |
15 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Automatic moulding line | – | – | Flask size 1000 x 700 x 300/300 mm | – | St. Leon-Rot |
| Automatic moulding line | – | – | Flask size 1600 x 1200 x 450/450 mm | – | Elsterheide |
| MAUS processing machine (fettling) | MAUS SAM 600 | 1 | – | – | St. Leon-Rot |
| MAUS processing machine (fettling) | MAUS SAM 1200 | 3 | – | – | St. Leon-Rot |
| MAUS processing machine (fettling) | MAUS SAM 1200RP | 2 | – | – | Elsterheide |
| 5-axis CNC milling machine (HSC) | RS125C | 1 | X 1700/1950 mm, Y 1250 mm, Z 770 mm, C Ø1250 mm, 18000 min-1 | – | Eging a. See (SLR-Tooling) |
| 3-axis CNC milling machine | C125-4500 | 1 | X 4500 mm, Y 1250 mm, Z 770 mm, 18000 min-1 | – | Eging a. See (SLR-Tooling) |
| 3-axis CNC milling machine | C80-3200 | 1 | X 3220 mm, Y 800 mm, Z 600 mm, 18000 min-1 | – | Eging a. See (SLR-Tooling) |
| 3-axis CNC milling machine | LMG2080 | 1 | X 2030 mm, Y 810 mm, Z 810 mm, 6000/40000 min-1 (HSC attachment spindle) | – | Eging a. See (SLR-Tooling) |
| 3-axis CNC milling machine | LMG1060 | 1 | X 1020 mm, Y 610 mm, Z 760 mm, 8000/50000 min-1 (HSC attachment spindle) | – | Eging a. See (SLR-Tooling) |
| 3D coordinate measuring machine | Stiefelmayer C + Renishaw MIH | 2 | Measuring arm up to 2800 x 1800 x 1500 mm | – | Eging a. See (SLR-Tooling) |
| Measuring arm (3D metrology) | Faro Platinium 8" | 1 | – | – | Eging a. See (SLR-Tooling) |
| NC and CNC machining machines | – | 55+ | – | – | Hungary (Hungaro-SLR) or certified suppliers |
| Optical emission spectrometer | – | – | – | – | Foundries St. Leon-Rot / Elsterheide |
| Electric furnaces with melting process control | – | – | – | – | Foundries St. Leon-Rot / Elsterheide |
Additional services
Quality Management
Quality management is certified to ISO 9001:2015; a testing laboratory operates in accordance with DIN EN ISO/IEC 17025. Every casting batch is checked with an optical emission spectrometer, and the castings are measured using 3D coordinate measuring technology.
| Evidence | St. Leon-Rot | Elsterheide | Eging a. See |
|---|---|---|---|
| ISO 9001 | |||
| Testing laboratory DIN EN ISO/IEC 17025 | |||
| 3D coordinate measuring technology |
History
- 1981
Foundation of Giesserei St. Leon-Rot GmbH as the parent plant and registered office of the SLR Group
- 2009
Commissioning of the Elsterheide foundry site