Precision gears, gearbox solutions as well as turning and milling parts from Leoben – from one-off parts to series production
Heinz Ehgartner Gesellschaft m.b.H.
Leoben (AT) · Headquarters & ManufacturingNew on Amplifa
About Heinz Ehgartner GmbH
Heinz Ehgartner GmbH is a precision manufacturer specializing in gears and custom gearbox solutions, headquartered in Leoben, Styria. Its portfolio includes the manufacture of hardened and ground gears, the production of complex turning and milling parts up to a unit weight of 10,000 kg, the repair and modernization of industrial gearboxes, and the design and manufacture of customer-specific gearboxes including assembly and laser welding. Processes such as hobbing, gear shaping, gear and bevel gear grinding according to the Klingelnberg method complement CNC turning and 5-axis milling; the entire production chain is covered in-house, with heat treatment and surface finishing provided via a qualified partner network. In addition to mechanical and plant engineering, printing machine, iron and steel as well as automotive engineering, medical technology serves as a second pillar: since 2015, the company has manufactured orthopedic plates and screws as medical devices. Certified to ISO 9001:2015 and EN 9100:2018, Ehgartner supplies renowned companies and global market leaders throughout Europe.
- Site
- Leoben
- Processes
- Turning, Milling (5-axis), Gear cutting (hobbing, gear shaping, bevel gears, worm gears, chain sprockets, splined shafts), Gear grinding (profile grinding, internal/external grinding), Surface/cylindrical grinding, Gearbox construction (assembly, laser welding, coating, welded constructions), Laser welding, Service & repair of gearboxes (inspection, restoration, retrofit)
- Materials
- Steel, CNC turning, 5-axis milling, Gear cutting, Gear grinding, Surface/cylindrical grinding, Laser welding, Gearbox construction & assembly
- Certificates
- ISO 9001:2015, EN 9100:2018 (Aerospace)
- Founded
- 1979
- Industries
- Value and paper printing machines, Automotive, General gearbox construction, Aerospace / railway / marine engineering, Mechanical and plant engineering, Iron, steel and rolling mills
- 01
Engineering (design, construction, reverse engineering)
- 02
CNC turning
- 03
CNC milling (5-axis)
- 04
Gear cutting
- 05
Gear/surface/cylindrical grinding
- 06
Laser welding & welded constructions
- 07
Assembly and gearbox assembly
- 08
Quality inspection
Materials & Processes
Steel
Material for hardened and ground gears as well as highly stressed drive and gearbox components.
CNC turning
Cycle-controlled lathes and multifunctional turn-mill-drill centers up to Ø 1250 mm, length 6000 mm and 10,000 kg.
5-axis milling
Machining up to 1500 × 2000 × 8000 mm with workpiece weights up to 10,000 kg, quantities from 1–1000.
Gear cutting
Hobbing up to Ø 1600 mm, gear shaping up to Ø 1100 mm, bevel gears to the Klingelnberg system, worm gears, chain sprockets and splined shafts according to ISO/DIN/ANSI standards.
Gear grinding
Profile grinding up to Ø 1800 mm, internal grinding from Ø 400–1200 mm, spiral-bevel gears up to Ø 600 mm.
Surface/cylindrical grinding
External cylindrical up to Ø 1230 mm, internal cylindrical up to Ø 800 mm, surface grinding up to 1500 × 480 × 400 mm; bevel grinding up to AT3.
Laser welding
Joining process, among other things, for laser-welded assemblies in the automotive sector.
Gearbox construction & assembly
Assembly, coating of worn sealing surfaces, welded constructions and spare part production without drawings.
Locations
Leoben
ATHeadquarters and manufacturing: turning, milling, gear cutting, grinding, gearbox construction, metrology
- Part weight / size
- up to 10,000 kg workpiece weight
- Lot size
- 1–1000 pieces (turning/milling)
- Materials
- Steel
- CNC lathes (WEILER)
- Turn-mill-drill centers (WFL, OKUMA, EMCO)
- 5-axis milling machines (HERMLE, HAAS, Unisign)
- CNC travelling-column milling machine (BIMATEC SORALUCE)
- Surface/cylindrical grinding machines (GP, EMAG)
- Wenzel LH 108 / LH 2015 Gear portal measuring machines
- Klingelnberg P 100 gear measurement center
- MAHR contour measuring device
- KEYENCE multisensor measuring machine
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| TurningMachining | – | 6000 mm × Ø 1250 mm | 10.000 kg | 1 – 1000 | – |
| Milling (5-axis)Machining | – | 8000 mm × 2000 mm × 800 mm | 10.000 kg | 1 – 1000 | – |
| Gear cutting (hobbing, gear shaping, bevel gears, worm gears, chain sprockets, splined shafts)Machining | – | Ø 1600 mm | – | – | – |
| Gear grinding (profile grinding, internal/external grinding)Surface | – | 1000 mm × Ø 1800 mm | – | – | – |
| Surface/cylindrical grindingSurface | up to AT3 (bevel grinding) | 400 mm × 1500 mm × 480 mm | 2.000 kg | – | – |
| Gearbox construction (assembly, laser welding, coating, welded constructions)Assembly | – | – | – | – | – |
| Laser weldingJoining | – | – | – | – | – |
| Service & repair of gearboxes (inspection, restoration, retrofit)Engineering | – | – | – | – | – |
| Engineering (design, calculation & construction of gearboxes, reverse engineering)Engineering | – | – | – | – | – |
| Production of hardened and ground gearsMachining | – | – | – | – | Steel |
| Production of orthopedic plates (medical devices)Machining | – | – | – | – | – |
| Production of orthopedic screws (medical devices, automated)Machining | – | – | – | – | – |
| Production of medical instruments (targeting systems etc.)Machining | – | – | – | – | – |
| Coordinate measurement / gear measurement / first article inspection (FAI) / magnetic particleTesting | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Cycle-controlled CNC lathes | WEILER | – | Turning diameter up to Ø 1250 mm, turning length up to 6000 mm | – | Leoben |
| Multifunctional turn-mill-drill centers | WFL, OKUMA, EMCO | – | Turning diameter up to Ø 1250 mm, turning length up to 6000 mm | – | Leoben |
| 5-axis milling machines | HERMLE, HAAS, Unisign | – | up to 1500 x 2000 x 8000 mm | – | Leoben |
| CNC travelling-column milling machine | BIMATEC SORALUCE | – | – | – | Leoben |
| Surface/cylindrical grinding machines (internal/external bevel grinding up to AT3) | GP, EMAG | – | – | – | Leoben |
| 4-axis portal measuring machine with integrated rotary table (LH 108 and LH 2015 Gear) | Wenzel LH 108 / LH 2015 Gear | 2 | Measuring volume 4000 x 2000 x 1500 mm, workpiece diameter 2400 mm, weight 5,000 kg | – | Leoben |
| Fully automatic CNC-controlled gear measurement center | Klingelnberg P 100 | – | Workpiece diameter up to 1,000 mm | – | Leoben |
| Contour measuring device | MAHR | – | – | – | Leoben |
| Multisensor measuring machine | KEYENCE | – | – | – | Leoben |
Additional services
Reference customers
Quality
Quality assurance is carried out with coordinate and gear metrology (Wenzel LH 108/2015 Gear, Klingelnberg P 100, MAHR, KEYENCE) including first article inspection (FAI), magnetic particle, grinding burn and material testing. Gear measurements are performed according to ISO and DIN, gear testing in accordance with VDI/VDE 2612/2613 Group I.
| Evidence | Leoben |
|---|---|
| ISO 9001:2015 | |
| EN 9100:2018 (Aerospace) |
History
- 1979
Founding of Heinz Ehgartner GmbH by Heinz Ehgartner
- 1984
Investment in the first NC machining machines
- 1986
First contract manufacturing of gears
- 1990–1998
First expansion of the production halls and enlargement of the machine fleet
- 2003
Certification according to ISO 9001
- 2007–2008
Second expansion of the production halls and enlargement of the machine fleet
- 2014
Acquisition by Hannes Hundegger and Wolfgang Auf
- 2015
Start of production of orthopedic plates
- 2016
Start of production of orthopedic screws
- 2017
Certification according to EN 9100 (aerospace)
- 2020
Extended experience and projects in the automotive sector
- 2021
Development partner for aerospace & automotive
- 2022–2025
Targeted investments in new machines and innovative equipment