Custom design and manufacturing of gearboxes, couplings and gears up to 2,600 mm in diameter.
GEKU Getriebe & Kupplung Technologie GmbH
Langenfeld (Rhineland) · Production facility (approx. 5,000 m², of which 3,400 m² enclosed)New on Amplifa
About GEKU
GEKU Getriebe & Kupplung Technologie GmbH was founded in 1981 and manufactures custom gearboxes, couplings and machine parts such as spur gears, helical gears, internal helical gears and bevel gears, shafts, pinion gears, herringbone gears as well as worm gears. Gearboxes are designed and manufactured to customer specifications with torques of up to 6,500,000 Nm; gear manufacturing covers sizes from 5 mm to 2,600 mm with modules from 0.5 to 50. Production is carried out by machining on gear hobbing machines, CNC profile grinding machines, lathes and milling machines as well as by heat treatment using high-frequency induction hardening. Services also include the repair of heavy-duty gearboxes and the balancing of rotors and shafts. Main customers come from the steel, automotive and energy industries. The company employs more than 70 qualified staff; since 2019 there has been an additional site in Langenfeld (Rhineland) for order intake, delivery, planning and warehousing.
- Site
- Langenfeld
- Processes
- Gear/gearbox manufacturing (gearboxes to customer specifications), Gearbox manufacturing up to 6,500,000 Nm, Spur gears, helical gears, internal helical gears and bevel gears, Shafts with keyway, Pinion gears, herringbone gears, Worm gears and worm wheels, Gears from 5 mm to 2600 (mm), module 0.5 to 50, High-frequency induction hardening
- Materials
- Machining (turning, milling, gear cutting, grinding), High-frequency induction hardening, Shaping (vertical slotting machines), Balancing
- Certificates
- ISO 9001
- Founded
- 1981
- Employees
- more than 70
- Industries
- Steel industry, Automotive industry, Energy
- 01
Order intake and planning
- 02
Design/Engineering
- 03
Machining (turning, milling, gear cutting)
- 04
Heat treatment (induction hardening)
- 05
Grinding (gear profile, cylindrical, surface and bore grinding)
- 06
Balancing
- 07
Quality inspection
- 08
Warehousing and delivery
Materials & Processes
Machining (turning, milling, gear cutting, grinding)
Machining of gearbox components such as gears, shafts and worm gears in sizes from 5 mm to 2,600 mm.
High-frequency induction hardening
Heat treatment for hardening of gear flanks and component surfaces, incl. measurement of hardening depth by ultrasound.
Shaping (vertical slotting machines)
Machining of gear teeth and internal profiles on CNC vertical slotting machines up to ø 3,200 x 2,600 x 1,500 mm.
Balancing
Balancing of rotors and shafts on a balancing machine up to ø 350 x 1,000 mm.
Locations
Langenfeld (Rhineland)
DESecond company seat since 2019: order intake, delivery, planning, warehousing
Production facility
Production, company headquarters
- Part weight / size
- Gears 5–2,600 mm; gearboxes up to 6,500,000 Nm
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gear/gearbox manufacturing (gearboxes to customer specifications)Machining | – | – | – | – | – |
| Gearbox manufacturing up to 6,500,000 NmEngineering | – | – | – | – | – |
| Spur gears, helical gears, internal helical gears and bevel gearsMachining | – | – | – | – | – |
| Shafts with keywayMachining | – | – | – | – | – |
| Pinion gears, herringbone gearsMachining | – | – | – | – | – |
| Worm gears and worm wheelsMachining | – | – | – | – | – |
| Gears from 5 mm to 2600 (mm), module 0.5 to 50Machining | – | – | – | – | – |
| High-frequency induction hardeningHeat treatment | – | – | – | – | – |
| Balancing (balancing of rotors/shafts)Testing | – | – | – | – | – |
| Quality inspection (CMM, hardness testing, ultrasound, spectral analysis, surface roughness,Testing | Zeiss CMM 1.7 µm; Faro CMM ±0.026 mm | – | – | – | – |
43 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Horizontal gear hobbing machine | WMW-MODUL ZFWZ 1250x14/II | 1 | ø 1250 x 14 Mn | 1973 | – |
| Horizontal gear hobbing machine | WMW-MODUL ZFWZ1000 | 1 | ø 1000 x 16 Mn | 1978 | – |
| Gear hobbing machine | WMW-MODUL ZFWZ 630 | 1 | ø 800 x 16 Mn | 1980 | – |
| Gear hobbing machine | WMW-MODUL ZFWZ 630 | 1 | ø 800 x 16 Mn | 1982 | – |
| Gear hobbing machine | WMW-MODUL ZFWZ 2000/3 | 1 | ø 2100 x 22 Mn (30 Mn) | 1980 | – |
| Gear hobbing machine | ZTS/KOLOMNA 5A342 | 1 | ø 2500 x 30 Mn | 1992 | – |
| Spur gear milling machine / CNC profile grinding machine | LIEBHERR LC 800 (SN: 2332) | 1 | ø 2600 x 1500 mm, 50 Mn | 2021 | – |
| CNC gear hobbing machine | LIEBHERR LC 2000 (SN: 2387) | 1 | ø 1500 x 1000 mm, 35 Mn | 2022 | – |
| CNC gear hobbing machine | LIEBHERR LC 500 (SN: FN 4538) | 1 | ø 500 x 1000 mm, 12 Mn | 2025 | – |
| Spur gear milling machine / CNC profile grinding machine | HÖFLER-KLINGELNBERG RAPID 2500 | 1 | 700 x 1000 x 600 mm | 2014 | – |
| Spur gear grinding machine / CNC profile grinding machine | HÖFLER-KLINGELNBERG RAPID 1250 | 1 | ø 500 x 800 mm, 35 Mn | 2011 | – |
| Spur gear grinding machine / CNC profile grinding machine | HÖFLER-KLINGELNBERG VIPER 500 | 1 | ø 500 x 1500 mm | 2019 | – |
| Coordinate measuring machine (CMM) | CARL-ZEISS CONTURA-G2 RDS | 1 | ø 668 x 2000 mm | 2006 | – |
| Balancing machine | MESS MATIC SDM 100 | 1 | ø 350 x 1000 mm | 2014 | – |
| CNC cylindrical grinding machine | EMAG KARSTENS K51-1500 | 1 | ø 800 x 2000 mm | 1999 | – |
| Cylindrical grinding machine | FRIEDRICH SCHMALTZ R.668./2000 | 1 | ø 1100 x 800 mm | 1966 | – |
| CNC cylindrical grinding machine | STUDER FAVORITCNC | 1 | ø 600 x 1000 mm | 2018 | – |
| Surface grinding machine | ELB-SCHLIFF SWB 020 VA II-T | 1 | ø 900 x 2000 mm | 1976 | – |
| Bore grinding machine | WOTAN RJ-3 | 1 | ø 550 x 2090 mm | 1960 | – |
| Bore grinding machine | ROWEIG-GLAUCHAU SI 6-1 ALSX500 | 1 | ø 500 x 1000 mm | 2000 | – |
| CNC lathe | DOOSAN PUMA 5100 LB | 1 | ø 410 x 1000 mm | 2016 | – |
| CNC lathe | DOOSAN 4100 LB | 1 | ø 380 x 600 mm | 2017 | – |
| CNC lathe | VICTOR 26/110 | 1 | ø 1050 x 4000 mm | 2005 | – |
| CNC lathe | VICTOR VTURN-26HD | 1 | ø 500 x 2000 mm | 2015 | – |
| CNC lathe | VICTOR VTURN-26E | 1 | ø 2500 x 1600 mm | 2018 | – |
| Universal lathe | TOS SU 100 | 1 | ø 1400 x 1000 mm | 1988 | – |
| Universal lathe | TOS SUI 50 | 1 | 900 x 400 mm | 1984 | – |
| Vertical lathe | STANKO 15255 | 1 | 1000 x 600 x 600 mm | 1981 | – |
| CNC vertical lathe | DOOSAN PUMA VTS 1214 | 1 | 3000 x 1300 x 750 mm | 2016 | – |
| Universal milling machine | WMW FSS400-V | 1 | 2500 x 950 x 850 mm | 1970 | – |
| Vertical machining center | STARWAY VMC-1060 | 1 | 1500 x 1000 x 1000 mm | 2011 | – |
| CNC vertical machining center | SHW UF5 | 1 | ø1200 x 240 mm, Mn 14 spur gear/helical gear | 1990 | – |
| CNC vertical machining center | DOOSAN MYNX 9500 | 1 | ø 1000 x 160 mm | 2017 | – |
| CNC milling machine | MAQUINARIA CME FS-1 275 | 1 | ø 1000 x 160 mm | 2004 | – |
| CNC gear shaping machine | LIEBHERR LSE 1200 | 1 | 70er Kama / 500 Kama Boyu | 2017 | – |
| CNC gear shaping machine | LIEBHERR SJ7/1000 | 1 | 70er Kama / 500 Kama Boyu | 1968 | – |
| Gear shaping machine | LORENZ SNJ 5 | 1 | ø 400 x 1200 mm, internal gearing | 1970 | – |
| Gear shaping machine | LORENZ LSE 500 E (SN: FN 7505) | 1 | ø 600 x 200 mm | 2025 | – |
| CNC vertical slotting machine | LEISTRITZ POLYMAT 70/500 | 1 | 40 KW | 2015 | – |
| CNC vertical slotting machine | LEISTRITZ POLYMAT 70/500 | 1 | 3200 x 2600 x 1500 mm - 650°C | 1996 | – |
| Vertical slotting machine | RAVENSBURG SL 500 | 1 | 50 KW | 1982 | – |
| Vertical slotting machine | BATLER B1 | 1 | ø 2000 x 24 Mn | 1979 | – |
| High-frequency induction hardening system | – | 1 | – | – | – |
Additional services
Quality
Since 2004 the company has operated according to the ISO 9001 quality management system. The inspection equipment includes 3D coordinate measuring machines (Zeiss, 1.7 µm; Faro, ±0.026 mm), hardness testing, ultrasonic testing, spectral analysis, surface roughness testing, magnetic particle testing and gear testing.
| Evidence | Langenfeld (Rhineland) |
|---|---|
| ISO 9001 |
History
- 1981
Foundation of the company
- 2004
Introduction of the ISO 9001 quality management system
- 2019
Opening of the additional company site in Langenfeld (Rhineland) for order intake, delivery, planning and warehousing
- 2021
Investment in LIEBHERR LC 800 CNC profile grinding machine (ø 2600 x 1500 mm, 50 Mn)
- 2022
Investment in LIEBHERR LC 2000 CNC gear hobbing machine
- 2025
Investments in LIEBHERR LC 500 CNC gear hobbing machine and LORENZ LSE 500 E gear shaping machine