
Development and manufacture of custom special gearboxes for crane construction, conveying technology and bulk handling systems

Emil Kreiskott GmbH Maschinenfabrik
WuppertalNew on Amplifa
Special gearboxes since 1932
Emil Kreiskott GmbH Maschinenfabrik develops and manufactures custom special gearboxes for use in crane systems, bulk handling and conveying technology as well as steel mill technology. The portfolio includes bucket wheel gearboxes, grab hoisting and closing gear gearboxes, hoisting gearboxes as spur-planet gearboxes, crab travel gearboxes as well as slewing gear and bucket elevator gearboxes for ship loading and unloading systems. The gearbox housings are produced as stress-relief annealed steel welded constructions; in addition, open-die forged drum shafts are manufactured. Alongside gearbox production, the company has been producing electric motors since 1947 and, as Cococo, also contract manufacturing of precision gears. Around 30 employees cover the entire process from design and manufacturing to assembly and final inspection at the Wuppertal site. Customers include steelworks such as ThyssenKrupp Steel Brazil and Hadeed in Saudi Arabia.
- Site
- Wuppertal
- Processes
- Special gearbox manufacturing (custom gearbox production for crane and conveying technology), Precision gear manufacturing, Contract manufacturing, Electric motor production (since 1947), Bucket wheel gearboxes for bulk material handling, Grab hoisting and closing gear gearboxes (spur gear shaft-mounted gearboxes for crane systems), Hoisting gearboxes (spur-planet gearboxes in three-point mounting, steel welded construction), (Bevel) spur gear shaft-mounted gearboxes for container cranes
- Materials
- Steel, Open-die forging, Stress-relief annealing, Machining / precision gear manufacturing
- Certificates
- ISO 9001
- Founded
- 1932
- Employees
- 30
- Industries
- Crane construction, Bulk handling and conveying technology, Steel mill technology, Steel industry, Dredging technology, Ship loading and unloading systems
- 01
Consultation and enquiry clarification
- 02
Design
- 03
Steel welded construction and open-die forging
- 04
Stress-relief annealing
- 05
Machining and gear manufacturing
- 06
Assembly incl. electric motors
- 07
Final inspection and quality testing
Materials and processes
Steel
Steel welded constructions for gearbox housings, brackets and pedestal bearings in crane and bulk handling systems.
Open-die forging
Open-die forged drum shafts for highly stressed gearboxes in bulk material handling.
Stress-relief annealing
Stress-relief annealed steel welded constructions ensure dimensional accuracy of the gearbox housings.
Machining / precision gear manufacturing
Core of the original contract manufacturing, basis for all gearbox assemblies.
Locations
Wuppertal
DEHeadquarters, design, manufacturing and assembly
- Lot size
- Single pieces and custom-made products
- Materials
- Steel
Gearboxes and components



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Special gearbox manufacturing (custom gearbox production for crane and conveying technology)Engineering | – | – | – | – | Steel |
| Precision gear manufacturingMachining | – | – | – | – | – |
| Contract manufacturingJoining | – | – | – | – | – |
| Electric motor production (since 1947)Assembly | – | – | – | – | – |
| Bucket wheel gearboxes for bulk material handlingEngineering | – | – | – | – | – |
| Grab hoisting and closing gear gearboxes (spur gear shaft-mounted gearboxes for crane systems)Engineering | – | – | – | – | Steel |
| Hoisting gearboxes (spur-planet gearboxes in three-point mounting, steel welded construction)Engineering | – | – | – | – | Steel |
| (Bevel) spur gear shaft-mounted gearboxes for container cranesEngineering | – | – | – | – | – |
| Crab travel gearboxes (vertical spur gearbox)Engineering | – | – | – | – | – |
| Slewing gearboxes for CONTI ship unloaders (bevel-spur-planet gearboxes)Engineering | – | – | – | – | Steel |
| Bucket elevator gearboxes for CONTI ship unloaders (bevel-planet gearboxes)Engineering | – | – | – | – | – |
| Boom retraction gearboxes for ship loaders (bevel-planet gearboxes)Engineering | – | – | – | – | – |
| Open-die forging (open-die forged drum shaft)Forming | – | – | – | – | Steel |
| Stress-relief annealing of steel welded constructionsHeat treatment | – | – | – | – | Steel |
| Welded construction (steel)Joining | – | – | – | – | Steel |
Additional services
Reference customers
Quality
Strict quality standards and comprehensive final inspections are applied in all production stages in accordance with DIN ISO 9001 to ensure reliable gearbox operation in continuous duty.
| Evidence | Wuppertal |
|---|---|
| ISO 9001 |
History
- 1932
Emil Kreiskott founds the company in Wuppertal-Barmen as a contract manufacturer of precision gears
- 1947
Start of electric motor production
Today led as a family-owned business in its third generation