Development, manufacturing and testing of wind main gearboxes and drive components for wind turbines
DHHI Germany GmbH
BochumNew on Amplifa
About DHHI Germany GmbH
DHHI Germany GmbH is the German subsidiary of Dalian Huarui Heavy Industry Group Co., Ltd. (DHHI), headquartered in Dalian, China. From Bochum, the company develops, manufactures and tests wind turbine gearboxes in all power classes, with the typical range extending from 3MW to 12MW. In addition to main gearboxes, the product portfolio includes pitch and yaw drives as well as components such as rotor hubs, main frames, hydraulic systems, brakes, cooling systems, controllers and converters. DHHI Germany GmbH serves as the interface between European customers and the Chinese headquarters, supporting products technically and commercially throughout their entire life cycle. As a development partner for wind turbine manufacturers and design offices, modern software tools and proprietary simulation methods are used to analyse and optimise the operating behaviour of the entire drivetrain. The DHHI Group is one of the largest component suppliers in the wind power sector worldwide and also manufactures highly demanding castings and forgings.
- Site
- Bochum
- Processes
- Development and manufacturing of wind main gearboxes (3MW–12MW), Rotor blade adjustment drives (pitch drives), Ring gears and drives for tower rotation (yaw drives), Testing of wind main gearboxes, Manufacture of highly demanding castings and forgings, Simulation and calculation of the drivetrain (proprietary simulation methods, state-of-the-art, Development and design of wind turbine gearboxes, Adaptation of existing gearbox designs (platform strategy)
- Materials
- Steel, Castings and forgings
- Certificates
- ISO 9001
- Industries
- Wind energy, Renewable energies, Wind energy / Renewable energies
- 01
Engineering and design
- 02
Simulation and calculation of the drivetrain
- 03
Manufacturing (group, China)
- 04
Testing of wind main gearboxes
- 05
Technical and commercial support throughout the product life cycle
Materials and Processes
Steel
Material for wind main gearboxes in power classes from 3MW to 12MW.
Castings and forgings
Highly demanding castings and forgings as a growth area of the DHHI Group.
Locations
Bochum
DECompany headquarters: development, sales and interface to the Chinese headquarters
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and manufacturing of wind main gearboxes (3MW–12MW)Engineering | – | – | – | – | Steel |
| Rotor blade adjustment drives (pitch drives)Assembly | – | – | – | – | – |
| Ring gears and drives for tower rotation (yaw drives)Assembly | – | – | – | – | – |
| Testing of wind main gearboxesTesting | – | – | – | – | – |
| Manufacture of highly demanding castings and forgingsCasting | – | – | – | – | – |
| Simulation and calculation of the drivetrain (proprietary simulation methods, state-of-the-artEngineering | – | – | – | – | – |
Additional services
Quality
Wind main gearboxes are developed, manufactured and tested by the company itself; the technical support extends across the entire product life cycle.
| Evidence | Bochum |
|---|---|
| ISO 9001 |
Background
The parent company Dalian Huarui Heavy Industry Group (DHHI) in Dalian/China looks back on a company history of around 100 years and is one of the largest component suppliers in the wind power sector worldwide.