Company

Donges SteelTec GmbH

Over 140 years of experience in structural steel engineering, innovative designs and buildings and a highly motivated and competent workforce: Donges SteelTec GmbH in Darmstadt. The range of our company’s business activities includes the planning, development, design, fabrication and assembly of architecturally sophisticated projects in the fields of steel bridge construction, steel structural engineering, as well as industrial facade and turnkey construction, and with its references, it is one of Germany’s market and technology leaders.

The history of the company can be traced back to 1872, when Georg Donges founded a locksmith business. Up until 2008, Donges was a family-run business. From 2008 to 2017, Donges belonged to the globally active Japanese Group, Mitsubishi Hitachi Power Systems.

Since October 2017, Donges has been part of the Munich-based Mutares Group. The acquisition of Kalzip in Koblenz (July 2018), Normek OY in Finland (February 2019) and FDT Flachdach Technologie in Mannheim (March 2019) marks the repositioning of the Donges Group as a specialist supplier of steel bridges, steel structures, roof and wall solutions on the European market.

Donges is continuously adapted to the requirements of modern technology and has a production facility at its headquarters in Darmstadt with its own workshops on asite of 65,000 square-meters. With 200 highly-qualified, experienced employees, we offer our customers services involving all aspects of construction projects from a single source, from project planning, structural engineering and design, right down to fabrication and assembly. The annual production capacity at the Darmstadt plant is approx. 20,000 metric tons.

The technical expertise and experience of our company is manifest in the completion of many major projects and outstanding buildings such as the curved steel structures of the Berlin Central Station, the Porsche Museum in Stuttgart, the Stuttgart exhibition center’s multi-level parking garage, the Wesel Rhine Bridge, the Schönebeck Elbe Bridge, the stadium roof of the Rhein Neckar Arena (TSG 1899 Hoffenheim), the coal-fired power plants in Wilhelmshaven, Rotterdam, as well as in Kusile and Medupi in South Africa, or the launch table and umbilical mast of the ARIANE 6 launch site in Kourou, French Guiana.

If you would like to learn more about the history of Donges, you can read more about it here.

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Donges Group – Connecting.Solutions.Successfully.

The Donges Group is a leading full-line supplier of bridge and steel construction as well as roof and facade systems in Western and Northern Europe. The company belongs to the Mutares Group and represents a significant investment in the Engineering & Technology segment.

After a successful repositioning, strong organic growth and five strategic acquisitions in the last eighteen months, the Donges Group with its 1400 employees expects a cumulative total annual turnover of around EUR 400 million. The Group has locations in 14 countries.

With its brands Donges SteelTec, Kalzip, Normek, FDT and Norsilk the company successfully offers its customers solutions in the field of steel bridges for road and rail construction, in industrial and individual steel construction as well as roof and facade solutions made of aluminum, glass and high-quality membranes.

“With its flexible international footprint, its strong brands and the extensive product and process know-how of its employees, the Donges Group offers its customers added value that is unique in Europe”. (Johannes Laumann, Group CEO)

If you would like to know more about the Donges Group or its members then visit our website donges-group.com.

Member of the Donges Group:

History and tradition from

1872 – 2018

If you would like to learn more about the history of Donges, you can read more about it here.

History

Contacts

Dipl.-Betriebsw. (FH) University of Applied Sciences
Johannes Laumann

CEO

Donges SteelTec GmbH, Darmstadt

Chief Executive Officer (CEO) since March 2018

Balcke-Dürr GmbH, Düsseldorf

Chief Operation Officer (COO)

Atlas Copco Gas and Process Division, Cologne

Vice President Sourcing and Production

Porsche Consulting GmbH, Bietigheim-Bissingen

Management Consultant

Ernst & Young GmbH, Stuttgart

Audit and Advisory Consultant

Peter Brechtelsbauer

CEO

Permasteelisa Group Middle East, Africa and Asia, Dubai/UAE

Group Chief Executive Officer MENAT

Nijhuis Water Middle East, Africa and Asia, Dubai/UAE

Managing Director – MENA, Afrika, Iran and India

Waagner Biro LLC Middle East, Africa and Asia, Dubai/UAE

Chief Executive Officer –MENAT

Siemens Water, Abu Dhabi/UAE

General Manager/ Geschäftsführer Middle East, Africa and Asia

Huber Technology SE, Berching Germany

CEO/MD MENA Huber Technology, Sharjah/UAE

Huber SE

Head of Business Unit Industry

Huber Petro Technology for Oil & Gas

Managing Director

Stephan Langer (Dipl.-Ing.)

Head of Bridge Construction Division

Donges SteelTec GmbH

Since January 2009, Head of the Bridge Construction Division at Donges SteelTec GmbH and authorized officer

Donges Stahlbau GmbH

Donges Stahlbau GmbH, Darmstadt

Deputy Head of Bridge Construction

Stahlbau Lavis, Offenbach

Project Engineer Bridge Engineering, since 1999 Division Head of Sales Bridge Construction

Studies in Civil Engineering

Engineering construction – at the Darmstadt Technical University, degree Dipl.-Ing., specialization in steel construction

Joachim Hartwich (Dipl.-Ing.)

Division Head of Building Construction and Industrial Construction

Donges SteelTec GmbH

2018 Head of Building Construction Division with Roof and Wall Construction

2011 Department head for steel assembly and construction work by third-party trade contractors

Donges Stahlbau GmbH

1996 Department head of technical purchasing and site management for third-party trade contractors and steel construction deliveries
1994 Senior steel construction management REA Jänschwalde
1990 Project and assembly management for steel construction, roof and facade construction
1986 Structural engineering and technical project management in steel construction

Dipl.-Ing. Degree in Civil Engineering

Braunschweig and Darmstadt

Contacts

Responsible for the areas of

Bridge Construction

Stephan Langer
(Dipl. Ing.)

+49 (0) 06151 889-306

Building Construction and
Industrial Construction

Joachim Hartwich
(Dipl.-Ing.)

+49 (0) 06151 889-217

Facts + Figures

Founding:

1872 to 2007 Donges Stahlbau GmbH, family-run business; 2008 to 10/2017 Donges SteelTec GmbH, member of the Mitsubishi Hitachi Power Systems Group; since 11/2017 part of the Munich-based Mutares Group.
2018 and 2019 Expansion of the product portfolio through the strategic acquisition of the companies Kalzip, Normek OY and FDT.

Employees:

180

Operating performance:

EUR 55 million

Annual tonnage:

max. 20,000 tons

Monthly capacity:

max. 1,700 tons

Inventory of primary material:

max. 6,000 tons

Unit weight and dimensions:

max. 160 tons
Dimensions 50 x 5 x 3 meters

Plant premises:

Total area: 65,500 m²
Covered area: 34,900 m²

Certificates:

DIN EN ISO 9001:2015
DIN EN 1090-1:2009+A1:2011
DIN 18800-7:2008
DIN EN ISO 17660:2006
DBS 918005:2016
DIN EN ISO 3834-2:2006
SCC**Certificate, Version 2011
DSTV (German Steel Construction Association) seal of approval

Transport connections:

Rail and road

Association memberships:

DSTV (German Steel Construction Association)

Hessen Metall (Association of the Metal
and Electrical Companies in the Federal State of Hesse)

VhU (Association of Hessian Business Associations)

Facts + Figures

Donges SteelTec GmbH

EUR 55 million

Operating performance

200

Employees

max. 20,000 tons

Annual tonnage

Machinery and Equipment

40 CAD workstations
RZ-Industriebau, Tekla

1 Steel shot-blasting machine
2 Sawing and drilling lines
1 Punching and shearing line
1 Beam bending machine
2 Milling equipment

2 Submerged arc welding machines
1 Trapezoidal stiffener attachment portal
5 Welding and cutting systems
1 Drilling and welding equipment
2 Post-production shot-blasting sheds
All machines online CNC-controlled
60 overhead, gantry and bracket cranes
from 0.8 t – 80 t for lifting within the plant
1 Section lifting vehicle
156 t payload

Machinery and Equipment

Technology and Innovation

40+

CAD workstations

60+

Overhead, gantry and
bracket cranes

6

Welding stations

Certifications

Approvals and Manufacturer Qualifications

The high standard of our quality and process management provides for a high degree of customer satisfaction, boosts our company’s competitiveness in the steel construction market and leads to the continuous improvement of our internal procedures and processes, in addition to optimizing the use of resources.

DIN EN ISO 9001:2015
Quality management system for “planning, development, design, manufacturing and assembly in power plant construction, steel bridge construction, steel building construction, industrial facade construction and turnkey development”

DIN EN ISO 9001:2015

Download .PDF
DIN EN ISO 3834-2:2006
Proof of welding quality compliance

DIN EN ISO 3834-2:2006

Download .PDF
DIN EN 1090-1:2009+A1:2011
Conformity of factory production control for “structural components and assemblies for steel structures up to EXC4 according to EN 1090-2” for load-bearing structures in all types of buildings

DIN EN 1090-1:2009+A1:2011

Download .PDF
DIN EN 1090-2-2008+A1:2011
Welding certificate for welding steel structures

DIN EN 1090-2:2008+A1:2011

Download .PDF

DBS 918 005
Manufacturer-based product qualification of DB AG for the construction of railway bridges and other engineering structures

DBS 918 005

Download .PDF
DIN EN ISO 17660
Manufacturer qualification for welding reinforcing steel

DIN EN ISO 17660

Download .PDF
SCC**-Managementsystem, Version 2011
International management system for industrial safety, health and environmental protection for “planning, development, design, fabrication and assembly in power plant construction, steel bridge construction, steel building construction, industrial facade construction and turnkey finishing”

SCC**-Managementsystem, Version 2011

Download .PDF
DSTV (German Steel Construction Association)
Seal of approval for steel construction fabrication and assembly

DSTV-Gütesiegel

Download .PDF

02_Schweisszertifikat_EN-1090-2_08_2021_Deutsch-1

02_Zertifikat_DIN_EN_ISO_3834-2_07_2019_Deutsch1-1

03_Eignungsnachweis-Betonstahl_08_2021_Deutsch-1

Certificates

Approvals and Manufacturer Qualifications

Donges SteelTec possesses all manufacturer qualifications required for planning, development, design, fabrication and assembly in steel bridge construction, steel building construction, industrial facade construction and turnkey development.

Company

Contacts

Facts and Figures

Certifications

Donges SteelTec GmbH

Member of the Donges Group:

History and tradition from

Contacts

Dipl.-Betriebsw. (FH) University of Applied Sciences Johannes Laumann

Peter Brechtelsbauer

Stephan Langer (Dipl.-Ing.)

Joachim Hartwich (Dipl.-Ing.)

Contacts

Bridge Construction

Building Construction and Industrial Construction

Facts + Figures

Founding:

Employees:

Operating performance:

Annual tonnage:

Monthly capacity:

Inventory of primary material:

Unit weight and dimensions:

Plant premises:

Certificates:

Transport connections:

Association memberships:

Facts + Figures

Machinery and Equipment

Machinery and Equipment

Certifications

Approvals and Manufacturer Qualifications

Certificates

Dipl.-Betriebsw. (FH) University of Applied Sciences
Johannes Laumann

Building Construction and
Industrial Construction