Our Services for Business Customers

Our experience and high quality standards make us your long-term partner.

More than 30 years ago we started in the mechanical and plant engineering for the automotive industry. These first business connections still exist today! This industry required the quality standard that later allowed us the establishment in other industrial branches.

We serve our customers with great knowledge and experience  from various projects in different industrial branches. Each type of production requires further developmental training which results in continuous quality improvement for our company.

Mechanical & Plant Engineering

We are supporting our customers with expertise ranging from the design and planning over part productions to plant production and initial operation. We also offer customized service and maintenance through our professional staff.


Plant Engineering

As long-term business partner to several well-known companies in the production and assembly of plant engineering we are your reliable partner in the area of secondary steel construction as well as primary steel construction.

Our references include large-scale projects such as the construction of the garbage incineration plants in Ludwigslust and Frankfurt, as well as service, maintenance and reconstruction in the automotive industry, petro chemistry and power plants.

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Mechanical Engineering

We are well familiarized with the EC Directive 98/37/EEC (machine directive). Combined with our welding certificate EN 1090-2 (EXC3) we are, therefore, able to offer complex assemblies or all-in-one solutions. Our experience ranges from heavy lifting gear over heavy duty frames for complete nacelles from wind turbines  to electronically powered turntables for cable storage. Documentation and CE-conformity is something we do as a matter of course.

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Wind- & Offshore Industry

There is no progress without motion!

From prototype manufacturing of single items for wind power plants to complete mobilization of a cable-laying barges, steel is the element that connects all of our work scope.



By request our flying service reaches you at every German port or the neighboring states. Flexibility and willingness is our trademark. Our welding certificate EN 1090-2 provides the basis for the recognition of all IACS classifications. We are your reliable partner for repairs on board, supply of materials or complete vessel mobilization and demobilization. Together with our strong partners we support you from the first concept design up to detailed engineering and give advice and support for your vessel classification processes.

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Wind Industry

The wind industry has become a very important regional economic factor. Right from the beginning we shared our experiences from the prototype- production with our customers. Our portfolio includes from very small parts as wind sensor foundations, gondola frame assembly and heavy duty traverse assembly on- and offshore.

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Industrial & Hall Construction

In the area of hall construction we can look back at 30 years of experience, including carports, equipment sheds, unsupported riding halls, machine halls, composting halls with concrete barriers and composting facilities. In industrial construction we are just as multi-faceted including the integration of interlinked processes, manlifts and travel- and stairway paths.


Industrial Construction

In this sector we are serving our customers in new construction, production adjustment and expansion.

One example is the construction of the garbage incineration plants in Ludwigslust and Frankfurt with a total construction period of up to 2 years. Our services range from general steel construction, integration of production chains, hall connections, travel paths and stairways to the complete equipment of collision protection systems in the production areas as well as the loading areas. We are able to successfully integrate modular systems into a hall without production downtime.

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Hall Construction

Our range of services in hall construction start with bicycle stands, carports or equipment sheds. In the agricultural sector we are covering cattle halls, machine halls and unsupported riding halls. With our competent partners we are also able to manufacture multipurpose halls, cold storage and industrial halls with combined office and commercial space including all additional construction and licensing.

Furthermore, we are just as powerful in professional renovation and expansion of existing construction.

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Metal Engineering & Services

Schlosserarbeiten & Services

Our modern workshop offers a wide range of services and prefabrication of steel construction.

We guarantee a high quality standard and complete documentation, counting on our qualified employees, who are continuously being trained and prepared for new projects.

We offer fast and reliable service that you can count on. We also take on maintenance and service requests for plants and manufacturing processes.

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We are certified

Our certificates:

Stahlbau Oltmanns

Oltmanns – Your Partner for Challenging Steel Construction Projects

Please, take us at our word by challenging us with ambitious tasks and placing trust in our competency and customer oriented thinking!

No matter in whether kind of specification, if for steel services on multipurpose Vessels, Cable or Pipe Layers, the Off Shore Branch, the Wind Power Industry, Bridge Building and also highly competent at building halls as well our high professionalism for special engineering construction regarding all required Standards and European Rules for Steel and Machine Construction!

Oltmanns GmbH

Schlosserei & Stahlbau
Amboßstraße 2
26632 Ihlow/Riepe

Phone: +49 4928 91530
Telefax: +49 4928 915350

E-Mail: info@stahlbau-oltmanns.de

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