Wind- & Offshore Industry

Based on our extensive experience in mechanical- and plant engineering we have become your reliable partner in the wind- and offshore industry. Familiarity with high standards from the petro chemistry combined with our certificates and quality standards have made us a guarantor for our customers.



In the offshore sector we are collaborating with the IACS classification societies. Prior to a new equipment construction, a mobilization or demobilization we are coordinating with classification societies and are ensuring a smooth process and acceptance for our customers.

Our experience is our professionalism and your edge on your competitors! In association with experienced design- and naval offices  we are able to offer our customers either turnkey solutions, or the best solution to reach the project goal with the resources of the customer.

  • Construction of turntables including peripheral equipment such as cable paths and loading arms
  • Vertical injectors and offshore working platform for vessels and barges
  • Cable Jointing Traverse, 600to Heavy Duty Traverse
  • Winches and aggregate foundations including substructure and sea-fastening
  • Boat landing and diving platforms
  • Safety ways and caches in the range of winches and wires aboard
  • Mobilization and demobilization of ships and offshore units
  • Customer support in layout and setup preparation through our own technical engineering office
  • Sectional construction for smaller ships
  • Ship repair in the areas of steel- and pipeline construction

Wind Industry

Our main areas of expertise in the wind industry include:

  • Heavy load platforms for machine buildings, including special loading traverses
  • Spider loading frames for nacelles of wind turbines
  • Components for machine buildings, frames and nacelle entrances
  • Unit foundations in framework construction
  • System components and fitting support for serial production and prototype manufacturing

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


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