Retzlaff - Ingenieurbüro für Schweiß-und Schneidtechnik - maritime Technik
RETZLAFF - engineering office
for innovative welding and cutting technology – maritime technology

We are an experienced engineering office offering practice-oriented approaches to develop innovative solutions for welding and cutting of individual parts and assemblies. Therefore, we check the materials and design documents for their welding suitability - before starting production - and recommend the best welding or cutting process and the required equipment technology.

Our main business areas are:

  • Research and development projects of innovative ideas and technologies
  • Underwater welding and underwater cutting technologies
  • Underwater inspections (NDT)
  • Offshore oil and gas pipeline platforms and offshore wind turbines
  • Steel hydraulics construction
  • Metal and steel construction
  • 3D metal printing
  • International project management

 

Reference object 2020 :

Project:
Lindö Port of Odense / Denmark

Customer: 
Züblin A/S – Dk

Process:
Underwater Welding

Work order:
Anchor heads : S355J2 ,   sheet thickness :     50 – 100 mm
Sheet piles AZ 38-700N, S430 GP, sheet thickness : 16 mm

Cooperation Partner:
Nordseetaucher GmbH ( Northsea-Diver)

First work samples underwater welded  with pWPS and VT, MT and Break-Tests: no mistakes
Then with WPS underwater welded and  Underwater-VT with our test-diver: no mistakes

Rückblick 2020 - Phoenix Nautica 20Rückblick 2020 - UW-ZfP-Taucher im Einsatz

On the basis of your inquiries with construction documents or sketches, you will receive offers for projects in Germany and abroad:

  • Advice and support for research and development projects for innovative technologies
  • Support with certifications
  • Training and further education or qualification of personnel
  • Project management

Our main business areas:

  • Offshore oil and gas pipeline platforms and offshore wind turbines
  • Underwater welding and underwater cutting technology, including ROV inspections, monitoring and underwater NDT
  • Steel hydraulics construction
  • Metal and steel construction
  • 3D metal printing
ROVROVROV

A big thank you for the images of the ROV to our partner Fraunhofer-Institut IOSB, Institutsteil Angewandte Systemtechnik-Ilmenau

Funding programs

The funding programs are only for German companies!

New welding process for the underwater repair of steel structures

The new underwater welding process is called: DUW-FSW and means: Deep Under Water Friction Stir Welding in water depths of 20m to at least 50m.

Possible without divers!
Find out more in our presentation, which you can download here.

 

 

 

Retzlaff – engineering office for innovative welding and cutting technology – maritime technology

Dipl.-Ing.(FH) / IWE Gunnar Retzlaff

Hermann-Schmidt-Str. 19
D- 99094 Erfurt

Mobile: +49(0)173 / 60 61 447
E-Mail: schweisstechnik.gr@gmx.de 

Internet: www.schweisstechnik-gr.de

Postal address:

Retzlaff-Ingenieurbüro

Hermann-Schmidt-Str.19

D-99094 Erfurt