Offshore and process industry equipment

PEMA welding and production automation for offshore and process industry

Maintaining a competitive edge in the offshore and process industry requires high-quality, automated welding and production solutions

PEMA solutions are developed to safely and efficiently handle heavy steel structures and unconventional alleys used in the production of, for example, pressure vessels and nuclear reactors.

PEMA welding and production automation systems for oil & gas process


Shell Fabrication and Assembly

With PEMA shell fabrication solutions, you can dramatically decrease the welding time during your production

Special functions have been designed to make the work flow even more easily. PEMA Assembly and welding station can decrease fit-up and tacking time up to 50%: it is based on the self-aligning rollers, fixed jig unit, and a “growing line” function.

Special functions to increase efficiency

  • Multi-arc SAW welding with automated functions
  • Conical shell tilting
  • Fully auto-adjustable special PU rollers
  • Fast rotation from internal to external welding in long
    seam welding
  • Integrated grounding
  • Wireless control
  • Extremely fast fit-up with assembly line developed
    specifically for wind tower assembly

Milling of longitudinal seams

Longitudinal seam welding station

PEMA Assembly station


Milling is crucial for all sectors that have heavy welding in their production

It increases production efficiency, saves welding time and significantly improves the welding quality.

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Circular Seam Preparation and Root Opening

Special Pipe Fabrication

Boost Your Pipe Production

Your pipe production gets a boost in productivity when PEMA’s rollerbeds, welding C&B, welding automation systems and engineering solutions are utilized.

Longitudinal pipe sections can be welded outside by our Multi-Arc SAW portals and inside by our long reach welding booms.

Longitudinal and circumferential welding

We have dedicated welding automation solutions for longitudinal welding of tubular pipes, pipe-to-pipe, elbow-to-pipe, and flange to pipe connections.

 Our positioners and welding column & boom solutions combined with special welding automation can be selected from our wide range of standard modular product families.

Various welding processes such as GMAW or GTAW for root pass
welding and Multi-Arc SAW welding for filling up are integrated into our pipe fabrication equipment.

Efficient welding head and motorized slide modules have been developed to fulfill the technological needs that are required to automate the welding of different size geometries and designs.

You can choose from a wide range of PEMA positioners and the appropriate model and machine can be equipped with custom-made clamping devices.

External and longitudinal pipe welding

Large and small diameters

Combined welding processes

Pipe Component Fabrication

Pipe component fabrication is one of the most demanding pipe manufacturing phases

When implemented well, the process is fast and brings immediate results in production capacity and end quality.

Fast process, immediate results

The offering of automated PEMA welding and production solutions cover welding heavy and thick walls in pipe elbows and assemblies, such as valve frame welding.

Our experts optimize the right handling equipment and welding Column & Boom from our extensive selection of modular product families.

Various welding processes such as GMAW or GTAW for root pass welding and Multi-Arc SAW welding for filling up are integrated into our pipe fabrication equipment.

A specific range of Column & Booms are designed for internal welding of pipe elbow segments as well for external welding
operating in integration with PEMA Positioners.

In synchrony with PEMA material handling

Internal pipe elbow welding

Valve welding

Dish End Production

Integrated welding and cladding

Integrated welding and cladding processes are combined to our Column & Boom and together with the interpolated movement these processes are available for both internal and external surfaces.

The extremely demanding quality requirements of manufactured
pressure vessels are achieved by using high-quality production
equipment to ensure a stable and fully controlled welding process.

PEMA has extensive knowledge in building high-precision, large
scale machinery with up to 250 tons of positioners and numerically controlled column & booms and welding platforms, and fully integrating modern digitally controlled Submerged Arc Welding equipment.

These integrated solutions create a combination that ensures an increase in productivity, solid quality and uncompromised safety.

Integrating a Multi-Arc SAW carriage and positioner in an advanced control system, i.e. the interpolation of the welding head and positioning the dish end, allows the welding of semi-elliptical dish ends and hemispherical heads to be automated. Real time control of the welding orientation and welding speed is something unique we have developed as a solution for our customers in the industry.

Welding and cladding

Heavy duty positioners

Solutions designed for dish end fabrication

Pressure Vessel Production

Specially designed solutions for vessel manufacturing ensures efficiency and quality throughout the production line

PEMA solutions cover all welding and material handling needs during these phases.

Highest safety

Heavy vessel production automation requires rigid rollerbeds and
large size welding Column & Booms or welding platforms. The
semi-narrow gap SAW technique is used on welding exceptionally
thick plate, typically 2-6 inches.

A narrow, preformed welding groove reduces the seam volume and decreases the amount of fillet material needed. On the other hand, producing a quality seam is a process that places extraordinary demands on a production facility.

PEMA’s 100- 1200-ton rollerbeds are designed to meet the special
needs of semi-narrow gap welding. In semi-narrow gap welding, the vessel must be rotated with extreme precision, with no axial movement, even over the longest period of time. For this reason,
PEMA’s large rollerbeds come with an automatic hydraulic anti-creep function to prevent axial movement.

Integrated circular milling

PEMA welding platform

C&B and assembly station integration

PEMA Nozzle Welding

Nozzle Welding Station

Solution for pressure vessels.

PEMA Nozzle welding station for pressure vessels automates the nozzle welding process. The station is an optimal solution for heavy-duty workpieces.

Thanks to its hi-tech features, the system allows the automatic creation of robotic welding programs, based on laser-scanned groove geometry.

PEMA Nozzle welding station is an optimal solution for heavy-duty workpieces. The solution allows the automatic creation of robotic welding programs, based on laser-scanned groove geometry. PEMA Nozzle welding station has a quick ramp-up period.

Automated multi-layer welding results in visibly improved welding quality and reduced defect rate. Furthermore, automation reduces defect rates and saves manual welding hours typically required for a time-consuming and demanding multi-layer welding procedure.

Automated programming

Adaptive welding

Reduced defect rate

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