Reliable and modern equipment and solutions
PEMA welding and production automation for offshore and process industry
Pressure vessel manufacturing. Pipe manufacturing. Valve manufacturing. Offshore platform manufacturing.
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 offshore & process
Pressure Vessel Manufacturing
Specially designed solutions for pressure vessel manufacturing ensure efficiency and quality
PEMA solutions cover all welding and material handling needs during these phases.
Effective vessel production requires rigid rollerbeds and welding Column & Booms or welding platforms combined with modern software solutions. Efficient material transportation without unnecessary crane activities is ensured with transfer cars. We have everything you need for modern pressure vessel manufacturing from single units to all-inclusive production lines.
Pressure Vessel Manufacturing
Solutions for extremely thick plates
PEMA is specialized in handling and welding of thick and heavy workpieces. Modern way to approach thick materials is using semi-narrow gap grooves and long-stick-out SAW process for welding. This method is highly suitable for exceptionally thick plates, typically 50-150 mm.
A narrow, preformed tulip-shape 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.For automated adaptive welding of thick materials with long-stick-out process you need the most advanced software to keep the process under control. Our solutions for your needs is PEMA WeldControl 500 software with adaptive functions.
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.
PEMA has everything you need to start- or improve manufacturing process of heavy pressure vessels. Besides of welding solutions we have also heavy duty milling machines for groove preparation.
Solutions for thin plates
We have also proved manufacturing solutions for thin and shiny materials highly suitable for food, brevery and chemical industry customers. Typical plate thicknesses vary from 2 to 25 mm and materials from stainless steels to duplexes.
The welding process is always selected case by case together with the customer, with focus on the actual need and costs.
Options for welding of thin plates: MIG/MAG, TIG, plasma and laser solutions.
Integrated circular milling
PEMA welding platform
C&B and Assembly station integration
PEMA Nozzle Welding: A flexible solution
PEMA Nozzle Welding Station: Versatility for pressure vessels
Flexibility with PEMA nozzle welding
PEMA Nozzle welding solution is versatile. With our PEMA Nozzle welding solution, you are not limited to weld only nozzle connections. In addition to that, you can also weld circular and longitudinal seams, support legs, and other external components.
PEMA Nozzle Welding
PEMA Nozzle Welding Station: Robotized solution for pressure vessels
Pressure vessel manufacturing: robotic nozzle welding
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 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 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 rate and saves manual welding hours typically required for a time-consuming and demanding multi-layer welding procedure.
Reduced defect rate
Integrated welding and cladding
Pressure vessel manufacturing: dish end production
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
Dramatically reduces welding time and improves quality
Pressure vessel manufacturing: shell fabrication & assembly
Special functions have been designed to make the workflow even more easily. PEM Assembly and welding station can decrease fit-up and tacking time dramatically: 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
- 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 heavy welding
Pressure vessel manufacturing: milling
It increases production efficiency, saves welding time and significantly improves the welding quality.
Circular Seam Preparation and Root Opening
Boost your pipe production
Pipe manufacturing: special pipe fabrication
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 in 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
Automate the demanding pipe manufacturing phases
Pipe manufacturing: pipe component fabrication
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 as for external welding operating in integration with PEMA Positioners.
In synchrony with PEMA material handling
Internal pipe elbow welding
Wide range of automated solutions
Offshore platform manufacturing
PEMA automated solutions for offshore platform manufacturing include:
- Plate joining
- Beam assembly and tack welding
- Robotic welding for beams and stiffeners
- Material handling solutions
Efficient heavy-duty welding
Heavy-duty welding that valve manufacturing requires can be efficiently made with PEMA solutions. Internal and external welding of circumferential joints can be done automatically so that repeatable high-quality is guaranteed.
Robotic valve welding
For the higher level of automation robots can be used for welding.
With heavy-duty adaptive welding it is possible to compensate the variations in the welding groove. Weld pass sequence is always executed according to actual real-life welding groove as the groove is laser scanned before welding
Half a century of excellence
PEMA automated welding solutions
With 50 years of experience, Pemamek manufactures various automated solutions for the needs of offshore and process equipments industry:
- Welding positioners
- Welding Column&Booms
- Welding roller beds
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