Onshore wind tower & foundation manufacturing

Welding automation solutions for onshore wind energy


Innovative solutions for improved productivity and quality

PEMA solutions for the onshore wind energy industry are designed for the effective manufacturing of heavy steel structures for onshore wind towers and wind tower foundations.

Doorframe Cutting & Welding

Robotized solution for fast and accurate cutting & welding

Cutting and welding of a door frame is a phase that significantly slows down the production. The process requires a lot of welding hours, plus the work is demanding for the welders.

The robotized solution enables extremely fast and accurate cutting and welding. The process is based on WeldControl 300 Create and Scan software, which makes it fast to program and easy to control.

Optimal production in cutting, assembling, and welding is reached with PEMA’s patented welding automation system controlled by WeldControl 300 Scan.

  • Automatic tool changer
  • Special rotator for sections
  • Transport and lifting tool


Section handling & surface treatment

In-floor transportation, the need for heavy and sometimes risky lifts is minimized, and efficient transport between separate fabrication shops is facilitated.

During quality control, the use of PEMA control roller beds is recommended to ensure easy and safe handling of shells or tower sections. A wide range of sizes is available to suit all loading needs.

  • Easy and safe handling
  • Movements on the shop floor – no cranes
  • Wide range of for all loading needs

Transporting shells and sections

If the factory shop floor overhead crane capacity is limited, PEMA TC side transportation carriage system can be added to keep the movements on the floor level.

With systems like rail-guided roller beds and sideway carriages, PEMA is able to provide the equipment for transporting workpieces through production lines in the most efficient way.

Section welding

Safe and efficient welding with PEMA C&B and roller beds integration

When the PEMA Assembly station is integrated with the modern PEMA Column & Boom, the system is able to join and fully weld circular seams of an onshore tower.

It is based on a user-friendly, self-aligning roller bed technology and can be used with tubular and conical sections.

An essential part of efficiency and safety in heavy welding jobs is that your material handling, welding manipulator, and welding power sources work hand-in-hand.

PEMA integrates fully all of these machines under the same user-friendly controller PEMA WeldControl 100.


Flexible multi-tool for welding automation works

  • Production monitoring for increased efficiency
  • Integrated WPS bank weld
  • Work tracking for higher quality

All controls in one place

  • Column & boom
  • Welding
  • Roller bed/positioner
  • Seam tracking


Decrease fit-up and tacking time by up to 50%

With PEMA onshore shell fabrication solutions, you can dramatically decrease the welding time during production. Special functions have been designed to make the workflow even more easily.

PEMA tower assembly station and a small section assembly station can decrease fit-up and tacking time by up to 50%.

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

PEMA Assembly station

PEMA Assembly station is a unique concept in the market.

It is based on the self-aligning rollers, fixed jig unit, and a “growing line” function.

These together with technical knowledge and experience are showing a completely new way of thinking in assembling shells into full sections.

Read what our WIND ENERGY customers say

Success stories

We are committed to providing the best solution with superior quality

PEMA welding solutions for the wind energy sector provide the highest safety and welding efficiency at work, with 50 years of experience in the field.

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