3D scanning multipass welding with Adaptive Intelligence

WeldLogic Technology

WeldLogic offers the feature of welding multipass welding automatically, taking tolerances of the weldgroove into consideration and automatically compensating for variations. After an intensive development period, Inrotech launched in 2016 the WeldLogic technology as a complementation to SensLogic. 

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The first systems were installed for the welding of the longitudinal joints in windtower sections. 
Based on a scanning of the weldgroove, the system automatically plans the full welding process: number of passes, location of each pass and the appropriate welding parameters, given the allowed heat-input window, the groove geometry and the welding position. Weldlogic today can be used for the welding of almost any weld groove design and in any position.—as long as there is physical access for the robot.

High level of automation

One operator, multiple systems

Intuitive user-interface


The main advantage of Weldlogic is the fully automatic filling up of butt weld grooves in heavy gauge material. The system excels by:

  • No programming
  • No transfer of CAD drawings
  • No back-end engineers required
  • Simple green/red button simplicity: green for start, red for stop.


All depending on the design of the Inrotech welding robot in question, the robot must be positioned in a correct working position. 

As the robots are not depending on any accurate global coordinate system, but rather is taking reference point in the object itself, no accurate positioning is required: The robot will figure it out by itself! Groove design and position, welding wire type etc. may be selected on the intuitive touch panel.
The scanning of the weldgroove and planning of the welding process is done automatically.


An important part of a project is to verify by testing all relevant process parameters such as: Welding wire, shielding gas type, steel type, primer, preparation conditions like gap etc. These process conditions are all important factors of a welding robot project with WeldLogic technology.

These tests are conducted on material supplied by the customer. All basic functions and parameters which are part of the process are tested and run-in at Inrotech’s workshop before the system is delivered to the customer.

Once the system is delivered and set up at the customers site, final optimizing/fine-tuning takes place, while the system is running in production.

We are constantly rethinking both the mechanical concept and our
unique software. This approach enables the use of our robotic
welding solutions in new and previously unseen areas.