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For our production, we prepare workshop and technological drawings excluded directly from the clients’ construction and working design or from our own development. We adapt our documentation to technological possibilities, machine park and software used for production in our company and in cooperation.

Our workshop and technological documentations include:

  • Drawings of individual elements;
  • Drawings of prefabricated and shipping items;
  • Assembly Drawings and a 3D model;
  • Files for CNC machine tools in DWG & NC format;
  • Lists of materials;
  • Shipping item lists;
  • Single item lists;
  • Bolt lists;
  • Anchor plate lists;
  • Inspection and test plans;
  • Welding plans;
  • Weld summary lists;
  • Protocols of non-destructive and destructive testing;
  • Declarations of conformity;
  • Protocols of anti-corrosion protection.

In reference to large-size constructions and pressure tanks, the workshop and technological documentation may additionally include:

  • Stress test procedures;
  • Drop test procedures;
  • Determination of the centers of gravity;
  • Determination of the attachment points of slings;
  • Preparation of the traverse substructure and lifting procedures;
  • Pressure testing procedures.

We also prepare detailed guidelines for workshop designs of steel constructions intended for hot-dip galvanization, in which the profiles used should include the necessary openings for zinc overflow.

BIM technology

As part of BIM technology, we try to help our clients in the use of 3D software. We facilitate the installation of multi-dimensional structures on our steel constructions. Often combining the electrical, hydraulic, automatics and pneumatics industries.

We encourage investors who implement steel structures to make an inventory of the facility using our 3D scanning devices before starting the project.

Thanks to the use of BIM software from the beginning of the design process, the price of a steel structure workshop design at the stage of a construction design or detailed design can be very attractive.

Check our executed projects

Measurement at construction site and 3D scanning


Object modeling and FEM analysis


3D visualization

Spot-On Welding Sp. z o.o.
3 Krzyżowa Street 40-111 Katowice

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