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Subcontracting of welding services for heavy machinery

Semi-automated welding

Both automatic and manual welding have their advantages. Semi-automatic welding combines the best features of these techniques. It has a robot's precision, quality and superhuman reach while still working under the command of its human operator's intelligence. The operator monitors the process and can make necessary corrections to the welding parameters immediately when required by the environment.

Parts with weld lengths up to 90 000 mm can be welded by our array of welding manipulators due to their rail travel system. The parts can also be rotated with rollers. The manipulators have an extensive range of 4000 mm vertical and 6000 mm horizontal stroke. Kumera has manipulators for GMAW, Gas Metal Arc Welding (MIG and MAG), and SAW Submerged Arc Welding. In order to reach the highest possible quality in welding pipes and other tubular pieces, we utilize state-of-the-art orbital welding equipment. In orbital welding a TIG electrode rotates around, or orbits, the welded object continually. Heavy structures welded of various steel materials are our core activity. Product specialization in rotary equipment, machine housings, and components for various industries.


  • Holding an ASME U (American Society of Mechanical Engineers Quality Standard) Stamp, which allows pressure vessel deliveries to the United States and Canada among many other countries.
  • Capable of PED (Pressure Equipment Directive (97/23/EC)) pressure equipment deliveries in the European Community in accordance with the module G (EC unit verification).
  • Capable of working under the rules and surveillance of maritime classification societies.
  • Certified to comply with the requirements of ISO 9001 Quality Management Systems, ISO 3834-2 Quality Requirements for fusion welding of metallic materials and ISO 14001 Environmental Management Systems.

Kumera Corporation, Kumerankatu 2 FI-11100 Riihimäki, Finland Tel. +358 20 7554 200[email protected] Legal Notice / Privacy / Code of Conduct