Mobile pipe welding complex MKST

The complex provides automatic welding of non-rotating joints of pipelines based on the following technological approaches:

• the accuracy of the joint assembly due to the overflow of the edges and assembly on a self-propelled hydraulic centralizer with a «zero» gap;
• comfort and welding quality thanks to the programming of welding modes by joint sectors;
• the use of a continuous section wire ∅1.2 mm, CO₂ and a standard Ar/CO₂ welding mixture (80/20) for welding all seam layers;
• increased productivity by:
  • reducing the volume of cutting the joint;
  • using welding wire ∅1.2 mm;
  • high-speed welding of the root layer of the seam on the copper lining ring;
  • combining the operations of heating the joint and welding the root passage in one tent;
  • moving the centralizer to the next joint immediately after welding the root passage.

The ICST complex includes:

• machine for machining pipe edges inner centralizer with copper lining ring installation of induction heating of the joint PPCH50-10;
• the unit is a self-propelled welding MKST-34, based on a MOROOKA tractor, with a manipulator, a kung, a diesel power plant. The number of units in the complex is determined by the required welding rate, depending on the thickness of the pipe wall;
• welding equipment - UAST-1 «Alpha» automatic welding heads with DC400.33M sources (2 pcs), DC400.33M source for manual arc welding (1 pc), DC400.33M backup source (1 pc.);
• protective tents;
• mobile workshop for setting up, repairing equipment and storing spare parts.