Assembly and welding

Welded structures manufactured:

• stator frames,
• bottom and top trusses,
• rotors,
• pressure segments,
• end shields,
• fans

We undertake welding processes using the following methods:

• 135: MAG–semi-automatic with active gas shielding,
• 141: TIG–tungsten electrode in inert gas,
• 111: MMA–manual arc with coated electrodes.

Our welding shop is equipped with:

• cranes with hoisting capacity up to 32 ton,
• cranes with hoisting capacity up to 100 ton,
• workshop cranes with lifting capacity up to 1 ton,
• a travelling mobile platform with maximum working height up to 6 m.

Overall dimensions of the welded structures:

• max. dimension of a single unit: 12 m x 4.1 m x 3.7 m - max. weight: 32 ton,
• max. dimension of a single unit: 12 m x 6.2 m x 4.0 m - max. weight: 100 ton,
• max. dimension of welded construction after assembly 16 m x 16 m x 6 m - max. weight: 100 ton.

We possess the following welding certificates:

• quality requirements for welded metal materials according to EN ISO 3834-2,
• authorizing welding of structural steel components to EN 1090-2 class EXC4.

Wypalanie:

• 2 Messer acetylene cutting machines: 
  
  • thickness range: from 2 to 300 mm
  • bench size: 3500 x 12000 mm

Metal sheet rolling on rollers:

• B-9 and B-28 rollers
  
  • maximum sheet metal thickness: 10–25 mm
  • maximum sheet metal width: 2000–3000 mm
  • minimum coiling diameter: 270–600 mm.

Vibration stabilization

As part of the removal of welding stresses process, we offer a vibration stabilization process. This is a cost-effective alternative to heat treatment. We have a self-calibrating vibrating device which automatically generates a stabilization report. We can vibrate structures ranging from 0.1 to 40 tones.