Main production stages are as follows
Straightening
Straightening of sheets is performed on flat-rolled product pre-straightening rolls manufactured by Nichimen, Japan. Thickness of sheets is from 6 to 40 mm.
Cleaning and priming
Cleaning and priming of flat-rolled products and sections are performed on two shot-blasting machines manufactured by Fogel and Nichimen. After priming, each sheet is marked with a cutting card number. The equipment capacity enables to perform cleaning and priming of approximately 17,300 sheets and 22,000 sections per year.
Cutting
Cutting of sheet metal components with sheet thickness from 5mm to 24 mm and overall dimensions of 3.2х16m is performed under water using portal plasma cutting machines NUMORREX NXB-4500 and TELEREX TXB-10200. Web stiffener cutting is performed using oxygen cutting machine MESSER GRIESHEIM. Gas cutting machines TELEREX TXA-50 and TELEREX TXA-80 enable to cut sheets having thickness from 25mm to 150mm.
Bending
Bending of flat-rolled products and sections with the biggest sheet width of 16m and thickness of 55mm is performed using Nichimen rolls and applying a press hydraulic force of 350 t, 800 t and 1250 t.
Assembly and welding
Assembly and welding of metal structures are performed employing state-of-the-art equipment ESAB and Kemppi and using high quality welding materials. Automatic submerged arc welding and gas-shielded welding using two types of welding wires are performed by a tractor-type welding machine A2-Multitrac and A6- Mastertrac. Machine welding is performed by means of semi-automatic machines МЕК-20W.
Welding process has been certified by Germanischer Lloyd. The engineers and technical personnel working at the plant have been qualified as the international experts of welding engineering. Welding processes have been developed pursuant to the European and International Standards and Rules, and verified by the International Association of Classification Societies (LR, DNV and РМРС).
The equipment of the assembly and welding shop enables to produce box units with weight up to 200 tons using overhead cranes with lifting capacity from 5 to 125 tons. Enlargement of sections (if required) weighing up to 1500 t and length up to 150 m is performed on near building ways site equipped with 2 overhead cranes (the transportation of units having weight up to 600 tons is possible in the dual mode).
Cleaning and painting
Cleaning and painting are performed in a tunnel type spray paint booth with the overall dimensions of 24 х 120 m. The booth is equipped with cleaning and painting devices made by KISS. According to the Swedish standards, abrasive cleaning is performed up to cleaning degree Sа 2.5. Painting of the finished metal structures is performed with subsequent applying of any industrial paint and anti-corrosion coating. Anti-corrosion protection of metal structures is secured by using the paintwork materials made by the leading European companies Hempel, Jotun, Sigma Coatings, and International Paint.
