The piece of equipment was manufactured by SMU-1, PJSC “Northern Construction Department” (SUS).

The cylinder structure is made of austenitic steel 08Х18 Н10Т. The height of the structure - 9,5 meters, diameter - 6,5 meters, net weight - 15,9 tons, 28 tons including assembly jig. The reactor cavity liner includes embedded parts, designed by Gidropress design bureau with a positional location accuracy within 2mm to be installed to the height of 9,5m.

Reactor cavity lining is the permanent formwork for concreting to be followed by installation of the reactor pressure vessel. Once positioned, the structure will allow to continue concrete casting to elevation +26,000.

This is the first structure of this kind to be manufactured by PJSC SUS at SMU-1. A special sectional positioner was used, and a “roll” method of operation. In future the sectional separable assembly jig can be used to manufacture such structures for other nuclear power establishments.


The Holding “Titan-2” is the largest in the North-West group of companies, erecting the most important objects of the nuclear industry and energy. The organization performs a full range of construction and installation works from engineering to commissioning.

The Holding “Titan-2” is one of the main contractors for the construction of power units No. 1 and No. 2 of the Leningradskaya NPP-2. Main organizations of the company perform 30% of general construction and 80% of installation works on the site. Specialists of the holding are engaged on the objects of the Leningradskaya NPP-2 first and second power units. The works are being performed in the buildings of the reactor, turbine, electricity, water, heating system and other structures of power units.