“Krasny Kotelshchik” is Carrying out Overhauls of Key Production Equipment
PJSC “The Taganrog Boiler-Making Works “Krasny Kotelshchik” (TKZ) is improving efficiency of their machine-tool fleet. Another stage of the large-scale work is an overhaul of KOLB deep hole drilling machine. This equipment has already been put back in service. Product quality control confirmed the high accuracy of performed operations after the machine overhaul.
Three-spindle horizontal-drilling machine belongs to the key group of production equipment of “Krasny Kotelshchik”: these are the machines which are most highly demanded in production: they are operated in three shifts to provide meeting the contractual dates. KOLB is located in the heat-exchange equipment workshop. It is designed for drilling tube plates being the main parts of the heat-exchange equipment produced by this division.
The main target of the overhaul is to prepare the KOLB machine for the ever increasing workload in this direction and to restore the initial performance provided by the machine manufacturer. Taking this target into account the main parts of the machine were replaced. In particular, it was equipped with new cooling medium feed plants, up-to-date hydraulic system and hydrostatics system. Spindle assemblies were in parallel repaired with a complete replacement of gearing.
Earlier one more machine involved in production of heat-exchange equipment was modernized, namely ESAB automatic welding machine. It presupposed further equipping the machine with a flux recirculation system and centralized control panel, as well as installation of a welding torch with two power sources to provide circular welding with two wires. Such design changes allowed significantly improving the efficiency of performed operations. Besides, the existing welding manipulator was modernized; due to that, the range of manufactured products was increased from 4.2 up to 5 m.