During the «Belgian» period of the plant existence, which lasted over 20 years, from one and half hundred to one thousand and twenty hundred adult workers and teenagers worked on the area of 16 hectares in six workshops 12-14 hours per shift.
Specific weight of boiler industry in the products of the plant amounted not much – only 30-40%.
Various boilers were issued: steamship, locomotive, aggregates of «Filda», «Tishbein», «Ferbern», Shukhov type.
Among the modern equipment at that time «Fitzner», «Gamper», «Garbe-Kestner», Lancastrian boilers were issued. Their capacity amounted only to 2-3 tons of steam per hour.