The paper presents a practical example of improving quality and occupational safety on automated casting lines. Working conditions
on the line of box moulding with horizontal mould split were analysed due to low degree of automation at the stage of cores or filters
installation as well as spheroidizing mortar dosing. A simulation analysis was carried out, which was related to the grounds of introducing
an automatic mortar dispenser to the mould. To carry out the research, a simulation model of a line in universal Arena software
for modelling and simulation of manufacturing systems by Rockwell Software Inc. was created. A simulation experiment was carried out
on a model in order to determine basic parameters of the working system. Organization and working conditions in other sections of the line
were also analysed, paying particular attention to quality, ergonomics and occupational safety. Ergonomics analysis was carried out
on manual cores installation workplace and filters installation workplace, and changes to these workplaces were suggested in order
to eliminate actions being unnecessary and onerous for employees.