Complex reconstruction of No. 3 continuous caster for blooms and billets in the electric steelmaking shop at Byelorussian Steel Works is done. Its purpose was to increase productivity, to extend dimension range of manufactured products and quality improvement of cast blooms with lowering of specific power consumption. As a result of this reconstruction, productivity of continuous caster increased by 26 %, providing required level of quality parameters. Additionally, casting of round billets (with 200 mm diameter) dor tubemaking has been put into practice at this caster.