Abstract: In a steel casting installation with double-acting and fast-acting mechanical burr removal machine or unit for burn burrs which are produced when the continuous casting is cut up thermochemically, travalling or stationary burr removal machines or units are provided for stationary or moving bloom blocks or billets, wherein a shearing beam arranged stationarily or displaceably beneath the bloom in the horizontal plane inclinedly relative to the burr line carries a guided shearing bar which is resiliently adjustable in respect of height at both ends, in one piece or comprising individual, spring-mounted portions, possibly with front and rear cutting edges, for pressing against the burr line horizontally or inclinedly in the vertical plane.