The new product deburring machine belongs to a type of deburring machine in metallurgical machinery equipment. It includes a rotary blade holder, which is equipped with several blades. The two ends of the blade holder are mounted in the left and right bearing seats through bearings. The two bearing seats are installed in two gantry frames and are equipped with left and right lifting and lowering oil cylinders, especially the installation position for raising one oil cylinder at the lower part of the gantry frame. The left and right lifting oil cylinders are respectively installed at the lower parts of the two gantry frames and push the left and right bearing seats; This utility model changes the lifting oil cylinder from an upper mounted type to a lower mounted type and installs it inside the gantry frame, thereby overcoming the problems of the existing deburring machine oil cylinder being exposed, easily impacted by external objects, and being close to the red steel billet, which can easily cause high-temperature deformation of the cylinder body and pose safety hazards. This utility model is mainly used in the continuous casting billet production line of metallurgical and steel enterprises to remove residual oxidized steel slag attached to the cutting edge of the continuous casting billet after cutting, in order to ensure the shape quality of the billet.