Underground scaler is also called scaling jumbo, is a special equipment for rock scaling and risk elimination in small and medium-sized tunnels. Mining vibratory pick scaler is mainly applicable to underground mine and various underground construction tunnels, quickly and effectively remove the unstable rocks on roof and two sides of the tunnel face that are easy to fall, collapse and relatively hidden after blasting operation, to prevent the occurrence of rock falling accidents, to ensure the safety of operators and machines. Siton QM series scaling rigs get four-wheel wet braking, articulated chassis with small turning radius, strong traffic capacity. The equipment realizes mechanization of scaling operation. The suitable cross-sections (width x height) are from minimum 3m x 2.5m to maximum 8m x 8m. There are two models, QM1 with a reaching height of 6m and QM1L with 8m.