Applications: QSM-300 Bridge Type Multi-head Stone Grinding Machine is used to grind granite or marble slabs. With the compact and reasonable structure, it has a high degree of automation that can polish multi slabs according with the requirement at one time. Features of QSM-300 Bridge Type Multi-head Stone Grinding Machine It uses the same grinding material with the manual polishing machine. Advice to choose the resin grinding materials. This polishing work needs 1-2 people operating. With the same techniques of the manual polishing machine, it needs seven steps from rough grinding, extractive grinding and careful polishing to extractive polishing. When one step finishes, it needs to change the grinding material. Specifications Technical data 3-head 4-head 5-head 6-head Main motor power 5.5kw 5.5kw 5.5kw 5.5kw Grinding wheel up-down stroke 120mm 120mm 120mm 120mm Max. processing length 3200mm 3200mm 3200mm 3200mm Max. processing width 1300-1500 1000mm-1200mm 800mm-1000mm 400mm-800mm Min. processing thickness 10mm 10mm 10mm 10mm Number of polishing head 3 4 5 6 Dimension 8250×4700×2100 8250×4700×2100 8250×4700×2100 8250×4700×2100 Weight 6.2 6.2 6.7 7.2 Worktable size Length 3200 3200 3200 3200 Width 1510×3 1310×2/2710×1 1910×2/910×1 1510×3 Hight 600 600 600 600