Bend the straight steel bar to circle. Model GQ40 GQ50 Dia of steel bar φ6-φ40mm(σb<=450Mpa) φ6-φ50mm(σb<=450Mpa) Dia of plate φ350mm φ400mm Speed High10r/min low5r/min high10r/min low 5r/min Power 3Kw 3Kw Voltage 380V 380V Frequency 50Hz 50Hz Size 900x700x723mm 900x750x765mm Weight 362 Kg 377Kg