Siemens system 840D cnc boring machine 1.High precision boring 2.High quality milling 3.High speed cnc machine CNC High Speed Floor Milling and Boring Machine Series BDTK69 SeriesUnitsBDTK6916BDTK6920Boring spindleBoring spindle diametermmφ160φ200Boring spindle taper(7:24)mmISO50ISO60Milled spindle Milled spindle face diameter mmφ260φ260RamRam face dimensionsmm480X560480X560Every axis ...