Components of tapper: drill part, hanging device, running institution, beam Item name: tapping machineComponents: drill part, hanging device, running institution, beamApplicable position: before BF equipmentAiguille speed: 295r/minDrill angle of inclination: 9°~19°Drill power: N=5.5KWRunning institution: N=1.5KWAngle diameter: 50mmApplicable BF: 28m³~230m³ Before BF equipment - tapper