sell 1500mm Full face roller bit drill heads are used in very hard rock formations 100-200mpaMPa.

1500mm full face drill head used for 100-200mpa hard rock formation match bauer soilmec sany xcmg drill rig 1500mm Full face roller bit drill heads are used in very hard rock formations 100-200mpaMPa. 2000mm full face drill head used for 100-200mpa hard rock formation match bauer soilmec sany xcmg drill rig They make drilling through rock in a single drilling cycle possible without timeconsuming and costly tool changes ,rock cuttings are usually conveyed by the air lift method into collect box mounted on top of the drill head. After having drilled to a certain depth, 1500mm full face drill head is retracted and the collect box is emptied Roller Bit Cutting Roller RM-SR 260 used for full face roller cutter bit 150mpa rock formation Roller Bit Cutting Roller RM-SR 260 used for full face roller cutter drilling head 1500mm 12inch roller cut bit USED FOR Full face roller bit drill head 800mm bauer type used for 100mpa-200mpa rock formation Choice of the insert's shape, size, brand are based on the actual working condition. It can adapt to various types of rock which from 30 MPa to 300 MPa. Tianjin huachang xingye technology co ltd produce roller cut bit used for pile foundation work whatsapp 008618902059907