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Doloto 250.8 TKZ-PV
(设备/材料)
概观:
The roller cone bit 250.8 V-ACS64Y-R1203-7 (the old designation is the bit 250.8 TKZ-PV) is designed for drilling hard abrasive rocks with strong layers, therefore it is equipped with carbide-shaped wedge-shaped teeth pressed into it.
According to the location and design of the purge channels, this roller cone bit is a type of drill bit with a central purge.
Technical characteristics of the drill bit 250.8 V-ACS64Y-R1203-7 (250.8 TKZ-PV)
Options | Values |
---|---|
Bit diameter | 250.8 mm (9 7/8 ”) |
The angle of the axis of the axle to the axis of the bit | 54 deg |
Offset axis offset relative to bit axis | 0.25 mm |
Type of support | V |
Total number of teeth (internal / peripheral) | 159 (103/56) |
The total number of rows of teeth (internal / peripheral) | 13 (10/3) |
Connecting thread | Z-121 (API 4 ½ FH) |
Net bit weight, kg (calculation / fact.) | 47 kg |
Gross weight, kg (cardboard / wood) | 48.6 kg |
Recommended Drilling Modes
Rotation frequency | 90 rpm |
Axial load | 25 t |

JSC Mining Machines
主要产品/服务: Широкая номенклатура оборудования для горной добычи, переработки и транспортировки руды
成立年: 2006