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Tungsten Carbide Insert Bits
There are two sealing methods,sealed with O shape rubber rings or sealed with metal rings.The former adapts to conventional drill holes, the latter adapts to drill holes with high temperature and high speed.
Adopting friction balls to fasten cones, safe and reliable.
Buildup welding of wearing-resistant alloy at sliding surfaces of the head bearings to improve bearing capacity.
Inlay welding of copper alloy and silver-plated at sliding surfaces of cone bearings to strengthen self-lubricating effects,and improve anti-snapping ability.
HENGJI BIT SPEC | IADC CODE 517 | |
Diameter | 7 7/8"(200mm) | |
Tooth Type | TCI | |
Bearing Type | Elastomer sealed bearing | |
Circulation Type | Mud fluid | |
Thread Connection | 4 1/2 API REG PIN | |
Nozzle | three jet nozzles | |
Gauge Protection | Available | |
Shirttail Protection | Available | |
Operating Parameters | ||
RPM(r/min) | 140~60 | |
WOB(KN) | 0.35~1.0 | |
Formations | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. | |
Application | water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc | |
HR Series Rubber Sealed Bearing Bits
Journal bearing.Hardfaced head bearing surface.inner hole of cone is silver-plated.The load capacity and seizure resistance of the bearing is greatly improved.0 ring seal is made of the more wear resistance high saturated buna-N with the increased seal section and precisely designed sealing flflange in the cone sealing area increased the reliability of the seal.
HC Series Composite Sealed Bearing Bits
The series bits are sealed with composite rubber of sliding bearing,which can bear higher bit pressure and higher rotation speed,the service life of the bearings can be prolonged.
The bearing composite rubber seal ring, more suitable for the working environment and operating parameters of tricone bits.
The bit is made of cemented carbide inserts with high strength and wear resistance ,the inserts strength and wear resistance improved.
HM Series Metal Sealed Bearing Bits
Metal sealed with journal bearing. Hardfaced head bearing surface,inner hole of cone is silver-plated. The load capacity and sei-zure resistance of the bearing is greatly improved. High wear re-sistance and excellent cutting ability of the insert bit are given full play by using carbide compact of high strength and high toughness in combination with optimized compact numbers and rows,the exposure height and special shaped compacts
Mining Tricone Drill Bits
HENGJI BIT ,mining tricone drill bit is mainly used in large open-pit mining operations,such as open-pit coal mines,copper Mines,iron ore mines,molybdenum mines and other non-ferrous metal mined.The bits are used on rotary drills, with a proven reputation of high performance and low cost.
Mining tricone dril bit consists of a bearing structure,cutting structure,shirttal and lug enhancement structures,flow channel system and a thread connection.
The bearing structure consists of lug bearing,cone bearing,seal beaing,main rollers,minor rollers ,locking bearing balls,axle thruse plate, and recess thrust plate,they are categorised into air
Tungsten Carbide Insert Bits
There are two sealing methods,sealed with O shape rubber rings or sealed with metal rings.The former adapts to conventional drill holes, the latter adapts to drill holes with high temperature and high speed.
Adopting friction balls to fasten cones, safe and reliable.
Buildup welding of wearing-resistant alloy at sliding surfaces of the head bearings to improve bearing capacity.
Inlay welding of copper alloy and silver-plated at sliding surfaces of cone bearings to strengthen self-lubricating effects,and improve anti-snapping ability.
HENGJI BIT SPEC | IADC CODE 517 | |
Diameter | 7 7/8"(200mm) | |
Tooth Type | TCI | |
Bearing Type | Elastomer sealed bearing | |
Circulation Type | Mud fluid | |
Thread Connection | 4 1/2 API REG PIN | |
Nozzle | three jet nozzles | |
Gauge Protection | Available | |
Shirttail Protection | Available | |
Operating Parameters | ||
RPM(r/min) | 140~60 | |
WOB(KN) | 0.35~1.0 | |
Formations | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. | |
Application | water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc | |
HR Series Rubber Sealed Bearing Bits
Journal bearing.Hardfaced head bearing surface.inner hole of cone is silver-plated.The load capacity and seizure resistance of the bearing is greatly improved.0 ring seal is made of the more wear resistance high saturated buna-N with the increased seal section and precisely designed sealing flflange in the cone sealing area increased the reliability of the seal.
HC Series Composite Sealed Bearing Bits
The series bits are sealed with composite rubber of sliding bearing,which can bear higher bit pressure and higher rotation speed,the service life of the bearings can be prolonged.
The bearing composite rubber seal ring, more suitable for the working environment and operating parameters of tricone bits.
The bit is made of cemented carbide inserts with high strength and wear resistance ,the inserts strength and wear resistance improved.
HM Series Metal Sealed Bearing Bits
Metal sealed with journal bearing. Hardfaced head bearing surface,inner hole of cone is silver-plated. The load capacity and sei-zure resistance of the bearing is greatly improved. High wear re-sistance and excellent cutting ability of the insert bit are given full play by using carbide compact of high strength and high toughness in combination with optimized compact numbers and rows,the exposure height and special shaped compacts
Mining Tricone Drill Bits
HENGJI BIT ,mining tricone drill bit is mainly used in large open-pit mining operations,such as open-pit coal mines,copper Mines,iron ore mines,molybdenum mines and other non-ferrous metal mined.The bits are used on rotary drills, with a proven reputation of high performance and low cost.
Mining tricone dril bit consists of a bearing structure,cutting structure,shirttal and lug enhancement structures,flow channel system and a thread connection.
The bearing structure consists of lug bearing,cone bearing,seal beaing,main rollers,minor rollers ,locking bearing balls,axle thruse plate, and recess thrust plate,they are categorised into air
