K series mining tri-cone bit is suitable for the construction of blast holes in metallurgy, coal, mining and other engineering fields. It is mainly used in open-pit coal mines/copper mines/gold mines/molybdenum mines/iron mines and various non-ferrous metal deposits. The bit size range is 6-17 1/2 inches, and the IADC code ranges from 412 to 845.
 |  |
 |
 |
 |
 |
 |
 |
 |
 |
YG series rotary drilling palm is suitable for the rotary drilling cylinder used in the hole-forming operation of building foundation engineering, widely used in the foundation construction of municipal construction, highway bridge, high-rise building and so on. It an be divided into three types according to the different head structure, namely, conventional head-type rotary drilling palm，the head-type rotary drilling palm with square structure and the quick-change rotary drilling palm.
 |
 |
 |
YG series structure features
》Rubber face sealed journal bearing structure and hardfacing hard alloy on head surface applied to bearing are used to improve the carrying capacity.
》Cutter arrangement on head OD with high density is used to improve wear resistance of head OD.
》Cutter rows and cutter number are optimized. The main cutting teeth are conical teeth, which is suitable for drilling in hard and brittle stratum.
The YK series is divided into the conventional head-type trenchless palm and head-type trenchless palm with square structure according to different head structures. YK series trenchless palm is suitable for the cone-type rock reamer in horizontal directional crossing construction. Product size from 6 1/2 to 17 1/2, IADC codes are 537-637.
 |
YK series structure features
》Metal face sealed journal bearing structure, hardfacing hard alloy on head surface applied to bearing, and plating silver on the inner hole of the cone are employed to improve the loading capacity, anti-galling ability and stability of the bearing.
》Cutter rows and cutter number are optimized. The main cutting teeth are conical teeth, which is suitable for drilling in hard and brittle stratum.
》The new compensating lubrication system is equipped with a new synthetic grease, which improves the pressure balance speed inside and outside the bearing, better protects the bearing sealing system and improves reliability.
》The full head OD cutter arrangement with high density and a gradient change in exposure cutter height was used to adapt to directional horizontal drilling.
KK series cone-type rock reamer is suitable for rock trenchless and traversing construction of rock strata, with dimensions covering φ220mm-2200mm.
 |
KK series product features
》Based on the lithology of the formation, multiple types of cone-type palms have been optimized and combined, which can be applied to various formations and improve rock breaking efficiency.
》The anti-drop structure for the cone is used, which can prevent the cone from falling off and causing accidents in the hole as much as possible after the cone bearing is damaged.
》The front end of the reamer body is equipped with a guide block and guide ring with structural strengthening and surface wear-resistant treatment, which can improve the working stability of the reamer under high torque conditions and enhance the slag removal effect.
》Three-dimensional software is used for weight reduction design, which can effectively reduce the weight of the large-diameter reamer, improve the trajectory of reaming and reduce sticking during reaming and pipe dragging.
The SE series engineering tri-cone bits are suitable for engineering fields such as water wells, medium and low temperature geothermal wells, coalbed methane wells, frozen holes, and non excavation directional drilling.It has the characteristics of long service life, strong adaptability, good gauge protection, and high efficiency under conditions of medium to low WOB and high RPM.The bit size range is 6-17 1/2 inches, and the IADC code ranges from 116 to 637.
SE series conventional structure
》Head OD is reinforced with inserts.
》Rubber face sealed journal bearing structure and hardfacing hard alloy on head surface applied to bearing are employed to improve the loading capacity.
》The new compensating lubrication system is equipped with a new synthetic grease, which improves the pressure balance speed inside and outside the bearing, better protects the bearing sealing system and improves reliability.
SE series optional structure
》Metal face sealed journal bearing structure, hardfacing hard alloy on head surface applied to bearing, and plating silver on the inner hole of the cone are employed to improve the loading capacity, anti-galling ability and stability of the bearing. Additional feature M.
》Flat sealing structure, additional feature F.
