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rotary speed:250-600 RPM
size:8 3/4-11 5/8 inch
highly efficient hydraulic system
SUPER-MD super-high speedmotor drill bit
Turbine drilling tools are usedwidely in Russia oilfield, bits run with super high speed, rotaryspeed of turbine which is matched with 11 5/8” and 81/ 2” bitsreaches to 400rpm ~600rpm, therefore, service life of normal conebits is about 10 hours usually. Kingdream has inventedroller-journal compound bearing for working situation with superhigh rotary speed, which matches with metal seal, in order toprovide bit with high bearing reliability and long life insituation of super high rotary speed. Kingdream has also developedcutting structure and extended double nozzle hydraulic structure tobe suitable for drilling with super high rotary speed. SMDsuper-high speed motor bit matches with turbine while be used inRussia market, the stable service life of bit can reaches to morethan 30 hours in the work situation of above 400 RPM.SMD super-high speed motor bit isrecommended to work in high rotary speed from 250rpm to 600rpm,which is quite economical.The size range of SMD series bit is8 3/4-11 5/8 inch and its IADC code is 417-617.roller-journal complsite bearingwith metal face sealadvanced cutting structure suitable for ultra-high RPMdrillingHighly efficient hydraulicsystem
Bitsize | Bittype | |
Inch | mm | |
83/8 | 212.7 | SMD417,SMD437,SMD447,SMD517,SMD537,SMD617 |
81/2 | 215.9 | SMD417,SMD437,SMD447,SMD517,SMD537,SMD617 |
83/4 | 222.3 | SMD417,SMD437,SMD447,SMD517,SMD537,SMD617 |
105/8 | 269.9 | SMD417,SMD437,SMD447,SMD517,SMD537,SMD617 |
115/8 | 295.3 | SMD417,SMD437,SMD447,SMD517,SMD537,SMD617 |
SUPER-MD super-high speed motor drill bit
