Supply Ability | 300pcs per quarter |
Delivery Time | 5~45 workdays |
Packaging Details | plywood box / iron box |
Bearing Type | Sealed Journal |
Cutting Material | TCI |
Standard | API-7-1, ISO 9001:2008 |
Series | FSA |
Connection | 6 5/8" API Reg. PIN |
Protection on Heel Row | Trimming Cutters |
TRC | Three Roller Cone |
Brand Name | FLRT |
Model Number | 12 1/4" FSA537G |
Certification | API-7-1, ISO 9001:2008 |
Place of Origin | China |
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Product Specification
Supply Ability | 300pcs per quarter | Delivery Time | 5~45 workdays |
Packaging Details | plywood box / iron box | Bearing Type | Sealed Journal |
Cutting Material | TCI | Standard | API-7-1, ISO 9001:2008 |
Series | FSA | Connection | 6 5/8" API Reg. PIN |
Protection on Heel Row | Trimming Cutters | TRC | Three Roller Cone |
Brand Name | FLRT | Model Number | 12 1/4" FSA537G |
Certification | API-7-1, ISO 9001:2008 | Place of Origin | China |
High Light | rotary drill bit ,mill tooth tricone bit |
12 1/4" FSA537G , Rubber Sealed Journal Bearing , TRC Bit , Tungsten Carbide Insert , Trimming Cutter
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
Types & IADC Code | 117 | 127 | 437 447 | 517 527 | 537 547 | 617 627 | 637 | |
WOB | KN/mm(Bit Dia.) | 0.35~0.8 | 0.35~0.9 | 0.35~0.9 | 0.35~1.0 | 0.45~0.95 | 0.45~1.1 | 0.5~1.1 |
Lb/in. (Bit Dia.) | 2000~4271 | 2000~5142 | 2000~5142 | 2000~5714 | 2571~5714 | 2571~6285 | 2857~6285 | |
Rotation Speed (Rpm) | 240~80 | 240~70 | 240~70 | 220~60 | 220~50 | 200~50 | 180~40 |
Roller Cone Bit Tips
The bits are sub divided into different categories depending on soil condition. There are three main categories: soft, medium and hard formation bits. Soft formation rock bits are used in unconsolidated sands, clays, soft lime stones, red beds and shale. Medium formation bits are used in calcites, dolomites, lime stones, and hard shale, while hard formation bits are used in hard shale, calcites, mudstones, cherty lime stones and hard and abrasive formations.
The cutting structure of the bits varies according to the rock formation. Soft bits will have longer protruding teeth or chisel-shaped buttons, and fewer, more widely arranged teeth. Medium formation bits will have much closer teeth than soft formation bits, and the protrusion of the teeth is reduced. The teeth are very short and closely arranged on hard formation bits. Because of the shorter teeth the penetration of the rock bit during drilling is less than with soft or medium formation bits, but the other bits cannot be used in hard strata.
The bits are further classified based on their internal bearings. Each bit has three rotating cones and each one will rotate on its own axis during drilling. While the bits are fixed to the drilling rigs, the rotation of the drill pipe will be in a clockwise direction and the roller cones are rotated in an anti-clockwise direction. Each roller cone is rotated on its own axis with the help of the bearing. Again, the bearings are classified mainly into three types: Open bearing bits, Sealed Bearing Bits and Journal Bearing bits.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
1992
Total Annual:
10000000-13000000
Employee Number:
150~200
Ecer Certification:
Site Member
Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is established in 1992 and located in Hebei Province, China. Integrated with Beijing Feilong International Trade Co., Ltd. and Beijing Superior Drilling Equipment Co., Ltd. , the company has involved into a comprehensive enterprise integrating... Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is established in 1992 and located in Hebei Province, China. Integrated with Beijing Feilong International Trade Co., Ltd. and Beijing Superior Drilling Equipment Co., Ltd. , the company has involved into a comprehensive enterprise integrating...
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