| Customization: | Available |
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| Customized: | Customized |
| Standard: | AISI, API |
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| Basical Specification | |
| Bit Size | 8 1/2'' |
| IADC Code | 637 |
| Thread Connection | 4 1/2'' API REG PIN |
| Series | Sealed Bearing |
| Nozzle Qty | 3NZ |
| N.W./G.W.(KG) | 37/40 |
| Operating Parameters | |
| WOB(KN/mm) | 0.5-1.2 |
| RPM(R/MIN) | 80-40 |
| Formations | Hard formations with high compressive strength, such as sandstone,limestone,dolomite,hard gypsum,marble,etc. |
| Recommended Drilling Parameters | |||
| IADC | WOB(kn/mm) | RRM(r/min) | Applicable Formations |
| 116 117 | 0.35~0.8 | 150~80 | Very soft formations with low compressive strength and high drillability.such as clay,mudstone,chalk,etc. |
| 126 127 | 0.35~0.9 | 150~70 | Soft formations with low compressive strength and high drillability,such as mudstone,gypsum,salt,salt,soft shale,soft limstone,etc. |
| 136 137 | 0.35~1.0 | 120~60 | Soft to medium soft formations with low compressive strength and high drillability,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft formation with harder interbeds,etc. |
| 216 217 | 0.4~1.0 | 100~60 | Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft sandstone,soft for mations with harder interbeds etc. |
| 246 247 | 0.4~1.0 | 80~50 | Medium hard formations with high compressive strength,such as abrasive shale,limestone,sandstone,dolomite,hadr gypsum,marble,etc. |
| 417 437 447 | 0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability,such as clay,gypsum,salt,soft shale,soft limestone,etc. |
| 517 527 | 0.5~1.0 | 140~60 | Soft formations with low compressive strength ang high drillability such as mudstone,gypsum,salt,soft shale,soft limestone,etc. |
| 537 547 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,mediun soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds.etc. |
| 617 627 | 0.45~1.1 | 90~50 | Medium hard formations with high compressive strength such as hadr shale,limestone,sandstone,dolomite,etc. |
| 637 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone,limestone,dolomite,hard gypsum,marble,etc. |
| Note:the upper limits of WOB and Rpm in above lable should bot used simulaneously | |||
Basic information
Business Type:Manufacturer,Trading Company
Main Products: Tricone Bit,PDC bits,Hole Opener,Roller Cone Bit,Drag Bit
Total Annual Revenue:US$1 Million~US$2.5Million
Top 3 Market:Domestic Market 50.00%,Eastern Asia 10.00%,Mid 10.00%
Location:Hebei,China(Mainland)
Toal Employees:101-200 people
Trade Capacity
Trade & Market
| Main Markets | Total Revenus(%) |
| Domestic Market | 50.00% |
| Eastern Aisa | 10.00% |
| Mid East | 10.00% |
| North America | 5.00% |
| South Aisa | 5.00% |
| Northern Europe | 5.00% |
| Easrtern Europe | 5.00% |
| South America | 5.00% |
| Africa | 5.00% |
Export percentage: 70%~80%
No.of Employees in Trade Department:15~20 people
Countries that our company have already exported:United States, Australia, Costa Rica, Guatemala, Azerbaijan, Congo, Myanmar, Peru, Singapore, Oman, Indonesia, Philippines, India, Switzerland, Ukraine, Turkey, Bolivia, Romania, Kenya, Vietnam, South Africa, Kuwait, Mozambique, Ecuador, France.
ExhibitionCertificates
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