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IADC 437
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Category：
TCl bit
Product details
Nomenclature of RUlSHI Oil Well TCl Tricone Bit Model
| IADC | 5 | 3 | 3 |
| IADC Code | 1, 2, 3: Milled teeth bits from very soft to hard formations 4,5,6,7,8: TCl bits,from very soft to hard formations |
1, 2, 3, 4 from very soft to very hard formations,bits differ in number and size of cutters/inserts |
1:Standard open roller bearing 2:Standard open roller bearing,air-cooled 3:Standard open roller bearing with gauge protection 4:Sealed roller bearing 5:Sealed roller bearing with gauge protection 6:Sealed friction bearing 7:Sealed friction bearing with gauge protection |
BITS SPECIFICATIONS
| BITS SIzE (in) | 8-1/2" | 9-1/2" | 8-1/2" |
| BITS SIzE (mm) | 215.9 | 241.3 | 311.1 |
| IADC CODE | 437 | 437 | 437 |
| Connectionbuckle type | 4-1/2"API-REG | 4-1/8"API-REG | 4-5/2"API-REG |
| RecommendedRPM (r/min) | 240-70 | 240-70 | 240-70 |
| RecommendedwOB(KN/mm) | 0.35-0.9 | 0.35-0.9 | 0.35-0.9 |
PRODUCT FEATURES
Suitable for extremely soft formations with low compressive strength and high drillability
Clay、mudstone、gypsum、soft limestone…
Wear-resistant coating
Carbide wear-resistant material is applied to the palm tip and the edge of the tooth palm
Increase wear resistance and life of the bit
Carbide centralizer embedded on the surface of palm
Reduce the wear of bit grinding formations、oblique well and horizontal well
Improve the life of bit
Gauge inserts of high-quality tungsten carbide alloy
Reduce the wear of bit in grinding formations
Improve the stability and life of bit
High quality tungsten carbide tricone tooth
Reduce wear、increase the crushing capacity and life of bit
Optimize water conservancy structure
Enhance the self-washing ability and life of bit
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To: Hebei Ruishi Bits Manufacturing Co.,Ltd
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No. 502, Taishan North Road, Renqiu Economic Development Zone, Hebei China
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