Tungsten Insert Roller Cone Tricone Drill Bits For Water Well Mining Drilling
Brand Name:ENG
Certification:API, ISO
Model Number:635
Minimum Order Quantity:1
Delivery Time:4 weeks
Payment Terms:L/C,T/T,Western Union
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Address:
NO.10, Xinzha South Road, Yangshe Town, Zhangjiagang city ,Jiangsu Province ,China .
Supplier`s last login times:
within 25 hours
Product Details
Company Profile
Product Details
IADC roller-cone bit classification method
The IADC Roller-Cone Bit Classification Method is an industry-wide standard for the description of milled-tooth and insert-type roller-cone bits.
This coding system is based on key design- and application-related criteria.
The currently used version was introduced in 1992 and incorporates criteria cooperatively developed by drill bit manufacturers under the auspices of the Society of Petroleum Engineers.
The IADC classification system is a four-character design- and application-related code.
The first three characters are always numeric;
the last character is always alphabetic.
The first digit refers to bit series, the second to bit type, the third to bearings and gauge arrangement, and the fourth (alphabetic) character to bit features.
CUTTING STRUCTURE
- Conical on gage, double spherical on inner rows.
Designed for high compressive strength, medium hard and abrasive formations, such as limestone, sandstone, interbedded dolomite.
Compressive strength: 29,000-38,000 psi/200-262 MPa
SHIRTTAIL PROTECTION
- Hard welding and wear resistant carbide protection on shirttail lip and lug
| Product Specifications | |
| Diameter | 8 1/2" (216mm) |
| IADC | 635 |
| Bearing Type | Roller-Ball-Roller-Thrust Button/Sealed Bearing |
| Drilling cycle type | Jet Air |
| Connection thread ty | 4 1/2'' REG |
| Operation Parameters | |
| Rotary speed (r/min) | 60-100 r/min |
| Weight on Bit (KN) | 25,500-51,000 lbs/11.6-23.1 T |
| Air Back Pressure | 29-58 psi/0.2-0.4 MPa |
Package&Shipping
FAQ
| Q: You are a trading company or manufacturer ? |
| A: Manufacturer, We are a 100% real factory with over 10 years' experience in water/oil/gas wells Drill Bits. |
| Q: How about your products ? |
| A : Both of tricone bits and PDC bits strictly conform to API 7 requirements and ISO9001. we will do kinds inspections before delivery, also cover for after-sales service. |
| Q: Package Methods ? |
| A: Normally wooden case, also can be steel box; can be customized if need. |
| Q: Payment Terms ? |
| A: we accept T/T, L/C, Paypal, Western Union, etc. |
| Q: Can I visit your factory ? |
| A: Yes, we welcome you to our factory all the time, will send invitation letters if need; also can show our workshop and warehouse online. |
Tungsten Insert Roller Cone Tricone Drill Bits For Water Well Mining Drilling
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