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We sent technological staff to the local mine regularly in order to investigate data about bit damage degree and fitness to the formation. We are
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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 SPECIFICATION |
IADC Code: 635 |
Bearing Type: Roller-Ball-Roller-Thrust Button/Sealed Bearing |
Circulation Type: Jet Air |
Cutting Structure: |
Inner and Nose Rows: Double spherical |
Gage Rows: Conical |
Gage Bevel Protection: Ovoid |
Pin Connection: 4 1/2″ API REG |
Metric Bit Diameter: 216 mm |
Product Weight: 84 lbs/38 kg |
OPERATING SUGGESTIONS |
Weight on Bit: 25,500-51,000 lbs/11.6-23.1 T |
Rotational Speed: 60-100 rpm |
Air Back Pressure: 29-58 psi/0.2-0.4 MPa |
We sent technological staff to the local mine regularly in order to investigate data about bit damage degree and fitness to the formation. We are
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