Rock Bits

12 1/4 inch Tricone Rock Bit – IADC 535

311.2 mm IADC 535 tricone rock bit with a 6 5/8 API REG connection.

12 1/4 inch Tricone Rock Bit – IADC 535 - Product Visual

12 1/4 inch Tricone Rock Bit – IADC 535

Short Description

311.2 mm IADC 535 tricone rock bit with a 6 5/8 API REG connection.

ÜRÜN AÇIKLAMASI

12 1/4 inch Tricone Rock Bit – IADC 535 is a three-cone drilling bit with a nominal diameter of 311.2 mm and a 6 5/8 API REG connection. The IADC 535 class identifies a Tungsten carbide insert (TCI) cutting structure and Gauge-protected sealed roller bearing arrangement for soft to medium-hard formations.

The reference operating range is 40–300 RPM with 110–220 kN recommended weight on bit. Poor bottom-hole cleaning causes cuttings to be reground, raises heat and shortens cutter life. Final operating values must be checked against the formation, rig capacity and circulation conditions on site.

TECHNICAL SPECIFICATIONS

Product type Three-cone tricone rock bit
Nominal diameter 12 1/4 inch / 311.2 mm
IADC code 535
Cutting structure Tungsten carbide insert (TCI)
Formation class Soft to medium-hard formations
Bearing arrangement Gauge-protected sealed roller bearing
Connection 6 5/8 API REG
Reference rotary speed 40–300 RPM
Recommended WOB 110–220 kN
Circulation / nozzles Combined / 4
Reference make-up torque 38–43 kN·m
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