8-1/2" PDC Core Bits

8-1/2" PDC Core Bits :

Product Specification

·    Bit Size: 8-1/2"

·    Profile: Shallow Parabolic

·    Cutter Size: φ13 mm

·    Cutter Quantity: φ13×30

·    Nozzle Quantity: 12

·    Gauge Length: 45 mm

·    Connection: CHUAN7-4

·    Net / Gross Weight: 29 / 44 kg

·    Rotary Speed (RPM): 40 ~ 150

·    Weight on Bit (KN): 40 ~ 80

·    Max. WOB (KN): 90

·    Flow Rate (lps): 10 ~ 30

Product Description

The 8-1/2" PDC core bit features a shallow parabolic profile with medium cutter density, designed for coring medium-hard formations. Utilizing patented PDC cutters and TSP-protected inner blades/gauge enhances hard formation drilling capability and wear resistance.

Features

·    Shallow Parabolic Profile – Optimized profile design for efficient coring in medium-hard formations — provides stable coring performance and high core recovery.

·    Medium Cutter Density – Balanced cutter layout with 30 φ13mm PDC cutters — delivers efficient cutting without compromising core quality.

·    Patented PDC Cutters – Utilizing different patented PDC cutters enhances the bit's ability to drill in hard formations.

·    TSP-Protected Inner Blade and Gauge – High-quality TSP (Thermally Stable Polycrystalline Diamond) in the inner blade and gauge provides high wear resistance for longer bit life.

·    Optimized Nozzle Design – 12-nozzle configuration improves cleaning and cooling, enhancing cuttings evacuation capability.