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Heavy-Duty PDC Rock Drill Bit for Coal Mine Gas Venting – Anti-Blocking Flute Design & High-Strength Matrix [Non-Coring, OEM Support]

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Heavy-Duty PDC Rock Drill Bit for Coal Mine Gas Venting

Anti-Blocking Flute Design & High-Strength Matrix [Non-Coring, OEM Support]

Specifications

Model GVB‑75/100/150 Bit Type PDC Rock Drill Bit (Non-Coring)
Borehole Diameter 75–150 mm (Custom Sizes Available) Matrix Material Tungsten Carbide + Nickel Binder Matrix
Cutter Structure Anti-Blocking Spiral + Straight Flute Hybrid Connection Threaded / R22 / R32 Custom Shank
Compatible Rigs Coal Mine Venting Drills / EBZ Series Core Diameter Non-Coring Design
Drilling Medium Air / Water / Mud Certification ISO 9001
Cutter Layout Hybrid anti-clog flute with optimized PDC cutter placement for soft/loose strata
Drilling Efficiency ≥8–12 m/hr in dusty coal seams
Service Life 25% longer than conventional PDC bits under high-frequency impact
Core Recovery Not applicable (non-coring design)
Bonding Technology Vacuum Brazing + Matrix Surface Heat Treatment
Model Formation Type Optimal RPM Applications
GVB‑75 Soft Dusty Coal Strata 150–300 rpm Shallow Gas Venting in Seam Roof
GVB‑100 Soft to Medium Formations 150–300 rpm Horizontal Gas Drainage in Longwall
GVB‑150 Medium to Hard Coal Beds 150–300 rpm Deep Seam Gas Extraction Projects
Product & manufacturing images

Key Specifications

Model GVB‑75/100/150 Bit Type PDC Rock Drill Bit (Non-Coring)
Borehole Diameter 75–150 mm (Custom Sizes Available) Matrix Material Tungsten Carbide + Nickel Binder Matrix
Cutter Structure Anti-Blocking Spiral + Straight Flute Hybrid Connection Threaded / R22 / R32 Custom Shank
Compatible Rigs Coal Mine Venting Drills / EBZ Series Core Diameter Non-Coring Design
Drilling Medium Air / Water / Mud Certification ISO 9001

Technical Features

Cutter Layout Hybrid anti-clog flute with optimized PDC cutter placement for soft/loose strata
Drilling Efficiency ≥8–12 m/hr in dusty coal seams
Service Life 25% longer than conventional PDC bits under high-frequency impact
Core Recovery Not applicable (non-coring design)
Bonding Technology Vacuum Brazing + Matrix Surface Heat Treatment

Model Guide

Model Formation Type Optimal RPM Applications
GVB‑75 Soft Dusty Coal Strata 150–300 rpm Shallow Gas Venting in Seam Roof
GVB‑100 Soft to Medium Formations 150–300 rpm Horizontal Gas Drainage in Longwall
GVB‑150 Medium to Hard Coal Beds 150–300 rpm Deep Seam Gas Extraction Projects

Field Performance

  • Shanxi Gas Venting Project: GVB‑100 achieved 30% drilling time reduction per hole with 1,200 m lifespan
  • Anhui Coal Mine: GVB‑150 sustained high efficiency in soft coal with >95% operation uptime over 1,500 m
  • Inner Mongolia Deployment: GVB‑75 eliminated clogging in dusty seams, improving crew efficiency significantly