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TUNNEL AND MINING EQUIPMENT

STEEL CONSTRUCTION

2-GROOVE RING BIT

2-GROOVE RING BIT

THREAD TYPE

MODEL

PIPE DIAMETER

THICKNESS

CASING DIAMETER

R32,T38,R38,T45,T51

3,5''

89

4-6 mm

102

R32,T38,R38,T45,T51

4,5''

114

6-8 mm

130

Ay-Yıldız Engineering 2-Groove Ring Bits are specialized drilling tools designed for use in Umbrella (Canopy) Arch Systems, providing high performance in steel pipe canopy installations. With their dual-groove structure, these bits efficiently remove cuttings and debris generated during drilling, reducing operation time and improving overall work safety.

Engineered to perform reliably across different rock hardness levels, these bits are manufactured from durable, wear-resistant materials to ensure long service life. Their optimized design enables effective energy transfer during drilling, contributing to stable operation and higher application efficiency. Compatibility with various diameters and drilling machines makes them suitable for a wide range of challenging tunneling applications.

APPLICATION AREAS

  • Installation of canopy pipes in weak or unstable ground
  • Safe transfer of pre-support loads in tunnel excavation
  • Pre-splitting and pilot-hole drilling before blasting

KEY FEATURES

  • Dual-groove design for fast and efficient cuttings removal
  • High wear resistance and extended service life
  • Optimized structure for improved energy efficiency
  • Compatible with various diameters and different drilling machines
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