Top Hammer T51 is a heavy-duty threaded rock drilling system used in top hammer drilling applications for quarrying, mining, tunneling, and construction work. It consists of T51 threaded drill rods and button bits that transfer high-impact energy from the drill rig directly to the rock, ensuring fast penetration and efficient drilling performance.Manufactured from high-strength alloy steel with tungsten carbide inserts, the T51 system is designed for durability, precision, and long service life in tough rock conditions. It provides excellent energy transfer, straight hole drilling, and reduced drilling costs per meter.This system is widely used in marble and granite quarries, construction material extraction, and blasting operations where reliable and high-speed drilling is required for hard rock formations.

Technical Specifications:

• Thread Type: T51 standard top hammer thread
• System Components: T51 drill rods + T51 button bits + couplings
• Bit Diameter Range: 76 mm – 127 mm (commonly 89 mm – 102 mm)
• Drill Rod Length Range: 1220 mm – 6095 mm
• Rod Type: Round / Hexagonal high-strength alloy steel
• Material: High-grade alloy steel with tungsten carbide inserts
• Bit Face Types: Flat, concave, convex (varies by rock condition)
• Button Types: Spherical, ballistic, parabolic carbide buttons
• Drilling Method: Percussive (Top Hammer drilling system)
• Energy Transfer: High-impact hydraulic hammer through drill string

Performance Features:

• High penetration rate in hard rock formations
• Excellent straight-hole accuracy
• Strong resistance to wear and impact
• Efficient energy transfer for reduced drilling cost
• Long service life with replaceable bit system

Applications:

• Marble and granite quarry drilling
• Tile industry raw material extraction
• Blast hole drilling for stone blocks
• Mining and tunneling operations
• Construction and infrastructure drilling projects

Packaging:

• Drill rods bundled in steel/wooden crates
• Bits and accessories packed separately for safety
• Custom lengths and configurations available on request