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What is a Top hammer drill?

D Miningwell was founded in Quzhou city, China in 2001. For more than 20 years production and operation process. D Miningwell has been on the leading edge of mining equipment. We has its own drilling rig, DTH hammer, and drill pipe production workshops. provides a wide range of quality tools to mining, tunnelling, quarrying, water-well projects and urban transportation construction.

The adavantage of our top hammer drill rod:
1. Made from the same steels as Sandvik .
2. CNC machining and advanced heat threatment .
0. We can supply full range of the Hexagonal and Round drill rods .

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Extension Rod(MM Rod)
Thread Sizes: R22, R25, R28, R32, R35, R38, T38, T45, T51
Rod Diameters: Round 32mm, Round 39mm, Round 46mm, Round 52mm, Hex 22mm, Hex 25mm, Hex 28mm, Hex 32mm, Hex 35mm
Effective Lengths: 600mm to 6,400mm

Male/Female (M/F) rod, Speed rod
Thread Sizes: R32, T38, T45, T51
Rod Diameters: Round 32mm, Round 39mm, Round 46mm, Round 52mm
Effective Lengths: 915mm to 6,100mm

Drifting & Tunneling Rods
Thread Sizes: R22, R25, R28, R32, R38, T38
Rod Diameters: Round 32mm, Round 39mm, Hex 25mm, Hex 28mm, Hex 32mm, Hex 35mm
Effective Lengths: 2,100mm to 6,397mm

APPLICATION AREA THREAD TYPE L FT/IN BITS
Surface ground drilling T45 MM/MF 3660 12′ T45-76mm,89mm
T51 MM/MF 3050 10′ T51-89mm,102mm,115mm,127mm
T51 MM/MF 3660 12′
GT60 MM/MF 4305 14′ GT60-102mm,115mm,127mm
Drifting and Tunnelling T38H35R32 MM 4305 14′ R32-41mm,43mm,45mm,48mm,51mm
T38H35R32 MF 4915 16′ R32-76mm,89mm,102mm
T38H35R32 MM 5525 18′
T38H35R32 MF 5525 18′
T38H35R32 MM 6400 21′
T38H35R32 MF 6400 21′
Underground drilling T38H35R32 MM/MF 2475 18′ R32-41mm,43mm,45mm,48mm,51mm
T38H35R32 MM/MF 2900 9.5′ R32-76mm,89mm,102mm
T38H35R32 MM/MF 3700 12′
Underground mining T45 MF 1220 4′ T45-76mm,89mm
T45 MF 1525 5′
T45 MF 1830 6′
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