T38 Top Hammer Button Bits for Rock drilling
Hot mosaic carbide button, strong fixing ability
Alloy steel body
Better wear-resistance and impact-resistance performance
Wholesale in worldwide
The Top Hammer Rock Drill Bits (or Threaded Button Bits) is the fighting rock part in a Top Hammer drilling rig, it’s an import role in the drilling process. The rock button bits receive the impact wave transmitted by the drill rods and break the rocks. The Top-hammer button bits suitable for small hole drilling in high speed and efficiency, but the Top-hammer drilling is more susceptible to deflection because the drill bit has to withstand not only the propulsive force and the rotational torque, but also withstand the impact wave.
TOP HAMMER ROCK DRILL BUTTON BITS FEATURE: ·The optimal drilling hole diameter is 25-102 mm ·Usually the hole depth is less than 25 meters ·Suitable for the stable and uniform hard rock ·The flushing medium is compressed air or water ·High drilling efficiency in shallow holes, the deeper, the lower ·Susceptible to deflection
The Top hammer rock drill button bits (or Threaded button bits) are widely used in Hole-forming operation for Metal mine, Under-ground mining, Open-cast mining, Quarry, Tunnelling, Anchoring, and Construction etc where need rock blast.
BONMACH'S BITS FEATURE: We select carbide button material GF20G, GF20B which hardness 90.3HRA-90.4HRA, and finish forged steel NO.45CrNiMoV with hardness 45HRC as steel body, adopt hot fitted technology for all our Top-hammer button bit products. Our rock drill bits have the performance of stronger button-fixing ability, better ware-resistance and impact-resistance, high drilling speed and long service life.
We have spherical and ballistic type by the shape of the Tungsten carbide buttons. And according to the body type we have general, retract, reaming, guide etc to meet different condition requirements.
We have the following threaded models for choosing:
R25,R28, R32, R3212, TR32, R35, TR35, R38, T38, T45, T51, ST58, GT60 etc.