22mm Integral Drill Rod

Kunxu's integral drill rods combine the drill bit, drill rod, and shank
adapter into a single unit. This integral design minimizes energy loss, making
them highly suitable for underground mining and small-hole drilling with
diameters ranging from 24mm to 44mm. Commonly used with air-leg and hand-held
rock drills, they deliver higher drilling efficiency, especially in softer rock
formations.
The "22mm" specification refers to the diameter of the integral drill steel. In
this case, it indicates that the diameter of the drill steel is 22 millimeters.
The integral design means the drill steel and drill bit are produced as a
single unit. This structure provides superior rigidity, improved energy
transfer, and greater efficiency compared to separate bit-and-steel systems. It
also simplifies operation, offering better reliability and ease of use.
22mm Integral Drill Rod Advantages
Higher spindle speed, utilizing percussive force 18%–25% more effectively
compared to separate drill bits.
Easy replacement of the entire drill rod instead of the bit, reducing the risk
of breakage or cracking at the drill bit or rod end.
Worn bit ends can be re-polished and reused as conical drill bits, maximizing
tool life.

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