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TND-IR3.5 DTH Hammer


  • Model: TND-IR3.5 DTH Hammer – Compatibility DHD3.5
  • Matched Bit Shank: DHD3.5
  • Hole Range: 90-105mm
  • Application: Quarry, Blasting hole drilling, Micro pilling drilling

TND-IR3.5 DTH Hammer Product Features:

Our TND IR3.5 DTH hammer is a type of high air pressure, which is suitable for drilling holes from 90mm to 105mm. The TND-IR3.5 DTH hammer is the same DHD3.5 hammer on the market and the bits of DHD3.5 are compatible with our TND-IR3.5 DTH Hammers. This type of TND IR3.5 DTH hammer is designed for hard rock, enabling exceptionally fast penetration rates and high drilling efficiency.

All our TND Series Hammers have the following features:

TND-IR3.5 DTH Hammer

  1. TND® optimized structure design: Fewer air holes on internal cylinder, higher stiffness of air slot.

  2. Standard API Thread.

  3. Fine CNC machining tolerance and specifications coupled with quality assembly lead to great reliability and performance.

  4. The piston case is made of superior alloy steel to provide the longest service life possible.

  5. Heat-treated piston and internal cylinder guiding system is reasonably structured to achieve the highest efficiency and the largest impact power. The penetration speed is 10%-30% faster than other products of the same specification.

  6. The multiple threads are CNC machined to achieve a higher level of accuracy, allowing ease of breakout and make-up of the Driver sub. 

  7. The Driver sub is heat-treated to maximize service life and maximize drill bit life.

  8. Hammer front structure design: when pulling out the hammer, the last impact of the piston would fall on the step of the piston case, ensuring the safety of the driver sub-splines and the retainer ring.

Top Sub for Customer's Choice:

TND-IR3.5 DTH Hammer

↑★ Top sub with cement carbide button (Alternative).

TND-IR3.5 DTH Hammer

↑★ In order to increase the working life of the piston case when drilling very abrasive rocks. The Top sub is designed to be made up of three pieces coupling, and only the wear-proof casing needs to be replaced timely.

3'' High Air Pressure DTH Hammer Working Performance:

10~20 bar (145-285 PSI) Working Pressure.

Top Sub Pin Thread: 2 3/8'' API REG.

TND-IR3.5 DTH Hammer

TND-IR3.5 DTH Hammer Part Details:

TND-IR3.5 DTH Hammer

TND-IR3.5 DTH Hammer Overall Specifications:

TND-IR3.5 DTH Hammer

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Wooke Rock Drilling Tools Co., Ltd