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TND-M50 DTH Hammer


  • Model: TND-M50 DTH Hammer -- Compatibility Mission50
  • Matched Bit Shank: Mission50
  • Thread Connection: API 2 3/8’’ REG OR API 3 1/2’’ REG
  • Hole Range: 127-152mm
  • Application: Mining site, Construction, Blasthole drilling, Water well drilling, Geothermal drilling…etc.

TND-M50 DTH Hammer PRODUCT FEATURES:

  1. Deep-Hole Capability

    • TND-M50 DTH Hammer is designed for ≥50m deep holes, with an anti-deviation structure that maintains <1.5°/30m deviation at >80m depth.

  2. High-Impact Efficiency

    • Optimized piston design of TND-M50 DTH Hammer delivers 35% higher rock fragmentation vs. other standard hammers.

    • Wide operating pressure range (6.5-17 bar); 

  3. Extended Service Life

    • Aerospace-grade alloy steel + ion plating (≥50μm) extends piston life to >2,000 hours.

    • Simple inner part structure design reduces maintenance downtime to <15 minutes.

  4. Smart Compatibility

    • TND-M50 DTH Hammer fits φ127-152mm drill bits and major rigs (Sandvik DX, Atlas Copco ROC).

All our TND Series Hammers have the following features:

TND-M50 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 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-M50 DTH Hammer

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

TND-M50 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 of coupling, 

and only the wear-proof casing needs to be replaced timely.

4.5''-5'' High Air Pressure DTH Hammer Working Performance:

10~30 bar (145-428 PSI) Working Pressure

Top Sub Pin Thread: 2 3/8'' API REG & 3 1/2'' API REG

TND-M50 DTH Hammer

TND-M50 DTH Hammer Part Details:


TND-M50 DTH Hammer

TND-M50 DTH Hammer Overall Information:

TND-M50 DTH Hammer

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Wooke Rock Drilling Tools Co., Ltd