TND-380N DTH Hammer

Model: TND-380N DTH Hammer - Compatibility DHD380 without footvalve
Matched Bit Shank: DHD380 without footvalve
Thread Connection: API 4 1/2’’ REG
Hole Range: 194-305mm
Application: Mining site, Construction, Blasthole drilling, Water well drilling, Geothermal drilling…etc.

TND-380N DTH Hammer Product Features:

High Impact Energy:
TND-380N DTH Hammer is specifically designed for breaking medium-hard to hard rock, delivering powerful single-blow impact force.

High Impact Frequency:

TND-380N Hammer maintains high striking frequency while ensuring high energy output, enabling efficient drilling speed.

Long Service Life:
TND-380N Hammer has critical components (piston, top sub, piston case, driver sub...) that feature strong wear resistance, extended maintenance intervals, and a long total service life, reducing overall operating costs.

Reliable Sealing System:
TND-380N Hammer utilizes high-performance seals to effectively prevent hydraulic oil leakage and block external contaminants (water, rock dust), protecting internal precision components and extending service life.

All our TND Serise Hammers have the features as following:

TND® optimized structure design: Fewer air holes on internal cylinder, higher stiffness of air slot.
Standard API Thread.
Fine CNC machining tolerance and specifications coupled with quality assembly lead to great reliability and performance.
The piston case is made of superior alloy steel to provide the longest service life possible.
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.
The multiple threads are CNC machined to achieve a higher level of accuracy, allowing ease of breakout and make-up of the Driver sub.
The Driver sub is heat-treated to maximize life and maximize drill bit life.
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:

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

↑★ 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.

7''-8'' High Air Pressure DTH Hammer Working Performance:

10~35 Bar (145-507 PSI) Working Pressure

Top sub Pin Thread: 4 1/2'' API REG / 4 1/2'' BECO