Welcome to Wooke Rock Drilling Tools Co., Ltd
TND-QL40 DTH Hammer Product Features:
The TND-QL40 DTH hammer is designed for construction, exploration, and mining drilling applications.
Our TND-QL40 DTH hammer is designed to work under the pressure of 10-25 bar range. The solid foot valve and heavy piston offer the hammer a high level of reliability and longer service life.
The TND-QL40 DTH hammer features a 10-spline shank features availability of a large contact area for intermeshing of splines.
All our TND Series Hammers have the following features:

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 service 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.
4'' High Air Pressure DTH Hammer Working Performance:
10~25 bar (145-362 PSI) Working Pressure.
Top Sub Pin Thread: 2 3/8'' API REG.

TND-QL40 DTH Hammer Part Details:

TND-QL40 DTH Hammer Overall Information:
