Welcome to Wooke Rock Drilling Tools Co., Ltd
TND-SD8 DTH Hammer
- Model: TND-SD8 DTH Hammer - Compatibility SD8
- Matched Bit Shank: SD8
- Thread Connection: API 4 1/2’’ REG
- Hole Range: 194-305mm
- Application: Mining site, Construction, Blasthole drilling, Water well drilling, Geothermal drilling…etc.
TND-SD8 DTH Hammer Product Features:
Large-Hole Hard Rock Penetration
Our TND-SD8 DTH Hammer is optimized for Ø192-305m holes, with unit gross weight of 183kg, total effective length of 1199mm.
High-Efficiency Impact
TND-SD8 DTH Hammer with optimized piston delivers 1,800-2,200 Joules/blow (30% faster rock fragmentation vs. peers).
Intelligent Air Saving
Air consumption 12-35 m³/min at 10-24 bar (10% energy saving).
Military-Grade Durability
Carburized steel piston + piston case, service life >4,000 drill meters in hard rock.
All our TND Series 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
TND-SD8 DTH Hammer Part Details:
TND-SD8 DTH Hammer Overall Information:
