Gaode Equipment Co., Ltd. is one of the most specialized high-air-pressure DTH drilling equipment developers and manufacturers in China. Manufacturing and supplying a variety range of high, medium and low air pressure hammer and bit, API thread drill pipe, eccentric & symmetric casing system and hydraulic top hammer products including tapered button bit, coupling sleeve, shank adapter etc., Gaode make products which is perfectly compatible with the famous brand such as Atlas Copco, Ingersoll-Rand, Sandvik and other well-known manufacturers with durability and long working life and which is widely used in varies industries including blasting holes drilling, mining, earthwork, well digging, construction foundation etc.

 

With high brand reputation, super quality reliable and complete produce variety, Gaode is where you can always find the best in your budget.

Features of DTH High air pressure hammer:
1. In order to increase working life of the piston case when drilling very abrasive rocks, the driver sub is designed to be made up of three pieces and only the wear-proof casing need to be replaced timely.
2. Heat treated piston and internal cylinder guiding system are reasonably structured to achieve the highest efficiency and the largest impacting power. The penetration speed is 10%-30% faster than other products of the same type.
3. TND optimized structure design: Fewer air holes on internal cylinder, higher stiffness of air slot.
4.The multiple threads are CNC machined to achieve high accuracy, making the bit easy and smooth to get assembled. Driver sub is heat treated to achieve better abrasiveness and longer life.
5. Hammer front structure design: when pulling out the hammer, the last impact of the piston would fall on the step of piston case, ensuring the safety of the driver sub spline sand the retainer ring.
6. Piston case: Using superior alloy steel, even better reliability and longer life after heat treatment.
7. Internal parts are tightly assembled to avoid interactive wear and hammer's reliability is increased.
8. Standard API Thread.
9. Top sub with cement carbide button(Alternative).

High Pressure Hammer Without Foot Valve

 

No.	Replantcement Parts	Weight (kg)	Part No.
1	Top Sub API REG	3.34	TND-HJT-2.5
2	Check Valve Dart	0.1	TND-NZF-2.5
3	Spring	0.02	TH-2.5
4	Rigid Valve	0.82	TND-NG-2.5
5	Internal Cylinder	0.97	TND-HS-2.5N
6	Piston	4	TND-HS-2.5N
7	Piston Case	5.96	TND-WTG-2.5N
8	Guide Sleeve	0.55	TND-DXT-2.5N
9	Bit Retainer Ring	0.06	TND-KH-2.5
10	O-ring	0.01	O-KH-2.5
11	Driver Sub	1.74	TND-QJT-2.5
12	Sealing Kit	0.01	SK-2.5N
Bit Shank
CWG76N
Bit Diameter
78mm

Weight (kg)	Outside Diameter(mm)	Hammer Length without bit (mm)
17.5	70	806
Hole Range	Working pressure	Air consumption (m3/min)
mm	Bar	10bar	18bar	24bar
76~80	8~24	2	4	6

 

Hammer Model	Hole Range (mm)	Outside diameter (mm)	Hammer length without bit (mm)
TND-2.5N	76~80	70	806
TND-3.5N	90~105	80	863
TND-M30	90~105	80	909
TND-340N	105~130	99	936
TND-M40	105~130	99	955
TND-350N	133~152	126	1045
TND-M50	133~152	126	1045
TND-QL50N	133~152	126	1025
TND-360N	152~254	144	1187
TND-M60	152~254	144	1108
TND-QL60N	152~254	144	1131
TND-380N	194~305	182	1318
TND-M80	194~305	182	1298
TND-QL80N	194~305	182	1300