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DTH High air pressure hammer

Type:
High pressure hammer without foot valve
Weight(kg):
17.5
Outside diameter(mm):
70
Hammer length without bit (mm):
806
Hole Range(mm):
76~80
Working pressure(Bar):
8~24
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Description
Application
Features
Technical data
■ Description
Our company's DTH drilling tools are the core equipment matched with Atlas Copco, Sandvik, Ingersoll-Rand and other well-known manufacturers. The DTH drilling tools equipment are widely used in earthwork, mineral exploration, well drilling and foundation engineering, construction, etc.

DTH drilling tools


dth hammer and bit

The DTH high air pressure hammer designed by our company without bottom valve is one of the most advanced designs in the world.

High DTH pressure hammers transmit intense impact energy with low energy loss. This results in good rock breakage, high penetration and high productivity. The equipment is designed to provide the best drilling quality, reliability and long service life, as well as the best blasting results and low total operating costs.

Drilling DTH hammer has following advantages:

1. Bit without foot valve will avoid the problem of foot valve broken or thermal expansion.
2. Lower energy consumption and higher impact frequency.
3. The drilling speed is 15%-30% higher than the one with foot valve.
4. Less parts, simplified, and with parts proper heating treated.
5. Extend the life of using and easier to repairing.

DTH hammer

high air pressure DTH hammer

jack hammer drill bit

drilling dth hammer

■ Application
Drilling DTH high air pressure hammers are used for blast hole drilling and blasting, it is mainly applied in mining, marble quarry or well drilling and other construction projects.

Drilling DTH high air pressure hammers application


Main features of DTH high air pressure hammer:
1. The new products are designed according to the conditions of Chinese mines and improved with advanced technology in the global market.
2. Faster drilling speed.
3. It can improve the hardness and prolong the service life of the hammer.
4. The structure design adopts modern theory to make it bear the force.
5. Longer wave duration, lower stress amplitude and longer piston life.
■ Features
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.

DTH drilling equipment

 
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).
■ Technical data
High Pressure Hammer with Foot Valve

High Pressure Hammer with Foot Valve


Structure of 
High Pressure Hammer with Foot Valve:

Structure of High Pressure Hammer with 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 8 splines 
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

High Pressure Hammer Without Foot Valve

High Pressure Hammer Without Foot Valve


Structure of High Pressure Hammer Without Foot Valve

Structure of 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 6 splines 
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
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