DTH Drilling Tools or DTH Hammer

DTH Hammer Function Description: How does a DTH hammer work? Compressed gas enters the DTH hammer through the drill pipe and then discharges from the DTH hammer button bits . The exhaust gas is used to discharge the ballast. The rotary motion of down the hole hammer is provided by the rotary...

Product Details

DTH Hammer Function Description:

How does a DTH hammer work? Compressed gas enters the DTH hammer through the drill pipe and then discharges from the DTH hammer button bits. The exhaust gas is used to discharge the ballast. The rotary motion of down the hole hammer is provided by the rotary hammer bit head, and the thrust of the shaft is provided by the propeller, which is transmitted to the DTH hammer through the drill rod. Brazing jacket is mainly used to transfer thrust and rotary motion to drill bit. The clasp controls the axial movement of the drill bit, while the check valve is used to stop impurities such as ballast from entering the DTH hammer when the pressure supply is stopped. During drilling, the DTH button bit is pushed by the dth hammer and pressed on the brazing sleeve. At this time, the piston directly impacts the bit to drill. When the bit is lifted off the bottom of the hole, it begins to blow strongly. That is the DTH hammer working principle


we are DTH hammer manufacturers ,we make all kinds of dth hammer sizes.  And design all kinds of DTH hammer for sale, customer always inquire many DTH hammer factory, compare DTH hammer price. Then choose the best suitable products. Our products can give you best quality and function guarantee and best service.


DTH Hammer design advantages:

1. Using the latest contemporary rock drilling theory to design the internal structure size of down the hole hammer, the DTH Hammer can obtain the most ideal energy transfer, the single impact work is large, and the drilling speed is faster.

2. Special taper diameter-changing design. If gravel and soil jam occurs during drilling, taper diameter-changing during drilling can reduce lift resistance and greatly reduce the occurrence of faults that can not be brought out by DTH Hammer.

3. In order to prevent dust pollution in drilling operation, special computer programmed heat treatment technology is adopted for the main parts of the product, which is beneficial to adding a small amount of high-pressure water into compressed air and conducting wet drilling to protect the health of operators.

4. Users of this design can connect directly with drill pipe without changing diameter joint, so as to reduce the production cost of users.

5. Choose the best raw materials and the most advanced processing technology, the performance is more stable and the service life is longer.

6. It has the simplest, reliable and easy to assemble and disassemble internal structure with fewer failures and convenient maintenance.


Product structures:

The dth hammer piston, inner cylinder, valve seat, check valve and bit accessories are installed in the slender outer cylinder. The upper joint with wrench opening and connection thread is installed on the outer cylinder, and the brazing sleeve with thread connection is installed on the lower end.

So, our company also sale the dth hammer parts, for example, dth hammer breakout bench,  dth hammer shock absorber,  dth hammer bench,  dth hammer bit sharpener,  dth hammer control tube,  dth hammer chuck,  dth hammer foot valve.

DTH hammer rock bit

DTH hammer rock bit


DTH hammer button bit

DTH hammer button bit


DTH drill hammer

DTH drill hammer


Specification:

DTH Hammer series:

1. High pressure DTH Hammer

- SD series hammer: SD 5, SD 6, SD 8 and SD 12 DTH Hammers.

- QL series hammer: QL 50, QL 60, QL 80 DTH Hammers.

- HD series hammers: DHD 3.5, DHD 340. DHD 350, DHD 360, DHD380 DTH Hammers.

- Mission series hammers: M30, M40, M50, M60, M80 DTH Hammers.

- Cop series hammers: Cop 32/34, Cop 42/44, Cop 54/64 DTH Hammers.


2. Low air pressure DTH Hammer
- BR1, BR2, CIR 70, CIR 90, J60, J80, J100, J150, etc.


Parameter:

Specifications:

Weight (kg)

External Diameter (mm)

Connection thread

Hole range (mm)

Impact rate

Recommended rotation speed

Low air pressure

DTH hammer CIR type

5 ~22

50~180

CIR**

55~200

820 rpm


Middle air pressure

BR & COP type

10~30

70~110


85~115



3 inch DTH hammer

24.5

81

API 2 3/8" Reg

90~110

28Hz

(at 17 bar)

28 r/min

COP34/QL30 etc

4 inch DTH hammer

39.2

99

API 2 3/8" Reg

110~150

27Hz

(at 17 bar)

25~40 r/min

COP44/DHD340 etc

5 inch DTH hammer

71.5

125

API 2 3/8"

or API 3 1/2" Reg

135~165

25Hz

(at 17 bar)

20~30 r/min

COP54/Mission50 etc

6 inch DTH hammer

98

142

API 3 1/2" Reg

152~216

23Hz

(at 17 bar)

15~25 r/min

COP64/QL60 etc

8 inch DTH hammer

188

180

API 4 1/2" Reg

203~305

20Hz

(at 17 bar)

15~20 r/min


ROSCHEN DTH Hammers Specifications

Hammer Size

Bit Shank

ROSCHEN Code

Connection Thread

Suitable bit

Working pressure

Air consumption

2"

BR2

ROS 11 ROS 22

RD50 box

¢70-¢90mm

0.7-1.75Mpa

0.7Mpa

4.5m3/min

1.0Mpa

4m3/min

1.4Mpa

5m3/min

3"

DHD3.5

ROS 32

API 2 3/8" Reg

¢90-¢110mm

1.0-1.5Mpa

1.0Mpa

4.5m3/min

COP32/COP34

M30

1.5Mpa

9m3/min

4"

DHD340

ROS 34

API 2 3/8" Reg

¢110-¢135mm

1.0-2.5Mpa

1 0Mpa

6m3/min

COP44

QL40

SD4

1.8Mpa

10m3/min

M40

2.4Mpa

15m3/min

5"

DHD350

ROS 52 ROS 54

API 2 3/8"Reg/API 3 1/2" Reg

¢135-¢155mm

1.0-2.5Mpa

1.0Mpa

9m3/min

COP54

QL50

SD5

1.8Mpa

15m3/min

M50

2.4Mpa

2 m3/min

6"

DHD360

ROS 62 ROS 64

API 3 1/2" Reg

¢155-¢190mm

1.0-2.5Mpa

1.0Mpa

10m3/min

COP64

QL60

SD6

1.8Mpa

20m3/min

M60

2.4Mpa

28.5m3/min

8"

DHD380

ROS 82 ROS 84

API 4 1/2" Reg

¢195-¢254mm

1.0-2.5Mpa

1.0Mpa

15m3/min

COP84

QL80

1.8Mpa

26m3/min

SD8

2.4Mpa

34m3/min

M80/M85

10"

SD10

ROS 100

API 6 5/8" Reg

¢254-¢311mm

1.0-2.5Mpa

1.0Mpa

22m3/min

Numa100

1.8Mpa

40m3/min

ROS 100

2.4Mpa

55m3/min

12"

DHD1120

ROS 120

API 6 5/8" Reg

¢305-¢445mm

 . -2.5Mpa

1.0Mpa

30m3/min

SD12

1.8Mpa

56m3/min

Numa120

2.4Mpa

78m3/min

Notes: Any special size of DTH bits will be available by requests.

Metzke, Remet thread is available!


Application:

Our company is the backbone manufacturer of national rock drilling machinery products and has obtained the production license of DTH drills. Among them, QL70/80/90/100 DTH hammer is a new generation patent developed by many experienced scientific experts of our company, referring to the latest technology of shallow hole drills at home and abroad and the problems often occurring in practical use. Products are widely used in railway, highway, hydropower, water conservancy, mining, quarrying, construction, ship and other basic energy construction fields. After years of market testing, product reputation and quality are widely spread in the industry.


Service:

Package:

Using ply-wooden cases and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests.

 

Production time:

Generally need 15-25 days

 

Transportation:

By air, By Express or By sea according to your requests.

 

Quality & Service:
A. There will be strict inspection and testing for every order before shipping out.
B. Our sales team and Technical Support will response for your question within 24 hours through

roschen@roschen.com; roschen@roschen.cn 

WhatsApp/Wechat: +86-13764195009

C. Free replacement will provide once the failure confirmed caused or our product quality


Inquiry