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.

Shank can be available:

1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 405mm-864mm shank SD15, SD18
11), VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...

We can also provide related products DTH hammers, ODEX system, symmetrix systems, slide block drilling systems, etc and DTH drilling pipes for various thread API REG, API IF, BECO, etc


Product photos



Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement 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.

FAQ 

Q: Are you a manufacturer or trading company ?
A: We are a specialized manufacturer.

Q: How about the delivery terms ?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount ?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.


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