High Air Pressure DTH Hammer without Foot Valve

DTH Hammer with Foot Valve type is the most popular type High Air Pressure DTH Hammer. It is widely used in well drilling, pile foundation, and engineering project. GMD has rich experience in manufacturing of High Quality DTH Hammer without Foot Valve....

Send InquiryChat Now




The “DTH” is the abbreviation of “Down The Hole” and sometimes it is also called “RAB” in some markets, and the “RAB” is short for “Rotary Air Blasting”. 

A rotation drill rig, air compressor and the “DTH drill string” are the essential unit for DTH drilling while the “DTH drill string” is always made up of DTH drill rods, DTH hammer and DTH bits. As one of key component, the DTH hammer acts as a role of converting the air pressure to the impact energy, simultaneously transferring impact energy and rotation force to DTH bits

There are two different types High Air DTH Hammer: DTH Hammer with Foot valve and DTH Hammer without Foot Valve, details, kindly check below:

 

High Air Pressure DTH Hammer Available For the Bit Without Foot Valve

It has the following characteristics: 

1, Out of the trouble of foot valve fracture and expansion and contraction. 

2, Lower energy consumption and higher impact  frequency.

The drilling speed is 15-30 higher than  the one with foot valve

3, Simple structure, reliable parts, long life, easy and  cheap maintenance.

4, Lower air and oil consumption. The oil consumption is  about 10%  lower than the one with foot valve.


N---DTH Hammer- 12


DTH Hammer & Bit




DTH Bit Without Foot Valve


DTH Hammer Without Foot Valve

DTH Hammer Without Foot Valve



High Air Pressure DTH Hammer (without foot valve) Technical Data

DHD/COP series DTH HAMMERS

DTH hammer   type

DHD35

DHD340

DHD350

DHD360

DHD380

DHD1120

Bit shank

IR3.5

COP44 DHD340

COP54  DHD350R

COP64  DHD360

COP84  DHD380

DHD1120

Hole   range(mm)

Φ90-115

Φ110-135

Φ135-155

Φ155-203

Φ195-254

Φ305-445

Connection   thread

API 2 3/8”   Reg.

API 2   3/8"Reg

API 2   3/8"Reg

API 3   1/2"Reg

API 4   1/2"Reg

API 6   5/8"Reg



API 3   1/2"Reg





Working   pressure

1.0-1.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

QL series DTH HAMMER

DTH hammer   type

QL40

QL50

QL60

QL80



Bit shank

QL40

QL50

QL60

QL80



Hole   range(mm)

Φ110-135

Φ135-155

Φ155-203

Φ195-254



Connection   thread

API 2   3/8"Reg

API 2   3/8"Reg

API 3   1/2"Reg

API 4   1/2"Reg




API 3   1/2"Reg






Working   pressure

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa



SD series DTH HAMMER

DTH hammer   type

SD4

SD5

SD6

SD8

SD10

SD12

Bit shank

SD4

SD5

SD6

SD8

SD10

SD12

Hole   range(mm)

Φ110-135

Φ135-155

Φ155-203

Φ195-254

Φ254-311

Φ305-445

Connection   thread

API 2   3/8"Reg

API 2   3/8"Reg

API 3   1/2"Reg

API 4 1/2"Reg

API 6   5/8"Reg

API 6   5/8"Reg


API 3   1/2"Reg






Working   pressure

1.5-2.0Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa

MISSION series DTH HAMMER

DTH hammer   type

MISSION4

MISSION5

MISSION6

MISSION8



Bit shank

MISSION4

MISSION5

MISSION6

MISSION8



Hole   range(mm)

Φ110-135

Φ155-190

Φ155-203

Φ195-254



Connection   thread

API 2   3/8"Reg

API 2   3/8"Reg

API 2   7/8"Reg

API 4   1/2"Reg




API 3   1/2"Reg

API 3   1/2"Reg






API 2   7/8"Reg

2 7/8"IF





Working   pressure

1.2-2.0Mpa

1.3-2.3Mpa

1.5-2.5Mpa

1.5-3.0Mpa



NUMA series DTH HAMMER

DTH hammer   type

NUMA100

NUMA120

NUMA125




Bit shank

NUMA100

NUMA120

NUMA125




Hole   range(mm)

Φ254-311

Φ305-445

Φ305-445




Connection   thread

API 6   5/8"Reg

API 6   5/8"Reg

API 6   5/8"Reg




Working pressure

1.0-2.5Mpa

1.0-2.5Mpa

1.0-2.5Mpa




 

Application

Application

 

Packing Picture

Packing


 



Key Words:

DTH Hammer without Foot Valve

dth hammer

dth hammer bit

dth hammer used for sale

dth hammer breakout bench

dth drill pipe

dth bit

dth drill bit

dth hammer bit

down the hole hammer drill rig

down the hole hammer

Big Hole Size DTH Hammer and Bit

Big Size DTH Bit

Big Size DTH Hammer

DTH Hammer for Water Wells, Oil, Gas and Construction Drilling

DTH Bit for Water Wells, Oil, Gas and Construction Drilling

Rotary Air Blasting


Hot Tags: high air pressure DTH hammer without foot valve, suppliers, manufacturers, factory, price
Related Products