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QL 50 5" 5 inch high air pressure DTH down the hole hammer without foot valve valveless without

  • Brief info:QL 50 5" 5 inch high air pressure DTH down the hole hammer without foot valve valveless without tungsten carbide on the top sub, US $ 250 / Piece, Hunan, China, ADRILLER, DTH hammer.Source from Changsha Adriller Machinery Co., Ltd. on Alibaba.com.
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QL50 QL 50 5" 5inch 5 inch DTH down the hole hammer

 

 

Product Description

 

 

 

 

advantages:

 

 

1. Non-Blocking:Our S-series DTH hammers are proved to ensure extremely low rate of blocking during it works.

2. High Efficiency:The well drilling equipment carries with larger power of impact frequency and torque, thus ensuring faster penetration. Compared with others, the efficiency can be improved 10%.

3. Longer Service Life:All surfaces of the DTH hammer and bits are treated by anti-friction and intensified technology. When used in deep-hole drilling works, it can reach at 5000 meters or more.

 4. Excellent Cleaning Effect: This DTH tool has large air output, which specially designed for water well users and enables it to flush out cuttings in deep hole drilling works.

 

Scope of application:

Mining, quarry, road building, well hole drilling, blasting, landslide prevention, dam reinforement, anchoring, geothermal, hydrology, etc

 

Different size and shank types of DTH Bit

 

1 .Low air pressure hole Dia.:65-220mm  

2.High air pressure hole Dia.:85-305mm  

3.Face type:drop center/concave/convex/double gauge/flat  

4. Our DTH Bit can be suitable for many types of DTH Hammer shank, including Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.

 

 

DTH bit Type

Diameter: (mm)

Weight: (kg)

Low air pressure CIR series DTH bits

68 ~ 200

2.6 ~ 48

Low air pressure J series DTH bits

65~220

2.2~45

Middle air pressure BR & COP DTH bits

76 ~ 110

3.8 ~ 15

3 inch high Air pressure DTH bits                     (COP32/BR3/HD35/IR3.5/COP34/QL30)

85 / 90 / 95 / 100 / 105

4.2 ~ 5.5

4 inch high Air pressure DTH bits                     (DHD340/COP44/SD4/QL40/MISSION4)

105 / 110 / 115 / 120 / 127

9 ~ 12

5 inch high Air pressure DTH bits                   (DHD350R/COP54/SD5/QL50/MISSION5)

133 / 140 / 146 / 152 / 165

15 ~ 18.5

6 inch high Air pressure DTH bits                      (DHD360/COP64/SD6/QL60/MISSION6)

152 / 165 / 178 / 190 / 203

26 ~ 36

8 inch high Air pressure DTH bits                       (DHD380/COP84/SD8/QL80/MISSION8)

195 / 203 / 216 / 254 / 305

33 ~ 95

10 inch high Air pressure DTH bits                            (SD10/NUMA100)

254/305/311/330

90~155

12 inch high Air pressure DTH bits                       (DHD1120/SD12/NUMA12/NUMA125)

305/311/330/346/356/381

150~200

 

 

Carbide Selection

 

Carbide Designs

Perhaps the most fundamental decision when selecting different carbide

 configurations is profile shape. Button bits most commonly have either a hemispherical

or semi-ballistic carbide design; however it is not uncommon to use other carbide designs as well.

 

Faster

Shorter lifetime and susceptible to breaks : Conical  Full Ballistic

 

Penetration rate:

Tungsten carbide life time. Semi Ballistic

 

Slower

Longer lifetime and less susceptible to breaks: Crown Point and Hemispherical

 

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