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       E-mail: sales@quarryingtools.com


       Address: Unit 8001, Part A, Minnan Culture Town, 

       No.350, Changle Road, Huli, Xiamen China.361006


                   




New Condition DTH and HDD Hope Opener Bit for Soft and Hard Formation Groundwater Drilling

new condition DTH and HDD hope opener bit for soft and hard formation groundwater drilling

Horizontal Directional Drilling (HDD) Hole Openers

Volume discounts available.

Horizontal Hole Openers are used to enlarge the pilot hole in Horizontal Directional Drilling(HDD) - HDD is used when trenching and excavating is not practical. This drilling technology allows for a steerable trenchless way to drill underground. There are three stages, the first stage is to drill a small diameter pilot hole. The second stage is enlarge the hole with a larger diameter cutting tool called a Reamer or a Hole Opener. The third stage is inserting the casing pipe or other product into the enlarged hole.

 

1. HDD ROCK REAMER (HDD HOLE OPENER BIT)

HDD Rock Reamer ( Hole Opener ) mainly consists of four or more roller cones. Cutting Structure with premium tungsten carbide hard facing or premium tungsten carbide insert of formulas and new techniques is utilized, and increases wear-resistance capability of rock reamer. Hole opener with interchangeable cutters

Available roller cone with sealed bearing or metal sealed bearing. 
Seal and Lubrication: High performance HNBR O-ring for bearing seal and advanced grease for lubrication. 
Application: Suitable for the HDD /trenchless applications

How to do replaceable hole opener :

1. Drillers always drill a smaller hole at first, then enlarger it with hole opener, it is a type of regular drilling technology when the drilling machine is lower power or the end-hole is too big. 
2. We can make the hole opener and solutions according to the hardness of rocks, drilling depth, size of pilot hole, size of end-hole. 
3. If fix the tricone bits as the pilot bits, the hole opener will be a rock bits, hole opener with tricone bits as pilot bits is always applicable in special sizes well drilling

 

For top hammer drilling, we can supply Dome or Integral Reaming Tools for hole opener, including reaming rings, and pilot bit.

For rotary Drilling, also we can supply HDD rock reamer, pilot bit is tricone bit

 

Bestlink offer the Drilling Contractor a large range of  Rock Reamers (HDD Hole Opener)

  

Range  8 ½” to 12” Diameter

Range 12” to 20” Diameter

Range 16” to 26” Diameter

Range 24” to 34” Diameter

Range 32” to 42” Diameter

Range 42” to 52” Diameter

 

Range  8 ½” to 12” Diameter 

Range 12” to 20” Diameter 

Range 16” to 26” Diameter 

Range 24” to 34” Diameter 

Range 32” to 42” Diameter 

Range 42” to 52” Diameter 

 

1. DTH ROCK REAMER (DTH HOLE OPENER BIT)

DTH hole openers are used to enlarge the size of a pilot hole most commonly used in industrial applications. Benefits of drilling a smaller pilot hole and then using a hole opener are:

 

The ability to use less powerful equipment than that required to drill the large diameter hole

Straigher holes result from the smaller pilot hole

Better clearing of cut material

We Supply a large variety of Hole Openers on the shelf, and if we don't have what you're looking for we can have one custom-made to your specific application.

Specifications

  1. Flat,concave and convex faces

  2. Simple structure

  3. Easy operation

  4. Certificate: ISO9001:2008

  5. long service life


Features:  

  1. applicable hard,very hard and medium soft rock formations.

  2. Reliable quality, long service life,  rare abnormal breakage during service life.

  3. Good flushing effect to ensure high drilling rate

  4. Strict quality warranty and compensation rules


Hole Opener DTH bit

Remark

 

 

 

Qty.× Button Dia.(mm)

 

Shank

GuideDia. (1)

Reamed Dia.

Weight

 

(mm)

(mm)

(kg)

 

 

 

 

Outer

Front

 

For 3.5" hammer

DHD3.5

95

130

6×14+

4×11+3×11

8.5

2×14

 

DHD3.5

80

165

8×14

8×13+6×11

15.1

 

100

165

8×14

4×13+4×12+3×12

14.5

 

DHD3.5

110

165

8×14

4×13

15.2

 

100

165

8×14

4×13+4×12+3×12

14.5

 

 

115

171.5

9×16

6×14

16.1

For 5" hammer

DHD350R

75

152

8×18

6×14+2×14+2×14

35.2

For 6" hammer

DHD360

165

191

10×16

3×14+4×14

74.5

 

DHD360

108

220

10×18

12×18+2×14+2×14

79.3

 

DHD360

165

254

12×18

12×16+4×14+5×14

65.3

For 8" hammer

DHD380

140

200

10×18

8×12+2×14+4×14

10.6

 

DHD380

188

254

22×18

2×18

147.4

 

DHD380

152

305

14×18

10×18+16×16

107.8

 

DHD380

210

381

16×18

28×18

120.5

For 12" hammer

DHD112

216

312

18×18

15×18+6×16+6×14

133.6

 

DHD112

254

375

18×18

12×18+15×18

136.2

 

DHD112

311

444.5

18×19

15×19+21×19

328.5


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