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Eccentric Casing System

  • Eccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling System
  • Eccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling System
  • Eccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling System
  • Eccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling System
  • Eccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling System
Eccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling SystemEccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling SystemEccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling SystemEccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling SystemEccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling System

Eccentric245-HD85-208 Eccentric Drill Bit For Odex Casing Drilling System 245mmReliable Odex Drilling System

    Casing inner diameter:225mm
    The Max Wall Thickness:10
    Reamed diameter:264mm
    Inner diameter of Casing Shoe:210mm
    Pilot Bit Can Pass Through:208mm
    Drill Pipe:114mm
    Match Hammer:DHD380 QL80 HD85

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Product Description:


1629426777706954.jpg Eccentric casing systerms DTH Bit is very popular in international water well and ore drilling field.

It is a down-hole air hammer system that is designed to advance casing during drilling. Once a desired depth is reached they eccentric bit can be retrieved leaving the casing in place for sampling or installations.When the bore-hole is complete, the casing is retrieved to be used again.




1629426801125537.jpg











 Advantages:

1.Rapid removal of cuttings;

2.No use of drilling mud;  3.High penetration rate, especially in resistant rock formation (e.g. basalt);  4.Easy soil and groundwater sampling during drilling;  5.Possible to measure yield estimate at selected depth in the formation;


Model Number

Outer Dia.(A)mm

Inner Dia.(B)mm

The Max Wall Thickness

Reamed 

Dia.(C)mm

Eccentric178-HD55-146

245

225

10

264

Inner Dia. of Casing  Shoe(D) mm

Inner Dia. Of casing shoe that pilot bit can pass through

Type of Hammer Recommended

Hammer Type(E)

Drill Pipe

mm

210

208

DHD380

DHD380 QL80 HD85

114



1629428493378562.jpg




Model Number

Outer Dia.(A)mm

Inner Dia.(B)mm

The Max Wall Thickness

Reamed 

Dia.(C)mm

Eccentric178-HD55-146

183

163

10

200

Inner Dia. of Casing  Shoe(D) mm

Inner Dia. Of casing shoe that pilot bit can pass through

Type of Hammer Recommended

Hammer Type(E)

Drill Pipe

mm

152

150

DHD350R

DHD350R QL50 HD55

76/89

Related Products

Using Effects

Hardening treatment of the part's surface
with longer operating life and excellent anti - wear properties.

Structural optimization
Strengthen the structural strength, easy to operate


Superior performance
Stable and reliable performance, high drilling speed


Contact us

Certificate


Certificate of conformity

Packing & Delivery

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

Company Introduction

     Changsha DTH Drill Construction Machinery Co., Ltd has more than 20 years of drilling tools industry since 1996. Its predecessor was the designated processing workplace of down-the-hole drilling tools of Changsha Institute of Mining Research. It is the Institute of Metal Research of the Chinese Academy of Sciences, the National Institute of Materials Research (NIMS) of Japan, and the partner of University of Queensland, Australia, the Swiss Federal Institute of Technology (EMPA).

FAQ

1. Are you exact manufacturer or just trading company?
We are both,we have our own factory. And also have many long-relationship factories.

2.What is your minimum order quantity?
Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity. We are welcome your sample order to testing our
quality。

3. Can you accept OEM & ODM?
Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly.
As we have our own R&D team and the team leader is Dr.Zhao mingchun who has been always
in the material research and drawing design of drilling tools for 25 years.And he had designed
the world’s biggest top hammer bit and DTH hammer bit, highly praised by the users.

4. How about Packing
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation.
Also, we can customize package according to your special requests.

5. How about the delivery time?
It depends, generally it takes about 15-25day. If have stocks, Usually only 5-10 days if in stock.

6. Can I have a visit to your factory before the order?
Sure, welcome, kindly contact us for address details and time schedule.

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