0731-8833 3338 Lily@csdrill.com

Symmetric Casing System

  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
  • Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system
Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing systemSymmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system

Symmetric overburden drilling systems outer diameter 168mm Underground Water well Drilling, casing system

    Casing inner diameter:148mm
    The Max Wall Thickness:10
    Reamed diameter:182mm
    Inner diameter of Casing Shoe:138mm
    Pilot Bit Can Pass Through:125mm
    Drill Pipe:76/78mm
    Match Hammer:DHD350 /QL50

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Product Description:

Product Description

    The Pro Drill symmetric/Concentric drilling system is designed to drill and case a hole simultaneously through unstable ground conditions. The driver bit incorporated with a satisficial ring or reusable ring makes a full face head design which significantly improves the penetration rate and hole straightness of drilling. The internal flushing grooves together with the built-in casing shoes gives a good seal to the button of the drilling hole, and thus minimizing the disruption of the surrounding of the drill hole.

 Advantages:

- Straight Holes and Fast Penetration Rate. - Less Torque in all ground conditions. - Easy System to lock and Unlock Ring. - Drilling at any angle required. - More Holes and Low investment

Model Number

Outer Dia.(A)mm

Inner Dia.(B)mm

The Max Wall Thickness

Reamed 

Dia.(C)mm

Symmetric168-HD55-125

168

148

10

182

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

138

125

DHD350

DHD350  QL50

76/89



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

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Application

Where To Use

All our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project.

Related Products




Certificate

      Patent Certificate

      Quality  Certificate 

       Certificate Of Conformity

Packing&Shipping

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).

Our Services & Strength

Focus on DTH drilling tools 20+ years, Efficient and Long life.

FAQ

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.



Inquiry: