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ADVANCED MULTI-PURPOSE SYSTEM FOR CASING ADVANCEMENT

STRUCTURE AND FEATURE

ULTRA MAXBIT

a

 High speed and straight drilling in wide range of ground conditions

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 Stiff connecting structure

    between ring bit and casing shoe

(Thread connection type)
  • Single pass model
  • Normal model
  • Top hammer model

(Standard-connected to DTH Hammer)

(Big Bore-connected to DTH Hammer)

(Interlinked type)
  • Multi use model
  • Big bore model

Piling construction

(Permanent casing)

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 Easy lock system

Unlocked

(Insert or pull out position)

Locked

(Drilling position)

Reverse

rotation

Pilot bit

Casing shoe

Ring bit

Casing pipe

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 Pilot bit

• Big bore type is available. 

This new and improved model offers additional 

strength when drilling larger bore holes.

• Single impact shoulder.

• Pilot Bit is manufactured in three models, Single, 

Normal and Multi pass models.

• Twin impact shoulders.

(Top hammer-connected to threaded rod)

• Top hammer type with R32, T38, T45, T51 

thread is available.

• Twin impact shoulders.

• Easy and speedy set-up.

• ULTRA MAXBIT is used for simultaneous drilling and casing  in unstable soft ground formations. 

• ULTRA MAXBIT is also applicable for wide range of ground conditions such as sand, gravel and boulders and rock. 

• The dual bit system also allows vertical, horizontal, and even inclined drilling.

*

 Assembled in the factory 

  cannot be disassembled.

*

 Easy to assemble or 

   disassemble at Job-site.

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 Working types example

So

ft

 grou

nd

Ro

ck

Drilling

Pull out a

pilot bit

Grouting

Fig.1