General Features ;  
    1) Easy  to assemble & overhaul (Simple design
        with less consumables). 
    2) Long life time with stable function (precisely machined
        with high quality materials).
    3) Sufficient funtion both under low pressure & high pressure
       (Powerful blow energy strikes the bits under dynamic design). 
    4) Air consumption rate can be controlled by adjusting the plug
        in the hammer.
    5) Easy slime discharge with maintaining the internal air
        exhaust velocity.
    6) Submersible operation underwater is possible with
        the built-in backward flow  protection valve.  

   Hammer Bit          
   Assembly       
       

 Equipped with  Hammer Bit
 

   Specifications ;
        1) Down Hole Hammers ; 
             a) Big Down Hole Hammers ; (Details per the separate chart below)
                   - No. of types ; 6 kinds / Bit capacity (mm) ; from 380~450 to 750~850,
                   - Dimensions (mm) ; from OD320xL1,903x870kg to
                         OD710xL2,040x5,180kg,
                   - Air consumption rate (at 200 psig) ; 1,500~3,230 SCFM.
             b) Small Down Hole Hammers ; 
                   - No. of types ; 6 kinds / Bit capacity (mm); from 105~127 to 300~435,                  
                   - Dimensions (mm) ; from OD92xL1,052x32kg to OD275xL1915x540kg.
                   - Air consumption rate (at 200 psig) ; 365~ 1,250 SCFM.                 
       2) Kodex Bits ; (used at unstable ground conditions preventing
                               the damage of shaft wall and making easy drilling)
                   - Drilling & Casing operation can be done simultaneously,
                      protecting unstable wall and continuous drilling is possible.   
                   - Drilling & Casing through overburden areas like sand, clay or gravel.     
                   - The most economical & efficient operation method, preventing short life
                      of the bits (breakage of bits) due to deformation of the casing end areas
                      caused by forced insert of the casings during the conventional job.    
                   - Kodex bit is made of 3 parts ;- Pilot bit, Eccentric reamer & Guide device.
                   - 3 Steps of Drilling operation with Kodex Bit;-
                     1. Drilling (Expanded) ;- The Eccentric Reamer area is expanded to make                          the sufficient wide hole during Drilling.   The Casing comes down by
                         impact of Guide device thru this wide hole.   The Slime comes out thru
                         the specially designed Grooves via Guide device to the exit.
                     2. Retraction (Folded) ;- The Kodex bit is folded into a smaller diameter.
                     3. Base Rock Drilling (Normal Bit Drilling) ;- For the base Rock Drilling,
                         where no Casing is required, replace with the normal bits.
             - Kodex bit Specifications ;- (Details per the separate chart below)
                        - No. of types ; 7 kinds  (For 5"~16" pipe)
                        - Casing tube (OD/ID) ; 139.8/130.1 ~ 406.4/390.6  
                        - Reamer dia.;- ик152 ~ 450                           
       3) Button Bits ;
                  - Drop Center Bit, Flat Face Bit, Double Gauge Bit
                  - Bit material is well resistant to flaking, abrasion & impact.     
                  - Bit is carefully heat-treated under close control in order to
                     get high degree of fatigue strength, elasticity &
                     hardness.                                      

   Big  Hammer
            

Small Hammer
 

     Kodex Bits
    
     Skech of Kodex Bits
  

   Applications ;
        a) The above Down hole hammer & Bit is widely applicable to ;- reformation of the ground base, development
            of the underground water & hot spring water, supply of agricultural water & industrial water.
        b) All kinds of civil base works, big apartment bases, collection of base rocks, etc., widely applicable.
        c) From soft rock to super hard rock, showing the high drilling capability with powerful energy, it is
            generally used in various drilling/boring operations with efficient & economic way.

   Other Products ;               (Roller Cutter)(Concrete Bit)(Reaming Bit)                     (Mining Bit) (Tricone Bit)(Auger Bit)
                                                                         

                   Specification Table

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