PCONE

Under-reaming SystemPCON-E

The Pneumec PCON-E underreaming system is the economical version of the P-CON system.  Its concentric design consisting of only a driver bit and reamers makes the system very easy to operate and maintain.  At the beginning of the operation, the ramers are in the closed position to allow the system to pass through the casing shoe.  When drilling commences, the ramers will open up when rotating in clockwise direction, and ream a large enough hole to allow the casing to be carried down the hole.  The PCON-E system has a complete flat face when the reamers are opened, and this effectively improves the penetration rate of the drilling.


 PCON-E UNDERREAMERS’ CHOICES

 MODEL

DRILLING DIA.

RETRACTED DIA.

CASING

SHANK TYPE

O.D.

I.D.

PCON-E 190

238MM

    190MM

  219MM

203MM

QL6,SD6, DHD360

PCON-E 215

276MM

    215MM

  254MM

240MM

QL8, SD8, DHD380

PCON-E 240

293MM

    240MM

  273MM

260MM

QL8, SD8, DHD380

PCON-E 280

345MM

     280MM

   323MM

302MM

SD-10

PCON-E 365

432MM

      364MM

    406MM

387MM

SD12, N125

PCON-E 460

530MM

       460MM

    508MM

483MM

N125, N180

PCON-E 510

 580MM

        509MM

     559MM

533MM

N180

PCON-E 560

 635MM

        560MM

     610MM

584MM

N180, N240

PCON-E 610

 685MM

        600MM

     660MM

632MM

N240

PCON-E 660

735MM

        656MM

    711MM

685MM

N240

PCON-E 745

838MM

      745MM

   813MM

780MM

N240