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    Position: Home > Product
    Coring Tools(Double-tube Swivel-type Core Barrel, Soil

      P series double-tube swivel type of core barrel is widely used in engineering geological prospecting drilling and core drilling.
    This core barrel can effectively increase core recovery and intactness. Triple-tube core barrel, split inner-tube core barrel, and extend inner-tube core barrel are its derivative products. They can satisfy separately the sampling demand of core drilling, engineering geological and hydro-geological
    prospecting, inspection grouting pile and sampling of soft foundation treatment.

    Features

      1. Inimitable single-acting structure design provides good single-acting performance, reliable sealing property and long service life.

      2. Fitting up an adjustable mechanism of inner-tube (sampling tube) assembly to adjust its axial position according to geological condition, This structure design is good to raise the core recovery.

      3. Fitting up a check valve, such structure is advantageous to enter core into sampling tube.

      4. Fitting up an upper wear-proof centering stabilizer to increase the core barrel rotary stability and reduce its wear.

     
     
    Specifications
     

    Type

    P59

    P75

    P91

    P110TH

    P130TH

    P150

    Drillingbit O.D./I.D.

    φ59/φ41.5

    φ75/φ54.5

    φ91/φ68

    φ112/φ79

    φ132/φ103

    φ152/φ113

    OutertubeO.D./I.D.

    φ58/φ51

    φ73/φ65.5

    φ89/φ81

    φ108/φ99

    φ127/φ118

    φ146/φ137

    InnertubeO.D./I.D.

    φ47.5/φ43

    φ62/φ56.5

    φ77/φ70

    φ89/φ81

    φ112.5/φ105

    φ127/φ118

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