Core barrels and cutters

Core barrels and cutters of any design for any kind of drill rigs

Core barrels

Core barrel is a tool designed for drilling firm fractured rocks. During operation the soil can accumulate in the core barrel body as a core; after barrel pulling out of the well the soil is tapped out through the windows in the body and the roof. «PTC «ERDE TOOLS» has the capacity to manufacture core barrels with diameters of 350 mm up to 2,000 mm for any drilling rigs with kelly boxes of 100*100 mm to 200*200 mm.

Core cutters
Core cutter is a tool designed for cutting holes through mass concrete and thick rocky soil layers. In the course of the work, soil in the form of a core can accumulate in the core cutter body; after cutter pulling out of the well, the soil is tapped out through windows in the body and roof.
Technical data

Core barrel KRR

Hard fractured rock (used for drilling ground of categories 5-9)
Drilling diameter, mm Casing outer diameter, mm Weight, kg Overall dimensions LxDxD, mm Operating length, mm Number of teeth
520 620 530 1745х520х520 1200 6
650 750 660 1745х650х650 1200 9
700 800 720 1745х700х700 1200 9
780 880 800 1745х780х780 1200 12
900 1000 920 1745х900х900 1200 12
1360 1180 1120 1745х1060х1060 1200 15
1350 1500 1550 1745х1350х1350 1200 21
1500 1650 2150 1745х1500х1500 1200 21
1820 2000 2830 1745х1820х1820 1200 27

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Various types of rock teeth
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Progressive core barrel KRRP

Hard fractured rock (used for drilling ground of categories 5-9)
Drilling diameter, mm Casing outer diameter, mm Weight, kg Overall dimensions LxDxD, mm Operating length, mm Number of teeth
900 1000 1540 2050х900х900 1550 16
1060 1180 2300 2060х1060х1060 1550 27
1350 1500 2900 2060х1350х1350 1550 28
1500 1650 3200 2060х1500х1500 1550 40
1820 2000 3950 2060х1820х1820 1550 57

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Various types of rock teeth
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Cross-cutter KRRX

Hard fractured rock (used for drilling ground of categories 5-9)
Drilling diameter, mm Casing outer diameter, mm Weight, kg Overall dimensions LxDxD, mm Operating length, mm Number of teeth
520 620 840 1940х520х520 1200 16
650 750 110 1940х650х650 1200 21
700 800 1070 1940х700х700 1200 23
780 880 1200 1940х780х780 1200 25
900 1000 1320 1940х900х900 1200 25
1060 1180 1530 1940х1060х1060 1200 28
1350 1500 1980 1940х1350х1350 1200 38
1500 1650 2300 1940х1500х1500 1200 43
1820 2000 3220 1940х1820х1820 1200 52

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Various types of rock teeth
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Core cutter KR

For cutting holes through mass concrete or rocky soil
Drilling diameter, mm Casing outer diameter, mm Weight, kg Overall dimensions LxDxD, mm Operating length, mm Number of teeth
520 620 530 1730х520х520 1200 8
650 750 660 1730х650х650 1200 10
700 800 705 1730х700х700 1200 10
780 880 780 1730х780х780 1200 12
900 1000 870 1730х900х900 1200 14
1060 1180 1030 1730х1060х1060 1200 16
1350 1500 1510 1730х1350х1350 1200 22
1500 1650 2090 1730х1500х1500 1200 24
1820 2000 2640 1730х1820х1820 1200 28

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Various types of weld-on casing teeth
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Core cutter KRD

For cutting holes through mass concrete or rocky soil (categories 5-9)
Drilling diameter, mm Casing outer diameter, mm Weight, kg Overall dimensions LxDxD, mm Operating length, mm Number of teeth
520 620 520 1730х520х520 1200 8
650 750 650 1730х650х650 1200 10
700 800 700 1730х700х700 1200 10
780 880 770 1730х780х780 1200 12
900 1000 860 1730х900х900 1200 14
1060 1180 1010 1730х1060х1060 1200 16
1350 1500 1490 1730х1350х1350 1200 22
1500 1650 2020 1730х1500х1500 1200 24
1820 2000 2580 1730х1820х1820 1200 28

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Various types of replaceable casing teeth (categories 5-9)
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Roller-bit core barrel

For cutting holes in strong rock with density from 100 to 250 MPa
Drilling diameter, mm Casing outer diameter, mm Weight, kg Overall dimensions LxDxD, mm Operating length, mm Number of teeth
780 880 1220 2165х780х780 1700 4
900 1000 1410 2165х900х900 1700 6
1060 1180 1680 2165х1060х1060 1700 8
1350 1500 2140 2165х1350х1350 1700 8
1500 1650 2380 2165х1500х1500 1700 8
1820 2000 2880 2165х1820х1820 1700 10

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Roller bit on a support
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Description and photos

Photos