Rotary Coring 412F Series

The Rotary Coring 412F series is a range of components which produces a 75mm core suitable for soft to medium hard geology. It uses a thin wall double tube core barrel used in combination with metric casing and is easily converted to a triplex system with the addition of a Coreliner for...

Product Details

The Rotary Coring 412F series is a range of components which produces a 75mm core suitable for soft to medium hard geology.

 

It uses a thin wall double tube core barrel used in combination with metric casing and is easily converted to a triplex system with the addition of a Coreliner for increased core recovery.

 

It comprises of a core barrel head, inner and outer tubes, extension tube, core lifter, reaming shell and core bit. Different types of lifters, reaming shells and core bits need to be selected according to the application and geology.


Application:

1. Geotechnical investigation

2. Open cast mining exploration

 

Rotary Coring Features:

1. Suitable for medium to hard geology

2. Double barrel system

3. Designed for soft to medium hard geology

4. Can be converted to triplex system with coreliner

5. Suitable for air flush

6. Good for coring with PDC bits

7. Barrel head thread to suit individual requirements

Barrel Sizes

412F Standard

412F CL

Hole Diameter (mm)

107.19/106.88

107.19/106.88

Core Diameter (mm)

75.38/74.98

72.99/72.69

Kerf / Crown Thickness (mm)

16.25

17.1

Cutting Area (cm2)

46.5

46.5

Hole Area (cm2)

90.3

90.3

Cutting Area as % of Hole Area

51.4

51.4

Core Area (cm2)

44.63/44.16

41.847/41.504

Thread Connection in Head*

HW

HW

Recommended Casing

PW

PW


Core Bit Dimensions

Size

Outside Diameter (mm)

Inside diameter (mm)

412F

107.19/106.88

75.38/74.98

412F Coreliner

107.19/106.88

72.99/72.69

*Cross-over sub required for drill rods not matching the thread connection in core barrel head


ROSCHEN GROUP is professional in manufacturing and supplying quality rotary coring 412f series as one of the leading manufacturers and suppliers in China. We now bring you high quality rotary coring 412f series for sale, competitive in its excellent performance and high precision. Please rest assured to buy.
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