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Core Barrel
Home> Products >  Drill Tools >  Core Barrel
Downward guide positive reaming barrel drill
Downward guide positive reaming barrel drill
Downward guide positive reaming barrel drill
Downward guide positive reaming barrel drill
Downward guide positive reaming barrel drill
Downward guide positive reaming barrel drill

Downward guide positive reaming barrel drill

Triple-nested guide barrel drill for hard rock. Ensures concentricity, verticality. Full custom specs & roller bits.

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Product Description
Model List
Cutting Dia
Outer Shell HIT
Outer Shell OD
Inner Shell THK
Inner Shell OD
Shell THK
Teeth No.
Weight
&1000
1200
900
1400
550
20
17
1115
&1200
1200
1100
1400
650
20
20
1323
&1500
1200
1400
1400
750
20
24
1775
&1600
1200
1500
1400
850
20
   27
1965
&1800
1000
1700
1100
950
20
29
2361
&2000
900
1900
1100
1050
20
33
2690
&2200
900
2100
1100
1150
20
36
2969
&2500
900
2400
1100
1250
20
42
3318
&2800
900
2700
1100
1450
20
46
3997
&3000
900
2900
1100
1550
20
49
4633
Remark: All measurements are in millimeters, weight in kilograms.
Feature
The barrel adopts a three-section nested barrel design with welded connections, equipped with roller cone cutters;
Applicable strata: Hard rock drilling with stepwise reaming to ensure concentricity of different pile diameters, improving borehole verticality and drilling efficiency.
Customizable Items
Cutting DIA,Custom:design various cutting diameter based on demand,like&950 &1050 etc.;
Shell HIT.Custom: design as demand,prolong or shortten,increase of efficiency by drilling more;
Key Component Reinforce Custom:strengthen the key component to extend life cycle;
Kelly Box Custom: custom kelly box size based on the kelly bar, like150*150 200*200 250*250 etc;
Teeth No. Custom: Encrypt the drilling teeth based on demand etc;
Roller Bits Custom: New roller bits,used roller bits and detachable roller bit design as demand;
 Product Details
Downward guide positive reaming barrel drill manufacture

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