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Construction Bit Drilling Core Barrel Cutter Teeth Roller Bits Rock Layers

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Construction Bit Drilling Core Barrel Cutter Teeth Roller Bits Rock Layers

Brand Name : KonDaSin
Model Number : Core barrel
Certification : ISO9001
Place of Origin : China
MOQ : 1 piece
Payment Terms : T/T, L/C, Western Union
Supply Ability : 10 Pieces per Day
Delivery Time : 7 working days
Packaging Details : iron support +film protect
Name : Construction drill bit
Application : For strong rock layers
Machine Type : Drilling tool
Material : Q345B
Usage : Rotary piling machine
Shell height : 800~1200mm
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Construction Bit Drilling Core Barrel Cutter Teeth Roller Bits Rock Layers

The most important advantage of a core barrel is that it assists to concentrate the torque and crowd force on a small ring of cutting teeth.

Cutting a ring in rock or concrete and slightly reinforce concrete is the main application of core barrel,the center core of the rock or concrete is usually crushed with rock bits.

Drilling core barrel is suitable for medium or slightly weathered rock, hard or superhard bedrock layers.

Core barrel with rock bits or roller bits for different hard formation projects:

1. Core barrel with bullet bits (Applicable for strong rock up to 100Mpa or rock with deep cracks)

2. Core barrel with roller bits (Applicable for very strong rock formations with compressive strength greater than 100Mpa)

To fit different type of Kelly bar stubs, the drilling tool boxes may be made in dimension as per clients’ specific request (such as 200x200mm, 150x150mm or 130x130mm, etc.).

ModelCutting Dia.Shell HIT.Shell THK.Stiffening Ring THK.Stiffening Ring HIT.Teeth No.Weight

Core Barrel

with

Bullet Teeth

φ600120016202006520
φ800120016202009672
φ9001200162020010750
φ10001200162020011847
φ120012001620200131010
φ150012001620200161370
φ160012001620200171493
φ180010002020200191841
φ20008002020200211852
φ22008002020200232329
φ25008002020200272705
φ28008002020200303200
φ30008002020200323800

ModelSizeHeight

Bucket

Thickness

Stiffening

Ring Thickness

Stiffening

Ring Thickness

No of

teeth

Weight

Core Barrel

with Roller Bits

φ600120016202004545
φ700120016202006635
φ800120016202006725
φ900120016202006810
φ1000120016202008900
φ1100120016202008990
φ12001200162020091080
φ12501200162020091120
φ13001200162020091170
φ140012001620200101270
φ150012001620200101370
φ160012001620200101460
φ170010002020200111560
φ180010002020200121830
φ190010002020200121928
φ20008002020200132050
φ22008002020200142090
φ25008002020200152420
φ28008002020200163000
φ30008002020200183500

1.Small barrel facilitates the coring operation; large barrel performs stage breaking.

2. Cutting ring with rock drilling bits and roller bits release the internal stress of rock.

3. Rock drilling bits perform stage breaking and drilling.

4. Drilling with the method of rolling and squeezing can increases the anti-wear ability of the barrel.

Applicable for Applicable for strong rock up to 100Mpa or rock with deep cracks.

Applicable for very strong rock formations with compressive strength greater than 100Mpa




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Construction Bit Drilling Core Barrel Cutter Teeth Roller Bits Rock Layers Images

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