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4 Inch Shank SRC004 RC Drill Bit For Mining , Reverse Circulation Drilling

Name: 4 Inch Shank SRC004 RC Drill Bit For Mining , Reverse Circulation Drilling
Brand: Changsha Sollroc Engineering Equipments Co., Ltd

4 Inch Shank SRC004 RC Drill Bit For Mining , Reverse Circulation Drilling Product Introduce: Reverse Circulation drilling, or RC drilling, is a method of drilling which uses dual wall drill rods that consist of an outer drill rod with an inner tube. These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow.Reverse circulation. The course of drilling fluid downward through the annulus and upward through the drill stem

Usage Hole Drilling In Mines,Hydrology,exploration and gravel stratum

Place of Origin China

Packaging Details Cartons + ply wood case (no plastic)

Color Black or you wanted

Material High Carbon Steel

Model Number SRC004 RC bit

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Product Description

4 Inch Shank SRC004 RC Drill Bit For Mining , Reverse Circulation Drilling

Product Introduce:

Reverse Circulation drilling, or RC drilling, is a method of drilling which uses dual wall drill rods that consist of an outer drill rod with an inner tube. These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow.Reverse circulation. The course of drilling fluid downward through the annulus and upward through the drill stem, in contrast to normal circulation in which the course is downward through the drill stem and upward through the annulus. Seldom used in open hole, but frequently used in workover operations.

Adavantages:

A higher percentage of uncontaminated cuttings

Drilling rate similar to open hole drilling, but can often be faster and penetrate greater depths

One of the most accurate drilling methods

Quick retrieval of sample rates

Dry samples allow for easier analysis

Woring Principle:

By using compressed air to extract rock fragments sample,the samples travel through rods to a sample splitter at surface, avoiding all contact between the samples and the borehole wall that allows samples to be retrieved with minimal contamination.

Specification:

SOLLROC RC BIT model SRC004

Diameter		Buttons * button diameter		Button angle	Flushing holes	Shroud diameter (mm)	weight (kg)
mm	inch	Gauge	Centre	Button angle	Flushing holes	Shroud diameter (mm)	weight (kg)
114	4 1/2	8*14mm	8*13mm	35	2	112	11.8
118	4 5/8	8*14mm	8*13mm	35	2	116	12
121	4 3/4	8*14mm	8*13mm	35	2	119	12.4
127	5	8*14mm	8*14mm	35	2	125	12.8

About us:

SOLLROC Reverse Circulation drilling (RC) ,from size 3’’ to 5.5’’, is a technique of drilling that uses dual wall drill rods that consist of an outer drill rod with an inner tube. By using compressed air to extract rock fragments sample,the samples travel through rods to a sample splitter at surface, avoiding all contact between the samples and the borehole wall that allows samples to be retrieved with minimal contamination,which is mainly used in deep hole exploration and mining grade control.

Delivery Way:

By Air, By express or By Sea

Package :

Ply-wooden cases + pallet