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Dia 88.9mm Reverse Circulation RC Drill Rod For Mining

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Changsha Sollroc Engineering Equipments Co., Ltd

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Dia 88.9mm Reverse Circulation RC Drill Rod For Mining

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Brand Name :	SOLLROC
Model Number :	88.9mm-114.3mm
Certification :	SGS
Price :	negotiate
Payment Terms :	L/C, D/A, D/P, T/T, , MoneyGram
Supply Ability :	5000pcs per month
Delivery Time :	22-25 days

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Product Details
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Dia 88.9mm Reverse Circulation RC Drill Rod For Mining

Reverse Circulation RC Drilling Rods With Outer Tube And Inner Tube Black Color For Mining

Product Introduce:

Reverse Circulation RC Drilling Rods is also called Double wall drill pipe, double drill pipe or Dual Wall drill pipe. It consists of two layers of inner and outer drill pipes (called inner pipe and outer pipe). The inner and outer pipes constitute an annular gap, which is a channel for pumping the flushing medium to the bottom of the hole when hydraulic rock drilling and center sampling drilling. The central hole of the inner tube is fixed as a whole by discharging the flushing medium, and each double-walled drill pipe is connected with the screw of the outer tube to ensure transmission of torque and pressure. The inner tube is usually connected by a plug-in method, which generally only serves as a flushing medium. Therefore, a sealing device is required at the plug-in place.

Adavantages:

1.Industry leading technology and intellectual property

2.State of the art manufacturing operations, ensuring consistent quality

3.A thorough understanding of RC drilling and applications.

4.High tensile hardened tool joints

5.Seamless High tensile drill pipe and inner tube material

6.Options for additional heat treating of tool joints

7.Options for Urethane Seals to replace traditional "O" Ring setup

Specification:

SOLLROC Dual Wall RC Drill rod specification:

Pipe OD	Outer Tube			Inner Tube			Thread	Spanner Flat	Weight
Pipe OD	outer diameter	inner diameter	wall thickness	outer diameter	inner diameter	wall thickness	Thread	Spanner Flat	3M	6M
3 1/2''	88.9 mm	81.8 mm	5.3 mm	38.1 mm	32.6 mm	5.5 mm	3 1/2'' Remet	90 mm	77 kgs	125 kgs
4''	101.6 mm	94.6 mm	7.1 mm	50.8 mm	45.3 mm	5.5 mm	4'' Remet	90 mm	77 kgs	155 kgs
4''	101.6 mm	94.6 mm	7.1 mm	50.8 mm	45.3 mm	5.5 mm	4'' Metzke	90 mm	77 kgs	155 kgs
4''	101.6 mm	94.6 mm	7.1 mm	50.8 mm	45.3 mm	5.5 mm	4'' Matrix	90 mm	77 kgs	155 kgs
4 1/2''	114.3 mm	107.2 mm	7.1 mm	63.5 mm	58 mm	5.5 mm	4 1/2''Remet	90 mm	97 kgs	172 kgs
4 1/2''	114.3 mm	107.2 mm	7.1 mm	63.5 mm	58 mm	5.5 mm	4 1/2''Metzke	90 mm	97 kgs	172 kgs
4 1/2''	114.3 mm	107.2 mm	7.1 mm	63.5 mm	58 mm	5.5 mm	4 1/2''Matrix	90 mm	97 kgs	172 kgs

Working Principle:

High pressure air transported into somewhere of the well along with air pip, via mixer to inject the high-pressure air into the pipe with liquid, due to the density of mixed liquor lower than flushing liquor therefore a differential pressure occurred between pipe and sample tube that to make the mixed air and liquid flow up fleetly by the fluid column pressure and take the rock debris into powder out to the ground from bottom of the hole continuously. By this drilling method will provide with advantages like high penetration rate, quality pore-forming and fewer hole collapse rig drilling in loose formation.

This series reverse circulation pipes can increase penetration in lost-circulation formation, reduce drilling fluid consumption, protect reservoir stratum and save the cost of other consumption tools. In additional, the pipes can be worked in two direction circulation drilling ways to control the well drilling. By reverse circulation method to kill the well the heavy mud can be transferred directly to the bottom of the well, no periodic circulation and save time.

Detailed Photo:

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

Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.

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