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35 Bar OD120.5mm SRC004 Reverse Circulation Hammer

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Changsha Sollroc Engineering Equipments Co., Ltd

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35 Bar OD120.5mm SRC004 Reverse Circulation Hammer

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Brand Name :	SOLLROC
Model Number :	4'' SRC004 RC Hammer
Certification :	SGS
Price :	negotiate
Payment Terms :	L/C, D/A, D/P, T/T, , MoneyGram
Supply Ability :	5000pcs per month
Delivery Time :	15-22 days

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Product Details
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35 Bar OD120.5mm SRC004 Reverse Circulation Hammer

High Air Pressure SRC004 Reverse Circulation Drill Hammer For Exploration

Product Introduce:

R.C. Drilling,referred to as "Center Sample Recovery" or "Dual Wall Drilling", employs a Dual Wall Pipe where the drilling medium, normally high pressure air,is passed between the outer and inner tubes down to the face of the drilling bit where it is returned up the centre tube along with the sample cut by the drill bit.

Specification:

SOLLROC RC hammer model SRC004:

Overall Length (less bit)	1252mm
Weight (less bit)	52kg
External Diameter	107mm
Fit bit shank	SRC004
Hole range	115-127mm (4 1/2''-5'')
Top sub thread	3.5" Remet / 4'' Remet / 4'' Metzke
Working presure	15-35 bar
Impact rate at 2.4 Mpa	40Hz

Bit SRC004 specification:Data reference by drop center face bit

Diameter		No.*Button Dia(mm)			Recommended Shroud dia(mm)	Approx Weight (kg)
mm	inch	Gauge button	Center button	Center	Recommended Shroud dia(mm)	Approx Weight (kg)
115	4 1/2''	8*14mm	6*14mm	2*14mm	113	11.8
121	4 3/4''	8*14mm	6*14mm	2*14mm	119	12.2
124	4 7/8''	8*14mm	6*14mm	2*14mm	122	12.6
127	5''	8*14mm	6*14mm	3*14mm	125	12.9

Adavantages:

1.No contamination
The R.C. System collects sample through the recovery holes in the face of the drill bit immediately as the cuttings or sample is formed.The drilled sample does not have to travel the length of the hammer where contamination and loss of sample takes place.

2.Higher Production
In broken and fractured ground conditions, the R.C. will often out perform the conventional hammer in terms of penetration rates.

3.Dry Sample
Even in certain water bearing stratas it is still possible to collect a dry sample because the cuttings(sample) are collected as they formed through the face of the drill bit.

4.Higher Sample Recovery
Because the sample is collected through the face of the drill bit there is no loss of sample when drilling through broken or fractured ground. And since the bit matched to the chuck size,there is very little bypass of sample and recovery rates of up to 98% are generally achievable.

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

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