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Shank PR40 138mm DTH RC Hammer Rock Bits For Geological Exploration

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Shank PR40 138mm DTH RC Hammer Rock Bits For Geological Exploration

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Brand Name :	SOLLROC
Model Number :	rc Bit
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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Shank PR40 138mm DTH RC Hammer Rock Bits For Geological Exploration

Shank PR40 138mm DTH RC Hammer Rock Bits for Geological Exploration

Product Introduce:

RC drilling uses rods with inner and outer tubes, the drill cuttings are returned to surface inside the rods. The drilling mechanism is a pneumatic reciprocating piston known as a hammer driving a tungsten-steel drill bit.
RC drilling utilises much larger rigs and machinery and depths of up to 500 metres are routinely achieved. RC drilling ideally produces dry rock chips, as large air compressors dry the rock out ahead of the advancing drill bit.

Adavantages:

1. Manufactured using premium hardened metals for long life;

2. Maximum material recovery, up to 98%;
3. No cross contamination of samples;

4. Handles injection of water, foam, oil, and polymers without performance loss;

5. Delivers maximum drilling under water.

Specification:

Product specifications: PR40-138mm RC Bits

Diameter		No x Button diameter mm		Button angle	Flusing holes	Shroud Dia mm	Weight(kgs)	Part No
mm	inch	Gauge Buttons	Front Buttons	Button angle	Flusing holes	Shroud Dia mm	Weight(kgs)	Part No
124	4 7/8	8x14	8X13	35	2	122	14.3	PR40-124
127	5	8x14	8X14	35	2	125	14.7	PR40-127
133	5 1/4	8x16	10X14	35	2	131	15.2	PR40-133
138	5 4/9	8x16	6x16+3x14	35	2	136	15.8	PR40-138

PR40 Hammer specification

Length (less bit)	1362mm
Weight (less bit)	80.5kg
External diamater	φ120.5mm
Bit shank	PR40
Hole range	φ124-φ142
Connection thread	3.5"-4.5" Remet 3.5"-4.5" Metzke
Working pressure	1.5Mpa-3.5Mpa
Air consumption	1.7 Mpa	16 m³/min
	2.4 Mpa	22 m³/min
	3.0 Mpa	28 m³/min

Detailed Photo:

Shank PR40 138mm DTH RC Hammer Rock Bits For Geological Exploration

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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