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Product Details:
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| Color: | Black Or You Wanted | Material: | Alloy Steel |
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| Application: | Hole Drilling In Mines, Hydrology And Water Well ,Geothermal Well | Usage: | Geologic Exploration,gravel Stratu |
| Formation: | Complicated Gravel Formation | Quality: | Best |
| Name: | RC Bit | Manufacturing Process: | Forging |
| Port: | Shanghai/Guangzhou/ Beijing | ||
| High Light: | DTH RC Hammer Rock Bits,138mm DTH RC Hammer,PR40 Rock Bits |
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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.
| Diameter | No x Button diameter mm | Button angle | Flusing holes | Shroud Dia mm | Weight(kgs) | Part No | ||
| mm | inch | Gauge Buttons | Front Buttons | |||||
| 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 |
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Length (less bit)
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1362mm |
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Weight (less bit)
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80.5kg | |
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External diamater
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φ120.5mm | |
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Bit shank
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PR40 | |
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Hole range
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φ124-φ142 | |
| Connection thread | 3.5"-4.5" Remet 3.5"-4.5" Metzke |
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Working pressure
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1.5Mpa-3.5Mpa | |
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Air consumption
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1.7 Mpa | 16 m³/min |
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2.4 Mpa | 22 m³/min |
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3.0 Mpa | 28 m³/min |
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
Contact Person: Ms. Ling Bo
Tel: 86-13077353340
Fax: 86-731-85551635
