4.5'' Reverse Circulation RC Drill Bit With Shank SRC542/543 For Mining
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 (RC) drilling uses a bit attached to a down-hole hammer to produce a hole. Unlike diamond drilling, RC drilling produces samples of rock cuttings rather than a sample of rock core. The down-hole hammer is powered by compressed air, which also acts as the medium bringing the drill cuttings up to surface.
Technical Parameters
RC bits Model SRC542
| Diameter | No x Button diameter
mm | Button angle | Flushing holes | Shroud Dia
mm | Weight
(kg) | Part No. |
| mm | inch | Gauge Button | Front Button |
| 121 | 4 3/4 | 8 x 14mm | 8 x 13mm | 35 | 2 | 119 | 10.7 | SRC542-121 |
| 124 | 4 7/8 | 8 x 14mm | 8 x 13mm | 35 | 2 | 122 | 10.9 | SRC542-124 |
| 127 | 5 | 8 x 14mm | 8 x 14mm | 35 | 2 | 125 | 11.2 | SRC542-127 |
| 130 | 5 1/8 | 8 x 16mm | 8 x 14mm | 35 | 2 | 128 | 11.5 | SRC542-130 |
RC bits Model SRC543
| Diameter | No x Button diameter
mm | Button angle | Flushing holes | Shroud Dia mm | Weight
(kg) | Part No. |
| mm | inch | Gauge Button | Front Button |
| 124 | 4 7/8 | 8 x 14mm | 8 x 13mm | 35 | 2 | 122 | 11.0 | SRC543-124 |
| 127 | 5 | 8 x 14mm | 8 x 14mm | 35 | 2 | 125 | 11.2 | SRC543-127 |
| 130 | 5 1/8 | 8 x 16mm | 8 x 14mm | 35 | 2 | 128 | 11.4 | SRC543-130 |
| 133 | 5 1/4 | 8 x 16mm | 9 x 14mm | 35 | 2 | 131 | 11.7 | SRC543-133 |
Adavantages:
1. the samples extracted by RC drilling are reliable and free of contaminants
2. the method is timely and cost-efficient
3. it is well-suited for difficult terrains
4. it has high penetration rates
5. it has minimal environmental impact
Working principle
The on-board compressor delivers power to a pneumatic reciprocating piston. The piston, in turn, drives a tungsten-steel drill bit which is purpose designed to be able to crush hard rock.
Similar to air core drilling, drill cuttings are returned to surface inside rods. We achieve this through the use of dual wall drill rods: an outer drill rod with an inner tube. When compressed air is blown through the rod, the volume displaces the air, lifting the samples to the surface.
Once cuttings reach a diverter at the top of the hole, they’re moved through a hose and around the cyclone, which slows the sample down. From the cyclone the sample goes over a splitter that delivers a percentage of the entire sample into a sample bag. The exploration drilling team then collect the samples aligned to the hole depth and lay them out for the client to log, and then transport to the lab for assay.
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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4.5'' Reverse Circulation Drill Bits With Shank SRC542 SRC543 Images
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