High Air Pressure 4'' Metzke Thread OD109.5mm RC Hammer SRC542 For Grade control
Product Introduce:
Grade control is used to define the ore grades and blocks in the pit. For an exploration program, the quality of the samples is imperative for mine planning and blasting—the samples must be reliably accurate.
The hammer is used to remove rock samples which are pushed through the machine with compressed air. When air is blown down the annulus (ring-shaped structure) of the rod, the pressure shift creates a reverse circulation, bringing the cuttings up the inner tube. When the cuttings reach a deflector box at the top of the rig, the matter is moved through a hose attached to the top of the cyclone.
The drill cuttings will travel around the cyclone until they fall through the bottom opening into a sample bag. These bags are marked with the location and depth of the place where the sample was collected and can be transported directly to the assay lab for analysis
Specification:
SOLLROC RC hammer model SRC542:
| Overall Length (less bit) | 1191mm |
| Weight (less bit) | 55kg |
| External Diameter | 109.5mm |
| Fit bit shank | SRC542 |
| Hole range | 121-146mm (4 3/4''-5 3/4'') |
| Top sub thread | 3.5" Remet / 4'' Remet / 4'' Metzke |
| Working presure | 15-35 bar |
| Impact rate at 2.4 Mpa | 35Hz |
Bit SRC542 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 |
| 121 | 4 3/4'' | 8*14mm | 6*14mm | 2*14mm | 119 | 10.7 |
| 124 | 4 7/8'' | 8*14mm | 6*14mm | 2*14mm | 122 | 10.9 |
| 127 | 5'' | 8*14mm | 6*14mm | 3*14mm | 125 | 11.2 |
| 130 | 5 1/8'' | 8*14mm | 6*14mm | 3*14mm | 128 | 11.5 |
| 133 | 5 1/4'' | 8*16mm | 6*14mm | 3*14mm | 131 | 11.7 |
| 135 | 5 3/8'' | 8*16mm | 6*16mm | 3*14mm | 133 | 12 |
| 137 | 5 3/4'' | 8*16mm | 6*16mm | 3*14mm | 135 | 12.3 |
| 140 | 5 1/2'' | 8*16mm | 6*16mm | 3*14mm | 138 | 12.5 |
| 143 | 5 5/8'' | 8*16mm | 6*16mm | 3*14mm | 141 | 12.8 |
| 146 | 5 3/4'' | 8*16mm | 6*16mm | 3*14mm | 144 | 13.5 |
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
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'' Metzke Thread SRC542 OD109.5mm RC Hammer For Grade Control Images
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