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[China]
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Address: No55. Jiucaiyuan road, Furong District, Changsha, Hunan,China
Contact name:Ling Bo
Changsha Sollroc Engineering Equipments Co., Ltd |
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SRC40 High Quality Steel Black RC Hammer For RC Mining Exploration Drilling
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.
RC drilling is slower and costlier but achieves better penetration
than RAB or air core drilling; it is cheaper than diamond coring
and is thus preferred for most mineral exploration work.
Basics of Reverse Circulation Drilling:
1) 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.
2) RC drilling utilizes much larger rigs and machinery and depths of
up to 500 meters are routinely achieved. RC drilling ideally
produces dry rock chips, as large air compressors dry the rock out
ahead of the advancing drill bit.
3) RC drilling is slower and costlier but achieves better penetration
than RAB or air core drilling; it is cheaper than diamond coring
and is thus preferred for most mineral exploration work.
4) Reverse circulation is achieved by blowing air down the annulus of
the rod, the differential pressure creating air lift of the water
and cuttings up the inner tube which is inside each rod. It reaches
the deflector box at the top of the drill string then moves through
a sample hose which is attached to the top of the cyclone.
Adavantages:
1.The reverse circulation RC hammer provides large impact of torque
and high efficiency of energy transfer while ensuring saving energy
consumption.
2.It delivers high drilling efficiency due to strong capability of
removing rock dust and flakes.
3.Compressed air and reverse-flow fluid medium are all transported
in the sealed double-wall drilling tool, thus avoiding direct
ccontact with the borehole wall and maintaining stability of the
wall. The reverse circulation hammer shows unique effect to complex
and leakage formations.
| Hammer | Bit Shank | Hole Range (mm) | External Diameter (mm) | Length (less bit) mm | Weight (kg) | Connection Thread | Working Pressure |
| RC3-E531 | RE531 | 84-100 | 81 | 1069 | 29 | 3" Remet | 1.5-3.5Mpa |
| RC3.5-Y | RC3.5Y | 98-115 | 94 | 1184 | 44 | 3" Remet | 1.5-3.5Mpa |
| RC4-E004 | RE004 | 111-127 | 107 | 1252 | 52 | 3.5" / 4" Remet 4" Metzke | 1.5-3.5Mpa |
| RC4.5-E542 | RE542 | 113-130 | 109.5 | 1191 | 57 | 3.5" / 4" Remet 4" Metzke | 1.5-3.5Mpa |
| RC4.5-E543 | RE543 | 120-135 | 116 | 1191 | 63 | 3.5" / 4" Remet 4" Metzke | 1.5-3.5Mpa |
| RC4.5-E545 | RE545 | 122-135 | 117.5 | 1261 | 65 | 4" / 4.5" Remet 4" / 4.5" Metzke | 1.5-3.5Mpa |
| RC5-P40 | PR40(RE040) | 124-142 | 120.5 | 1362 | 80.5 | 3.5" / 4.5"Remet 3.5" / 4.5"Metzke | 1.5-3.5Mpa |
| RC5.5-P52/P52R | PR52/PR52R | 126-142 | 121 | 1227 | 68.5 | 4" / 4.5"Remet 4" / 4.5"Metzke | 1.5-3.5Mpa |
| RC5.5-E547 | RE547 | 130-146 | 124.5 | 1270 | 74 | 4.5" Remet 4.5" Metzke | 1.5-3.5Mpa |
| RC5.5-P54/P54R | PR54(RE054) | 135-150 | 130 | 1294 | 84.5 | 4.5"Remet 4.5"Metzke | 1.5-3.5Mpa |
| RC5.5-M5456 | MX5456 | 136-150 | 132 | 1362 | 90 | 4.5"Remet 4.5"Metzke | 1.5-3.5Mpa |
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
