Reverse Circulation Rigs ARE-300
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Description
TITLE | SPECIFICS |
DRILLING CAPACITY | Rig capable of drilling 5" to 5½" dia holes for exploration purposes by Reverse Circulation (RC) Drilling method to a depth of 300 meters. |
MAST ASSEMBLY | The Mast / Tower is of C cross section type and made of heavy duty rectangular section, reinforced with suitable cross members, capable of handling 6.1 meters drill rods. |
TOP DRIVE ROTARY HEAD | Hydraulically operated top drive rotary head powered by two hydraulic motors having variable speed of 0-150 rpm and approximate torque of 52,800 in-lbs. |
AIR SWIVEL /
SAMPLE SWIVEL |
A separate air swivel is provided on the rotary head along with a sample swivel with blow-down arrangement. |
FEED SYSTEM | Heavy duty hydraulic cylinder is provided to accommodate 6 Mtr (20 feet) long drill pipes and to handle 6 Mtr casing pipes. Pull back capacity is about 24,200 lbs & pull down 16,700 lbs. Feed system is actuated using hydraulic cylinder and wire rope system. The feed system incorporates arrangement to control & limit weight on the Drill Bit. Rapid & slow feed arrangement is provided to measure down feed and hold back pressure of the system. |
The pull back / high speed up about: 45 Meters per minute High speed down about: 65 Meters per minute Slow feed Rate up: 9 Meters per minute Slow feed Rate down: 14 Meters per minute |
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Reverse Circulation Rigs ARE-300
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