Reverse Circulation Drilling

Capitalizing on our in-depth industry knowledge, we are engaged in manufacturing and exporting Reverse Circulation Drilling. These are used to drill of 5? holes by reverse circulation (DTH) method up to 400 mts (1320 ft). The box type structure is provided with feed cylinder (140 x 80 x 2350) to ensure excellent drilling.


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Reverse Circulation Drilling - TECHNICAL SPECIFICATIONS
CAPACITY To drill of 5" holes by reverse circulation (DTH) method up to 200 mts
PRIME MOVER Truck mounted with power from deck engine or skid mounted with power from deck engine
WORK METHOD Rotation with direct circulation, nucleus destruction with bleeding by water, by
Reverse circulation method with DTH hammer
MAST Box type structure will be provided with feed cylinder 2 Nos (140 x 80 x 2350) and wire rope reeving of 1:3 ratio with angle drilling up to 450
Max Capacity - 18 tons (39600 lbs)
Height - 8 mtr (27 ft)
Rod handling capacity - 6 mtr (20 ft)
PULL UP AND PULL DOWN By means of Hydraulic cylinder and wire rope Reeving Ratio 1:3
Max Pull up force - 10750 kg (23650 lbs)
Max Pull up speed - 40 mtr / min (132 ft / min)
Max Pull down force - 7250 kgs (10550 lbs)
Max Pull down speed - 60mtr / min (198 ft/min)
HYDRAULIC SYSTEM 210 kg / cm2 / (3000 psi)
ROTARY HEAD Two speed rotary head is powered by single speed hydraulic motor with Swivel attachment for mud/water suitable for reverse circulatory and DTH drilling
Max Torque - 650 kg mtr (29361 inch - lbs)
Max Speed - 0 to 100 RPM
JACKS Four box type hydraulic jaws
WATER INJECTION PUMP Triplex reciprocating pump powered by hydraulic motor
BREAK OUT WRENCH To open the drill joints rigid type break out wrench of 350 mm stroke will be provided with rope attached
SUITABLE COMPRESSOR 1100 cfm - 350 psi, additional booster, compressor mounting is separate
OPTIONAL ATTACHMENTS Manually operated corousal four rod changer to handle four nos drill pipe rods to couple drill head
A two ton winch is provided to handle drill rods and other tools
CYCLONE Will be supplied for reverse circulatory drilling and will be mounted on the rig


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