These are meant for
drilling borehole in hard compact formation (Rock
Drilling). They combine both percussion and rotary
action with air media. Sometimes Air Rotary DTH are
provided with mud pump for negotiating the overburden.
RATED CAPACITY:
115 mm diameter. Holes up to 120
meters, by DTH method in hard
rock and 165 mm diameter. Holes
up to 120 meters. By mud rotary
method in alluvial soil.
PULL DOWN:
Through hydraulic cylinder and
wire rope, pull down force
variable up to 5000 kgs. "
Micro-Feed" arrangement provided
PULL DOWN (HOSTING):
Variable up to 6690 Kgs.
ROTATION HEAD:
Top Drive hydraulic motor driven
through gear train immersed in
oil bath providing infinitely
variable speeds of O-100 RPM
AIR COMPRESSOR:
11.5 mt. 3/min at 7 Kg/cm2 (4000
CFM 100 PSIG) Rotary screw type,
driven by its own separate
diesel engine.
MUD PUMP:
PRECISION' Model 'S-125
Duplex Double acting
reciprocating Mud pump having 5"
stroke and fitted with 4" liner
cable of delivering 450 LPM and
a maximum working pressure of
17.5 kg/cm2
MOUNTING:
4 x 2 drive truck chassis.
POWER UNIT:
Rig
including mud pump driven by
truck engine through power take
off.
MAST:
Heavy duty structural steel
construction electrically welded
capable of handling 4.5 meters.
(15') Long drill rod. Mast
raised and lowered by hydraulic
cylinder.
HYDRAULIC SYSTEM:
Comprising of Hydraulic pumps,
Control valves, reservoir, etc.
Total oil displacement around
130 LPM at a pressure of 100
kg/cm2
LEVELLING JACKS:
4 Nos. Mechanical screw jacks
provided
AIR LINE LUBRICATOR:
8
Ltrs. Capacity provided.
DRILL ROD RECOMMENDED:
73/76mm x 4.5 meters. (2 7/8" x
15') long.
OPTIONAL:
4 x 4 drive truck chassis for
mounting
Choice of Compressors
Pull down system through
hydraulic cylinder and chain
Hydraulic leveling jacks.
Mast Suitable to carry 3 mtrs.
(10') long drill rod.
Disclaimer: This is an information based
website, meant for providing assistance to it's readers. The information
has been gathered from a number of secondary sources, we do not hold any
responsibility for mis-information or mis-communication. Logos, taglines
& trademarks (if any shown) are the property of their respective owners.
