DOWN-THE-HOLE HAMMER DRILL [DTH 500 spl]

165 mm dia. Holes upto 180 mtrs. by DTH method in hard rock and 203/215 mm dia. Holes upto 180 mtrs by mud rotary method in alluvial soil. Larger Hole by mud Rotary method through reaming operation.

Through hydraulic cylinder and wire rope. Pull down force variable upto 12,500 Kgs. Micro-Feed’ and Hold-back arrangement.

Variable upto 8500 Kgs.(High speed hoisting provided.)

Top drive hydraulic motor driven through gear train immersed in oil bath providing infinitely variable speeds of 0-100 / 0-150 RPM.

17 mt.3/min at 10 kg./cm2 (600 CFM ,150 PSIG), Rotary screw type, driven by its own separate diesel engine.

‘PRECISION’ make model S-125 duplex double acting reciprocating mud pump having 5” stroke and fitted with 4.1/2”  liner capable of delivering 550 LPM and a maximum pressure of 13.85 Kg/cm2

‘4 x 4 / 6 x 4 drive Ashok Leyland / TATA Truck Chassis.

Rig including mud pump driven by truck engine through power take off. Compressor driven by independent diesel engine.

Heavy duty structural steel / tubular tube construction electrically welded capable of handling 6.1 mtrs. (20’) long drill rods. Mast raised and lowered by hydraulic cylinder. 

Comprising of hydraulic pumps, control valves, reservoir, etc.

4 Nos. Hydraulic leveling jacks with safety check valves provided.

13.5 Ltrs. Capacity provided.

Provided on Rig.

5000 Kgs. Capacity hydraulic motor driven Auxiliary winch provided.

Hydraulically operated. 

89mm OD / 73mm OD - 6 Mtrs. / 3 Mtrs. external flush type drill rods with joints as per API standard.

Mounting  on two truck concept