Water Well Rigs
 
  Rotaham Series
  Direct Rotary 500
  Direct Rotary 1000
  Direct Rotary 1500
  Direct Rotary 2000
  DTH 300 SH
  DTH 350
  DTH 500 SPL
  Cable Percussion
  Blast Hole Rigs
 
  DTH-6-100D/E
  RBH-4-100D
  RBH-6-100D/E
  RBH-8-100DE
  SK 60E
  Mud Pumps
 
  Right Angle Gear Head
  Turbine Pumps
  Dust Collecting Equipment

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

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.
   
PULL DOWN:
   
 

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

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

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

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

‘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

   
MOUNTING
   
 

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

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

MAST
   
 

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. 
   

HYDRAULIC SYSTEM
   
 

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

LEVELLING JACKS
   
 

4 Nos. Hydraulic leveling jacks with safety check valves provided.
   
AIR LINE LUBRICATOR
   
 

13.5 Ltrs. Capacity provided.
   
WATER/FOAM INJECTION SYSTEM
   
 

Provided on Rig.
   
 
AUXILIARY WINCH
   
 

5000 Kgs. Capacity hydraulic motor driven Auxiliary winch provided.
   
BREAK-OUT SYSTEM
   
 

Hydraulically operated. 
   
DRILL ROD RECOMMENDED
   
 

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

Mounting  on two truck concept

  Choice of Compressors
  Reciprocating pump operated water injection system
  Hydraulically operated jib Boom  on the top of the mast.
  ODEX system for simultaneous casing lowering