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 350]
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.
Auxiliary winch having 3000 kgs, capacity.
Water/Foam injection system.
ODEX system for simultaneous casing lowering
Hydraulic break out system