PDTHR-600 Skid(Trailer)

Model: PDTHR-600 Skid (Trailer)


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Technical Specifications:

MakePrime Rigs Ltd(PRL)
Model & TypePDTHR 600, DTH cum Rotary, Combination Drilling Rig
Capacity : DTH Drilling
Drill hole diameter12 inch (304.8 mm)
Rotary Drilling
Hole diameter17 inch (431.8) Upto 600 Meters depth
Drill rod diameter4 ½ inch (114.3 mm)
Drill rod length 20 feet (6 meter)
CarrierSkid supported with 5 jack cylinders on Trailer bed with 12 tyres
MakePrime Rigs Ltd
Prime MoverThe System shall be powered by a separate on board diesel driven deck
engine with suitable PTO arrangement.
Engine Make Cummins
Capacity390 HP
Mounting Platform Structure Electrically welded steel structure covered with Chequered Sheet.
Mast Assembly Sturdy structural Tubular mast structure electrically welded
Mast overall length10,500 mm
Rotary Head travel7,050 mm
Centralize opening14 inch (356 mm)
Raising and Lowering by Hydraulic Cylinder
Feed SystemFeed & Hoist actuation: Pulley, Wire rope & Hydraulic cylinder
Feed cylinder Size & strokeDia 140mm x Dia 100mm x 3500mm long – 02 No’s
Pull Back32,500 Kg-f
Pull Down 16,000 Kg-f
Hoisting speed(up) 30 meter/ minute
Reeving Ratio 1:2
Having adequate travel to handle drill pipes and casing pipes up to 6.0
meter long. Feed system consists of hold back arrangement to control
limit weight on bit, rapid and slow feed arrangement to suit variable
ground condition.
Double Motor Rotary Head
Assembly (Top Head Drive)
Fabricated steel body with spur gear reduction and oil bath type gear box
Torque750 kg-m
Rotation SpeedSpindle RPM : 0-100
The RH unit travels on Mast assembly to absorb sudden shock loads
encountered during drilling operation.
HydraulicsThe entire Equipment is designed to operate at high temperature encountered in the
normal weather conditions.
Open loop circuit with fixed displacement/variable displacement piston pumps and
proportional valves for feed and rotation. Diverted valves for auxiliary drives.
Max operating pressure 220 Kg/Cm²
Hydraulic Tank capacity600 Liters.
Filtration (Nom) – Return line 10/25 Microns
Cooling: Fin type oil to Air.
Control PaneAll necessary control and monitoring valves and gauges are installed at control panel
located nearer to drilling point for driller convenience.
StabilizerModel: Hydraulically operated Box type
Cylinder bore diameter140 mm
Stroke700 mm
No. of Jacks
5 Nos.
The above jacks are provided with ‘reverse flow restricted’ valves to ensure safe
Two rear jacks are operated with two separate valves and Three front jacks are
operated with a single valve.
Mast raising Cylinder (02Nos)For raising and lowering the Mast Assembly
Cylinder bore diameter140 mm
Break out Wrench CylinderThe drill rig is equipped with hydraulic operated break out wrench for making and
breaking the drill pipes and Hammer.
Cylinder bore diameter100 mm
Stroke 300 mm
Rotary head slide out Arrangement For Sliding of rotary head gear box during loading of casing pipes
Cylinder bore diameter80 mm
Stroke 450 mm
Water Injection PumpHydraulically operated triplex water injection pump for injecting water/foam with
Necessary piping and flow control valves
Max. Flow 50 liter / minute
Max. Pressure 40 kg/cm²
Single Rod Changer With 1Ton Winch Hydraulically operated winch to handle the Drill pipes, tools and other accessories.
Bare drum-Pull1000 kg-f
Max. Speed 20 meter/minute
Main Hoisting Winch
Hydraulically operated winch to handle the Casing pipes
Bare drum pull 5000 kg-f
Max. Speed 40 meter/minute
Size of wire rope16mm Diameter
Length of wire rope 40 meters
Air compressorMounted ON Skid
Capacity1350 cfm @ 425 psi
Airline LubricatorAir-line lubricator will be used for DTH Hammer lubrication
MakeReputed Make
Capacity1350 cfm @ 425 psi
Mud PumpCentrifugal type hydraulically driven mud Pump required for mud rotary drilling.
The pump is suitable for handling clear water, mud and bentonite solutions
Max Flow1000 liter / minute
Max. Pressure10 kg/cm²
Welding generatorHydraulically driven welding generator for welding and cutting of steel casing pipes.
Makereputed Make
Capacity400 Amps @ 60% duty cycle
PaintEpoxy & Polyurethane Paint
High quality Polyurethane paints are used for the rigs to achieve more life for the
equipment following the global standard procedures for the surface preparations like Shot
Blasting and Primer coating.