Rig model

DTHR-300 Heavy Duty Drilling Rig

Top head drive DTH Cum Rotary Rig is capable of drilling in different formations such as Hard Rock by DTH, Un consolidated / Alluvial formations using Air/Water/Foam flush by Rotary Method up to a depth of 300 Meters, Under favorable drilling conditions. The following are the detailed specifications.

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TECHNICAL SPECIFICATION

Spec
Details

Model & Type DTH Drilling

DTHR 300, Top Head drive DTH cum ROTARY drilling Rig

Hole Dia 6”, 12” Up to 300 Meters depth and 14” (Over burden)

Carrier Truck Make

For the mounting of Rig, Air compressor and Mud pump

30 Ton 6x4 Ashok Leyland / SINO OR any reputed make.

Prime Mover

The system shall be powered from the same truck Engine with PTO arrangement thru a Transfer Gear Box.

Mast overall Length Rotary Head travel

9000mm, 7000mm

Feed cylinder Size & stroke

Dia 160 mm x Dia 100mm x 2350mm lg.

20 Ton 10 Ton

Pull Back, Pull Down

20 Ton, 10 Ton

Rotary Head Assembly

Top Head Drive

Torque, Rotation Speed

800 Kg-m ( with double motors) Spindle, RPM: 80 Rpm

Max operating pressure

220 Kg/Cm2

Hydraulic Tank capacity

1000 Liters.

Filtration (Nom) – Return line Oil Cooler

10/25 Microns LHC-044 (Oleaer Make)

Stabilizer

Model: Hydraulically operated Box type jacks

Cylinder bore diameter

125mm

Stroke

1000mm

No. Of Jacks

4 Nos( Box type).

Break out Wrench

Cylinder bore diameter

100mm

Stroke

300mm

Mast raising Cylinder

Cylinder bore diameter

100mm

Stroke

800mm

Qty

2 No’s

Water Injection Pump

Max. Flow

80 Liter/minute

Max. Pressure

50kg/cm2

Auxiliary Winch

Bare drum-Pull

1000 kgf

Max. Speed

20 Meter/minute

Air compressor

Make

ATLAS COP CO /ELGI

Capacity

1200 Cfm/330 PSI

Mud pump 6”x8”

Hydraulically driven Duplex Mud Pump required for Mud Rotary drilling

Max Flow

1321 Liter/minute

Max. Pressure

20 Kg/cm2

Liner size

6”

Stroke

8”

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