Drilling Depth Capacity:
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Method of drilling |
RC (Reverse Circulation) |
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Hole size Depth capacity |
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Metric |
U.S |
|
Hole Size |
101.5mm – 304.5mm |
4” – 12” |
|
|
Recommended hole diameter |
203.3mm |
8” |
|
|
5.0” Drill rod |
300 meters |
984 – feet |
|
|
4.5” Drill rod |
360 meters |
1181 – feet |
|
|
3.5” Drill rod |
490 meters |
1607.5 – feet |
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|
|
|
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Note |
Drilling Depth is based on Straight, Vertical, and Clean fluids fill holes. |
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Power Unit:
|
Engine |
Cummins or Ashok Leyland |
|
Model |
A4 |
|
Power |
230 HP |
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Speed |
2300 Rpm |
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Engine type |
Diesel Turbocharged |
|
Cooling |
Water cooled |
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Safety |
Auto Fire System (Inside the Canopy) |
|
Canopy |
Fully covered steel enclosure with Lockable Door |
Rig Base:
Heavy duty BOX Frame type construction for lightweight fully welded Crawler Base.
- Centralized Service and prestart area
- Auxiliary Connections with require gauges and vents
- Air and water Hoses fitted with whip checks
|
|
Metric |
U.S. |
|
Length Approx. |
9.5Mtr’s |
31 feet |
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Width |
2.3Mtr’s |
7.5 feet |
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Top Covering |
Covered with 4mm Chequered sheet |
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Mast (Dumping Type 45 – 90 degrees angle):
|
|
Metric |
U.S. |
|
Type |
Dumping Mast |
|
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Total Length |
9.6 meters |
31.4 ft |
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Top of table to Spindle |
8.2 meter |
26.9 ft |
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Top of table to spindle sub |
7.5 meter |
24.5 ft |
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Mast raising & lowering |
Dual hydraulic cylinders with load safety valves |
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|
Mast Dump |
Single hydraulic Cylinders with load Safety valves |
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Rotation Head:
|
Model |
Top Drive PRL 250RC |
|
|
Type |
Heavy Duty single reduction Gearbox. |
|
|
Drive Motor |
Hydraulic – Fixed displacement |
|
|
Max fluid operating pressure |
27.7bar |
400 PSI |
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Lubrication |
Self-lubrication |
|
|
Speed |
115 rpm |
|
|
Torque |
4696 NM |
|
|
Note |
Rotary Head torques and speeds are indicated Output Speeds & torques are on 100% efficiency, Actual rotation speed is affected by Engine Rpm and motor displacement settings |
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FEED SYSTEM:
|
|
Metric |
U.S. |
|
Type |
Wire rope over cylinder |
|
|
Head travel |
7.5 m |
24.5 ft |
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Rod hosting length |
6 m |
19.5 ft |
|
Pull Back Force |
13 tons |
28660.9 lbs. |
|
Pull down force |
6 tons |
13227.7 lbs. |
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Fast Feed Up |
30 meters/min |
98.4 ft/min |
|
Fast feed down |
42 meters/min |
137.7 ft/min |
|
Fine feed speed |
4.5 meters/min |
14.76 ft/min |
Guide Table:
|
Table Opening |
14” |
|
Max casing Diameter |
12” |
Auxiliary Winch:
|
|
Metric |
U.S. |
|
Hoisting Capacity |
29.9 KN (3 tons) |
6721 lb |
|
Hoisting speed |
40 meters/min |
131 ft/min |
|
Cable diameter |
12 mm |
|
|
Cable length |
35 meters |
114 ft |
|
Drive motor |
Fixed Displacement |
|
|
Static / Dynamic Braking |
Spring applied hydraulic release / Over center valve |
|
|
Mounting |
Mast |
|
|
Note |
Do not use multiple part lines with the winch. Use only single line. |
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Mist Pump:
|
Type |
Triplex Piston Pump |
|
Power |
Hydraulic operated |
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Max flow |
30 LPM |
|
Max pressure |
6.895 MPa (1000 PSI) |
Hamer Lubricator:
|
Type |
Venture |
|
Tank |
Pressurized by air |
|
Capacity |
1500CFM@400PSI |
Air / Blow Down Valves:
|
Type |
Air |
|
Rating |
3000 PSI |
|
Valves |
Air Valve, Air Vent |
|
Type of Operation |
Hydraulic |
Safety:
|
Safety features |
2 Nos. Dry type Fire Extinguisher fitted on the machine. |
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Safety Guarding on all rotating and moving components. |
|
|
4 Emergency stop buttons fitted at different locations for easy access. |
|
|
Horn to alert drill crew. |
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|
All moving hoses are covered. |
|
|
Crown block rope jumping safety stopper is provided |
|
|
Auto fire safety system for engine |
|
|
Safety stoppers provided for top drive (mechanical) |
Rig Lighting / Horn:
|
Lightening |
Mast mounted LED lights 2nos, Drive LED Lights, Beacon Flash |
|
Horn |
For Tramming & Reverse |
Jack Legs:
|
Qty |
4 Nos |
|
Fixing |
Bolted to Main Base Frame |
|
Locking Valves |
Pilot-operated check valves |
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Stroke |
800mm |
|
Lifting Capacity |
60 Tons / 4 jacks |
Hydraulics:
|
Main Pump |
Type |
Variable Displacement |
|
|
Controller |
Load Sensing |
|
|
Working Pressure |
280 Bar |
|
Auxiliary pump (water) |
Type |
Fixed Displacement |
|
|
|
|
|
|
Working Pressure |
260 Bar |
|
Auxiliary pump (auto feed & Cooler) |
Type |
Fixed Displacement 200 Bar |
NOTE: All hydraulic components like PUMPS, MOTORS, VALVES, CARTRIDGES & HOSES are from PARKER, DANFOSS, REXROTH, SUN, COMOTROL etc.
Hydraulic Valve Group:
|
Main control valve |
Proportional Load sensing Rotation, Feed. |
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Auxiliary valves |
Mobile Direction Control valve Auxiliaries, Auto feed, Water Pump |
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Water Pump |
Mobile Direction Control valve Corse control/Fine control |
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Hydraulic Filters |
Return Line filter, lubrication oil filter for Rotation head. 10 Hydraulic oil fills up filter & hand pump. Air breather assembly fitted on tank. |
|
MICRO FEED |
Separate control valves for Hold Back and Thrust. Separate valve for regulating Travel Speed of rotary head while drilling. |
Control Panel:
|
Gauges |
Hold back, pull down, main pressure, water pressure |
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Engine speed |
lockable control handle for controlling engine RPM. |
|
Stop |
Emergency Engine Stop |
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Rotation control |
Manually adjustable control for rotation Speed. Control knob for torque control of Rotation Head |
|
Load Indication |
Load gauges are mounted for hold back, pull down. |
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Water pump |
Fine control valve has been provided on the panel |
|
Pilot controls |
Hydraulic operated Joysticks for Rotation/Feed |
|
Pull Up gauge |
Load indicator in Bar & psi |
Air Compressor:
|
Make |
ELGI |
|
Model |
1500/400 |
|
(Max. Free Air Delivery (Flushing)) CFM |
500 |
|
(Pressure) PSI |
400(21 Bar) |
|
Engine |
KTTA 19C, Cummins |
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