Technical Specifications
General
KLR DTHR300 Model. Top
drive DTH cum Rotary Combination Hydraulically Operated
Truck Mounted Drilling Rig, Designed to handle DTH
Drilling and Rotary drilling upto a maximum depth of 300
meters.
Capacity
|
DTH Drilling |
|
Drilling
hole Diameter |
203 mm
|
8 Inches |
|
Max.
Overburden Drilling Diameter
|
254 mm
|
10 Inches
|
|
Max.
Drilling Depth |
300 Mtr
|
1000 feet
|
|
Drill Pipe
size |
114 mm
|
4.5 Inches
|
|
Drill Pipe
wall thickness |
8.9 mm
|
0.35 Inches
|
|
Length of
the Drill Pipe |
6.1 Mtr
|
20 feet
|
|
Note: Under favorable
Drilling conditions.
Rotary Head
Heavy duty Hydraulically
Driven Top Head Rotation Unit having infinitely variable
speed (0 to 100 rpm) will be provided. This Unit travels
on the Mast and is sturdy construction to absorb sudden
shock loads generally encountered during Drilling
Operations.
|
Max. Speed
|
100 rpm
|
|
Max. Torque
|
550 kgfm
|
|
Drive Motor
model |
Orbital
Motor (0MV 400 or equivalent)
|
|
No. of
Motors |
2 Nos.
|
|
Feed System
Feed system is provided
with adequate travel for handling drill pipes & Casing
pipes upto 6 Mt. Long. The feed and hoist are actuated
by a suitable hydraulic cylinder with wire rope and
pulley arrangement. The feed system has the following
capabilities.
|
Pull back/Up
Capacity |
14500 Kgf
|
|
Pull down
Capacity |
7500 Kgf
|
|
Pull Back/Up
Speed |
20 Mtr/mm
|
|
No. of
Cylinders |
1 No.
|
|
Reeving
Ratio |
1:3
|
|
Rotary Drilling
|
Drilling
Diameter |
311 mm
|
12 ¼ Inches |
|
Max. Casing
Pipes Capacity |
203 mm
|
8.0 Inches
|
|
Max.
Drilling Depth |
300 m
|
1000 feet
|
|
Note: Under favorable
Drilling conditions.
Mast
Box type Mast of
Electrically welded construction, main members made out
of heavy duty structural steel tubes, reinforced with
suitable cross members.
|
Mast Length
|
8800 mm
|
29 Feet |
|
Rotary Head
Travel |
7000 mm
|
23 Feet |
|
Centraliser
Opening |
355 mm
|
14 Inches
|
|
Rod handling
Capacity |
6.1 m
|
20 Feet |
|
Raising &
Lowering |
With
Hydraulic Cylinder |
|
|
The feed system will be
incorporated with Hold back arrangement to control and
limit weight on bit, rapid and slow feed arrangement to
suit the variable ground conditions.
|
Max. Flow
|
36 lpm
|
|
Max.
Pressure |
40 kg/cm2
|
|
Breakout Wrench
The Drill Rig is equipped
with Hydraulically operated breakout wrench for breaking
drill pipes.
|
Cylinder
bore diameter |
80 mm
|
3.1 Inch
|
|
Stroke
|
300 mm
|
12 Inch
|
|
Mud Pump
Hydraulically driven
Duplex, double acting reciprocating 6 x 6 model Mud pump
is required for rotary drilling. This mud pump is
suitable for handling clear water, drilling mud and
bentonite solutions.
|
Bore
|
150 mm
|
6 Inches
|
|
Stroke
|
150 mm
|
6 Inches
|
|
Max. Flow
|
1021 lpm
|
|
|
Max.
Pressure |
20.74 kg/cm2
|
|
|
Hydraulic System
|
Max.
Operating Pressure |
220 kg/cm2
|
|
Hydraulic
Tank Capacity |
800 Lt
|
|
Filtration
(Nom) Return Line |
10 microns
|
|
Hydraulic
Oil Cooler |
120 GPM (Fin
type Oil to Air) |
|
Prime Mover
The entire rig unit
including mud pump shall be mounted on the truck, power
drawn from the deck engine with suitable PTO arrangement
for the Hydraulic system.
Stabilizers (Jacks)
System consists of four
hydraulic leveling jacks with Reverse flow restricted
valves to ensure safe operation. Two numbers are at rear
of the rig controlled by a single valve. and two
separate valves for the Two jacks at the front of the
rig. (Operator side)
Water
Injection Pump
The drill rig will be
provided with Hydraulically operated triplex plunger
pump, for injecting water/foam with necessary piping and
flow control valve.
Single Rod Changer with One Ton Winch Assly (Optional)
Manually operated single
rod changer will be provided for changing the drill
pipes. Hydraulically operated auxiliary winch of
capacity 1.0 ton is mounted on mast to handle the casing
pipes, drill pipes and other handling tools.
|
Bare Drum
Pull |
1000 kgf |
|
Max Speed
|
20 m/min
|
|
Air Compressor and Mounting
Air compressor of
following capacity is required for DTH Drilling.
|
Capacity
|
1100 cfm /
300 psi |
|
Make
|
ELGI / IR |
|
Air compressor shall be
mounted on a separate suitable truck with separate
hydraulic package/side P.T.O arrangement as required and
four dia 100 stabilizers(jacks)
Welding Generator (Optional)
Hydraulically driven
Welding generator set of capacity 320 Amps at 60% duty
cycle is required.
|
Make
|
Swaraj /
equivalent |
|
Drive
|
Hydraulic
|
|
 |
KLR Drilling
Rigs can be supplied in custom-built
models in various Configurations as
indicated below, Mounting features to
suit all special requirements and
Technical specifications can be offered
accordingly. |
|
 |
KLR DTHR
600, capable of drilling up to 600
Meters (~2000 Feet) |
|
|
KLR DTHR
750, capable of drilling up to 750
Meters (~2500 Feet) |
|
|
KLR DTHR
1000, capable of drilling up to 1000
Meters (~3300 Feet) |
|
|
