| Mast |
z |
| Construction |
Electrically
Welded tubular steel construction. |
| Height |
14.5
Mts. clearance from table top to bottom of crown. |
| Gross Load Capacity |
27200
Kgs. |
| Hook Load Capacity |
18150
Kgs. with four lines.
20500 Kgs. with six lines. |
| Raising and Lowering |
2
Nos. Double acting hydraulic cylinders. |
| Crown Block |
6
Nos. roller bearing mounted wire lines sheaves and 1 No. Cat line
sheave. |
| Rotary Table |
z |
| Opening |
457
mm |
| Gear
Ratio |
6
: 1 Bevel Gear and Pinion. |
| Type |
Hinges
in vertical position for changing large dia. bits OR lowering casing
pipes. |
| Drive |
Torque
tube. |
| Clutch |
279
mm Two plates mechanical disc clutch. |
| Draw Works |
Two
Identical drums |
| Barrel
Dia. & Length |
178
mm X 320 mm |
| Flange
Dia. |
500
mm |
| Pull
Capacity |
6850
Kgs. Single line bare drum. |
| Clutch |
406
mm 2 plate mechanical type |
| Brake |
470
mm X 115 mm Mechanical high leverage type double brake. |
| Drive |
Chain |
| Slush
Pump |
|
| Size |
127
mm Suction & 101.6 mm Delivery |
| Type |
High
Pressure Centrifugal. |
| Drive |
Through
Diesel Engine, PTO and Tyre Coupling. |
| Jet
Eductor |
152 mm full open centrifugal
pump operated. Instantly self-priming. No moving parts. This jet
eductor is a hydraulic jet mechanism
so designed that it develops and exceptionally high vacuum, This
facilitating operation to greater
depth. It is instantly self priming, eliminating the use of any
separate priming device. So designed
that all the cuttings, grit and boulders in the return line completely
by-pass all operating mechanism. The
centrifugal pump handles only the small quantity of cutting-free
water necessary to actuate the jet. |
| Jacks |
Total
6 Nos. mechanical screw jacks. |
| Swivel |
152
mm Dia. full open, oil bath. |
| Kelly |
178
mm X 152 mm ID X 4.26 Mts. long flange type fabricated kelly. |
| Drill
Pipe |
150
mm ID X 3.05 Mts. long flange type drill pipe. |
| Prime
Mover |
By
Two Nos. Diesel Engine each developing around 100 HP at 1800 RPM. |
| Mounting |
Low
frame, rear two axled, semi trailer equipped with horse coupling. |
| Optional |
Air
lift equipment. |