D-120 SPECIFICATIONS |
|
| GENERAL | Heavy duty drill rig for soil and rock
exploration using augers, rotary tools or core drilling tools. Rated to depths of 200 ft.(61 m) to 350 ft. (107 m) with hollow stem or continuous flight augers up to 19 inch (483 mm) hole size. Rated to 2000 linear feet (610m) of core drilling using NW series tools. |
| POWER UNIT | The drill is powered by a 4-cylinder turbo-charged diesel. Electric starting and engine instruments are standard |
| FRAME & BASE | The drill frame is a weldment, constructed of heavy wall rectangular steel tubing, with sufficient strength and rigidity for heavy duty use. |
| CLUTCH & TRANSMISSION | Clutch - 13 inch (330mm) automotive type. Transmission - Heavy duty helical gear transmission with 5 forward and 1 reverse speed. Optional Cathead is driven by a power-take-off providing 1 speed forward and 1 reverse. |
| RIGHT ANGLE DRIVE | The right angle drive is a heavy-duty spiral bevel gearbox, totally enclosed, and running in oil |
| ROTARY BOX | The drill head utilizes a 2 speed all gear drive with 8620 heat treated gears. Tapered roller bearings, running in SAE 90W gear oil, are used. A chuck is available(optional) for all standard size rods and casing. |
| SPECIFICATIONS | Spindle Bore.....3-3/4" (95mm) |
| Spindle travel....72" (1830mm) | |
| up 30,000# (90kN) | |
| down 20,200# (90kN) | |
| Max feed rate....up FPM 49 (15m/min) | |
| down FPM 65 (20m/min) | |
| up regenerative FPM 115 (35m/min) | |
| Max gross spindle torque*.........1st gear & reverse, low range | |
| 13,903 ft. lbs. to 20.000 ft. lbs. | |
| (18852 Nm) to (27119 Nm) | |
| Max Spindle speed....................1st gear & reverse, low range - 55RPM | |
| 5th gear, high range - 736 RPM | |
| * varies with engine choice | |
| HYDRAULIC SYSTEM | Oil is supplied by a heavy-duty 2-section
gear type pump rated at 23 GPM(87l.min) and 28 GPM(106l/min). Maximum operating pressure
is 2000 PSI(13800 k Pa). The pump is driven by a drive shaft connected to the front of the
engine or from the engine auxiliary drive. Hydraulic valves are stock sectional body directional control vavles with an integral non-adjustable relief valve. A regenerative spool is provided for the main feed valve providing a high speed spindle lift as well as normal operation. |
| AUGER ADAPTER | A heavy universal joint, which mounts to the spindle with a single nut, is provided for ease in hook-up and adjusting for misalignment. All components are sized to withstand severe combinations of torque and axial load. 6-1.4"(159mm) I.D. hex box is standard, other sizes available. |