DRILLING DEPTH GUIDELINES
The figures in these tables have been calculated, based on field experiences, and may be reasonably expected.
Actual drilling capacity will depend on in-hold tools and conditions, drilling techniques and equipment used.
Diesel Engine | Model | Cummins 6CTA8.3-C195 (turbocharged and charge water cooled) |
Displacement | 8.3L (2.19 US Gallons) | |
Power | 145kW (195HP) | |
Rated RPM(Factory setting) | 1900rpm | |
Drilling Capacity | BQ | 1500 m(4920 feet) |
NQ | 1300 m(4264 feet) | |
HQ | 1000 m(3280 feet) | |
PQ | 680 m(2230 feet) | |
Drill Head | Rotation Motor | Double Hydraulic Motors –variable and Reversible Maker: SAUER-DANFOSS |
RPM | Two Shifts/ Stepless Change 0-1145 RPM | |
Ratios | 1st 8.776:1 2nd 2.716:1 | |
Head Opener | sidewise sliding way with hydraulic drive | |
Hydraulic Chuck(PQ) | Hydraulically opened, Disc Spring Clamping, Normally Closed Type Axial Holding Capacity of 222 400 N | |
Max. Torque | 4650 N·m(3427 lbf·ft) | |
Hold Diameter | 121 mm(4.76 inch) | |
Max. Lifting capacity of Spindle | 150 kN(33720 lbf) | |
Max. Feeding Power | 75 kN(16860 lbf) | |
Primary Pump Package | Axial Piston variable displacement Triplex pump for driving of Drill Head Rotation, Main Hoist, Mud Pump & Line Winch. | Maker: DANFOSS 1st Pump: 150LPM at 28.5MPa 2nd Pump: 120LPM at 25MPa 3rd Pump: 102 LPM at 25MPa |
Mud Pump | Type | Reciprocating Pump Triplex Plunger |
Model | BW250 | |
Stroke | 100mm(3.9 inch) | |
Output volume | 250,145, 90, 52 L/min (66, 38, 24, 14 US Gallons/min) | |
Discharge pressure | 2.5, 4.5, 6.0, 6.0 Mpa (363, 653, 870, 870 psi) | |
Foot Clamp | Clamping Scope | 55.5-117.5 mm(2.19-4.63 inch) through hole dia. 154mm(6.06 inch) |
Other | Weight | 12500 Kg(27558 lb) |
Dimensions (L × W ×H ) | 6250×2220×2500mm (246×87.4×98.42 inch) | |
Transport Way | Steel Crawler |
HYDX-5A Full Hydraulic Core Drilling Rig 1500m drilling depth