90 Degree Portable Well Drilling Rig For Mining Exploration
Full Hydraulic Core Drilling Rig For Mining Exploration Drilling
A General Introduction
MDT-6 Hydraulic Core Drilling Rig,an up-to-date new product made by
H.H. Drill-Tech Drilling Machinery Co., Ltd. is a thoroughly
new-typed drilling rig developed on the basis of the advanced
techniques in the world. MDT-6 is reasonable in design, excellent
in performance, easy for operation and convenient for maintenance.
1.Main Features of the rig:
The rig, equipped with tracks, has a hydraulic driving system. It
owns a brief but advanced structure, with its power head driven by
a variable motor and its speed adjustable for 2 gears. With the oil
cylinder working with a speed-changeable chain, its performance is
stable and reliable. The mast is adjustable in the range from 0° to
90° to ensure a proper hole-drilling angle. The low gravity center
of the rig promises a steady operation. And it provides the
operators with a convenient and comfortable working circumstance
with a wide view. In short, the rig has a beautiful outline and
shows a people-oriented design idea.
1)Reliable Quality
The main parts and auxiliary equipment, including the engine,
diesel engine, hydraulic pump, gear reducer and some key valves and
hydraulic accessories, are all products with well-known brands.
2) High Efficiency
Big torque, powerful driving force, rational and practical design,
advanced controlling mode and a 6-meter-long (19.7 feet) drilling
rod guarantee the high operation efficiency of the rig.
3)Environmental Protection
The diesel engine is professionally designed to reduce noise and
other contamination (The noise can not be over 72db), which makes
the rig proper to be operated in urban areas.
4)Energy Saving
The advanced technique of loading-sensor-controlling helps the rig
reduce its consumption of driving force and heat discharge to the
minimum extent.
MDT-6 has an outstanding external appearance, a compacted
structure, a reliable function, and a flexible operating system.
All these factors have made the rig the best choice among the same
products in both domestic and abroad markets.
2.Application Range
MDT-6 can be applied to both slant and vertical drilling. Being a
rig equipped with diamond and the carbide alloy bit drilling, it
can be used in the fields of geology, metallurgy, coal mining, nuke
industry and hydrology measuring.
II. Main Performance Parameters of MDT-6
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 6CTA (turbocharged and charge water cooled) |
| Displacement | 8.3L (2.19 US Gallons) |
| Power | 179kW (240HP) |
| Rated RPM(Factory setting) | 2200rpm |
| Drilling Capacity | BQ | 2000 m(6560 feet) |
| NQ | 1600 m(5248 feet) |
| HQ | 1300 m(4264 feet) |
| PQ | 1000 m(3280 feet) |
| Drill Head | Rotation Motor | Double Hydraulic Motor
-variable and Reversible
Maker: SAUER-DANFOSS |
| RPM | Two Shifts/ Stepless Change 0-1100 RPM |
| Ratios | 1st 8.776:1
2nd 2.716:1 |
| Head Opener | sidewise sliding way with hydraulic drive |
| Max. Torque | 6400 N·m(4717 lbf·ft) |
| Hold Diameter | 121 mm(4.76 inch) |
| Max. Lifting capacity of Spindle | 220 kN(49456 lbf) |
| Max. Feeding Power | 110 kN(24728 lbf) |
| Primary Pump | Hydraulic pump:
Axial Piston variable displacement Triplex pump for driving of
rotator, winch mud pump & leveling jacks.
With load sensing system. | Maker: DANFOSS
1st Pump:200LPM at 32MPa
2nd Pump:120LPM at 28MPa
3rd Pump: 120 LPM at 28MPa |
| Hydraulic Tank | Capacity | 420 L (111 US Gallons) |
| Capacity of Main Hoist | Hoisting Speed (single wire) | 44m/min(bare drum) |
| Hoisting force (single wire) | 120kN(26976 lbf) |
| Steel Wire Diameter | 22 mm(0.86 inch) |
| Steel Wire Length | 60 m(196.85 feet) |
| Capacity of Wireline Hoist | Hoisting Force (single wire) | 15 kN(3372 lbf) (bare drum) |
| Steel Wire Diameter | 6 mm(0.24 inch) |
| Steel Wire Length | 2000 m(6560 feet) |
| Mast | Mast Height | 11.2 m(37.74 feet) |
| Mast Adjusting Angle | 0°—90° |
| Drilling Angle | 45º off horizontal to 90ºvertical down |
| Feeding Stroke | 3800 mm(150 inch) |
| Slippage Stroke | 1100 mm(43.3 inch) |
| Feed Pull | 22000kg(48510 lb) |
| Feed Thrust | 11000kg(24255 lb) |
| Mud Pump | Type | Reciprocating Pump Triplex Plunger |
| Model | BW320 |
| Stroke | 110mm(4.3 inch) |
| Output volume | 320,230,165,118 L/min
(84.5, 61, 44, 31 US Gallons/min) |
| Discharge pressure | 4.0, 5.0, 6.0, 8.0 Mpa
(580, 725, 870, 1160 psi) |
| Foot Clamp | Clamping Scope | 55.5-117.5 mm(2.18-4.63 inch)
through hole Ф154mm(6.06 inch) |
| Others | Weight | 14000 Kg(30864 lb) |
| Transport Dimensions (L × W ×H ) | 6250×2240×2750mm
(20.5×7.34×9.02 ft) |
| Transport Way | Steel Crawler |
