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HCR-8 Full Hydraulic Drilling Rig

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I. General Introduction
HCR-8 hydraulic drilling rig an up-to-date multifunctional product made by our factory, is a thoroughly new-type wireline core drilling rig developed on the basis of the market demand and the advanced techniques in the world. This HCR-8 wireline core drilling rig is suitable to use in plains, hills, high temperature as well as low temperature places. The main machine is integrated in structure, which consists of self-propelled chassis, power, mud pump and hoist, etc. It is wire-line coring, and at the same time has the unique top drive function. The maximum torque is 7200 Nm (5307 lbf ft), which will be much more suitable for large diameter drilling in coal bed methane (CBM), hydrology and water well. According to many years of experience in HDD field, our engineers install clamp and shackle device on the rig to relieve labor intensity, improve drilling efficiency and guarantee operator's safety. HCR-8 wireline core drilling rig is excellent in performance, high in working efficiency, easy for operation and keeps the operators from dangers.

II. Main Performance Parameters of HCR-8 Wireline Core Drilling Rig
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.

Power Unit Power 276 kW (370HP) at 2100 r/min
NQ 3000m(9840 feet)
Drilling Capacity HQ 2400 m(7870 feet)
PQ 1700 m(5570 feet)
Drill Head RPM of Spindle Wireline Core Drilling Rig Hydraulic Drilling Rig Three Shifts/ Stepless Change Three 0-1250 RPM
Max. Torque of Spindle 7200 Nm(5307 lbf·ft) at 170 rpm
1300 Nm(958 lbf·ft) at 1250 rpm
Spindle Diameter of the Hydraulic Drilling Rig 121 mm(4.76 inch)
Max. Lifting capacity of Spindle 295 kN(66316 lbf)
Max. Feeding Power 152 kN(34170 lbf)
Capacity of Main Hoist Hoisting force (single wire) 180kN
Steel Wire Diameter 26 mm
Steel Wire Length 50 m(164 feet)
Capacity of Wire line Hoist Hoisting Force (single wire) 15 kN(3372 lbf) (bare drum)
Steel Wire Diameter 6.3 mm(0.25 inch)
Steel Wire Length 2800 m(9184 feet)
Effective Hoisting Height 9.6 m(31.5 feet)
Mast Adjusting Angle of Hydraulic Drilling Rig 0°—90°
Mast Drilling Angle 45º off horizontal to 90ºvertical down
Feeding Stroke 4700 mm(185 inch)
Slippage Stroke 1100 mm(43 inch)
Foot Clamp Clamping Scope 55.5-117.5 mm(2.19-4.63 inch) through hole Ф154mm(6.06 inch)
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)
Others Weight 25000 Kg (55125 lb)
Transport Dimensions (L × W ×H ) 8300×2400×3500mm (326.8×94.5×137.8 inch)
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