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| Type: | Hydraulic Core Drilling Machine | Model: | CR12 |
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| Drilling Capacity: | BQ 1350M NQ 1050M HQ 720M PQ 470M | Engine: | Cummins QSB6.7 (EU Stage IIIA) |
| Transport Dimensions: | 5980×2240×2480mm | WEIGHT: | 8200 Kg |
| Power: | 153kW (205HP) | Applicable Industries: | Construction Works |
| High Light: | Surface Core Drilling Rig,Hydraulic Core Drilling Rig,1200m Core Drilling Rig |
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CR12 1200m Full Hydraulic Surface Core Drilling Rig Machine
1. Slippage type power head, can be offset to the side, easy to take the core and hosting and lifting work .
2. Mounting of main winch on mast minimizes coring drill rig’s vibration.
3. The telescopic mast ensures the reliability of drilling.The underside end of the drilling mast anchors the ground surface while drilling, providing additional stability. While transportation the mast can be moved to center of gravity of the rig for more safety.
4. Patented jaws with chuck and hydraulic opening/ spring closing function insure fail-safe operation. Spring clamp and disk chuck clutch drill rods securely. Drill head with direct drive from hydraulic cylinder ensure stability during drilling process, as well as more accurate and reliable with pressure regulation while drilling with pressure increase or decrease
5. The operator panel is equipped with non-fixing control Joysticks, which provide additional safety for the operator. Drilling and rotation joystick with friction damper and non-fixing hoist joystick provide convenience and safe operation. There is auto alarm function for low level of hydraulic oil.
6 .DUAL MAST RAISING CYLINDERS
Equipped with counterbalance valves for increased safety when positioning the mast.
7. SELF-CONTAINED OPERATOR PANE
The simple hydraulic system is easy to operate and maintain, and lift-to-shift levers provide additional operator safety.
8. SIMPLE HYDRAULIC DESING
Dired-coupled hydraulic pumps with a PTO-driven auxiliary pump allow for easy maintenance.
9.SOLID LATTICE MAST DESIGN
Rigid design provides superior performance and reliability even under the toughest conditions.
10. NITRO-CHUCK
patented nitrogen gas spring jaws with hydraulic open/spring close function ensuring fail-safe operation.
| Diesel Engine | Model | Cummins QSB6.7 (EU Stage IIIA) |
| Displacement | 6.7L | |
| Power | 153kW (205HP) | |
| Rated RPM(Factory setting) | 2000rpm | |
| Drilling Capacity | BQ | 1350 m |
| NQ | 1050 m | |
| HQ | 720 m | |
| PQ | 470 m | |
| Drill Head | Rotation Motor |
Two-speed Hydraulic Motor Rexroth of Germany |
| RPM | Three Shifts/ Step less Change 0-1250 RPM | |
| Ratios |
1st 8.276:1 2nd 4.164:1 3nd 1:1 |
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| Hydraulic Chuck(PQ) |
Hydraulically opened, Disc Spring Clamping, Normally C Closed Type Axial Holding Capacity of 228000 N |
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| Max. Torque | 4750 N·m | |
| Hold Diameter | 121 mm | |
| Max. Lifting capacity of Spindle | 220 kN | |
| Max. Feeding Power | 110 kN | |
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Primary Pump
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Hydraulic pump: Axial Piston variable displacement Triplex pump for driving of rotator, winch mud pump & leveling jacks. With load sensing system. |
Producer: Danfoss of Denmark 1st Pump:260LPM at 31.5MPa 2nd Pump:130LPM at 28MPa 3rd Pump: 130 LPM at 28MPa |
| Hydraulic Tank | Capacity | 420 L (111 US Gallons) |
| Capacity of Main Hoist | Hoisting Speed (single wire) | 0-80m/min(bare drum) |
| Hoisting force (single wire) | 800kN | |
| Steel Wire Diameter | 22 mm(0.86 inch) | |
| Steel Wire Length | 45 m | |
| 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 | 1600 m | |
| Mast | Mast Height | 9.5 m |
| Mast Adjusting Angle | 0°—90° | |
| Drilling Angle |
45º off horizontal to 90ºvertical down |
|
| Feeding Stroke | 3650 mm | |
| Slippage Stroke | 1500 mm | |
| Feed Pull | 18000kg | |
| Feed Thrust | 7500kg | |
| Rod Pull | 3m or 6m(9.84feet or 19.68feet) | |
| Mud Pump | Type | Reciprocating Pump Triplex Plunger |
| Model | BW250 | |
| Stroke | 110mm(4.3 inch) | |
| Output volume | 250,180,122 L/min | |
| Discharge pressure | 5.0, 6.0, 8.0 Mpa | |
| Foot Clamp | Clamping Scope |
55.5-118 mm through hole Ф165mm |
| Others | Weight | 8200 Kg |
| Transport Dimensions (L × W ×H ) | 5980×2240×2480mm | |
| Transport Way | Steel Crawler |
