Active Member
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[China]
Address: 167 Yuxiang Street, Shijiazhuang, Hebei province, China
Contact name:Gina
Shijiazhuang Coal Mining Machinery Co., Ltd. |
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CMJ2-27 FLAMEPROOF ROCK DRILLER FOR BLASTING HOLE IN THE UNDERGROUND COAL MINE
CMJ27 Fully Hydraulic Jumbo is also known as rock driller, is designed for blasting hole drilling in a roadway, especially in a rock roadway in the underground coal mine. It is widely used in the construction of coal mine, metal mine, hydropower station, railway, etc.
The machine can not only drill holes in working face but also drill holes on roof, sideway, floor. The drilling boom can rotary 360 degree, it can make the drilling in any direction and angle. This machine can also be used as a roof bolter.
The max. hardness it can drill is 130Mpa, the drilling speed can reach 2 meters per minute.
Besides coal mine, it can also used in some other mines and
projects for the blasting hole
SPECIFICATION of CMJ2-27
Description | Unit | Value | ||
|---|---|---|---|---|
Whole machine | Drill boom |
| 2 | |
Application section area | m2 | 27 | ||
Drilling scope(W*H) | mm | 6000×4800 | ||
Dimensions (L*W*H) | mm | 8420×1300×1750 | ||
Min. turning radius | mm | 6000 | ||
Stabilize method in working state |
| Cylinder support | ||
Working width | mm | 2100 | ||
Weight | kg | 9500 | ||
Drilling dia. | mm | φ27～φ55 | ||
Drilling depth | mm | 2530 | ||
Rinse water pressure | MPa | 0.6～2 | ||
Drilling rod | mm | 28(for φ42 and above holes) | ||
Noise | dB(A) | ≤125 | ||
Drilling part | Characteristic of drilling |
| Rotation and punch | |
Punching device | Punching energy | J | 150 | |
Punching frequency | Hz | 34 | ||
Working pressure | MPa | 13 | ||
Working flow rate | L/Min | 50 | ||
Nitrogen pressure of accumulator | MPa | 3.5 | ||
Slewing mechanism | Rated torque | N·m | 320 | |
Rated rotation speed | r/min | 220 | ||
Working pressure | MPa | 14 | ||
Working flow rate | L/min | 25 | ||
Pressure of rinse water | MPa | 0.6～1.2 | ||
Drilling dia. | mm | Φ27～Φ55 | ||
Drilling rod | mm | 28 | ||
Apothem | mm | 108 | ||
Overall dimensions (L*W*H) | mm | 702×200×192 | ||
Weight | kg | 71 | ||
Propeller | Characteristics |
| With stroke times mechanism
| |
Propelling type |
| Cylinder propel, cable wire haulage | ||
Total length | mm | 4335 | ||
Propelling stroke | mm | 1265 | ||
Propelling force | kN | 7.4 | ||
Propelling speed | mm/min | 800～2000 | ||
Return speed without load | mm/min | 20000 | ||
Working pressure | MPa | 7.5 | ||
Working flow rate | L/min | 16 | ||
Drilling boom | Characteristic |
| Light rotation drilling boom | |
Boom length | mm | 3400 | ||
Compensation stroke | mm | 1800 | ||
Tilt angle | (°) | Down 105° up15° | ||
Boom rotation driven type |
| Hydraulic cylinder | ||
Boom rotation angle | (°) | Inner 45° outer 45° | ||
Boom horizontal up and down angle | (°) | Up 55° down16° | ||
Boom rotation angle | (°) | ±180 | ||
Working pressure | MPa | 16 | ||
Traveling mechanism | Traveling type |
| Crawler type | |
Driving mechanism type |
| Hydraulic motor driven | ||
Traveling speed | km/h | 1.6 | ||
Gradient | (°) | 14° | ||
Characteristic |
| Inner set hydraulic motor with reducer | ||
Width of track shoes | mm | 400 | ||
Working pressure | MPa | 20 | ||
Working flow rate | L/min | 60 | ||
Hydraulic power pack | Working pressure | MPa | 20 | |
Motor | Rated power | kW | 55 | |
Type |
| YBK2-250M-4 | ||
Rated voltage | V | 660/1140 | ||
Phase |
| 3 phase AC | ||
Frequency | Hz | 50 | ||
Rated rotation speed | r/min | 1480 | ||
Flame proof identification |
| ExdI | ||
Proof grade |
| IP55 | ||
Oil pump | type |
| Variable plunger pump + gear pump | |
Rated pressure | MPa | 20 | ||
displacement | ml/r | 2×90+25 | ||
Oil tank | capacity | L | 470 | |
Electroniccontrol device | Flame proof starter | Model |
| QJZ-160/1140(660) |
Rated pressure | V | 1140/660 | ||
Rated current | A | 160 | ||
phase |
| 3 phases AC | ||
frequency | Hz | 50 | ||
Proof identification |
| Exd[ib]I | ||
Proof grade |
| IP54 | ||
Protection functions |
| Overload, short circuit, over voltage, lose voltage, leakage | ||
Auxiliary device | Water supply | Woking pressure | MPa | 0.6~1.2 |
Working flow rate | L/min | 66 | ||
Water pump type |
| Multi-stage centrifugal pump | ||
Max. pressure | MPa | 3 | ||
Air supply | Working pressure | MPa | 0.4 | |
Working flow rate | m3/min | 0.2 | ||
Compressor type |
| Piston reciprocating | ||
Max. pressure | MPa | 0.7 | ||
Air discharge | m3/min | 0.2 | ||
Company's name: Shijiazhuang Coal Mining Machinery Co., Ltd.
Company's address: 167 Yuxiang Street, Shijiazhuang, China.
Contact person: Gina
Tel: +86 311 8538986
Fax: +86 311 85538888
Email: ginazi@163.com
Website: www.coalcutting.com
