CYTJ76 Mining Hydraulic Roadheader (commonly known as DD4)
CYTJ76 Mining Hydraulic Tunneling Drill Rig (commonly known as DD4): This is a brand-new, high-performance product specifically designed and developed for tunneling and rock-drilling operations in tunnels, culverts, and other underground excavations in fields such as mining, water diversion, railways, highways, and national defense.
Keywords:
Roadheader, scraper loader, mine car
Category:
Product Details
CYTJ76 Mining Hydraulic Tunneling Drilling Rig (commonly known as DD4): This is a brand-new, high-performance product specifically designed and developed for tunneling and rock-drilling operations in mines, water diversion projects, railways, highways, national defense, and other similar fields. It represents the company’s comprehensive upgrade and refinement of existing tunneling drilling rigs, incorporating proprietary technological innovations tailored to specific site conditions. The machine features a highly reliable and safe all-wheel, four-wheel drive system with wet brakes; it employs fully hydraulic single-arm rock drilling and can be equipped with various high-power rock drills. Its rock-drilling speed ranges from 0.8 to 2.5 meters per minute, and it is suitable for a wide range of surrounding rock conditions. Powered by a China IV diesel engine, it boasts a four-wheel, four-drive, tire-mounted articulated chassis with a climbing capability of 14° (25%) and a travel speed of 13.5 km/h.
| Model |
CYTJ76 |
|||||
| Project | Unit | |||||
|
Overall system performance |
Number of drill holes | one | 1 | |||
| Adapt to tunnel cross-section | square meter | 40 | ||||
|
Transportation status dimensions |
long |
mm |
12,162 ± 200 | |||
| Wide | 2064 ± 100 | |||||
| High | 2885 ± 100 | |||||
| Minimum turning radius (outer side) | mm | ≤5900 | ||||
| Stable vehicle operation mode | — | Hydraulic outrigger | ||||
| Minimum ground clearance | mm | ≥270 | ||||
| Overall machine weight | kilogram | 15,500 ± 300 | ||||
| Drill hole diameter | mm | 33-76 | ||||
|
Drilling (Chiseling) Machinery |
Type characteristics | — | Impact + Rotation | |||
|
Impact Institution |
Work pressure | bar | 130-180 | |||
| Work flow | L/min | 75-92 | ||||
|
Rotation Institution |
Work pressure | MPa | 8.5 | |||
| Work flow | L/min | 75 | ||||
|
Propeller |
Propulsion method | -- | Oil cylinder - steel wire rope | |||
| Rated thrust | kN | 12.5 | ||||
| Advance the journey | mm | 1700 | ||||
| Rock drilling speed | mm/min | 2 | ||||
| Opening advancement pressure | bar | 40 | ||||
| Rated propulsive pressure | bar | 80 | ||||
|
Walking mechanism |
Walking style | — | Tire-type | |||
|
Walking Speed |
Grade I | km/h | 6 ± 0.4 | |||
| Second gear | 15 ± 1.0 | |||||
| Rear axle swing angle | (°) | ±8 | ||||
| Climbing ability | (°) | ≥14° (Applicable slope range: -14° to +14°) | ||||
| Diesel engine | Output power | kW | 66 | |||
|
Electric motor |
Electric machine |
Rated power | kW | 55 | ||
| Rated voltage | V | 380 | ||||
| Rated current | A | 102 | ||||
| Hydraulic pump station |
Oil pump |
Traffic | L/MIN | 140 | |
| Rated pressure | MPa | 21 | |||
|
Auxiliary work device |
Gas supply device |
Work pressure | MPa | 0.8 | |
| Work flow | L/min | 770 | |||
| Motor | Rated voltage | V | 380 | ||
| Rated power | kW | 5.5 | |||
|
Water supply system (external supply) |
Work pressure | MPa | 1.2 | ||
| Work flow | L/min | 83 | |||
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Jiangxi Sitong Heavy Industry Machinery Co., Ltd
Address: Jinguang Avenue, Anyuan District Industrial Park, Pingxiang City, Jiangxi Province, China
Phone:+86 13907996020, General Liu
Phone:+86 13907998390, General Wang
Email:jxstzg@163.com
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