Tunnel drilling without dead angles - hydraulic Drilling Rigs for excavation and conversion break the deadlock
Industry pain points: Traditional tunnel drilling relies on manual pneumatic drills or large rock drilling rigs - the former is inefficient and has great dust hazards (pneumoconiosis accounts for more than 90% of the total number of occupational diseases36; the latter is expensive and has poor mobility in narrow spaces, and often leaves dead angles in tunnel roofs, side walls and other locations. Your troubles: Equipment is in a dilemma - it must deal with low sections within 6 meters and 30° slopes810, while also controlling budgets and construction periods. Our solution: WGM-45 tunnel excavator converted hydraulic Drilling Rig - based on an excavator, equipped with a hydraulic rock drilling system to achieve 360° drilling without dead angles. Actual effect: Dust pollution is reduced by 80%9, drilling speed reaches 1-1.5 m/min (hardness F7-18 rock)4, and the cost is only 1/106 of a rock drilling rig.
I. Product value: Flexible and efficient tunnel drilling tool
WGM-45 excavator converted hydraulic drilling rig (Excavator Converted Drilling Rigs) is specially customized for tunnel engineering, turning excavators into multifunctional drilling platforms in seconds. Its core value lies in:
Spatial adaptability: H-shaped high-strength working arm supports 90° pitch + 180° swing1, combined with single/double-stage slewing mechanism, it can easily cover the tunnel working surface, top plate and side anchor holes and blast holes, completely solving the problem of "cannot reach, can not drill accurately".
Economic revolution: Directly use the hydraulic system of the excavator, no need to purchase the whole machine, and reduce the investment cost by more than 60%; the energy consumption is only 1/34 of that of pneumatic equipment, and the operating cost is compressed simultaneously.
Safety upgrade: Optional wireless remote control, the driver can control the Drilling in the cabin Rigs, away from the risk of collapse and dust damage; imported oil valves ensure accurate and stable pressure, and prevent high-pressure oil pipe burst accidents6.
2. Technical highlights: precision design empowers hard rock construction
360° no dead angle capability: double slewing bearings break through traditional mechanical limits, and horizontal holes to overhead holes are completed in one go (case: YGL-C150 drilling rig in the 180° fan construction of Ankang Tunnel8).
Strong rock penetration performance: hydraulic impact power head torque reaches 14,700 N·m2, combined with high-frequency impact (46 Hz, impact energy ≥85 joules 10), straight into the rock layer of Pu's hardness F7-18 without obstruction.
Intelligent control system: load-sensitive hydraulic technology dynamically matches the speed and feed force to prevent drilling; optional "rock entry mode" automatically optimizes parameters to reduce the operator's operating intensity 7.
3. Practical application: full coverage from anchor support to cross-section excavation
WGM-45 is not only an anchor hole expert, but also a versatile tunnel excavator:
Anchor construction: suitable for φ51-140 mm drilling tool 4, with self-drilling anchor rods to achieve drilling-grouting-anchoring in one go, especially suitable for gravel and gravel layers and other prone to collapse.
Pipe support: maximum drilling depth 27 meters (suitable for 36T excavator) 4, the accuracy meets the requirements of pipe fan-shaped hole layout, error ≤1%.
Excavation blasthole: replace manual air drills in projects such as Shenzhen Metro and Guiyang-Guangzhou Railway, and the single hole drilling time is shortened to 3 minutes, 5 times faster 57.
Engineering wisdom: In the Hangzhou Wenyi West Road Tunnel project, the similar low-headroom drilling rig KR300ES completed 35 meters deep piles at a working height of 11 meters 7——Drilling And Splitting The flexible combination of machines is the future direction of intensive tunnel construction.
Product features and tips
360° double rotation: ±180° turntable + 90° amplitude 18, no dead angle on the side top plate.
Imported hydraulic closed loop: German pump valve system pressure fluctuation ≤2%, life increased by 3 times 49.
Remote control zero blind spot: optional 10-meter wireless control, safe avoidance of falling rocks 26.
Energy saving king: energy consumption is 67% lower than that of pneumatic drills, saving 30 degrees of electricity per hour 10.
Tips: Regularly check the cleanliness of the hydraulic oil (NAS level 8 recommended) - 90% of valve core jams are caused by contamination
Jiangsu Aneng Drilling Equipment Technology Co., Ltd.
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