Engineered specifically to manage soft rock formations, high humidity, and steep-seam profiles characteristic of Northern Vietnam's underground mines.
Strategic analysis of roof stabilization operations in the Vietnamese mineral extraction and civil infrastructure sectors.
Vietnam’s coal capital, primarily managed by the state-owned Vinacomin (Vietnam National Coal-Mineral Industries Holding Corporation), faces extreme geotechnical hazards as operations descend beyond -300 meters sea level. Key mining zones like Cam Pha, Uong Bi, and Ha Long exhibit complex fault structures, high geothermal temperatures, water influx, and highly unstable mudstone and siltstone hanging walls.
Traditional wood or lightweight steel supports are no longer viable under intense vertical stresses. Our hydraulic roof bolting rigs provide high torque, rapid drilling speeds, and precision anchoring, ensuring that mechanical expansion shell bolts and resin grouted anchors are tensioned to strict geological parameters. This minimizes the risk of catastrophic roof falls in tunnels, drift ways, and stopes.
With Vietnam's rapid industrialization and strict enforcement of occupational safety regulations (such as Ministry of Labour, Invalids and Social Affairs directives), mining operators are aggressively replacing outdated pneumatic tools with high-efficiency hydraulic roof bolting rigs. Hydraulic systems generate up to 3 times the torque of standard pneumatic systems of comparable weight, enabling deep holes to be drilled through hard sandstone overlays within minutes.
Beyond coal mining, Vietnam is witnessing massive infrastructure developments, including the North-South Expressway tunnels, the Hanoi and Ho Chi Minh City Metro systems, and large-scale hydroelectric diversion tunnels in mountainous Northwest regions like Son La and Lao Cai. These tunnels cross varied faults and weather zones, requiring versatile rock reinforcement tools.
Our dual-power (pneumatic-hydraulic and full-hydraulic) rigs are engineered to install active anchor bolts, cable bolts, and friction stabilizers (Split Sets). They provide immediate load-bearing capacity in fractured rock mass, keeping workers and heavy tunneling machinery safe under the New Austrian Tunneling Method (NATM).
Due to the warm, high-humidity, and saline conditions in deep Vietnamese mines, hydraulic systems must feature anti-corrosive oil reservoirs, heavy-duty seal kits (such as Viton or polyurethane seals), and robust water cooling circuits to maintain hydraulic fluid viscosity. Shandong E-Way Machine specializes in customized exports matching these specific parameters.
These high-capacity rigs are designed for massive roadway excavations, providing rapid cycle times and stabilizing large-span underground cavities.
To assist geological engineers in selecting the correct equipment configuration, the table below compares the mechanical parameters of E-Way systems.
| Parameter Class | Pneumatic Roof Bolters (e.g., MQT-130) | Full-Hydraulic Bolting Rigs | Vietnam Mining Adaptability |
|---|---|---|---|
| Power Source Required | Compressed air supply line (5-7 bar flow rate) | On-board electric-hydraulic power pack or diesel engine | Hydraulic systems are highly recommended for remote mines without massive compressor units. |
| Max Dynamic Torque | 110 Nm to 130 Nm | 180 Nm to 350 Nm (High rotational forces) | Hydraulic torque is crucial for drilling through hard quartzitic sandstone overlays. |
| Drilling Speed | Moderate (0.5 to 1.2 meters per minute) | High (1.5 to 2.5 meters per minute) | Improves excavation cycle times, crucial for preventing localized rock relaxation. |
| Unit Weight & Safety | Highly portable (20-35 kg), handheld with leg-mounts | Heavy (Jumbo / Rig mounted or portable modular) | Pneumatic units offer rapid deployment; Hydraulic rigs provide remote operator protection. |
| Moisture Tolerance | High, but exhaust requires proper lubrication | Completely sealed circuits, highly resistant to mine water | Hydraulic systems eliminate freeze-up risks caused by expanding humid air in Vietnam. |
Shandong E-Way Machine Co., Ltd. operates a highly standardized production facility. Explore our localized manufacturing steps below:
Component Assembly
Highly precise mechanical and hydraulic valve assemblies are integrated by certified engineers.
Integral Assembly
The final connection of power units, drilling masts, and control valves is executed and verified.
Slice Machining
Precision gear and slide components are cut using advanced CNC tooling stations.
Drum Manufacturing
High-grade structural steel drums are lathed to precise engineering tolerances.
Precision Weld
All critical load-bearing joints undergo multi-pass gas shielded welding.
Assembly Table
Component alignment is tested to ensure error-free telescopic operations.
Automated Cutting
CNC-controlled plasma cutting tables dimension heavy structural panels.
Barrel Winder
Ensures optimal tensioning of wire feeds and cylindrical components.
Buried Submerged Welder
Heavy structural columns are processed via automated submerged arc welding.
How we bridge manufacturing quality with local regulatory guidelines across Vietnam's industrial sectors.
All exported drilling equipment conforms to TCVN (Vietnam National Standards) for underground electrical safety (flameproof explosion certification) and hydraulic burst pressure thresholds.
We coordinate directly with custom clearing houses at Haiphong Port and distribute directly to mining hubs in Cam Pha, Ha Long, and Uong Bi via secured transport networks.
On-site testing, commissioning, operator training, and supply of genuine spare parts (hoses, rotary motors, chuck plates) are managed directly by our localized technical agents.
Explore our full line of hydraulic anchor bolters, portable core drills, and heavy underground tunneling gear, delivered directly from our ISO-certified facilities.
Get answers to critical technical questions regarding the deployment and maintenance of roof bolting rigs in tropical, deep underground environments.
Given the tropical climate and high underground ambient temperatures in Vietnamese mining zones (often exceeding 35°C with humidity over 90%), we recommend utilizing ISO VG 46 or ISO VG 68 wear-resistant hydraulic oil.
These grades preserve their viscosity index and prevent rapid thermal breakdown, ensuring smooth valve operation and preventing internal motor cavitation. If operations are scheduled in deep-shaft zones with limited ventilation, flame-resistant hydraulic fluid (HFDU / HFC types) should be used to satisfy local coal mine safety guidelines.
Underground mines in Northern Vietnam, particularly coastal regions like Quang Ninh, frequently encounter acidic or saline water run-off. To combat corrosion, our manufacturing line integrates three layers of protection:
Our rigs are engineered to be highly compatible with international drill standards. The standard chuck accommodates hex or round drill rods suited for hole diameters ranging from ø28mm to ø42mm. This makes them ideal for installing standard M16, M20, and M22 threadbar anchor bolts and dynamic expansion shell systems commonly used by Vietnamese tunneling operators.
Yes. Our full-hydraulic systems can be coupled with customized flameproof electric motor pump stations. These pump packs are configured to align with standard Vietnamese industrial voltages: 380V, 660V, or 1140V at 50Hz.
Explosion-proof enclosures are certified to international standards (such as IECEx and Chinese MA certifications), ensuring safety compliance within gas-gassy or coal dust explosion-risk areas.
Connect directly with our engineering team for customized machine specifications, spare parts supply, and competitive port-to-port quotes tailored for the Vietnamese market.
