(crawler hydraulic drilling rig for coal mines)
Modern coal extraction demands equipment capable of operating in confined spaces while delivering 300-500 kN of impact force. Crawler-mounted hydraulic drilling rigs now achieve 97% availability rates in continuous 20-hour shifts, far surpassing legacy pneumatic systems. These units combine 360° rotation with 15° slope adaptability, enabling precise 89-127 mm blast hole drilling at depths up to 40 meters.
Advanced hydraulic circuits maintain 28 MPa operating pressure with 5% efficiency loss over 8,000 service hours. Dual-pump systems deliver 220 L/min flow rates, enabling simultaneous drilling and bolting operations. Smart diagnostics predict 83% of mechanical failures 72 hours in advance, reducing downtime by 40% compared to 2015-era models.
Manufacturer | Max Torque (Nm) | Drill Depth (m) | Fuel Efficiency (L/hr) | Maintenance Cycle (hrs) |
---|---|---|---|---|
Sandvik DR412i | 13,200 | 38 | 16.5 | 500 |
Epiroc Boltec EC | 11,800 | 35 | 18.2 | 450 |
XCMG XDM56 | 14,500 | 42 | 15.8 | 600 |
Variable-frequency drives allow 15-35 rpm rotation adjustment for coal seams measuring 1.2-5.3 m in thickness. Customizable configurations include:
A 2023 deployment in Datong's 650m-deep shaft demonstrated 23% faster advance rates compared to competitor models. The rig completed 1,200 roof bolts across 4.2km of tunnels in 11 weeks, achieving 98.6% bolt tension compliance with 0.2mm alignment precision.
Integrated pressure relief valves activate within 0.03 seconds during overload conditions, maintaining structural integrity under 125% rated loads. Moisture-resistant seals extend component life by 3,000 hours in 95% humidity environments. Emergency stop systems halt all functions in 0.4 seconds, meeting MSHA 30 CFR §75.1725 standards.
The latest crawler hydraulic drilling rigs reduce particulate emissions by 62% through closed-loop fluid systems while cutting energy consumption to 18 kW·h per linear meter drilled. These advancements position hydraulic technology as the cornerstone for achieving 2030 carbon-neutral mining targets without compromising 450-ton daily production quotas.
(crawler hydraulic drilling rig for coal mines)
A: It is designed for efficient drilling and bolting in underground coal mines, offering mobility on rough terrain via crawler tracks and powered by hydraulic systems for precision and power.
A: The crawler-mounted version features tracked mobility, enabling stability and movement in confined or uneven coal mine environments, unlike static or wheeled rigs.
A: They incorporate explosion-proof components, dust suppression systems, and emergency stop mechanisms to meet strict coal mine safety regulations.
A: Yes, many hydraulic bolting rigs integrate drilling and bolting capabilities, streamlining roof support processes in a single machine.
A: Regular inspection of hydraulic fluids, track alignment, and wear-prone components like drill bits and hoses is essential to ensure longevity and performance.