
Hfj33 Tunneling Jumbo Drilling Rig Equipment Hydraulic Blasthole Underground Mining Drill Rig. Versatile Application: Suitable for road, railway, hydropower, and underground tunnel construction projects. Advanced Control System: Full hydraulic pilot proportional control ensures accurate operation and low failure rates. Efficient Drilling Capability: Equipped with high-frequency hydraulic rock drills for efficient customer needs. Flexible Arm Configuration: Available with 2+1 or 3+1 heavy-duty drill arms for various section sizes. Automatic Maintenance Features: Includes automatic butter filling system, self-opening cable reel, and water pipe reel. High Mobility: Walking speed up to 14.5 km/h and climbing angle of 15 degrees for rough terrain. Comprehensive Certification: Meets CE, ISO 9001:2000, and ISO 9001:2008 international safety standards.