Tunneling Jumbo Kj321 Kj421 Kj422 Compact Two-Boom Jumbo for Straight Hole Face Drilling in Cavern Excavation with Console Automatic Drilling Reduced Over-Break

Tunneling Jumbo Kj321 Kj421 Kj422 Compact Two-Boom Jumbo for Straight Hole Face Drilling in Cavern Excavation with Console Automatic Drilling Reduced Over-Break. Modular Design for Accuracy: Special modular design ensures accurate, fast face drilling for straight holes and mechanized long-hole drilling. FOPS/ROPS Certified Safety: Cabin and canopy are certified for operator safety with FOPS/ROPS standards. Heavy-Duty Boom Suspension: Double tripod suspension ensures accurate hydraulic parallel holding in all directions. High Durability Feed System: Heavy-duty aluminium feed offers high bending and torsional resistance for maximum durability. Optimised Drilling Control: Control system keeps holes straight, reduces jamming, and maximizes tool life consistently. Global After-Sales Support: Engineers available at spots all over the world for on-site service and maintenance. Spare Part Commonality: Common spare parts across the product family make troubleshooting and maintenance easy. Versatile Drilling Coverage: Suitable for tunneling in cross sections ranging from 8 to 178 square meters.