The Sandvik DD422i is a next-generation fully computerized underground face drill rig, engineered for high-precision, safe, and efficient development drilling in coal, limestone, iron ore, and base metal mines across India. Built by Sandvik Mining and Rock Solutions—a global leader in mining technology—the DD422i integrates semi-autonomous operation, real-time data analytics, and advanced safety systems to maximize productivity while minimizing human exposure in hazardous zones. It is widely deployed in underground mines of Jharkhand, Odisha, Chhattisgarh, and Karnataka, where digital transformation in mining is accelerating , .
✅ Intelligent Drilling System: Powered by Sandvik’s iSURE® navigation and iQ software for automatic boom positioning and drill pattern execution
✅ Remote Operation Capability: Operator can control rig from safe distance via cabin or external console—ideal for gassy or unstable faces
✅ High-Precision Drilling: Achieves ±20 mm accuracy in hole placement using laser-guided alignment
✅ Eco-Efficient Power: Tier IV Final compliant engine with 30% lower fuel consumption vs. older models
✅ Enhanced Safety: Equipped with gas detection, fire suppression, ROPS/FOPS cabin, and emergency stop protocols
✅ Modular Design: Quick-change tooling system supports 38–51 mm drill steel for versatile hole patterns
✅ Real-Time Telematics: Live performance monitoring via My Sandvik Digital Platform for predictive maintenance
Brand Name: Sandvik
Model: DD422i
Category: Underground Face Development Drill Rig
Application: Development drifting, cross-cutting, and bench drilling in underground mines
Drill Steel Diameter: 38 mm – 51 mm
Max Hole Depth: Up to 4.3 meters (standard); extendable with rod options
Number of Booms: 2 mechanized booms with independent control
Engine Power: 129 kW (173 HP), Tier IV Final diesel
Operating Weight: Approx. 18,500 kg
Cabin Type: ROPS/FOPS certified, air-conditioned, ergonomic
Gradeability: 1:3 (33%)
Ground Clearance: 350 mm