Tunnel Face Drilling Rigs

SMC-UJ21D Tunnel Face Drilling Rig – Optimized for Precision, Stability, and Efficiency

The SMC-UJ21D Tunnel Face Drilling Rig is engineered to deliver peak performance in underground mining and tunneling operations. Designed to meet the demanding requirements of drilling efficiency, mobility, and operational stability, the UJ21D combines cutting-edge design with field-proven reliability.

Built on SMC’s patented self-balancing chassis, this advanced jumbo rig features an optimized component layout and a ±10° rear axle swing frame for superior adaptability across varying geological conditions and tunnel terrains. Whether you’re working in confined spaces or on uneven ground, the SMC-UJ21D ensures steady, accurate, and efficient drilling.

Key Features:

Self-Balancing Chassis
Patented design enhances stability and adaptability, reducing vibration and improving drilling precision.

Optimized Layout
On-board systems are strategically arranged for ease of maintenance, improved weight distribution, and better operational balance.

Rear Axle Swing Frame (±10°)
Increases the rig’s maneuverability and terrain adaptability, especially in irregular tunnel environments.

High Drilling Efficiency
Designed to achieve fast, accurate face drilling, reducing cycle times and maximizing productivity.

Robust Build Quality
Heavy-duty components and durable materials ensure long service life even in the harshest underground conditions.