The UDL391RH Compact long hole drill is designed for underground mining in production drifts ≥3m×3m. Embracing a simple yet practical design philosophy, it delivers high reliability, production efficiency, and low operating costs. Equipped with a high-powered diesel engine, heavy-duty 4-wheel drive frame, articulated steering carrier, and FOPS-certified operator canopy, the UDL391RH Compact long hole drill features a Sandvik LD120SH hydraulic rock drill delivering 22kW percussion power for stable, high-speed drilling performance. Its THC drilling hydraulic system with automatic control functions enables operators to focus on safe, fast, and accurate drilling processes. The optimized layout ensures excellent visibility and stability, while ground-level access to all service points simplifies operation and maintenance.