The UDL392RH is designed specifically for medium‑deep hole drilling operations in production drifts with cross‑sectional dimensions of 3.5×3.7 m and above. Adhering to a simple and practical design philosophy, it offers outstanding advantages in high reliability, high productivity, and low operating costs. UDL392RH is powered by a high‑output diesel engine, combined with a heavy‑duty four‑wheel drive, an articulated steering chassis, and a FOPS‑certified safety canopy for robust protection. Its core working unit is the 20 kW Sandvik LD120S hydraulic rock drill, which ensures stable and high penetration rates across various rock types while significantly extending tool life. The automatic control function of the THC hydraulic drilling system allows the operator to focus entirely on safe, fast, and accurate drilling. The well‑thought‑out overall layout provides excellent driving stability and a wide field of view for the operator. The UDL392RH is easy to operate and maintain – all routine maintenance can be performed at ground level, eliminating the need for climbing and greatly improving service efficiency and safety.

• SAFETY FIRST WITH UNOBSTRUCTED VISION
• Operator safety has always been the top priority. During drilling operations, the operator is protected inside the FOPS-certified canopy, witch effectively shields against the risk of falling objects. At the same time, the operator has a clear and direct view of the rock drill's working status, eliminating blind spots and reducing the risk of uncontrolled operations. This enables precise control and efficient drilling performance.

• STABLE SUPPORT FOR PRECISE DRILLING
• The horsehoe-shaped boom carrier design provides stable mechanical support for the feed beam during drilling, effectively reducing vibration and deviation. This ensures that the position, angle, and depth of every borehole are precisely controllable, resulting in superior hole quality.

• POWERFUL ROTATION WITH RELIABLE DURABILITY
• The rotation and oscillation of the boom are driven by helical swing cylinders, whose unique structure prevents sand and mud from entering the gear clearances, ensuring reliable operation and reducing the need for frequent maintenance. Moreover, the output torque exceeds the actual demand by 150%, and this ample torque reserve ensures smooth and stable drilling even in complex rock formations, unaffected by fluctuations in resistance.