LIEBHERR R950 TUNNEL LITRONIC CRAWLER EXCAVATOR

Technical Description

The Liebherr R950 Tunnel Litronic is a specialized crawler excavator engineered specifically for tunneling operations, combining robust construction with precision hydraulic systems for challenging underground work. Powered by a Tier 4 Final compliant D944 A7 diesel engine, this excavator delivers 204 net horsepower (152 kW) at 1,800 rpm according to ISO 9249 standards, with an optional 258 horsepower variant available for cutting head applications. The machine weighs 99,870 pounds during operation and features a compact 9.1-foot undercarriage width, making it ideally suited for confined tunnel environments where traditional equipment cannot operate. The hydraulic system operates at 5,076 psi and utilizes a variable displacement swashplate double pump configuration, providing maximum flow rates of 238 liters per minute with cutting head options supporting supplementary 80 liters per minute flow. Equipped with a 112-gallon fuel tank and 137-gallon hydraulic system capacity, the R950 sustains extended operational periods in demanding underground applications. The excavator maintains a 9.2-foot cab height and 1.1-foot ground clearance, optimizing visibility and maneuverability in restricted spaces. Its undercarriage design includes nine track rollers and two carrier rollers per side, providing excellent stability and traction control. The 24-volt electrical system features a three-phase alternator rated at 140 amperes and dual 180 ampere-hour batteries, ensuring reliable cold-start performance in underground conditions. Maximum drawbar pull reaches 62,947 pounds, enabling efficient material movement throughout tunneling operations.