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Liebherr is exhibiting the 350-tonne R 9400 Mining Excavator at the 2013 Bauma



At the 2013 Bauma trade fair in Munich, Liebherr is presenting the face shovel versionof its 350-tonne R 9400 mining excavator. With a 22-m³ bucket as standard equipment, the R 9400 is the ideal machine for loading a mining truck fleet in the 136 tonnes class. The R 9400 is available with either a diesel engine or an electric motor, for optimal flexibility in a wide variety of applications.

There are currently over thirty R 9400 hydraulic mining excavators operating in four countries. The latest R 9400 commissioned in a Ghanaian gold mine is the first model in face shovel configuration. The excellent productivity that the R 9400 is known for in backhoe configuration is expected in in face shove configuration.

The production-tailored attachment kinematics combined with a mining-optimized bucket shape ensure the highest crowd and breakout forces. Even under tough conditions the R 9400’s high digging force allows easy bucket penetration and high bucket fill factors to achieve high productivity.

The R 9400 follows the Liebherr design philosophy of maximizing the machines performance by improving the efficiency of all individual subsystems. Engineered for optimum serviceability the machine is designed to ensure maximum uptime.

Designed for hard application, the R 9400’s heavy duty 3-piece fatigue-resistant undercarriage provides efficient superstructure weight distribution and reduces ground bearing pressure enabling the necessary stability and reliability.

Innovative hydraulics, high-performance drivelines

Optimizing electrical, mechanical and hydraulic power distribution, the Litronic Plus System allows for easy control even when simultaneous movements are required. Every attachment cylinder is fitted with the patented Liebherr Electronic Damping System which provides controlled end-cushioning for fast and smooth machine’s motions. Intelligent and power-oriented energy management diverts the pump flow during boom lowering, allowing other cylinder motions to operate unimpeded.

The R 9400 is powered by a Cummins QSK50 diesel engine that complies with USA/EPA Tier 2 exhaust emission limits and has a rated output of 1250 kW (1675 hp).

The electric-motor drive also available is an economically viable alternative in a number of application areas, for instance machines intended for work in arctic regions.

Well-equipped cab, simple maintenance

The R 9400 has a wide, spacious cab that provides the operator with the comfortable working conditions needed for maximum productivity. Mounted on vibration dampers, it also reduces the noise level and creates an quiet environment that promotes the excavator operator’s own performance.

In addition to its excellent ergonomic design, the cab provides maximum protection for the operator. The robust steelwork of low-stress design and the safety-glass windows comply with the FOPS standard and protect the operator against falling material. For maximum safety there are several easily reached emergency stop buttons at ground level, in the cab and in the pump and engine compartments.

All machine accesses have been optimized. The R 9400's upperstructure is accessible via a powered 45° stairway fitted with handrails and the service drop down flap provides easy access to the main servicing features.  Fuel, engine & hydraulic oil, grease, windshield wash water can be refilled and drained from ground level.

Further information:

Swann Blaise

Telephone:          +33 369 49-2199

Fax:                      +33 369 49-2279



Source: Liebherr-International Deutschland GmbH