Liebherr R 9250 250t 2007-2025 - Technical data

R 9250 - Product Description

Powertrain and Design

The R 9250 is a mining excavator powered by a Cummins QSK45 engine delivering 960 kW / 1,287 HP. This four-stroke, turbocharged V-engine has a displacement of 45 liters. The excavator features a well-balanced design that ensures high stability and reliability in extreme conditions. The electronic machine control system Litronic Plus allows for precise and quick manipulation, enhancing operational efficiency.

Undercarriage and Hydraulics

The R 9250’s undercarriage includes dual axial piston motors on each side frame and planetary gear drives, providing effective power utilization. The hydraulic system consists of three variable displacement axial piston pumps for optimal oil flow management according to working conditions. This configuration enables efficient execution of various operational tasks while ensuring high cutting power.

Operating Parameters

The R 9250 has an operating weight of 250,000 kg with a backhoe attachment and 253,500 kg with a shovel attachment. The bucket capacity ranges from 13.00 to 17.00 m³, with a breakout force of 859 kN (193,111 lbf). Furthermore, the maximum digging depth reaches 8.70 m, allowing the machine to operate effectively in varied mining environments.

Optional Equipment

The R 9250 provides various options for additional equipment, including a central lubrication system, ergonomic operator seats, and extended service intervals. The integration of modern technologies, such as the electronic cylinder damping system, enhances operator comfort and movement precision. Different attachment options, including digging buckets and dump buckets, further increase the operational versatility.

Safety and Technical Data

The R 9250 is equipped with advanced safety features, including a FOPS-certified cabin and a health monitoring system. Additionally, the machine meets high environmental protection standards, enabling the use of biodegradable hydraulic oils. Key technical specifications include a maximum hydraulic pressure of 320 bar (4,640 psi) and operation capabilities in extreme conditions from -40 °C to +55 °C.