HYUNDAI ROBEX 450-7 CRAWLER EXCAVATOR

Technical Description

The Hyundai ROBEX 450-7 is a large-scale hydraulic crawler excavator engineered for demanding earthmoving and material handling applications. Powered by a Cummins QSM11-C turbocharged six-cylinder engine, the machine delivers 320 net horsepower (239 kW) at 1,900 rpm with a maximum torque output of 1,320 lb-ft, providing robust performance across varied job sites. The excavator tips the scales at 96,300 pounds operating weight, maintaining excellent stability through its 9-foot track gauge and 49-shoe undercarriage design per side, which generates low ground pressure of 10.9 psi—ideal for environmentally sensitive terrain. This model accommodates multiple boom and stick configurations, with working radii extending up to 42.6 feet along ground and maximum digging depths reaching 29.3 feet, depending on configuration selection. The standard 2.9 cubic yard bucket can range from 1.9 to 4.2 cubic yards, offering operational flexibility for varied material handling requirements. Maximum cutting heights reach 37.8 feet with vertical wall digging depths of 25.3 feet under optimal configurations. The hydraulic system operates at 4,690 psi relief pressure with 200.8 gallons-per-minute pump flow capacity and 100.4-gallon fluid reservoir, enabling efficient power transmission to the working hydraulics. Additional features include a 10.3 rpm swing speed mechanism, 82,000-pound drawbar pull capability, and maximum travel speed of 3.3 mph. The cab provides ISO standard protection with all-around visibility, safety glass windows, and air conditioning, while the machine achieves 13.3 feet tail swing radius, minimizing spatial requirements on confined job sites.