HYUNDAI ROBEX 55-7 CRAWLER EXCAVATOR

Technical Description

The Hyundai Robex 55-7 is a versatile midi excavator designed for efficient digging and loading operations. It offers two boom and stick options: Option 1 provides a maximum cutting height of 19 ft, digging depth of 12.6 ft, loading height of 13.3 ft, reach along ground of 19.8 ft, and vertical wall digging depth of 10.5 ft. Option 2 extends these capabilities with a cutting height of 19.5 ft, digging depth of 13.4 ft, loading height of 13.8 ft, reach along ground of 20.6 ft, and vertical wall digging depth of 11.4 ft. The bucket capacity is approximately 0.3 cubic yards, suitable for medium-scale earthmoving tasks. Dimensionally, the excavator has a ground clearance of 1.3 ft, a cab height of 8.4 ft, tail swing radius of 5.5 ft, and a width across the tracks of 6.3 ft, allowing for maneuverability in confined job sites. Powered by a 4-cylinder Hyundai 4TNV94L engine with a displacement of 186.4 cubic inches, it delivers 53 hp gross power at 2200 rpm and maximum torque of 149 lb-ft at 1400 rpm. The fuel tank capacity is 31.8 gallons, supported by a 2.7-gallon cooling system and 2.5 gallons of engine oil capacity. Hydraulics feature a pump flow capacity of 29.1 gpm with a relief valve pressure set at 3130 psi, maintaining powerful and responsive digging functions. The operating weight is 12,570 lbs, providing stability and balance. The swing mechanism operates at 9.3 rpm with a swing fluid capacity of 0.4 gallons. Mobility is facilitated by a ground pressure of 4.7 psi, travel speed of 2.6 mph, and drawbar pull of 11,700 lbs. The undercarriage includes 40 shoes and 5 track rollers per side with a track gauge width of 5 ft and shoe size of 15.8 in, ensuring durability and traction on diverse terrains. Operating voltage is 12 volts with a 60-amp alternator supply.