Technical Description
The Kobelco SK75SR-3E is a compact, short rear swing hydraulic excavator designed for efficient and versatile operation in confined spaces. Powered by an Isuzu 4LE2 engine delivering 56.3 hp at 2000 rpm and producing a maximum torque of 154.9 lb-ft at 1800 rpm, it offers a balance of power and fuel efficiency compliant with Tier IV emissions standards. The machine's operating weight is approximately 17,108 lbs, featuring a crawler length of 9.3 ft, a track gauge of 6.1 ft, and a tail swing radius of 4.8 ft, allowing excellent maneuverability in tight job sites.
Its hydraulic system includes two variable displacement pumps with a maximum discharge flow of 12.2 gpm and a travel circuit pressure of 4260 psi, enabling smooth and responsive control. The SK75SR-3E has a maximum bucket digging force of 16,456 lbs (ISO standard) and offers two boom/stick options: Option 1 provides a maximum digging depth of 13.8 ft and a maximum reach of 21.3 ft, while Option 2 extends the maximum digging depth to 15 ft and vertical wall digging depth to 14.3 ft.
Additional features include a powerful swing mechanism with 11.5 rpm speed and 12,500 lb-ft swing torque, a drawbar pull of 17,300 lbs, 70% gradeability, and an oil disc parking brake per motor. Fuel capacity stands at 31.8 gallons, with cooling, engine oil, and hydraulic oil tank capacities respectively at 2.3, 3, and 9.6 gallons. The crawler shoe width is 23.6 inches, supporting stability and optimal ground clearance of 13.8 inches. The cab features sound suppression and electromagnetic compatibility compliant shielding for operator comfort and reduced noise emissions. Overall, the Kobelco SK75SR-3E excels in tight-space digging applications with robust power, hydraulic efficiency, and excellent working ranges.
