Kobelco SK75SR-3E

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Overview

KOBELCO’s SR hydraulic excavator has undergone a new evolution. By utilizing its full range of fuel-saving technologies in this SR model, we developed an unmatched low fuel consumption that provides a class leading standard of efficiency for engine-driven hydraulic excavators.

Outstanding performance in tight spaces, on-site safety, less stress for the operator … KOBELCO was first to understand these demands and in response developed SR, short rear swing, excavators. The acclaimed SR concept went on to be adopted throughout the industry.

But KOBELCO didn’t stop there. Aware of changing needs among machine users in a changing social environment, KOBELCO has taken the SR concept through a further evolution with value-added features. KOBELCO’s unique design for engine cooling, the iNDr system, cuts noise to extremely low levels.

The newest KOBELCO approach to low fuel consumption, NEXT-3E, now also applies to short rear swing models, to maximize work volumes while saving on fuel. And the new ECO-mode in the SK75SR creates even greater savings on fuel to turn SR models into exceptional high-earning machines. KOBELCO continues to lead the field in short rear swing excavators.

Features

  • Low Noise: iNDr - KOBELCO’s exclusive iNDr Cooling System delivers amazingly quiet operation
  • More Work with Less Fuel! - The new hydraulic system and an additional ECO-mode have cut fuel consumption by up to 21%.
  • Efficient Performance!
  • Fast, Accurate and Low-Cost Maintenance - comfortable "On the Ground" maintenance
  • A Working Environment that Helps Operator Concentrate on the Job - big cab, excellent visibility, wide-access cab aids smooth entry and exit,comfortable operating environment, ROPS cab,

Specifications

Model Name SK75SR
Machine Type SSK75SR-3E
Operating Weight lbs {kg} 17,100 {7,760}
Bucket Bucket capacity
SAE heaped cu.yd.{m3}
0.14 {0.11} 0.18 {0.14} 0.23 {0.18} 0.29 {0.22} 0.37 {0.28} 0.46 {0.35}
Bucket capacity
SAE Struck cu.yd.{m3}
0.11 {0.09} 0.16 {0.12} 0.18 {0.14} 0.24 {0.18} 0.37 {0.21} 0.34 {0.26}
Opening width
With side cutter inches {mm}
- 19 {480} 22 {1,570} 26 {650} 30 {750} 33 {850}
Opening width
Without side cutter inches {mm}
16 {400} 16 {410} 19 {480} 23 {580} 27 {680} 31 {780}
Bucket weight lb {kg} 330 {150} 350 {160} 370 {170} 420 {190} 460 {210} 460 {210}
Engine Model ISUZU AU-4LE2X
Type Direct injection, water-cooled, 4-cycle diesel engine. With turbocharger, intercooler (Complies with EU (NRMM) Stage IIIB, US EPA Tier IV Final, and act on regulation, etc. of emission from non-road special motor vehicles (Japan))
Rated power output 256.3hp {42kW} /2,000rpm {-1} (ISO 14396)
55.0hp {41kW} /2,000rpm {min-1} (ISO 9249)
Fuel tank 31.7 U.S.gal {120 L}
Swing System Swing Speed 1.5 rpm {min-1}
Travel System Travel motors 2 x axial-piston, two-step motors
Travel shoes 39 each side
Travel speed 3.3 / 1.6 mph {5.3 / 2.6 km/h}
Drawbar pulling force 17,300 lbs {76.8 kN} (SAE J 1309)
Gradeability 70% {35°}
Hydraulic System Pump Type Two variable displacement pumps
Max.discharge flow 2 x 17.5 U.S.gph {2 x 66 L/min} ,
1 x 4.8 U.S.gph {1 x 46 L/min}
Hydraulic oil tank 9.5 U.S.gal {36 L} tank oil level
22.5 U.S.gal {85 L} hydraulic system

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