It only makes sense that the company that invented SR (short rear swing) excavators would stay ahead of the competition. The exclusive KOBELCO iNDr Cooling System reduces dust while delivering ultra-quiet operation, while NEXT-3E technology allows you to dial in the perfect balance of performance and fuel economy.


  • Engine Power - 56.3 hp (42 kW)
  • Operating Weight - 17,100 lbs (7,760 kg)

At KOBELCO, we invented short rear swing excavators, so it only makes sense we'd stay ahead of the competition with the SK75SR-3E. This model has the power, fuel economy and features you need to tackle jobs in tight spaces. In all KOBELCO SR Series machines, you'll find the exclusive iNDr Cooling System that reduces dust while delivering ultra-quiet operation, as well as NEXT-3E technology that lets you dial in the perfect balance of performance and fuel economy. Plus, premier operator comforts mean it's easier to stay focused on the task at hand.

Overall Length20' 10" (6,360 mm)
Overall Height (to top of boom)8' 6" (2,600 mm)
Overall Width8' (2,450 mm)
Ground Clearance of Rear End2' 3" (700 mm)
Ground Clearance13.8" (350 mm)
Tail Swing Radius4' 3" (1,290 mm)
Distance From Center of Swing To Rear End4' 3" (1,290 mm)
Tumbler Distance7' 3" (2,210 mm)
Overall Length of Crawler9' 3" (2,830 mm)
Track Gauge6' 1" (1,850 mm)
Shoe Width2' (600 mm)
Overall Width of Upperstructure7' 5" (2,250 mm)


Travel Speed3.3 mph (5.3 kph) / 1.6 mph (2.6 kph)
Swing Speed11.5 rpm
Swing Torque12,500 lbf/ft (17 kNm)
Drawbar Pulling Force17,300 lbf (76.8 kN)


Operating Weight17,100 lbs (7,760 kg)


ModelIsuzu 4 LE 2
Power Output 56.3 hp (42 kW)
55 hp (41 kW)
Max. Torque148 lbf (210 Nm)
Displacement133 in³ (2.179 ltr)
Fuel Tank31.7 gallons (US) (120 ltr)


Pump 2 Variable axial piston + Gear
Max. Discharge Flow17.5 gallons(US)/min (66 ltr/min)
Dozer Blade Blade Height: 18" (455 mm)
Blade Width: 8' 1" (2,470 mm)
Max. Raise Height: 14" (360 mm)
Dig Depth: 10" (250 mm)
Max. Digging Reach22' 7" (6,880 mm)
Max. Digging Reach At Ground Level22' 2" (6,760 mm)
Max. Digging Depth15' (4,580 mm)
Max. Digging Height25' 5" (7,750 mm)
Max. Dumping Clearance18' 7" (5,670 mm)
Max. Vertical Wall Digging Depth14' 3" (4,340 mm)
Min. Swing Radius6' 11" (2,110 mm)
Digging Depth For 8 Feet Flat Bottom14' 2" (4,310 mm)
Bucket Digging Force16,456 lbf (73.2 kN)
Arm Crowding Force7,900 lbf (35.2 kN)