Skip to content
Press ENTER to search or ESC to close this overlay.
SK28SR-7
SK28SR-7
SK28SR-7
SK28SR-7
SK28SR-7
SK28SR-7
SK28SR-7

SK28SR-7

Mini Excavators

The KOBELCO SK28SR-7 Mini Excavator is built for efficiency and versatility in confined spaces. Compact yet powerful, it delivers impressive digging performance, smooth control, and exceptional operator comfort—making it the perfect choice for urban, residential, and utility projects.

Industry Construction Landscaping
Operating weight 0 - 6 t
Power 18.9 kW / 2,400 min-1
SPECIFICATIONS

Key specifications for SK28SR-7

Description
Number Of Boom Options 1
Number Of Mono Booms 1
Number Of Dipper Options 2
Min Dipper Length 1180 mm
Max Dipper Length 1480 mm
Dipper Length 1180 mm
Operating Weight 3090 - 3250 kg
Driveline
Manufacturer Yanmar
Model 3TNV88
Aspiration Naturally Aspirated
Cooling Water
Cylinders 3
Displacement 1.642 L
Rated Speed 2400 rpm
Net Rating Standard ISO 9249
Net Output 17.9 kW
Gross Rating Standard ISO 14396
Gross Output 18.9 kW
Torque 88 Nm
Torque Rated Speed 1440 rpm
Carrier Rollers Per Side 1
Track Rollers Per Side 4
Shoe Width 300 mm
Shoe Type Rubber
Dimensions
Mono Boom 4510 mm
Without Boom 2510 - 2550 mm
Max Height 2510 - 2550 mm
Superstructure 1530 mm
Undercarriage 1550 mm
Overall Width 1550 mm
Track Length On Ground 1700 mm
Undercarriage Length 2160 mm
Tailswing Radius 775 mm
Tail Length 775 mm
Zero Tailswing No
Cab 2550 mm
Canopy 2510 mm
Counterweight Clearance 575 mm
Reference Capacity 0.07
Reference Weight 58 kg
Available Standard
Type Straight
Height 345 mm
Width 1550 mm
Raised Height 450 mm
Dig Depth 370 mm
Width Over Tracks 1550 mm
Track Gauge 1250 mm
Variable Undercarriage Available No
Digging Reach 4840 mm
Ground Level Reach 4680 mm
Dig Height 4480 mm
Dump Height 3090 mm
Vertical Wall 2270 mm
Dig Depth - 2.44m (8ft) Flat Bottom 2050 mm
Dig Depth 2590 mm
Front Slew Radius 2190 mm
Front Slew Radius - Swing Boom 1900 mm
Boom Swing - Left 60 °
Boom Swing - Right 55 °
Left Digging Offset 680 mm
Right Digging Offset 670 mm
Rating Standard ISO 10567
Reach At Ground Level 3.89 m
Capacities
Fuel Tank 42 L
Engine Oil 6.7 L
Cooling System 3.8 L
Hydraulic Tank 20.4 L
Hydraulic System 44.8 L
Performance
Ground Bearing Pressure 27.1 - 28.5 kPa
Slew Speed 8.2 rpm
Slew Torque 5.7 kNm
Travel Speed - Low 2.1 kph
Travel Speed - High 3.8 kph
Tractive Force 34.7 kN
Boost Pressure Used For Breakout Unlisted
Dipper Tearout 16.6 kN
Bucket Breakout 24.7 kN
Gradeability 30 °
Gradeability 58 %
Internal Noise - LpA 80 dB(A)
External Noise - LwA 92 dB(A)
Lift Quoted With Bucket No
Lift Quoted With Dozer-Up/Down Up
End Lift - 2.0m 1080 - 1140 kg
Side Lift - 2.0m 790 - 830 kg
End Lift - 3.0m 560 - 590 kg
Side Lift - 3.0m 430 - 450 kg
End Lift - Max 380 - 400 kg
Side Lift - Max 290 - 310 kg
Main Pumps 2
Main Pump - Total 57.6 L/min
Boom 230 bar
Dipper 230 bar
Attachment 230 bar
Weights
Mono Boom 3020 - 3180 kg
For more detailed specifications and lifting capacities, please download the brochure
Download brochure
Contact us

Looking for a KOBELCO dealer?

Go to the dealer locator