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CAT 320D VS Kobelco SK30SR Comparison
CAT 320D
₹ 22 L - 23.99 L
VS
Kobelco SK30SR
₹ 29 L - 35 L
CAT 320D
₹22L
Kobelco SK30SR
₹29L
Compare excavators helps you make an informed purchase decision.
CAT 320D
From ₹ 22 Lakh
Kobelco SK30SR
From ₹ 29 Lakh
Engine
Model
CAT 3066TA
YANMAR 3TNV82A‑B
Model
CAT 3066TA
YANMAR 3TNV82A‑B
Gross Power
112.8 kw
18.1 kw
Gross Power
112.8 kw
18.1 kw
Net Power
104 kw
18.1 kw
Net Power
104 kw
18.1 kw
Engine Power
140 HP
24 HP
Engine Power
140 HP
24 HP
Engine Displacement
6370 cc
1331 cc
Engine Displacement
6370 cc
1331 cc
Number Of Cylinders
6 Nos
3 Nos
Number Of Cylinders
6 Nos
3 Nos
Rated RPM
1800 rpm
2400 rpm
Rated RPM
1800 rpm
2400 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
650 Nm
79.4 Nm
Max Torque
650 Nm
79.4 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
20330 kg
3570 kg
Operating Weight
20330 kg
3570 kg
Machine Weight
20300 kg
3410 kg
Machine Weight
20300 kg
3410 kg
Counter Weight
4200 kg
1209 kg
Counter Weight
4200 kg
1209 kg
Ground Pressure
55 kg
29.9 kg
Ground Pressure
55 kg
29.9 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston
Two variable displacement pumps + one gear pump
Main Pump Type
Variable displacement axial piston
Two variable displacement pumps + one gear pump
Maximum Hydraulic Flow
205 L/min
96 L/min
Maximum Hydraulic Flow
205 L/min
96 L/min
Maximum System Pressure
350 bar
230 bar
Maximum System Pressure
350 bar
230 bar
Hydraulic Oil Capacity
260 litres
44.8 litres
Hydraulic Oil Capacity
260 litres
44.8 litres
Auxiliary Hydraulic Flow
60 L/min
23 L/min
Auxiliary Hydraulic Flow
60 L/min
23 L/min
Working Range
Max Digging Depth
6720 mm
2800 mm
Max Digging Depth
6720 mm
2800 mm
Max Vertical Wall Digging Depth
6980 mm
2360 mm
Max Vertical Wall Digging Depth
6980 mm
2360 mm
Max Reach at Ground Level
10790 mm
5040 mm
Max Reach at Ground Level
10790 mm
5040 mm
Max Dumping Height
6940 mm
3420 mm
Max Dumping Height
6940 mm
3420 mm
Max Cutting Height
9960 mm
4800 mm
Max Cutting Height
9960 mm
4800 mm
Boom Length
5.700 m
2.820 m
Boom Length
5.700 m
2.820 m
Arm Length
2.5 mm
1320 mm
Arm Length
2.5 mm
1320 mm
Bucket Breakout Force
135 kN
27.7 kN
Bucket Breakout Force
135 kN
27.7 kN
Arm Tear-out Force
118 kN
19.2 kN
Arm Tear-out Force
118 kN
19.2 kN
Capacities
Fuel Tank Capacity
410 litres
42 litres
Fuel Tank Capacity
410 litres
42 litres
Hydraulic Tank Capacity
120 litres
20.4 litres
Hydraulic Tank Capacity
120 litres
20.4 litres
Cooling System Capacity
25 litres
35 litres
Cooling System Capacity
25 litres
35 litres
Engine Oil Capacity
30 litres
6 litres
Engine Oil Capacity
30 litres
6 litres
Swing Drive Oil Capacity
8 litres
7 litres
Swing Drive Oil Capacity
8 litres
7 litres
Final Drive Gear Oil Capacity
6 litres
10 litres
Final Drive Gear Oil Capacity
6 litres
10 litres
Under Carriage
Track Shoe Width
600 mm
300 mm
Track Shoe Width
600 mm
300 mm
Track Gauge
2200 mm
1250 mm
Track Gauge
2200 mm
1250 mm
Track Length on Ground
3265 mm
1700 mm
Track Length on Ground
3265 mm
1700 mm
Ground Clearance
450 mm
300 mm
Ground Clearance
450 mm
300 mm
Tail Swing Radius
2750 mm
775 mm
Tail Swing Radius
2750 mm
775 mm
Undercarriage Type
Crawler – Steel Tracks
Rubber track undercarriage (standard), two‑speed travel with axial‑piston travel motors
Undercarriage Type
Crawler – Steel Tracks
Rubber track undercarriage (standard), two‑speed travel with axial‑piston travel motors
Steering & Brakes
Overall Length
9450 mm
4730 mm
Overall Length
9450 mm
4730 mm
Overall Width
2800 mm
1550 mm
Overall Width
2800 mm
1550 mm
Overall Height
3050 mm
2510 mm
Overall Height
3050 mm
2510 mm
Cab Height
2950 mm
2510 mm
Cab Height
2950 mm
2510 mm
Boom Height
3.050 m
2.510 m
Boom Height
3.050 m
2.510 m
Track Width
600 mm
300 mm
Track Width
600 mm
300 mm
Performances
Travel Speed
5.6 km/h
4.4 km/h
Travel Speed
5.6 km/h
4.4 km/h
Swing Speed
10.5 rpm
8.4 rpm
Swing Speed
10.5 rpm
8.4 rpm
Gradeability
30 %
58 %
Gradeability
30 %
58 %
Drawbar Pull
205 kN
38.4 kN
Drawbar Pull
205 kN
38.4 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.12 Cu.m
Bucket Capacity
1 Cu.m
0.12 Cu.m
Bucket Options
0.57–1.56
0.11 – 0.12
Bucket Options
0.57–1.56
0.11 – 0.12
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Rock breaker, tilt bucket, rippers
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Rock breaker, tilt bucket, rippers
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
LCD monitor on newer versions
Color LCD
Display Type
LCD monitor on newer versions
Color LCD
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Air suspension available
Adjustable suspension
Seat Type
Air suspension available
Adjustable suspension
Noise Level
75 dB(A)
78 dB(A)
Noise Level
75 dB(A)
78 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
24 V
12 V
Battery
24 V
12 V
Alternator Output
70 A
60 A
Alternator Output
70 A
60 A
Lighting Type
Halogen
LED
Lighting Type
Halogen
LED
Additional Features
Auto Idle
Yes
Yes
Auto Idle
Yes
Yes
Eco Mode
Yes
Yes
Eco Mode
Yes
Yes
Telematics
Yes
No
Telematics
Yes
No
Diagnostic System
Yes
Yes
Diagnostic System
Yes
Yes
CAT 320D
Pros
- Proven Cat C6.4 ACERT engine with solid torque and power for mid‑size excavator tasks (earthmoving, trenching, loading).
- 5.7 m boom and ~9+ m digging height help in both shallow and medium depth work.
- Caterpillar’s dealer network is extensive — spare parts availability is usually strong globally.
Kobelco SK30SR
Pros
- Zero/short tail swing improves maneuverability in tight spaces (urban sites, trenches).
- Good reach and depth for its class (~5 m reach, ~2.8 m dig depth).
- Robust Yanmar diesel engine with reliable power for consistent performance.
