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CAT 320D3 VS Kobelco SK30SR Comparison
CAT 320D3
₹ 25 L - 28 L
VS
Kobelco SK30SR
₹ 29 L - 35 L
CAT 320D3
₹25L
Kobelco SK30SR
₹29L
Compare excavators helps you make an informed purchase decision.
CAT 320D3
From ₹ 25 Lakh
Kobelco SK30SR
From ₹ 29 Lakh
Engine
Model
Cat ALUW06DTI
YANMAR 3TNV82A‑B
Model
Cat ALUW06DTI
YANMAR 3TNV82A‑B
Gross Power
100 kw
18.1 kw
Gross Power
100 kw
18.1 kw
Net Power
85 kw
18.1 kw
Net Power
85 kw
18.1 kw
Engine Power
134 HP
24 HP
Engine Power
134 HP
24 HP
Engine Displacement
5760 cc
1331 cc
Engine Displacement
5760 cc
1331 cc
Number Of Cylinders
6 Nos
3 Nos
Number Of Cylinders
6 Nos
3 Nos
Rated RPM
1700 rpm
2400 rpm
Rated RPM
1700 rpm
2400 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
620 Nm
79.4 Nm
Max Torque
620 Nm
79.4 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
45860 kg
3570 kg
Operating Weight
45860 kg
3570 kg
Machine Weight
42478 kg
3410 kg
Machine Weight
42478 kg
3410 kg
Counter Weight
10211 kg
1209 kg
Counter Weight
10211 kg
1209 kg
Ground Pressure
44 kg
29.9 kg
Ground Pressure
44 kg
29.9 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston pumps
Two variable displacement pumps + one gear pump
Main Pump Type
Variable displacement axial piston pumps
Two variable displacement pumps + one gear pump
Maximum Hydraulic Flow
420 L/min
96 L/min
Maximum Hydraulic Flow
420 L/min
96 L/min
Maximum System Pressure
350 bar
230 bar
Maximum System Pressure
350 bar
230 bar
Hydraulic Oil Capacity
234 litres
44.8 litres
Hydraulic Oil Capacity
234 litres
44.8 litres
Auxiliary Hydraulic Flow
150 L/min
23 L/min
Auxiliary Hydraulic Flow
150 L/min
23 L/min
Working Range
Max Digging Depth
6300 mm
2800 mm
Max Digging Depth
6300 mm
2800 mm
Max Vertical Wall Digging Depth
5720 mm
2360 mm
Max Vertical Wall Digging Depth
5720 mm
2360 mm
Max Reach at Ground Level
9470 mm
5040 mm
Max Reach at Ground Level
9470 mm
5040 mm
Max Dumping Height
6710 mm
3420 mm
Max Dumping Height
6710 mm
3420 mm
Max Cutting Height
9250 mm
4800 mm
Max Cutting Height
9250 mm
4800 mm
Boom Length
5.700 m
2.820 m
Boom Length
5.700 m
2.820 m
Arm Length
2500 mm
1320 mm
Arm Length
2500 mm
1320 mm
Bucket Breakout Force
143 kN
27.7 kN
Bucket Breakout Force
143 kN
27.7 kN
Arm Tear-out Force
99 kN
19.2 kN
Arm Tear-out Force
99 kN
19.2 kN
Capacities
Fuel Tank Capacity
410 litres
42 litres
Fuel Tank Capacity
410 litres
42 litres
Hydraulic Tank Capacity
115 litres
20.4 litres
Hydraulic Tank Capacity
115 litres
20.4 litres
Cooling System Capacity
40 litres
35 litres
Cooling System Capacity
40 litres
35 litres
Engine Oil Capacity
25 litres
6 litres
Engine Oil Capacity
25 litres
6 litres
Swing Drive Oil Capacity
5 litres
7 litres
Swing Drive Oil Capacity
5 litres
7 litres
Final Drive Gear Oil Capacity
16 litres
10 litres
Final Drive Gear Oil Capacity
16 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
4,080 mm
1700 mm
Track Length on Ground
4,080 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
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Rubber track undercarriage (standard), two‑speed travel with axial‑piston travel motors
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Rubber track undercarriage (standard), two‑speed travel with axial‑piston travel motors
Steering & Brakes
Overall Length
9530 mm
4730 mm
Overall Length
9530 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
3050 mm
2510 mm
Cab Height
3050 mm
2510 mm
Boom Height
3.200 m
2.510 m
Boom Height
3.200 m
2.510 m
Track Width
600 mm
300 mm
Track Width
600 mm
300 mm
Performances
Travel Speed
5.5 km/h
4.4 km/h
Travel Speed
5.5 km/h
4.4 km/h
Swing Speed
11.5 rpm
8.4 rpm
Swing Speed
11.5 rpm
8.4 rpm
Gradeability
70 %
58 %
Gradeability
70 %
58 %
Drawbar Pull
205 kN
38.4 kN
Drawbar Pull
205 kN
38.4 kN
Bucket And Attachments
Bucket Capacity
0.92 Cu.m
0.12 Cu.m
Bucket Capacity
0.92 Cu.m
0.12 Cu.m
Bucket Options
0.9 – 1.2
0.11 – 0.12
Bucket Options
0.9 – 1.2
0.11 – 0.12
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Rock breaker, tilt bucket, rippers
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Rock breaker, tilt bucket, rippers
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
LCD Monitor
Color LCD
Display Type
LCD Monitor
Color LCD
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Adjustable suspension seat
Adjustable suspension
Seat Type
Adjustable suspension seat
Adjustable suspension
Noise Level
72 dB(A)
78 dB(A)
Noise Level
72 dB(A)
78 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2x12 V
12 V
Battery
2x12 V
12 V
Alternator Output
80 A
60 A
Alternator Output
80 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 320D3
Pros
- Strong engine performance for a 20-ton class excavator: 134 HP gross (100 kW), ~114 HP net. Great for heavy digging and lifting tasks.
- Typically well-insulated, ergonomically arranged operator cab with adjustable suspension seat, good visibility, and modern controls.
- Selectable power modes (Power, Smart, Eco) improve fuel efficiency depending on task.
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.
