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CAT 321 VS Kobelco SK35SR Comparison
CAT 321
₹ 54 L - 55 L
VS
Kobelco SK35SR
₹ 34 L - 36 L
CAT 321
₹54L
Kobelco SK35SR
₹34L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
Kobelco SK35SR
From ₹ 34 Lakh
Engine
Model
Cat® C3.6
Yanmar 3TNV88
Model
Cat® C3.6
Yanmar 3TNV88
Gross Power
100 kw
18.2 kw
Gross Power
100 kw
18.2 kw
Net Power
129 kw
17.5 kw
Net Power
129 kw
17.5 kw
Engine Power
136 HP
24.4 HP
Engine Power
136 HP
24.4 HP
Engine Displacement
3600 cc
1,642 cc
Engine Displacement
3600 cc
1,642 cc
Number Of Cylinders
4 Nos
3 Nos
Number Of Cylinders
4 Nos
3 Nos
Rated RPM
2000 rpm
2,200 rpm
Rated RPM
2000 rpm
2,200 rpm
Emission Standard
BS IV
Stage V
Emission Standard
BS IV
Stage V
Max Torque
500 Nm
98 Nm
Max Torque
500 Nm
98 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
3710 kg
Operating Weight
19300 kg
3710 kg
Machine Weight
19300 kg
3,550 kg
Machine Weight
19300 kg
3,550 kg
Counter Weight
3650 kg
380 kg
Counter Weight
3650 kg
380 kg
Ground Pressure
60 kg
31 kg
Ground Pressure
60 kg
31 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
2 × Variable displacement axial piston pumps
Main Pump Type
Electro‑hydraulic main control valve system
2 × Variable displacement axial piston pumps
Maximum Hydraulic Flow
315 L/min
2 × 33 L/min
Maximum Hydraulic Flow
315 L/min
2 × 33 L/min
Maximum System Pressure
350 bar
240 bar
Maximum System Pressure
350 bar
240 bar
Hydraulic Oil Capacity
218 litres
42 litres
Hydraulic Oil Capacity
218 litres
42 litres
Auxiliary Hydraulic Flow
120 L/min
65 L/min
Auxiliary Hydraulic Flow
120 L/min
65 L/min
Working Range
Max Digging Depth
5970 mm
3050 mm
Max Digging Depth
5970 mm
3050 mm
Max Vertical Wall Digging Depth
5360 mm
2,850 mm
Max Vertical Wall Digging Depth
5360 mm
2,850 mm
Max Reach at Ground Level
9150 mm
5,410 mm
Max Reach at Ground Level
9150 mm
5,410 mm
Max Dumping Height
6250 mm
3,500 mm
Max Dumping Height
6250 mm
3,500 mm
Max Cutting Height
9120 mm
4,850 mm
Max Cutting Height
9120 mm
4,850 mm
Boom Length
5.700 m
2.540 m
Boom Length
5.700 m
2.540 m
Arm Length
2250 mm
1700 mm
Arm Length
2250 mm
1700 mm
Bucket Breakout Force
135 kN
32.8 kN
Bucket Breakout Force
135 kN
32.8 kN
Arm Tear-out Force
119 kN
20.0 kN
Arm Tear-out Force
119 kN
20.0 kN
Capacities
Fuel Tank Capacity
370 litres
42 litres
Fuel Tank Capacity
370 litres
42 litres
Hydraulic Tank Capacity
218 litres
32 litres
Hydraulic Tank Capacity
218 litres
32 litres
Cooling System Capacity
25 litres
6.5 litres
Cooling System Capacity
25 litres
6.5 litres
Engine Oil Capacity
11 litres
5.5 litres
Engine Oil Capacity
11 litres
5.5 litres
Swing Drive Oil Capacity
6 litres
1.5 litres
Swing Drive Oil Capacity
6 litres
1.5 litres
Final Drive Gear Oil Capacity
6 litres
1.2 litres
Final Drive Gear Oil Capacity
6 litres
1.2 litres
Under Carriage
Track Shoe Width
800 mm
300 mm
Track Shoe Width
800 mm
300 mm
Track Gauge
2380 mm
1400 mm
Track Gauge
2380 mm
1400 mm
Track Length on Ground
3650 mm
1700 mm
Track Length on Ground
3650 mm
1700 mm
Ground Clearance
450 mm
300 mm
Ground Clearance
450 mm
300 mm
Tail Swing Radius
1676 mm
850 mm
Tail Swing Radius
1676 mm
850 mm
Undercarriage Type
Crawler — steel tracks
Rubber‑tracked mini excavator undercarriage
Undercarriage Type
Crawler — steel tracks
Rubber‑tracked mini excavator undercarriage
Steering & Brakes
Overall Length
9570 mm
4,850 mm
Overall Length
9570 mm
4,850 mm
Overall Width
2800 mm
1,740 mm
Overall Width
2800 mm
1,740 mm
Overall Height
3250 mm
2,510 mm
Overall Height
3250 mm
2,510 mm
Cab Height
3250 mm
2,510 mm
Cab Height
3250 mm
2,510 mm
Boom Height
3.300 m
2.820 m
Boom Height
3.300 m
2.820 m
Track Width
600 mm
300 mm
Track Width
600 mm
300 mm
Performances
Travel Speed
10 km/h
2.7 km/h
Travel Speed
10 km/h
2.7 km/h
Swing Speed
10 rpm
9 rpm
Swing Speed
10 rpm
9 rpm
Gradeability
27 %
58 %
Gradeability
27 %
58 %
Drawbar Pull
150 kN
32.0 kN
Drawbar Pull
150 kN
32.0 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.11 Cu.m
Bucket Capacity
1 Cu.m
0.11 Cu.m
Bucket Options
0.8
Standard digging
Bucket Options
0.8
Standard digging
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Hydraulic breaker
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Hydraulic breaker
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
Multi-function LCD monitor
Display Type
8 LCD Touch Screen
Multi-function LCD monitor
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Adjustable suspension seat
Seat Type
Suspension Seat
Adjustable suspension seat
Noise Level
70 dB(A)
75 dB(A)
Noise Level
70 dB(A)
75 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
12 V
Battery
2X12 V
12 V
Alternator Output
100 A
40 A
Alternator Output
100 A
40 A
Lighting Type
LED
LED
Lighting Type
LED
LED
Additional Features
Auto Idle
Yes
Yes
Auto Idle
Yes
Yes
Eco Mode
Yes
Yes
Eco Mode
Yes
Yes
Telematics
No
Yes
Telematics
No
Yes
Diagnostic System
Yes
Yes
Diagnostic System
Yes
Yes
CAT 321
Pros
- 136 HP Cat C3.6 engine delivers strong digging performance.
- An advanced electrohydraulic system improves cycle time.
- Eco Mode and Intelligent ECM help reduce fuel consumption
Kobelco SK35SR
Pros
- Good gradeability
- Decent digging force and reach
- Energy‑efficient operation
