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CAT 321 VS Volvo EC350D Comparison
CAT 321
₹ 54 L - 55 L
VS
Volvo EC350D
₹ 33 L - 46.99 L
CAT 321
₹54L
Volvo EC350D
₹33L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
Volvo EC350D
From ₹ 33 Lakh
Engine
Model
Cat® C3.6
Volvo D8F / D8K six‑cylinder diesel engine
Model
Cat® C3.6
Volvo D8F / D8K six‑cylinder diesel engine
Gross Power
100 kw
210 kw
Gross Power
100 kw
210 kw
Net Power
129 kw
197 kw
Net Power
129 kw
197 kw
Engine Power
136 HP
286 HP
Engine Power
136 HP
286 HP
Engine Displacement
3600 cc
7800 cc
Engine Displacement
3600 cc
7800 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2000 rpm
1800 rpm
Rated RPM
2000 rpm
1800 rpm
Emission Standard
BS IV
BS IV
Emission Standard
BS IV
BS IV
Max Torque
500 Nm
1340 Nm
Max Torque
500 Nm
1340 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
38700 kg
Operating Weight
19300 kg
38700 kg
Machine Weight
19300 kg
38700 kg
Machine Weight
19300 kg
38700 kg
Counter Weight
3650 kg
12000 kg
Counter Weight
3650 kg
12000 kg
Ground Pressure
60 kg
72 kg
Ground Pressure
60 kg
72 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
576 L/min
Maximum Hydraulic Flow
315 L/min
576 L/min
Maximum System Pressure
350 bar
333 bar
Maximum System Pressure
350 bar
333 bar
Hydraulic Oil Capacity
218 litres
465 litres
Hydraulic Oil Capacity
218 litres
465 litres
Auxiliary Hydraulic Flow
120 L/min
120 L/min
Auxiliary Hydraulic Flow
120 L/min
120 L/min
Working Range
Max Digging Depth
5970 mm
7480 mm
Max Digging Depth
5970 mm
7480 mm
Max Vertical Wall Digging Depth
5360 mm
10132 mm
Max Vertical Wall Digging Depth
5360 mm
10132 mm
Max Reach at Ground Level
9150 mm
11100 mm
Max Reach at Ground Level
9150 mm
11100 mm
Max Dumping Height
6250 mm
7000 mm
Max Dumping Height
6250 mm
7000 mm
Max Cutting Height
9120 mm
9800 mm
Max Cutting Height
9120 mm
9800 mm
Boom Length
5.700 m
6.450 m
Boom Length
5.700 m
6.450 m
Arm Length
2250 mm
3200 mm
Arm Length
2250 mm
3200 mm
Bucket Breakout Force
135 kN
177 kN
Bucket Breakout Force
135 kN
177 kN
Arm Tear-out Force
119 kN
156 kN
Arm Tear-out Force
119 kN
156 kN
Capacities
Fuel Tank Capacity
370 litres
580 litres
Fuel Tank Capacity
370 litres
580 litres
Hydraulic Tank Capacity
218 litres
215 litres
Hydraulic Tank Capacity
218 litres
215 litres
Cooling System Capacity
25 litres
41 litres
Cooling System Capacity
25 litres
41 litres
Engine Oil Capacity
11 litres
32 litres
Engine Oil Capacity
11 litres
32 litres
Swing Drive Oil Capacity
6 litres
6.1 litres
Swing Drive Oil Capacity
6 litres
6.1 litres
Final Drive Gear Oil Capacity
6 litres
12 litres
Final Drive Gear Oil Capacity
6 litres
12 litres
Under Carriage
Track Shoe Width
800 mm
600 mm
Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
2 590 mm
Track Gauge
2380 mm
2 590 mm
Track Length on Ground
3650 mm
4 630 mm
Track Length on Ground
3650 mm
4 630 mm
Ground Clearance
450 mm
500 mm
Ground Clearance
450 mm
500 mm
Tail Swing Radius
1676 mm
3560 mm
Tail Swing Radius
1676 mm
3560 mm
Undercarriage Type
Crawler — steel tracks
Heavy‑duty crawler undercarriage with sealed & lubricated tracks and grease‑type track tensioning
Undercarriage Type
Crawler — steel tracks
Heavy‑duty crawler undercarriage with sealed & lubricated tracks and grease‑type track tensioning
Steering & Brakes
Overall Length
9570 mm
11020 mm
Overall Length
9570 mm
11020 mm
Overall Width
2800 mm
3190 mm
Overall Width
2800 mm
3190 mm
Overall Height
3250 mm
3490 mm
Overall Height
3250 mm
3490 mm
Cab Height
3250 mm
3490 mm
Cab Height
3250 mm
3490 mm
Boom Height
3.300 m
3.421 m
Boom Height
3.300 m
3.421 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
10 km/h
5.1 km/h
Travel Speed
10 km/h
5.1 km/h
Swing Speed
10 rpm
10.3 rpm
Swing Speed
10 rpm
10.3 rpm
Gradeability
27 %
70 %
Gradeability
27 %
70 %
Drawbar Pull
150 kN
261 kN
Drawbar Pull
150 kN
261 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
2.53 Cu.m
Bucket Capacity
1 Cu.m
2.53 Cu.m
Bucket Options
0.8
1 - 2.53
Bucket Options
0.8
1 - 2.53
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Standard excavator attachments
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Standard excavator attachments
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
Digital I‑ECU monitor
Display Type
8 LCD Touch Screen
Digital I‑ECU monitor
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Adjustable ergonomic
Seat Type
Suspension Seat
Adjustable ergonomic
Noise Level
70 dB(A)
78 dB(A)
Noise Level
70 dB(A)
78 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
2X12 , 200 Ah V
Battery
2X12 V
2X12 , 200 Ah V
Alternator Output
100 A
110 A
Alternator Output
100 A
110 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
Volvo EC350D
Pros
- Strong Production Performance: Volvo’s electro‑hydraulic system and ECO mode provide good cycle times, fuel efficiency, and dig performance.
- Durability & Support: Volvo machines are known for solid build and global service network.
- Good Reach & Depth: ~10.17 m gain height and ~7.48 m depth suit mainstream heavy excavation tasks.
