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CAT 320D VS Komatsu PC71 Comparison
CAT 320D
₹ 22 L - 23.99 L
VS
Komatsu PC71
₹ 24 L - 26 L
CAT 320D
₹22L
Komatsu PC71
₹24L
Compare excavators helps you make an informed purchase decision.
CAT 320D
From ₹ 22 Lakh
Komatsu PC71
From ₹ 24 Lakh
Engine
Model
CAT 3066TA
KOEL 4R-1040 diesel engine
Model
CAT 3066TA
KOEL 4R-1040 diesel engine
Gross Power
112.8 kw
44 kw
Gross Power
112.8 kw
44 kw
Net Power
104 kw
44 kw
Net Power
104 kw
44 kw
Engine Power
140 HP
60 HP
Engine Power
140 HP
60 HP
Engine Displacement
6370 cc
4160 cc
Engine Displacement
6370 cc
4160 cc
Number Of Cylinders
6 Nos
4 Nos
Number Of Cylinders
6 Nos
4 Nos
Rated RPM
1800 rpm
1900 rpm
Rated RPM
1800 rpm
1900 rpm
Emission Standard
BS IV
Stage II
Emission Standard
BS IV
Stage II
Max Torque
650 Nm
763 Nm
Max Torque
650 Nm
763 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
20330 kg
7050 kg
Operating Weight
20330 kg
7050 kg
Machine Weight
20300 kg
7050 kg
Machine Weight
20300 kg
7050 kg
Counter Weight
4200 kg
1200 kg
Counter Weight
4200 kg
1200 kg
Ground Pressure
55 kg
33 kg
Ground Pressure
55 kg
33 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston
Variable-displacement piston pump
Main Pump Type
Variable displacement axial piston
Variable-displacement piston pump
Maximum Hydraulic Flow
205 L/min
155 L/min
Maximum Hydraulic Flow
205 L/min
155 L/min
Maximum System Pressure
350 bar
245 bar
Maximum System Pressure
350 bar
245 bar
Hydraulic Oil Capacity
260 litres
57 litres
Hydraulic Oil Capacity
260 litres
57 litres
Auxiliary Hydraulic Flow
60 L/min
45 L/min
Auxiliary Hydraulic Flow
60 L/min
45 L/min
Working Range
Max Digging Depth
6720 mm
4100 mm
Max Digging Depth
6720 mm
4100 mm
Max Vertical Wall Digging Depth
6980 mm
3135 mm
Max Vertical Wall Digging Depth
6980 mm
3135 mm
Max Reach at Ground Level
10790 mm
6220 mm
Max Reach at Ground Level
10790 mm
6220 mm
Max Dumping Height
6940 mm
5015 mm
Max Dumping Height
6940 mm
5015 mm
Max Cutting Height
9960 mm
7150 mm
Max Cutting Height
9960 mm
7150 mm
Boom Length
5.700 m
3.7 m
Boom Length
5.700 m
3.7 m
Arm Length
2.5 mm
1650 mm
Arm Length
2.5 mm
1650 mm
Bucket Breakout Force
135 kN
47 kN
Bucket Breakout Force
135 kN
47 kN
Arm Tear-out Force
118 kN
35 kN
Arm Tear-out Force
118 kN
35 kN
Capacities
Fuel Tank Capacity
410 litres
130 litres
Fuel Tank Capacity
410 litres
130 litres
Hydraulic Tank Capacity
120 litres
57 litres
Hydraulic Tank Capacity
120 litres
57 litres
Cooling System Capacity
25 litres
17 litres
Cooling System Capacity
25 litres
17 litres
Engine Oil Capacity
30 litres
9 litres
Engine Oil Capacity
30 litres
9 litres
Swing Drive Oil Capacity
8 litres
1.5 litres
Swing Drive Oil Capacity
8 litres
1.5 litres
Final Drive Gear Oil Capacity
6 litres
3 litres
Final Drive Gear Oil Capacity
6 litres
3 litres
Under Carriage
Track Shoe Width
600 mm
450 mm
Track Shoe Width
600 mm
450 mm
Track Gauge
2200 mm
1700 mm
Track Gauge
2200 mm
1700 mm
Track Length on Ground
3265 mm
2130 mm
Track Length on Ground
3265 mm
2130 mm
Ground Clearance
450 mm
350 mm
Ground Clearance
450 mm
350 mm
Tail Swing Radius
2750 mm
1750 mm
Tail Swing Radius
2750 mm
1750 mm
Undercarriage Type
Crawler – Steel Tracks
Steel crawler undercarriage with grease-adjusted tension
Undercarriage Type
Crawler – Steel Tracks
Steel crawler undercarriage with grease-adjusted tension
Steering & Brakes
Overall Length
9450 mm
6080 mm
Overall Length
9450 mm
6080 mm
Overall Width
2800 mm
2225 mm
Overall Width
2800 mm
2225 mm
Overall Height
3050 mm
2590 mm
Overall Height
3050 mm
2590 mm
Cab Height
2950 mm
2590 mm
Cab Height
2950 mm
2590 mm
Boom Height
3.050 m
4.5 m
Boom Height
3.050 m
4.5 m
Track Width
600 mm
450 mm
Track Width
600 mm
450 mm
Performances
Travel Speed
5.6 km/h
2.3 km/h
Travel Speed
5.6 km/h
2.3 km/h
Swing Speed
10.5 rpm
12 rpm
Swing Speed
10.5 rpm
12 rpm
Gradeability
30 %
35 %
Gradeability
30 %
35 %
Drawbar Pull
205 kN
54 kN
Drawbar Pull
205 kN
54 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.3 Cu.m
Bucket Capacity
1 Cu.m
0.3 Cu.m
Bucket Options
0.57–1.56
0.09 - 0.35
Bucket Options
0.57–1.56
0.09 - 0.35
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Standard hydraulic attachments supported
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Standard hydraulic attachments supported
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
LCD monitor on newer versions
Standard operator display
Display Type
LCD monitor on newer versions
Standard operator display
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Air suspension available
Suspension seat
Seat Type
Air suspension available
Suspension seat
Noise Level
75 dB(A)
76 dB(A)
Noise Level
75 dB(A)
76 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
24 V
24 V
Battery
24 V
24 V
Alternator Output
70 A
55 A
Alternator Output
70 A
55 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
Yes
Telematics
Yes
Yes
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.
Komatsu PC71
Pros
- Compact, Efficient & Feature‑Rich
- Compact design and lighter operating weight
- Easy maintenance features
