Compare Excavators. Choose Smarter.
CAT 320D3 VS Komatsu PC71 Comparison
CAT 320D3
₹ 25 L - 28 L
VS
Komatsu PC71
₹ 24 L - 26 L
CAT 320D3
₹25L
Komatsu PC71
₹24L
Compare excavators helps you make an informed purchase decision.
CAT 320D3
From ₹ 25 Lakh
Komatsu PC71
From ₹ 24 Lakh
Engine
Model
Cat ALUW06DTI
KOEL 4R-1040 diesel engine
Model
Cat ALUW06DTI
KOEL 4R-1040 diesel engine
Gross Power
100 kw
44 kw
Gross Power
100 kw
44 kw
Net Power
85 kw
44 kw
Net Power
85 kw
44 kw
Engine Power
134 HP
60 HP
Engine Power
134 HP
60 HP
Engine Displacement
5760 cc
4160 cc
Engine Displacement
5760 cc
4160 cc
Number Of Cylinders
6 Nos
4 Nos
Number Of Cylinders
6 Nos
4 Nos
Rated RPM
1700 rpm
1900 rpm
Rated RPM
1700 rpm
1900 rpm
Emission Standard
BS IV
Stage II
Emission Standard
BS IV
Stage II
Max Torque
620 Nm
763 Nm
Max Torque
620 Nm
763 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
45860 kg
7050 kg
Operating Weight
45860 kg
7050 kg
Machine Weight
42478 kg
7050 kg
Machine Weight
42478 kg
7050 kg
Counter Weight
10211 kg
1200 kg
Counter Weight
10211 kg
1200 kg
Ground Pressure
44 kg
33 kg
Ground Pressure
44 kg
33 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston pumps
Variable-displacement piston pump
Main Pump Type
Variable displacement axial piston pumps
Variable-displacement piston pump
Maximum Hydraulic Flow
420 L/min
155 L/min
Maximum Hydraulic Flow
420 L/min
155 L/min
Maximum System Pressure
350 bar
245 bar
Maximum System Pressure
350 bar
245 bar
Hydraulic Oil Capacity
234 litres
57 litres
Hydraulic Oil Capacity
234 litres
57 litres
Auxiliary Hydraulic Flow
150 L/min
45 L/min
Auxiliary Hydraulic Flow
150 L/min
45 L/min
Working Range
Max Digging Depth
6300 mm
4100 mm
Max Digging Depth
6300 mm
4100 mm
Max Vertical Wall Digging Depth
5720 mm
3135 mm
Max Vertical Wall Digging Depth
5720 mm
3135 mm
Max Reach at Ground Level
9470 mm
6220 mm
Max Reach at Ground Level
9470 mm
6220 mm
Max Dumping Height
6710 mm
5015 mm
Max Dumping Height
6710 mm
5015 mm
Max Cutting Height
9250 mm
7150 mm
Max Cutting Height
9250 mm
7150 mm
Boom Length
5.700 m
3.7 m
Boom Length
5.700 m
3.7 m
Arm Length
2500 mm
1650 mm
Arm Length
2500 mm
1650 mm
Bucket Breakout Force
143 kN
47 kN
Bucket Breakout Force
143 kN
47 kN
Arm Tear-out Force
99 kN
35 kN
Arm Tear-out Force
99 kN
35 kN
Capacities
Fuel Tank Capacity
410 litres
130 litres
Fuel Tank Capacity
410 litres
130 litres
Hydraulic Tank Capacity
115 litres
57 litres
Hydraulic Tank Capacity
115 litres
57 litres
Cooling System Capacity
40 litres
17 litres
Cooling System Capacity
40 litres
17 litres
Engine Oil Capacity
25 litres
9 litres
Engine Oil Capacity
25 litres
9 litres
Swing Drive Oil Capacity
5 litres
1.5 litres
Swing Drive Oil Capacity
5 litres
1.5 litres
Final Drive Gear Oil Capacity
16 litres
3 litres
Final Drive Gear Oil Capacity
16 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
4,080 mm
2130 mm
Track Length on Ground
4,080 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
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Steel crawler undercarriage with grease-adjusted tension
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Steel crawler undercarriage with grease-adjusted tension
Steering & Brakes
Overall Length
9530 mm
6080 mm
Overall Length
9530 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
3050 mm
2590 mm
Cab Height
3050 mm
2590 mm
Boom Height
3.200 m
4.5 m
Boom Height
3.200 m
4.5 m
Track Width
600 mm
450 mm
Track Width
600 mm
450 mm
Performances
Travel Speed
5.5 km/h
2.3 km/h
Travel Speed
5.5 km/h
2.3 km/h
Swing Speed
11.5 rpm
12 rpm
Swing Speed
11.5 rpm
12 rpm
Gradeability
70 %
35 %
Gradeability
70 %
35 %
Drawbar Pull
205 kN
54 kN
Drawbar Pull
205 kN
54 kN
Bucket And Attachments
Bucket Capacity
0.92 Cu.m
0.3 Cu.m
Bucket Capacity
0.92 Cu.m
0.3 Cu.m
Bucket Options
0.9 – 1.2
0.09 - 0.35
Bucket Options
0.9 – 1.2
0.09 - 0.35
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Standard hydraulic attachments supported
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Standard hydraulic attachments supported
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
LCD Monitor
Standard operator display
Display Type
LCD Monitor
Standard operator display
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Adjustable suspension seat
Suspension seat
Seat Type
Adjustable suspension seat
Suspension seat
Noise Level
72 dB(A)
76 dB(A)
Noise Level
72 dB(A)
76 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2x12 V
24 V
Battery
2x12 V
24 V
Alternator Output
80 A
55 A
Alternator Output
80 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 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.
Komatsu PC71
Pros
- Compact, Efficient & Feature‑Rich
- Compact design and lighter operating weight
- Easy maintenance features
