Compare Excavators. Choose Smarter.
CAT 320D3 VS CAT 305.5E Comparison
CAT 320D3
₹ 25 L - 28 L
VS
CAT 305.5E
₹ 29 L - 31 L
CAT 320D3
₹25L
CAT 305.5E
₹29L
Compare excavators helps you make an informed purchase decision.
CAT 320D3
From ₹ 25 Lakh
CAT 305.5E
From ₹ 29 Lakh
Engine
Model
Cat ALUW06DTI
Cat C2.4 DI
Model
Cat ALUW06DTI
Cat C2.4 DI
Gross Power
100 kw
34.1 kw
Gross Power
100 kw
34.1 kw
Net Power
85 kw
32.9 kw
Net Power
85 kw
32.9 kw
Engine Power
134 HP
45.7 HP
Engine Power
134 HP
45.7 HP
Engine Displacement
5760 cc
2400 cc
Engine Displacement
5760 cc
2400 cc
Number Of Cylinders
6 Nos
4 Nos
Number Of Cylinders
6 Nos
4 Nos
Rated RPM
1700 rpm
2400 rpm
Rated RPM
1700 rpm
2400 rpm
Emission Standard
BS IV
Stage III
Emission Standard
BS IV
Stage III
Max Torque
620 Nm
800 Nm
Max Torque
620 Nm
800 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
45860 kg
5400 kg
Operating Weight
45860 kg
5400 kg
Machine Weight
42478 kg
5,423 kg
Machine Weight
42478 kg
5,423 kg
Counter Weight
10211 kg
5000 kg
Counter Weight
10211 kg
5000 kg
Ground Pressure
44 kg
31.0 kg
Ground Pressure
44 kg
31.0 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston pumps
Load sensing hydraulics with variable displacement piston pump
Main Pump Type
Variable displacement axial piston pumps
Load sensing hydraulics with variable displacement piston pump
Maximum Hydraulic Flow
420 L/min
140 L/min
Maximum Hydraulic Flow
420 L/min
140 L/min
Maximum System Pressure
350 bar
250 bar
Maximum System Pressure
350 bar
250 bar
Hydraulic Oil Capacity
234 litres
85 litres
Hydraulic Oil Capacity
234 litres
85 litres
Auxiliary Hydraulic Flow
150 L/min
180 L/min
Auxiliary Hydraulic Flow
150 L/min
180 L/min
Working Range
Max Digging Depth
6300 mm
137 mm
Max Digging Depth
6300 mm
137 mm
Max Vertical Wall Digging Depth
5720 mm
2,210 mm
Max Vertical Wall Digging Depth
5720 mm
2,210 mm
Max Reach at Ground Level
9470 mm
5830 mm
Max Reach at Ground Level
9470 mm
5830 mm
Max Dumping Height
6710 mm
3,835 mm
Max Dumping Height
6710 mm
3,835 mm
Max Cutting Height
9250 mm
5460 mm
Max Cutting Height
9250 mm
5460 mm
Boom Length
5.700 m
3.200 m
Boom Length
5.700 m
3.200 m
Arm Length
2500 mm
1500 mm
Arm Length
2500 mm
1500 mm
Bucket Breakout Force
143 kN
35 kN
Bucket Breakout Force
143 kN
35 kN
Arm Tear-out Force
99 kN
27 kN
Arm Tear-out Force
99 kN
27 kN
Capacities
Fuel Tank Capacity
410 litres
78 litres
Fuel Tank Capacity
410 litres
78 litres
Hydraulic Tank Capacity
115 litres
58 litres
Hydraulic Tank Capacity
115 litres
58 litres
Cooling System Capacity
40 litres
9.8 litres
Cooling System Capacity
40 litres
9.8 litres
Engine Oil Capacity
25 litres
9.5 litres
Engine Oil Capacity
25 litres
9.5 litres
Swing Drive Oil Capacity
5 litres
8 litres
Swing Drive Oil Capacity
5 litres
8 litres
Final Drive Gear Oil Capacity
16 litres
7 litres
Final Drive Gear Oil Capacity
16 litres
7 litres
Under Carriage
Track Shoe Width
600 mm
400 mm
Track Shoe Width
600 mm
400 mm
Track Gauge
2200 mm
1550 mm
Track Gauge
2200 mm
1550 mm
Track Length on Ground
4,080 mm
2440 mm
Track Length on Ground
4,080 mm
2440 mm
Ground Clearance
450 mm
628 mm
Ground Clearance
450 mm
628 mm
Tail Swing Radius
2750 mm
1580 mm
Tail Swing Radius
2750 mm
1580 mm
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Tracked undercarriage with rubber tracks (standard on this mini excavator)
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Tracked undercarriage with rubber tracks (standard on this mini excavator)
Steering & Brakes
Overall Length
9530 mm
5,765 mm
Overall Length
9530 mm
5,765 mm
Overall Width
2800 mm
1950 mm
Overall Width
2800 mm
1950 mm
Overall Height
3050 mm
2,540 mm
Overall Height
3050 mm
2,540 mm
Cab Height
3050 mm
2,540 mm
Cab Height
3050 mm
2,540 mm
Boom Height
3.200 m
3 m
Boom Height
3.200 m
3 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
5.5 km/h
4 km/h
Travel Speed
5.5 km/h
4 km/h
Swing Speed
11.5 rpm
10.5 rpm
Swing Speed
11.5 rpm
10.5 rpm
Gradeability
70 %
25 %
Gradeability
70 %
25 %
Drawbar Pull
205 kN
40 kN
Drawbar Pull
205 kN
40 kN
Bucket And Attachments
Bucket Capacity
0.92 Cu.m
0.06 Cu.m
Bucket Capacity
0.92 Cu.m
0.06 Cu.m
Bucket Options
0.9 – 1.2
0.22
Bucket Options
0.9 – 1.2
0.22
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Standard mini‑excavator attachments (hydraulic hammer, auger, etc.)
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Standard mini‑excavator attachments (hydraulic hammer, auger, etc.)
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/comfort seat
Seat Type
Adjustable suspension seat
Suspension/comfort seat
Noise Level
72 dB(A)
73 dB(A)
Noise Level
72 dB(A)
73 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2x12 V
12 V
Battery
2x12 V
12 V
Alternator Output
80 A
80 A
Alternator Output
80 A
80 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.
CAT 305.5E
Pros
- Compact & Maneuverable
- Strong Performance for Size
- Fuel Efficient
