Compare Excavators. Choose Smarter.
CAT 320D VS Sona SDT-10 Comparison
CAT 320D
₹ 22 L - 23.99 L
VS
Sona SDT-10
₹ 6 L - 10 L
CAT 320D
₹22L
Sona SDT-10
₹6L
Compare excavators helps you make an informed purchase decision.
CAT 320D
From ₹ 22 Lakh
Sona SDT-10
From ₹ 6 Lakh
Engine
Model
CAT 3066TA
Sona SDT-10 Diesel
Model
CAT 3066TA
Sona SDT-10 Diesel
Gross Power
112.8 kw
9.5 kw
Gross Power
112.8 kw
9.5 kw
Net Power
104 kw
8.5 kw
Net Power
104 kw
8.5 kw
Engine Power
140 HP
12 HP
Engine Power
140 HP
12 HP
Engine Displacement
6370 cc
900 cc
Engine Displacement
6370 cc
900 cc
Number Of Cylinders
6 Nos
3 Nos
Number Of Cylinders
6 Nos
3 Nos
Rated RPM
1800 rpm
2200 rpm
Rated RPM
1800 rpm
2200 rpm
Emission Standard
BS IV
BS II
Emission Standard
BS IV
BS II
Max Torque
650 Nm
50 Nm
Max Torque
650 Nm
50 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
20330 kg
750 kg
Operating Weight
20330 kg
750 kg
Machine Weight
20300 kg
750 kg
Machine Weight
20300 kg
750 kg
Counter Weight
4200 kg
100 kg
Counter Weight
4200 kg
100 kg
Ground Pressure
55 kg
35 kg
Ground Pressure
55 kg
35 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston
Gear/Axial Piston
Main Pump Type
Variable displacement axial piston
Gear/Axial Piston
Maximum Hydraulic Flow
205 L/min
18 L/min
Maximum Hydraulic Flow
205 L/min
18 L/min
Maximum System Pressure
350 bar
200 bar
Maximum System Pressure
350 bar
200 bar
Hydraulic Oil Capacity
260 litres
10 litres
Hydraulic Oil Capacity
260 litres
10 litres
Auxiliary Hydraulic Flow
60 L/min
18 L/min
Auxiliary Hydraulic Flow
60 L/min
18 L/min
Working Range
Max Digging Depth
6720 mm
1650 mm
Max Digging Depth
6720 mm
1650 mm
Max Vertical Wall Digging Depth
6980 mm
1200 mm
Max Vertical Wall Digging Depth
6980 mm
1200 mm
Max Reach at Ground Level
10790 mm
2600 mm
Max Reach at Ground Level
10790 mm
2600 mm
Max Dumping Height
6940 mm
2400 mm
Max Dumping Height
6940 mm
2400 mm
Max Cutting Height
9960 mm
2600 mm
Max Cutting Height
9960 mm
2600 mm
Boom Length
5.700 m
1.500 m
Boom Length
5.700 m
1.500 m
Arm Length
2.5 mm
900 mm
Arm Length
2.5 mm
900 mm
Bucket Breakout Force
135 kN
9 kN
Bucket Breakout Force
135 kN
9 kN
Arm Tear-out Force
118 kN
7 kN
Arm Tear-out Force
118 kN
7 kN
Capacities
Fuel Tank Capacity
410 litres
5.5 litres
Fuel Tank Capacity
410 litres
5.5 litres
Hydraulic Tank Capacity
120 litres
10 litres
Hydraulic Tank Capacity
120 litres
10 litres
Cooling System Capacity
25 litres
5 litres
Cooling System Capacity
25 litres
5 litres
Engine Oil Capacity
30 litres
3.5 litres
Engine Oil Capacity
30 litres
3.5 litres
Swing Drive Oil Capacity
8 litres
1 litres
Swing Drive Oil Capacity
8 litres
1 litres
Final Drive Gear Oil Capacity
6 litres
1 litres
Final Drive Gear Oil Capacity
6 litres
1 litres
Under Carriage
Track Shoe Width
600 mm
180 mm
Track Shoe Width
600 mm
180 mm
Track Gauge
2200 mm
900 mm
Track Gauge
2200 mm
900 mm
Track Length on Ground
3265 mm
1200 mm
Track Length on Ground
3265 mm
1200 mm
Ground Clearance
450 mm
380 mm
Ground Clearance
450 mm
380 mm
Tail Swing Radius
2750 mm
900 mm
Tail Swing Radius
2750 mm
900 mm
Undercarriage Type
Crawler – Steel Tracks
Tracked crawler undercarriage
Undercarriage Type
Crawler – Steel Tracks
Tracked crawler undercarriage
Steering & Brakes
Overall Length
9450 mm
2500 mm
Overall Length
9450 mm
2500 mm
Overall Width
2800 mm
1100 mm
Overall Width
2800 mm
1100 mm
Overall Height
3050 mm
2200 mm
Overall Height
3050 mm
2200 mm
Cab Height
2950 mm
2000 mm
Cab Height
2950 mm
2000 mm
Boom Height
3.050 m
1.500 m
Boom Height
3.050 m
1.500 m
Track Width
600 mm
180 mm
Track Width
600 mm
180 mm
Performances
Travel Speed
5.6 km/h
4 km/h
Travel Speed
5.6 km/h
4 km/h
Swing Speed
10.5 rpm
10 rpm
Swing Speed
10.5 rpm
10 rpm
Gradeability
30 %
35 %
Gradeability
30 %
35 %
Drawbar Pull
205 kN
10 kN
Drawbar Pull
205 kN
10 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.02 Cu.m
Bucket Capacity
1 Cu.m
0.02 Cu.m
Bucket Options
0.57–1.56
0.03 - 0.04
Bucket Options
0.57–1.56
0.03 - 0.04
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Auger, breaker (light-duty), small tilt bucket
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Auger, breaker (light-duty), small tilt bucket
Cabin And Controls
Cabin AC
Yes
No
Cabin AC
Yes
No
Display Type
LCD monitor on newer versions
Basic analog
Display Type
LCD monitor on newer versions
Basic analog
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Air suspension available
Mechanical / Vinyl
Seat Type
Air suspension available
Mechanical / Vinyl
Noise Level
75 dB(A)
85 dB(A)
Noise Level
75 dB(A)
85 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
24 V
12 V
Battery
24 V
12 V
Alternator Output
70 A
45 A
Alternator Output
70 A
45 A
Lighting Type
Halogen
Halogen
Lighting Type
Halogen
Halogen
Additional Features
Auto Idle
Yes
No
Auto Idle
Yes
No
Eco Mode
Yes
No
Eco Mode
Yes
No
Telematics
Yes
No
Telematics
Yes
No
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.
Sona SDT-10
Pros
- Ultra‑compact & lightweight — easy to transport and operate in tight spaces (750 kg class).
- Lower initial cost and operating cost vs larger excavators.
- Good digging depth (~1.65 m) for its class.
