Compare Excavators. Choose Smarter.
CAT 320D3 VS Sona RDT-17 Comparison
CAT 320D3
₹ 25 L - 28 L
VS
Sona RDT-17
₹ 14 L - 16 L
CAT 320D3
₹25L
Sona RDT-17
₹14L
Compare excavators helps you make an informed purchase decision.
CAT 320D3
From ₹ 25 Lakh
Sona RDT-17
From ₹ 14 Lakh
Engine
Model
Cat ALUW06DTI
YANMAR 3‑TVN‑70
Model
Cat ALUW06DTI
YANMAR 3‑TVN‑70
Gross Power
100 kw
10 kw
Gross Power
100 kw
10 kw
Net Power
85 kw
10 kw
Net Power
85 kw
10 kw
Engine Power
134 HP
13 HP
Engine Power
134 HP
13 HP
Engine Displacement
5760 cc
850 cc
Engine Displacement
5760 cc
850 cc
Number Of Cylinders
6 Nos
3 Nos
Number Of Cylinders
6 Nos
3 Nos
Rated RPM
1700 rpm
2200 rpm
Rated RPM
1700 rpm
2200 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
620 Nm
45 Nm
Max Torque
620 Nm
45 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
45860 kg
1700 kg
Operating Weight
45860 kg
1700 kg
Machine Weight
42478 kg
1700 kg
Machine Weight
42478 kg
1700 kg
Counter Weight
10211 kg
120 kg
Counter Weight
10211 kg
120 kg
Ground Pressure
44 kg
28 kg
Ground Pressure
44 kg
28 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston pumps
Gear/axial piston pump
Main Pump Type
Variable displacement axial piston pumps
Gear/axial piston pump
Maximum Hydraulic Flow
420 L/min
40 L/min
Maximum Hydraulic Flow
420 L/min
40 L/min
Maximum System Pressure
350 bar
210 bar
Maximum System Pressure
350 bar
210 bar
Hydraulic Oil Capacity
234 litres
20 litres
Hydraulic Oil Capacity
234 litres
20 litres
Auxiliary Hydraulic Flow
150 L/min
30 L/min
Auxiliary Hydraulic Flow
150 L/min
30 L/min
Working Range
Max Digging Depth
6300 mm
1800 mm
Max Digging Depth
6300 mm
1800 mm
Max Vertical Wall Digging Depth
5720 mm
1320 mm
Max Vertical Wall Digging Depth
5720 mm
1320 mm
Max Reach at Ground Level
9470 mm
2300 mm
Max Reach at Ground Level
9470 mm
2300 mm
Max Dumping Height
6710 mm
2700 mm
Max Dumping Height
6710 mm
2700 mm
Max Cutting Height
9250 mm
2700 mm
Max Cutting Height
9250 mm
2700 mm
Boom Length
5.700 m
1.700 m
Boom Length
5.700 m
1.700 m
Arm Length
2500 mm
850 mm
Arm Length
2500 mm
850 mm
Bucket Breakout Force
143 kN
12 kN
Bucket Breakout Force
143 kN
12 kN
Arm Tear-out Force
99 kN
8 kN
Arm Tear-out Force
99 kN
8 kN
Capacities
Fuel Tank Capacity
410 litres
18 litres
Fuel Tank Capacity
410 litres
18 litres
Hydraulic Tank Capacity
115 litres
30 litres
Hydraulic Tank Capacity
115 litres
30 litres
Cooling System Capacity
40 litres
5 litres
Cooling System Capacity
40 litres
5 litres
Engine Oil Capacity
25 litres
4 litres
Engine Oil Capacity
25 litres
4 litres
Swing Drive Oil Capacity
5 litres
1 litres
Swing Drive Oil Capacity
5 litres
1 litres
Final Drive Gear Oil Capacity
16 litres
1 litres
Final Drive Gear Oil Capacity
16 litres
1 litres
Under Carriage
Track Shoe Width
600 mm
180 mm
Track Shoe Width
600 mm
180 mm
Track Gauge
2200 mm
1000 mm
Track Gauge
2200 mm
1000 mm
Track Length on Ground
4,080 mm
1250 mm
Track Length on Ground
4,080 mm
1250 mm
Ground Clearance
450 mm
400 mm
Ground Clearance
450 mm
400 mm
Tail Swing Radius
2750 mm
1200 mm
Tail Swing Radius
2750 mm
1200 mm
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Tracked crawler undercarriage (steel track shoes)
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Tracked crawler undercarriage (steel track shoes)
Steering & Brakes
Overall Length
9530 mm
2550 mm
Overall Length
9530 mm
2550 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
3050 mm
2000 mm
Cab Height
3050 mm
2000 mm
Boom Height
3.200 m
1.500 m
Boom Height
3.200 m
1.500 m
Track Width
600 mm
180 mm
Track Width
600 mm
180 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 rpm
Swing Speed
11.5 rpm
10 rpm
Gradeability
70 %
35 %
Gradeability
70 %
35 %
Drawbar Pull
205 kN
10 kN
Drawbar Pull
205 kN
10 kN
Bucket And Attachments
Bucket Capacity
0.92 Cu.m
0.03 Cu.m
Bucket Capacity
0.92 Cu.m
0.03 Cu.m
Bucket Options
0.9 – 1.2
0.03 - 0.04
Bucket Options
0.9 – 1.2
0.03 - 0.04
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Auger, breaker
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Auger, breaker
Cabin And Controls
Cabin AC
Yes
No
Cabin AC
Yes
No
Display Type
LCD Monitor
Analog / Basic
Display Type
LCD Monitor
Analog / Basic
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Adjustable suspension seat
Mechanical / Vinyl
Seat Type
Adjustable suspension seat
Mechanical / Vinyl
Noise Level
72 dB(A)
90 dB(A)
Noise Level
72 dB(A)
90 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2x12 V
12 V
Battery
2x12 V
12 V
Alternator Output
80 A
45 A
Alternator Output
80 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 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.
Sona RDT-17
Pros
- At ~1.7 t operating weight, easy to transport and use in tight areas.
- Reliable engine brand commonly used in mini excavators.
- 1.8 m digging depth and ~2.7 m height are reasonable for 1.7 t machines
