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CAT 320D3 VS HYUNDAI R30Z-9AK Comparison
CAT 320D3
₹ 25 L - 28 L
VS
HYUNDAI R30Z-9AK
₹ 28 L - 35 L
CAT 320D3
₹25L
HYUNDAI R30Z-9AK
₹28L
Compare excavators helps you make an informed purchase decision.
CAT 320D3
From ₹ 25 Lakh
HYUNDAI R30Z-9AK
From ₹ 28 Lakh
Engine
Model
Cat ALUW06DTI
Kubota D1305
Model
Cat ALUW06DTI
Kubota D1305
Gross Power
100 kw
17.3 kw
Gross Power
100 kw
17.3 kw
Net Power
85 kw
16.5 kw
Net Power
85 kw
16.5 kw
Engine Power
134 HP
23.2 HP
Engine Power
134 HP
23.2 HP
Engine Displacement
5760 cc
1261 cc
Engine Displacement
5760 cc
1261 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 V
Emission Standard
BS IV
BS V
Max Torque
620 Nm
92 Nm
Max Torque
620 Nm
92 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
45860 kg
2895 kg
Operating Weight
45860 kg
2895 kg
Machine Weight
42478 kg
2800 kg
Machine Weight
42478 kg
2800 kg
Counter Weight
10211 kg
430 kg
Counter Weight
10211 kg
430 kg
Ground Pressure
44 kg
32 kg
Ground Pressure
44 kg
32 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston pumps
Variable displacement axial piston pump
Main Pump Type
Variable displacement axial piston pumps
Variable displacement axial piston pump
Maximum Hydraulic Flow
420 L/min
57.6 L/min
Maximum Hydraulic Flow
420 L/min
57.6 L/min
Maximum System Pressure
350 bar
230 bar
Maximum System Pressure
350 bar
230 bar
Hydraulic Oil Capacity
234 litres
48 litres
Hydraulic Oil Capacity
234 litres
48 litres
Auxiliary Hydraulic Flow
150 L/min
40 L/min
Auxiliary Hydraulic Flow
150 L/min
40 L/min
Working Range
Max Digging Depth
6300 mm
2720 mm
Max Digging Depth
6300 mm
2720 mm
Max Vertical Wall Digging Depth
5720 mm
2130 mm
Max Vertical Wall Digging Depth
5720 mm
2130 mm
Max Reach at Ground Level
9470 mm
4650 mm
Max Reach at Ground Level
9470 mm
4650 mm
Max Dumping Height
6710 mm
2750 mm
Max Dumping Height
6710 mm
2750 mm
Max Cutting Height
9250 mm
4300 mm
Max Cutting Height
9250 mm
4300 mm
Boom Length
5.700 m
2.030 m
Boom Length
5.700 m
2.030 m
Arm Length
2500 mm
1300 mm
Arm Length
2500 mm
1300 mm
Bucket Breakout Force
143 kN
24.7 kN
Bucket Breakout Force
143 kN
24.7 kN
Arm Tear-out Force
99 kN
15.6 kN
Arm Tear-out Force
99 kN
15.6 kN
Capacities
Fuel Tank Capacity
410 litres
40 litres
Fuel Tank Capacity
410 litres
40 litres
Hydraulic Tank Capacity
115 litres
28 litres
Hydraulic Tank Capacity
115 litres
28 litres
Cooling System Capacity
40 litres
6.5 litres
Cooling System Capacity
40 litres
6.5 litres
Engine Oil Capacity
25 litres
5.1 litres
Engine Oil Capacity
25 litres
5.1 litres
Swing Drive Oil Capacity
5 litres
0.8 litres
Swing Drive Oil Capacity
5 litres
0.8 litres
Final Drive Gear Oil Capacity
16 litres
0.7 litres
Final Drive Gear Oil Capacity
16 litres
0.7 litres
Under Carriage
Track Shoe Width
600 mm
300 mm
Track Shoe Width
600 mm
300 mm
Track Gauge
2200 mm
1250 mm
Track Gauge
2200 mm
1250 mm
Track Length on Ground
4,080 mm
1550 mm
Track Length on Ground
4,080 mm
1550 mm
Ground Clearance
450 mm
290 mm
Ground Clearance
450 mm
290 mm
Tail Swing Radius
2750 mm
775 mm
Tail Swing Radius
2750 mm
775 mm
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
X‑leg center frame with pentagonal box‑type track frames
Undercarriage Type
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
X‑leg center frame with pentagonal box‑type track frames
Steering & Brakes
Overall Length
9530 mm
4290 mm
Overall Length
9530 mm
4290 mm
Overall Width
2800 mm
1550 mm
Overall Width
2800 mm
1550 mm
Overall Height
3050 mm
2470 mm
Overall Height
3050 mm
2470 mm
Cab Height
3050 mm
2350 mm
Cab Height
3050 mm
2350 mm
Boom Height
3.200 m
2.470 m
Boom Height
3.200 m
2.470 m
Track Width
600 mm
300 mm
Track Width
600 mm
300 mm
Performances
Travel Speed
5.5 km/h
4.2 km/h
Travel Speed
5.5 km/h
4.2 km/h
Swing Speed
11.5 rpm
9.1 rpm
Swing Speed
11.5 rpm
9.1 rpm
Gradeability
70 %
58 %
Gradeability
70 %
58 %
Drawbar Pull
205 kN
28.4 kN
Drawbar Pull
205 kN
28.4 kN
Bucket And Attachments
Bucket Capacity
0.92 Cu.m
0.08 Cu.m
Bucket Capacity
0.92 Cu.m
0.08 Cu.m
Bucket Options
0.9 – 1.2
0.07 - 0.08
Bucket Options
0.9 – 1.2
0.07 - 0.08
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Breaker, Auger, Grapple
Attachment Compatibility
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Breaker, Auger, Grapple
Cabin And Controls
Cabin AC
Yes
No
Cabin AC
Yes
No
Display Type
LCD Monitor
Analog + LCD indicators
Display Type
LCD Monitor
Analog + LCD indicators
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Adjustable suspension seat
Adjustable suspension seat
Seat Type
Adjustable suspension seat
Adjustable suspension seat
Noise Level
72 dB(A)
74 dB(A)
Noise Level
72 dB(A)
74 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2x12 V
12 V
Battery
2x12 V
12 V
Alternator Output
80 A
40 A
Alternator Output
80 A
40 A
Lighting Type
Halogen
Halogen
Lighting Type
Halogen
Halogen
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.
HYUNDAI R30Z-9AK
Pros
- Compact size & zero tail swing – ideal for tight urban/landscape sites.
- Stable operating weight (~2.9 t) gives good balance and traction for a 3-ton class machine.
- Hydraulic system with cross-sensing & fuel-saving pumps offers smooth control and efficiency.
