Compare Excavators. Choose Smarter.
JCB 18Z VS CAT 320D Comparison
JCB 18Z
₹ 25 L - 30 L
VS
CAT 320D
₹ 22 L - 23.99 L
JCB 18Z
₹25L
CAT 320D
₹22L
Compare excavators helps you make an informed purchase decision.
JCB 18Z
From ₹ 25 Lakh
CAT 320D
From ₹ 22 Lakh
Engine
Model
Perkins 403D‑07 (Diesel, water‑cooled)
CAT 3066TA
Model
Perkins 403D‑07 (Diesel, water‑cooled)
CAT 3066TA
Gross Power
11.7 kw
112.8 kw
Gross Power
11.7 kw
112.8 kw
Net Power
10.8 kw
104 kw
Net Power
10.8 kw
104 kw
Engine Power
15.68 HP
140 HP
Engine Power
15.68 HP
140 HP
Engine Displacement
762 cc
6370 cc
Engine Displacement
762 cc
6370 cc
Number Of Cylinders
3 Nos
6 Nos
Number Of Cylinders
3 Nos
6 Nos
Rated RPM
2550 rpm
1800 rpm
Rated RPM
2550 rpm
1800 rpm
Emission Standard
BS IV
BS IV
Emission Standard
BS IV
BS IV
Max Torque
45.6 Nm
650 Nm
Max Torque
45.6 Nm
650 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
1749 kg
20330 kg
Operating Weight
1749 kg
20330 kg
Machine Weight
1749 kg
20300 kg
Machine Weight
1749 kg
20300 kg
Counter Weight
1500 kg
4200 kg
Counter Weight
1500 kg
4200 kg
Ground Pressure
0.4 kg
55 kg
Ground Pressure
0.4 kg
55 kg
Hydraulic System
Main Pump Type
fixed displacement piston pump
Variable displacement axial piston
Main Pump Type
fixed displacement piston pump
Variable displacement axial piston
Maximum Hydraulic Flow
36 L/min
205 L/min
Maximum Hydraulic Flow
36 L/min
205 L/min
Maximum System Pressure
235 bar
350 bar
Maximum System Pressure
235 bar
350 bar
Hydraulic Oil Capacity
28 litres
260 litres
Hydraulic Oil Capacity
28 litres
260 litres
Auxiliary Hydraulic Flow
32 L/min
60 L/min
Auxiliary Hydraulic Flow
32 L/min
60 L/min
Working Range
Max Digging Depth
3560 mm
6720 mm
Max Digging Depth
3560 mm
6720 mm
Max Vertical Wall Digging Depth
1930 mm
6980 mm
Max Vertical Wall Digging Depth
1930 mm
6980 mm
Max Reach at Ground Level
3830 mm
10790 mm
Max Reach at Ground Level
3830 mm
10790 mm
Max Dumping Height
2598 mm
6940 mm
Max Dumping Height
2598 mm
6940 mm
Max Cutting Height
3556 mm
9960 mm
Max Cutting Height
3556 mm
9960 mm
Boom Length
1.700 m
5.700 m
Boom Length
1.700 m
5.700 m
Arm Length
800 mm
2.5 mm
Arm Length
800 mm
2.5 mm
Bucket Breakout Force
15.6 kN
135 kN
Bucket Breakout Force
15.6 kN
135 kN
Arm Tear-out Force
8.8 kN
118 kN
Arm Tear-out Force
8.8 kN
118 kN
Capacities
Fuel Tank Capacity
20.5 litres
410 litres
Fuel Tank Capacity
20.5 litres
410 litres
Hydraulic Tank Capacity
15 litres
120 litres
Hydraulic Tank Capacity
15 litres
120 litres
Cooling System Capacity
4.3 litres
25 litres
Cooling System Capacity
4.3 litres
25 litres
Engine Oil Capacity
2.5 litres
30 litres
Engine Oil Capacity
2.5 litres
30 litres
Swing Drive Oil Capacity
3 litres
8 litres
Swing Drive Oil Capacity
3 litres
8 litres
Final Drive Gear Oil Capacity
4 litres
6 litres
Final Drive Gear Oil Capacity
4 litres
6 litres
Under Carriage
Track Shoe Width
230 mm
600 mm
Track Shoe Width
230 mm
600 mm
Track Gauge
750 mm
2200 mm
Track Gauge
750 mm
2200 mm
Track Length on Ground
1220 mm
3265 mm
Track Length on Ground
1220 mm
3265 mm
Ground Clearance
162 mm
450 mm
Ground Clearance
162 mm
450 mm
Tail Swing Radius
1103 mm
2750 mm
Tail Swing Radius
1103 mm
2750 mm
Undercarriage Type
Crawler – Rubber Tracks
Crawler – Steel Tracks
Undercarriage Type
Crawler – Rubber Tracks
Crawler – Steel Tracks
Steering & Brakes
Overall Length
3547 mm
9450 mm
Overall Length
3547 mm
9450 mm
Overall Width
1006 mm
2800 mm
Overall Width
1006 mm
2800 mm
Overall Height
2340 mm
3050 mm
Overall Height
2340 mm
3050 mm
Cab Height
2100 mm
2950 mm
Cab Height
2100 mm
2950 mm
Boom Height
3.500 m
3.050 m
Boom Height
3.500 m
3.050 m
Track Width
230 mm
600 mm
Track Width
230 mm
600 mm
Performances
Travel Speed
2 km/h
5.6 km/h
Travel Speed
2 km/h
5.6 km/h
Swing Speed
7.9 rpm
10.5 rpm
Swing Speed
7.9 rpm
10.5 rpm
Gradeability
35 %
30 %
Gradeability
35 %
30 %
Drawbar Pull
120 kN
205 kN
Drawbar Pull
120 kN
205 kN
Bucket And Attachments
Bucket Capacity
0.4 Cu.m
1 Cu.m
Bucket Capacity
0.4 Cu.m
1 Cu.m
Bucket Options
0.4
0.57–1.56
Bucket Options
0.4
0.57–1.56
Attachment Compatibility
Breaker, auger, grapple (via aux. hydraulics)
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Attachment Compatibility
Breaker, auger, grapple (via aux. hydraulics)
Standard Cat thumb, breaker, auger, tilt‑rotator kits
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
7 inch LCD
LCD monitor on newer versions
Display Type
7 inch LCD
LCD monitor on newer versions
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Basic suspension/ vinyl
Air suspension available
Seat Type
Basic suspension/ vinyl
Air suspension available
Noise Level
72 dB(A)
75 dB(A)
Noise Level
72 dB(A)
75 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
12 V
24 V
Battery
12 V
24 V
Alternator Output
60 A
70 A
Alternator Output
60 A
70 A
Lighting Type
LED
Halogen
Lighting Type
LED
Halogen
Additional Features
Auto Idle
No
Yes
Auto Idle
No
Yes
Eco Mode
Yes
Yes
Eco Mode
Yes
Yes
Telematics
Yes
Yes
Telematics
Yes
Yes
Diagnostic System
Yes
Yes
Diagnostic System
Yes
Yes
JCB 18Z
Pros
- Zero tail swing design lets you work in confined spaces without the rear counterweight hitting obstacles.
- Easy access service panels and 180° opening door make maintenance quicker.
- Heavy‑duty steel bodywork and ROPS/TOPS canopy protect the machine and operator.
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.
