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JCB 18Z VS CAT 320D3 Comparison
JCB 18Z
₹ 25 L - 30 L
VS
CAT 320D3
₹ 25 L - 28 L
JCB 18Z
₹25L
CAT 320D3
₹25L
Compare excavators helps you make an informed purchase decision.
JCB 18Z
From ₹ 25 Lakh
CAT 320D3
From ₹ 25 Lakh
Engine
Model
Perkins 403D‑07 (Diesel, water‑cooled)
Cat ALUW06DTI
Model
Perkins 403D‑07 (Diesel, water‑cooled)
Cat ALUW06DTI
Gross Power
11.7 kw
100 kw
Gross Power
11.7 kw
100 kw
Net Power
10.8 kw
85 kw
Net Power
10.8 kw
85 kw
Engine Power
15.68 HP
134 HP
Engine Power
15.68 HP
134 HP
Engine Displacement
762 cc
5760 cc
Engine Displacement
762 cc
5760 cc
Number Of Cylinders
3 Nos
6 Nos
Number Of Cylinders
3 Nos
6 Nos
Rated RPM
2550 rpm
1700 rpm
Rated RPM
2550 rpm
1700 rpm
Emission Standard
BS IV
BS IV
Emission Standard
BS IV
BS IV
Max Torque
45.6 Nm
620 Nm
Max Torque
45.6 Nm
620 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
1749 kg
45860 kg
Operating Weight
1749 kg
45860 kg
Machine Weight
1749 kg
42478 kg
Machine Weight
1749 kg
42478 kg
Counter Weight
1500 kg
10211 kg
Counter Weight
1500 kg
10211 kg
Ground Pressure
0.4 kg
44 kg
Ground Pressure
0.4 kg
44 kg
Hydraulic System
Main Pump Type
fixed displacement piston pump
Variable displacement axial piston pumps
Main Pump Type
fixed displacement piston pump
Variable displacement axial piston pumps
Maximum Hydraulic Flow
36 L/min
420 L/min
Maximum Hydraulic Flow
36 L/min
420 L/min
Maximum System Pressure
235 bar
350 bar
Maximum System Pressure
235 bar
350 bar
Hydraulic Oil Capacity
28 litres
234 litres
Hydraulic Oil Capacity
28 litres
234 litres
Auxiliary Hydraulic Flow
32 L/min
150 L/min
Auxiliary Hydraulic Flow
32 L/min
150 L/min
Working Range
Max Digging Depth
3560 mm
6300 mm
Max Digging Depth
3560 mm
6300 mm
Max Vertical Wall Digging Depth
1930 mm
5720 mm
Max Vertical Wall Digging Depth
1930 mm
5720 mm
Max Reach at Ground Level
3830 mm
9470 mm
Max Reach at Ground Level
3830 mm
9470 mm
Max Dumping Height
2598 mm
6710 mm
Max Dumping Height
2598 mm
6710 mm
Max Cutting Height
3556 mm
9250 mm
Max Cutting Height
3556 mm
9250 mm
Boom Length
1.700 m
5.700 m
Boom Length
1.700 m
5.700 m
Arm Length
800 mm
2500 mm
Arm Length
800 mm
2500 mm
Bucket Breakout Force
15.6 kN
143 kN
Bucket Breakout Force
15.6 kN
143 kN
Arm Tear-out Force
8.8 kN
99 kN
Arm Tear-out Force
8.8 kN
99 kN
Capacities
Fuel Tank Capacity
20.5 litres
410 litres
Fuel Tank Capacity
20.5 litres
410 litres
Hydraulic Tank Capacity
15 litres
115 litres
Hydraulic Tank Capacity
15 litres
115 litres
Cooling System Capacity
4.3 litres
40 litres
Cooling System Capacity
4.3 litres
40 litres
Engine Oil Capacity
2.5 litres
25 litres
Engine Oil Capacity
2.5 litres
25 litres
Swing Drive Oil Capacity
3 litres
5 litres
Swing Drive Oil Capacity
3 litres
5 litres
Final Drive Gear Oil Capacity
4 litres
16 litres
Final Drive Gear Oil Capacity
4 litres
16 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
4,080 mm
Track Length on Ground
1220 mm
4,080 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
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Undercarriage Type
Crawler – Rubber Tracks
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Steering & Brakes
Overall Length
3547 mm
9530 mm
Overall Length
3547 mm
9530 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
3050 mm
Cab Height
2100 mm
3050 mm
Boom Height
3.500 m
3.200 m
Boom Height
3.500 m
3.200 m
Track Width
230 mm
600 mm
Track Width
230 mm
600 mm
Performances
Travel Speed
2 km/h
5.5 km/h
Travel Speed
2 km/h
5.5 km/h
Swing Speed
7.9 rpm
11.5 rpm
Swing Speed
7.9 rpm
11.5 rpm
Gradeability
35 %
70 %
Gradeability
35 %
70 %
Drawbar Pull
120 kN
205 kN
Drawbar Pull
120 kN
205 kN
Bucket And Attachments
Bucket Capacity
0.4 Cu.m
0.92 Cu.m
Bucket Capacity
0.4 Cu.m
0.92 Cu.m
Bucket Options
0.4
0.9 – 1.2
Bucket Options
0.4
0.9 – 1.2
Attachment Compatibility
Breaker, auger, grapple (via aux. hydraulics)
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Attachment Compatibility
Breaker, auger, grapple (via aux. hydraulics)
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
7 inch LCD
LCD Monitor
Display Type
7 inch LCD
LCD Monitor
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Basic suspension/ vinyl
Adjustable suspension seat
Seat Type
Basic suspension/ vinyl
Adjustable suspension seat
Noise Level
72 dB(A)
72 dB(A)
Noise Level
72 dB(A)
72 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
12 V
2x12 V
Battery
12 V
2x12 V
Alternator Output
60 A
80 A
Alternator Output
60 A
80 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 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.
