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JCB 55Z VS LiuGong 921 Di Comparison
JCB 55Z
₹ 36 L - 39 L
VS
LiuGong 921 Di
₹ 54 L - 56 L
JCB 55Z
₹36L
LiuGong 921 Di
₹54L
Compare excavators helps you make an informed purchase decision.
JCB 55Z
From ₹ 36 Lakh
LiuGong 921 Di
From ₹ 54 Lakh
Engine
Model
Stage 3A 404D‑22
Cummins 6BT5.9‑C140
Model
Stage 3A 404D‑22
Cummins 6BT5.9‑C140
Gross Power
35.7 kw
170 kw
Gross Power
35.7 kw
170 kw
Net Power
33.1 kw
170 kw
Net Power
33.1 kw
170 kw
Engine Power
48 HP
140 HP
Engine Power
48 HP
140 HP
Engine Displacement
2179 cc
5900 cc
Engine Displacement
2179 cc
5900 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2600 rpm
2000 rpm
Rated RPM
2600 rpm
2000 rpm
Emission Standard
BS III
BS III
Emission Standard
BS III
BS III
Max Torque
143 Nm
614 Nm
Max Torque
143 Nm
614 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
5520 kg
21000 kg
Operating Weight
5520 kg
21000 kg
Machine Weight
5520 kg
21000 kg
Machine Weight
5520 kg
21000 kg
Counter Weight
982 kg
5341 kg
Counter Weight
982 kg
5341 kg
Ground Pressure
34.3 kg
45 kg
Ground Pressure
34.3 kg
45 kg
Hydraulic System
Main Pump Type
Piston pump
Variable displacement piston pumps
Main Pump Type
Piston pump
Variable displacement piston pumps
Maximum Hydraulic Flow
126 L/min
210 L/min
Maximum Hydraulic Flow
126 L/min
210 L/min
Maximum System Pressure
240 bar
343 bar
Maximum System Pressure
240 bar
343 bar
Hydraulic Oil Capacity
100 litres
330 litres
Hydraulic Oil Capacity
100 litres
330 litres
Auxiliary Hydraulic Flow
63 L/min
230 L/min
Auxiliary Hydraulic Flow
63 L/min
230 L/min
Working Range
Max Digging Depth
3840 mm
5875 mm
Max Digging Depth
3840 mm
5875 mm
Max Vertical Wall Digging Depth
3328 mm
4578 mm
Max Vertical Wall Digging Depth
3328 mm
4578 mm
Max Reach at Ground Level
6200 mm
9256 mm
Max Reach at Ground Level
6200 mm
9256 mm
Max Dumping Height
4270 mm
6798 mm
Max Dumping Height
4270 mm
6798 mm
Max Cutting Height
3728 mm
5661 mm
Max Cutting Height
3728 mm
5661 mm
Boom Length
2.866 m
5.412 m
Boom Length
2.866 m
5.412 m
Arm Length
1450 mm
2800 mm
Arm Length
1450 mm
2800 mm
Bucket Breakout Force
45 kN
159 kN
Bucket Breakout Force
45 kN
159 kN
Arm Tear-out Force
29 kN
113 kN
Arm Tear-out Force
29 kN
113 kN
Capacities
Fuel Tank Capacity
76 litres
412 litres
Fuel Tank Capacity
76 litres
412 litres
Hydraulic Tank Capacity
55 litres
230 litres
Hydraulic Tank Capacity
55 litres
230 litres
Cooling System Capacity
12 litres
30 litres
Cooling System Capacity
12 litres
30 litres
Engine Oil Capacity
9.1 litres
25 litres
Engine Oil Capacity
9.1 litres
25 litres
Swing Drive Oil Capacity
8 litres
7 litres
Swing Drive Oil Capacity
8 litres
7 litres
Final Drive Gear Oil Capacity
12 litres
5 litres
Final Drive Gear Oil Capacity
12 litres
5 litres
Under Carriage
Track Shoe Width
400 mm
600 mm
Track Shoe Width
400 mm
600 mm
Track Gauge
1550 mm
2200 mm
Track Gauge
1550 mm
2200 mm
Track Length on Ground
1950 mm
4170 mm
Track Length on Ground
1950 mm
4170 mm
Ground Clearance
300 mm
440 mm
Ground Clearance
300 mm
440 mm
Tail Swing Radius
975 mm
2860 mm
Tail Swing Radius
975 mm
2860 mm
Undercarriage Type
Rubber/Steel tracked mini‑excavator undercarriage
Tracked/Crawler undercarriage
Undercarriage Type
Rubber/Steel tracked mini‑excavator undercarriage
Tracked/Crawler undercarriage
Steering & Brakes
Overall Length
5520 mm
9712 mm
Overall Length
5520 mm
9712 mm
Overall Width
1960 mm
2800 mm
Overall Width
1960 mm
2800 mm
Overall Height
2551 mm
3050 mm
Overall Height
2551 mm
3050 mm
Cab Height
2551 mm
5431 mm
Cab Height
2551 mm
5431 mm
Boom Height
2.208 m
3.500 m
Boom Height
2.208 m
3.500 m
Track Width
400 mm
600 mm
Track Width
400 mm
600 mm
Performances
Travel Speed
4.6 km/h
5.3 km/h
Travel Speed
4.6 km/h
5.3 km/h
Swing Speed
11 rpm
12 rpm
Swing Speed
11 rpm
12 rpm
Gradeability
35 %
70 %
Gradeability
35 %
70 %
Drawbar Pull
38.1 kN
210 kN
Drawbar Pull
38.1 kN
210 kN
Bucket And Attachments
Bucket Capacity
0.22 Cu.m
0.95 Cu.m
Bucket Capacity
0.22 Cu.m
0.95 Cu.m
Bucket Options
0.14 - 0.22
0.85 - 0.95
Bucket Options
0.14 - 0.22
0.85 - 0.95
Attachment Compatibility
Breakers, augers, quick couplers (optional)
Breaker/grapple/powertilt
Attachment Compatibility
Breakers, augers, quick couplers (optional)
Breaker/grapple/powertilt
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
Standard machine display
Digital/analog combo (basic)
Display Type
Standard machine display
Digital/analog combo (basic)
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Adjustable suspension seat
Operator seat with suspension
Seat Type
Adjustable suspension seat
Operator seat with suspension
Noise Level
76 dB(A)
76 dB(A)
Noise Level
76 dB(A)
76 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
12 V
24 V
Battery
12 V
24 V
Alternator Output
85 A
80 A
Alternator Output
85 A
80 A
Lighting Type
LED
LED
Lighting Type
LED
LED
Additional Features
Auto Idle
Yes
Yes
Auto Idle
Yes
Yes
Eco Mode
Yes
No
Eco Mode
Yes
No
Telematics
Yes
Yes
Telematics
Yes
Yes
Diagnostic System
Yes
Yes
Diagnostic System
Yes
Yes
JCB 55Z
Pros
- 48 hp (35.7 kW), Stage‑compliant engine with ~143 Nm torque helps keep jobs moving.
- Excellent for working close to walls/obstacles in confined sites without damaging structures.
- 3.8 m digging depth and ~6.1 m reach offers versatility across trenching and site prep
LiuGong 921 Di
Pros
- Offers respectable digging depth (~5.9 m) and horizontal reach (~9.2 m), making it suitable for medium‑sized construction and earthmoving tasks like trenching, foundation work, and site prep.
- The boom and reach balance enables both digging and loading without needing heavy long‑reach modifications.
- Compared with heavier or lighter models, the 921Di’s boom reach fits well in the 20‑22 t excavator segment
