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JCB JS81 VS LiuGong 921 Di Comparison
JCB JS81
₹ 34 L - 35 L
VS
LiuGong 921 Di
₹ 54 L - 56 L
JCB JS81
₹34L
LiuGong 921 Di
₹54L
Compare excavators helps you make an informed purchase decision.
JCB JS81
From ₹ 34 Lakh
LiuGong 921 Di
From ₹ 54 Lakh
Engine
Model
Kirloskar 4R 1040 NA
Cummins 6BT5.9‑C140
Model
Kirloskar 4R 1040 NA
Cummins 6BT5.9‑C140
Gross Power
57 kw
170 kw
Gross Power
57 kw
170 kw
Net Power
57 kw
170 kw
Net Power
57 kw
170 kw
Engine Power
76 HP
140 HP
Engine Power
76 HP
140 HP
Engine Displacement
3000 cc
5900 cc
Engine Displacement
3000 cc
5900 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2200 rpm
2000 rpm
Rated RPM
2200 rpm
2000 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
890 Nm
614 Nm
Max Torque
890 Nm
614 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
8050 kg
21000 kg
Operating Weight
8050 kg
21000 kg
Machine Weight
8050 kg
21000 kg
Machine Weight
8050 kg
21000 kg
Counter Weight
1873 kg
5341 kg
Counter Weight
1873 kg
5341 kg
Ground Pressure
35 kg
45 kg
Ground Pressure
35 kg
45 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston type
Variable displacement piston pumps
Main Pump Type
Variable displacement axial piston type
Variable displacement piston pumps
Maximum Hydraulic Flow
140.6 L/min
210 L/min
Maximum Hydraulic Flow
140.6 L/min
210 L/min
Maximum System Pressure
284 bar
343 bar
Maximum System Pressure
284 bar
343 bar
Hydraulic Oil Capacity
92 litres
330 litres
Hydraulic Oil Capacity
92 litres
330 litres
Auxiliary Hydraulic Flow
80 L/min
230 L/min
Auxiliary Hydraulic Flow
80 L/min
230 L/min
Working Range
Max Digging Depth
4080 mm
5875 mm
Max Digging Depth
4080 mm
5875 mm
Max Vertical Wall Digging Depth
4211 mm
4578 mm
Max Vertical Wall Digging Depth
4211 mm
4578 mm
Max Reach at Ground Level
6454 mm
9256 mm
Max Reach at Ground Level
6454 mm
9256 mm
Max Dumping Height
5401 mm
6798 mm
Max Dumping Height
5401 mm
6798 mm
Max Cutting Height
7094 mm
5661 mm
Max Cutting Height
7094 mm
5661 mm
Boom Length
3.7 m
5.412 m
Boom Length
3.7 m
5.412 m
Arm Length
1740 mm
2800 mm
Arm Length
1740 mm
2800 mm
Bucket Breakout Force
56 kN
159 kN
Bucket Breakout Force
56 kN
159 kN
Arm Tear-out Force
41 kN
113 kN
Arm Tear-out Force
41 kN
113 kN
Capacities
Fuel Tank Capacity
164 litres
412 litres
Fuel Tank Capacity
164 litres
412 litres
Hydraulic Tank Capacity
55 litres
230 litres
Hydraulic Tank Capacity
55 litres
230 litres
Cooling System Capacity
23 litres
30 litres
Cooling System Capacity
23 litres
30 litres
Engine Oil Capacity
14 litres
25 litres
Engine Oil Capacity
14 litres
25 litres
Swing Drive Oil Capacity
7 litres
7 litres
Swing Drive Oil Capacity
7 litres
7 litres
Final Drive Gear Oil Capacity
5 litres
5 litres
Final Drive Gear Oil Capacity
5 litres
5 litres
Under Carriage
Track Shoe Width
450 mm
600 mm
Track Shoe Width
450 mm
600 mm
Track Gauge
1700 mm
2200 mm
Track Gauge
1700 mm
2200 mm
Track Length on Ground
2240 mm
4170 mm
Track Length on Ground
2240 mm
4170 mm
Ground Clearance
365 mm
440 mm
Ground Clearance
365 mm
440 mm
Tail Swing Radius
1840 mm
2860 mm
Tail Swing Radius
1840 mm
2860 mm
Undercarriage Type
Welded crawler undercarriage with sealed/greased track chains and grease‑adjusted tensioning system
Tracked/Crawler undercarriage
Undercarriage Type
Welded crawler undercarriage with sealed/greased track chains and grease‑adjusted tensioning system
Tracked/Crawler undercarriage
Steering & Brakes
Overall Length
6230 mm
9712 mm
Overall Length
6230 mm
9712 mm
Overall Width
2220 mm
2800 mm
Overall Width
2220 mm
2800 mm
Overall Height
2722 mm
3050 mm
Overall Height
2722 mm
3050 mm
Cab Height
2720 mm
5431 mm
Cab Height
2720 mm
5431 mm
Boom Height
3.5 m
3.500 m
Boom Height
3.5 m
3.500 m
Track Width
450 mm
600 mm
Track Width
450 mm
600 mm
Performances
Travel Speed
5.1 km/h
5.3 km/h
Travel Speed
5.1 km/h
5.3 km/h
Swing Speed
12.5 rpm
12 rpm
Swing Speed
12.5 rpm
12 rpm
Gradeability
60 %
70 %
Gradeability
60 %
70 %
Drawbar Pull
55 kN
210 kN
Drawbar Pull
55 kN
210 kN
Bucket And Attachments
Bucket Capacity
0.32 Cu.m
0.95 Cu.m
Bucket Capacity
0.32 Cu.m
0.95 Cu.m
Bucket Options
0.24 - 0.32
0.85 - 0.95
Bucket Options
0.24 - 0.32
0.85 - 0.95
Attachment Compatibility
Standard auxiliary circuits
Breaker/grapple/powertilt
Attachment Compatibility
Standard auxiliary circuits
Breaker/grapple/powertilt
Cabin And Controls
Cabin AC
No
Yes
Cabin AC
No
Yes
Display Type
LCD Monitor
Digital/analog combo (basic)
Display Type
LCD Monitor
Digital/analog combo (basic)
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Operator seat with suspension
Seat Type
Suspension Seat
Operator seat with suspension
Noise Level
75 dB(A)
76 dB(A)
Noise Level
75 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 JS81
Pros
- Capable of ~7.1 m digging height and ~6.4 m reach — good for site work, trenches, and moderate depth excavation.
- Powered by ~76 HP Kirloskar engine with robust bucket/dipper tear‑out forces, delivering decent performance vs competitors.
- JCB has extensive dealer/service coverage in India, making parts and support easier compared to some smaller brands.
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
