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Tata Hitachi EX 70 Super Plus VS LiuGong 921 Di Comparison
Tata Hitachi EX 70 Super Plus
₹ 30 L - 32 L
VS
LiuGong 921 Di
₹ 54 L - 56 L
Tata Hitachi EX 70 Super Plus
₹30L
LiuGong 921 Di
₹54L
Compare excavators helps you make an informed purchase decision.
Tata Hitachi EX 70 Super Plus
From ₹ 30 Lakh
LiuGong 921 Di
From ₹ 54 Lakh
Engine
Model
TATA‑497 NA
Cummins 6BT5.9‑C140
Model
TATA‑497 NA
Cummins 6BT5.9‑C140
Gross Power
43 kw
170 kw
Gross Power
43 kw
170 kw
Net Power
41 kw
170 kw
Net Power
41 kw
170 kw
Engine Power
55 HP
140 HP
Engine Power
55 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
2100 rpm
2000 rpm
Rated RPM
2100 rpm
2000 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
186 Nm
614 Nm
Max Torque
186 Nm
614 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
7000 kg
21000 kg
Operating Weight
7000 kg
21000 kg
Machine Weight
7000 kg
21000 kg
Machine Weight
7000 kg
21000 kg
Counter Weight
1212 kg
5341 kg
Counter Weight
1212 kg
5341 kg
Ground Pressure
31.4 kg
45 kg
Ground Pressure
31.4 kg
45 kg
Hydraulic System
Main Pump Type
Variable Pump
Variable displacement piston pumps
Main Pump Type
Variable Pump
Variable displacement piston pumps
Maximum Hydraulic Flow
60 L/min
210 L/min
Maximum Hydraulic Flow
60 L/min
210 L/min
Maximum System Pressure
34 bar
343 bar
Maximum System Pressure
34 bar
343 bar
Hydraulic Oil Capacity
42 litres
330 litres
Hydraulic Oil Capacity
42 litres
330 litres
Auxiliary Hydraulic Flow
32 L/min
230 L/min
Auxiliary Hydraulic Flow
32 L/min
230 L/min
Working Range
Max Digging Depth
4150 mm
5875 mm
Max Digging Depth
4150 mm
5875 mm
Max Vertical Wall Digging Depth
3500 mm
4578 mm
Max Vertical Wall Digging Depth
3500 mm
4578 mm
Max Reach at Ground Level
6160 mm
9256 mm
Max Reach at Ground Level
6160 mm
9256 mm
Max Dumping Height
5470 mm
6798 mm
Max Dumping Height
5470 mm
6798 mm
Max Cutting Height
7550 mm
5661 mm
Max Cutting Height
7550 mm
5661 mm
Boom Length
3.720 m
5.412 m
Boom Length
3.720 m
5.412 m
Arm Length
1620 mm
2800 mm
Arm Length
1620 mm
2800 mm
Bucket Breakout Force
52 kN
159 kN
Bucket Breakout Force
52 kN
159 kN
Arm Tear-out Force
35 kN
113 kN
Arm Tear-out Force
35 kN
113 kN
Capacities
Fuel Tank Capacity
135 litres
412 litres
Fuel Tank Capacity
135 litres
412 litres
Hydraulic Tank Capacity
42 litres
230 litres
Hydraulic Tank Capacity
42 litres
230 litres
Cooling System Capacity
15 litres
30 litres
Cooling System Capacity
15 litres
30 litres
Engine Oil Capacity
9 litres
25 litres
Engine Oil Capacity
9 litres
25 litres
Swing Drive Oil Capacity
3 litres
7 litres
Swing Drive Oil Capacity
3 litres
7 litres
Final Drive Gear Oil Capacity
2 litres
5 litres
Final Drive Gear Oil Capacity
2 litres
5 litres
Under Carriage
Track Shoe Width
450 mm
600 mm
Track Shoe Width
450 mm
600 mm
Track Gauge
1850 mm
2200 mm
Track Gauge
1850 mm
2200 mm
Track Length on Ground
2080 mm
4170 mm
Track Length on Ground
2080 mm
4170 mm
Ground Clearance
365 mm
440 mm
Ground Clearance
365 mm
440 mm
Tail Swing Radius
1750 mm
2860 mm
Tail Swing Radius
1750 mm
2860 mm
Undercarriage Type
Crawler – Steel Tracks
Tracked/Crawler undercarriage
Undercarriage Type
Crawler – Steel Tracks
Tracked/Crawler undercarriage
Steering & Brakes
Overall Length
5840 mm
9712 mm
Overall Length
5840 mm
9712 mm
Overall Width
2030 mm
2800 mm
Overall Width
2030 mm
2800 mm
Overall Height
2700 mm
3050 mm
Overall Height
2700 mm
3050 mm
Cab Height
2680 mm
5431 mm
Cab Height
2680 mm
5431 mm
Boom Height
2.500 m
3.500 m
Boom Height
2.500 m
3.500 m
Track Width
1850 mm
600 mm
Track Width
1850 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
14 rpm
12 rpm
Swing Speed
14 rpm
12 rpm
Gradeability
30 %
70 %
Gradeability
30 %
70 %
Drawbar Pull
48 kN
210 kN
Drawbar Pull
48 kN
210 kN
Bucket And Attachments
Bucket Capacity
0.68 Cu.m
0.95 Cu.m
Bucket Capacity
0.68 Cu.m
0.95 Cu.m
Bucket Options
0.68/0.8
0.85 - 0.95
Bucket Options
0.68/0.8
0.85 - 0.95
Attachment Compatibility
Hydraulic breaker, auger, grapple
Breaker/grapple/powertilt
Attachment Compatibility
Hydraulic breaker, auger, grapple
Breaker/grapple/powertilt
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
LCD Multi-Function
Digital/analog combo (basic)
Display Type
LCD Multi-Function
Digital/analog combo (basic)
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Adjustable Air Suspension
Operator seat with suspension
Seat Type
Adjustable Air Suspension
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
55 A
80 A
Alternator Output
55 A
80 A
Lighting Type
Halogen
LED
Lighting Type
Halogen
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
Tata Hitachi EX 70 Super Plus
Pros
- Good power for size: 55 HP is respectable for a 7‑ton class — strong for medium earthmoving.
- Decent boom height & reach: ~7.5 m cutting height gives flexibility in loading trucks/stockpiles
- Relatively simple to operate & maintain: Tata Hitachi’s wide dealer network in India
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
