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Tata Hitachi ZAXIS 670H VS LiuGong 921 Di Comparison
Tata Hitachi ZAXIS 670H
₹ 60 L - 74.99 L
VS
LiuGong 921 Di
₹ 54 L - 56 L
Tata Hitachi ZAXIS 670H
₹60L
LiuGong 921 Di
₹54L
Compare excavators helps you make an informed purchase decision.
Tata Hitachi ZAXIS 670H
From ₹ 60 Lakh
LiuGong 921 Di
From ₹ 54 Lakh
Engine
Model
Isuzu BB‑6WG1X (Turbocharged 4‑cycle, direct injection, water cooled)
Cummins 6BT5.9‑C140
Model
Isuzu BB‑6WG1X (Turbocharged 4‑cycle, direct injection, water cooled)
Cummins 6BT5.9‑C140
Gross Power
295 kw
170 kw
Gross Power
295 kw
170 kw
Net Power
295 kw
170 kw
Net Power
295 kw
170 kw
Engine Power
395 HP
140 HP
Engine Power
395 HP
140 HP
Engine Displacement
15681 cc
5900 cc
Engine Displacement
15681 cc
5900 cc
Number Of Cylinders
6 Nos
6 Nos
Number Of Cylinders
6 Nos
6 Nos
Rated RPM
1800 rpm
2000 rpm
Rated RPM
1800 rpm
2000 rpm
Emission Standard
BS II
BS III
Emission Standard
BS II
BS III
Max Torque
1540 Nm
614 Nm
Max Torque
1540 Nm
614 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
63500 kg
21000 kg
Operating Weight
63500 kg
21000 kg
Machine Weight
63500 kg
21000 kg
Machine Weight
63500 kg
21000 kg
Counter Weight
12002 kg
5341 kg
Counter Weight
12002 kg
5341 kg
Ground Pressure
107 kg
45 kg
Ground Pressure
107 kg
45 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston pumps
Variable displacement piston pumps
Main Pump Type
Variable displacement axial piston pumps
Variable displacement piston pumps
Maximum Hydraulic Flow
950 L/min
210 L/min
Maximum Hydraulic Flow
950 L/min
210 L/min
Maximum System Pressure
309 bar
343 bar
Maximum System Pressure
309 bar
343 bar
Hydraulic Oil Capacity
618 litres
330 litres
Hydraulic Oil Capacity
618 litres
330 litres
Auxiliary Hydraulic Flow
30 L/min
230 L/min
Auxiliary Hydraulic Flow
30 L/min
230 L/min
Working Range
Max Digging Depth
7046 mm
5875 mm
Max Digging Depth
7046 mm
5875 mm
Max Vertical Wall Digging Depth
6886 mm
4578 mm
Max Vertical Wall Digging Depth
6886 mm
4578 mm
Max Reach at Ground Level
11370 mm
9256 mm
Max Reach at Ground Level
11370 mm
9256 mm
Max Dumping Height
6886 mm
6798 mm
Max Dumping Height
6886 mm
6798 mm
Max Cutting Height
10867 mm
5661 mm
Max Cutting Height
10867 mm
5661 mm
Boom Length
6.600 m
5.412 m
Boom Length
6.600 m
5.412 m
Arm Length
2900 mm
2800 mm
Arm Length
2900 mm
2800 mm
Bucket Breakout Force
308 kN
159 kN
Bucket Breakout Force
308 kN
159 kN
Arm Tear-out Force
258 kN
113 kN
Arm Tear-out Force
258 kN
113 kN
Capacities
Fuel Tank Capacity
740 litres
412 litres
Fuel Tank Capacity
740 litres
412 litres
Hydraulic Tank Capacity
310 litres
230 litres
Hydraulic Tank Capacity
310 litres
230 litres
Cooling System Capacity
98 litres
30 litres
Cooling System Capacity
98 litres
30 litres
Engine Oil Capacity
55 litres
25 litres
Engine Oil Capacity
55 litres
25 litres
Swing Drive Oil Capacity
12 litres
7 litres
Swing Drive Oil Capacity
12 litres
7 litres
Final Drive Gear Oil Capacity
10 litres
5 litres
Final Drive Gear Oil Capacity
10 litres
5 litres
Under Carriage
Track Shoe Width
600 mm
600 mm
Track Shoe Width
600 mm
600 mm
Track Gauge
3200 mm
2200 mm
Track Gauge
3200 mm
2200 mm
Track Length on Ground
4250 mm
4170 mm
Track Length on Ground
4250 mm
4170 mm
Ground Clearance
800 mm
440 mm
Ground Clearance
800 mm
440 mm
Tail Swing Radius
3800 mm
2860 mm
Tail Swing Radius
3800 mm
2860 mm
Undercarriage Type
Tracked undercarriage with steel grouser shoes and grease tensioning (heavy crawler configuration for excavators)
Tracked/Crawler undercarriage
Undercarriage Type
Tracked undercarriage with steel grouser shoes and grease tensioning (heavy crawler configuration for excavators)
Tracked/Crawler undercarriage
Steering & Brakes
Overall Length
11650 mm
9712 mm
Overall Length
11650 mm
9712 mm
Overall Width
3200 mm
2800 mm
Overall Width
3200 mm
2800 mm
Overall Height
3500 mm
3050 mm
Overall Height
3500 mm
3050 mm
Cab Height
3500 mm
5431 mm
Cab Height
3500 mm
5431 mm
Boom Height
3.700 m
3.500 m
Boom Height
3.700 m
3.500 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
5 km/h
5.3 km/h
Travel Speed
5 km/h
5.3 km/h
Swing Speed
10.2 rpm
12 rpm
Swing Speed
10.2 rpm
12 rpm
Gradeability
70 %
70 %
Gradeability
70 %
70 %
Drawbar Pull
415 kN
210 kN
Drawbar Pull
415 kN
210 kN
Bucket And Attachments
Bucket Capacity
3.3 Cu.m
0.95 Cu.m
Bucket Capacity
3.3 Cu.m
0.95 Cu.m
Bucket Options
3.3 - 4.1
0.85 - 0.95
Bucket Options
3.3 - 4.1
0.85 - 0.95
Attachment Compatibility
Breaker, ripper, grapples
Breaker/grapple/powertilt
Attachment Compatibility
Breaker, ripper, grapples
Breaker/grapple/powertilt
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
Digital + analog monitor
Digital/analog combo (basic)
Display Type
Digital + analog monitor
Digital/analog combo (basic)
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Adjustable suspension
Operator seat with suspension
Seat Type
Adjustable suspension
Operator seat with suspension
Noise Level
78 dB(A)
76 dB(A)
Noise Level
78 dB(A)
76 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2x12 V
24 V
Battery
2x12 V
24 V
Alternator Output
50 A
80 A
Alternator Output
50 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
Tata Hitachi ZAXIS 670H
Pros
- High Hydraulic Flow: ~950 L/min total — supports powerful digging and attachments.
- Large Engine Output: 395 HP in a heavy crawler class supports effective performance.
- High Boom/Cut Height: ~10.9 m — effective for loading trucks and high dumps.
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
