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CAT 330 GC VS LiuGong 921 Di Comparison
CAT 330 GC
₹ 35 L - 48 L
VS
LiuGong 921 Di
₹ 54 L - 56 L
CAT 330 GC
₹35L
LiuGong 921 Di
₹54L
Compare excavators helps you make an informed purchase decision.
CAT 330 GC
From ₹ 35 Lakh
LiuGong 921 Di
From ₹ 54 Lakh
Engine
Model
Cat® C7.1
Cummins 6BT5.9‑C140
Model
Cat® C7.1
Cummins 6BT5.9‑C140
Gross Power
151 kw
170 kw
Gross Power
151 kw
170 kw
Net Power
158 kw
170 kw
Net Power
158 kw
170 kw
Engine Power
213 HP
140 HP
Engine Power
213 HP
140 HP
Engine Displacement
7010 cc
5900 cc
Engine Displacement
7010 cc
5900 cc
Number Of Cylinders
6 Nos
6 Nos
Number Of Cylinders
6 Nos
6 Nos
Rated RPM
2200 rpm
2000 rpm
Rated RPM
2200 rpm
2000 rpm
Emission Standard
stage V
BS III
Emission Standard
stage V
BS III
Max Torque
800 Nm
614 Nm
Max Torque
800 Nm
614 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
28900 kg
21000 kg
Operating Weight
28900 kg
21000 kg
Machine Weight
30 900 kg
21000 kg
Machine Weight
30 900 kg
21000 kg
Counter Weight
6700 kg
5341 kg
Counter Weight
6700 kg
5341 kg
Ground Pressure
45 kg
45 kg
Ground Pressure
45 kg
45 kg
Hydraulic System
Main Pump Type
variable in axial position
Variable displacement piston pumps
Main Pump Type
variable in axial position
Variable displacement piston pumps
Maximum Hydraulic Flow
560 L/min
210 L/min
Maximum Hydraulic Flow
560 L/min
210 L/min
Maximum System Pressure
350 bar
343 bar
Maximum System Pressure
350 bar
343 bar
Hydraulic Oil Capacity
310 litres
330 litres
Hydraulic Oil Capacity
310 litres
330 litres
Auxiliary Hydraulic Flow
180 L/min
230 L/min
Auxiliary Hydraulic Flow
180 L/min
230 L/min
Working Range
Max Digging Depth
7260 mm
5875 mm
Max Digging Depth
7260 mm
5875 mm
Max Vertical Wall Digging Depth
6030 mm
4578 mm
Max Vertical Wall Digging Depth
6030 mm
4578 mm
Max Reach at Ground Level
10690 mm
9256 mm
Max Reach at Ground Level
10690 mm
9256 mm
Max Dumping Height
6940 mm
6798 mm
Max Dumping Height
6940 mm
6798 mm
Max Cutting Height
10020 mm
5661 mm
Max Cutting Height
10020 mm
5661 mm
Boom Length
6.150 m
5.412 m
Boom Length
6.150 m
5.412 m
Arm Length
3200 mm
2800 mm
Arm Length
3200 mm
2800 mm
Bucket Breakout Force
179 kN
159 kN
Bucket Breakout Force
179 kN
159 kN
Arm Tear-out Force
126 kN
113 kN
Arm Tear-out Force
126 kN
113 kN
Capacities
Fuel Tank Capacity
474 litres
412 litres
Fuel Tank Capacity
474 litres
412 litres
Hydraulic Tank Capacity
147 litres
230 litres
Hydraulic Tank Capacity
147 litres
230 litres
Cooling System Capacity
25 litres
30 litres
Cooling System Capacity
25 litres
30 litres
Engine Oil Capacity
25 litres
25 litres
Engine Oil Capacity
25 litres
25 litres
Swing Drive Oil Capacity
10 litres
7 litres
Swing Drive Oil Capacity
10 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
600 mm
600 mm
Track Shoe Width
600 mm
600 mm
Track Gauge
2390 mm
2200 mm
Track Gauge
2390 mm
2200 mm
Track Length on Ground
3990 mm
4170 mm
Track Length on Ground
3990 mm
4170 mm
Ground Clearance
490 mm
440 mm
Ground Clearance
490 mm
440 mm
Tail Swing Radius
3130 mm
2860 mm
Tail Swing Radius
3130 mm
2860 mm
Undercarriage Type
Tracked undercarriage with steel track shoes and grease‑tensioned adjustment – typical crawler system for medium excavators; Cat offers several undercarriage and shoe size options for jobsite needs.
Tracked/Crawler undercarriage
Undercarriage Type
Tracked undercarriage with steel track shoes and grease‑tensioned adjustment – typical crawler system for medium excavators; Cat offers several undercarriage and shoe size options for jobsite needs.
Tracked/Crawler undercarriage
Steering & Brakes
Overall Length
10 420 mm
9712 mm
Overall Length
10 420 mm
9712 mm
Overall Width
3190 mm
2800 mm
Overall Width
3190 mm
2800 mm
Overall Height
3050 mm
3050 mm
Overall Height
3050 mm
3050 mm
Cab Height
3050 mm
5431 mm
Cab Height
3050 mm
5431 mm
Boom Height
3.050 m
3.500 m
Boom Height
3.050 m
3.500 m
Track Width
800 mm
600 mm
Track Width
800 mm
600 mm
Performances
Travel Speed
5.3 km/h
5.3 km/h
Travel Speed
5.3 km/h
5.3 km/h
Swing Speed
11 rpm
12 rpm
Swing Speed
11 rpm
12 rpm
Gradeability
70 %
70 %
Gradeability
70 %
70 %
Drawbar Pull
247 kN
210 kN
Drawbar Pull
247 kN
210 kN
Bucket And Attachments
Bucket Capacity
1.6 Cu.m
0.95 Cu.m
Bucket Capacity
1.6 Cu.m
0.95 Cu.m
Bucket Options
Standard / HD / Extra HD buckets
0.85 - 0.95
Bucket Options
Standard / HD / Extra HD buckets
0.85 - 0.95
Attachment Compatibility
Hammer, Ripper, etc. (optional)
Breaker/grapple/powertilt
Attachment Compatibility
Hammer, Ripper, etc. (optional)
Breaker/grapple/powertilt
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
Touchscreen / monitor available
Digital/analog combo (basic)
Display Type
Touchscreen / monitor available
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
103 dB(A)
76 dB(A)
Noise Level
103 dB(A)
76 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
24 V
24 V
Battery
24 V
24 V
Alternator Output
80 A
80 A
Alternator Output
80 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
CAT 330 GC
Pros
- Lower Operating & Maintenance Costs
- Fuel Efficiency & Emissions
- Operator Comfort & Safety
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
