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CAT 321 VS Tata Hitachi ZAXIS 650H Comparison
CAT 321
₹ 54 L - 55 L
VS
Tata Hitachi ZAXIS 650H
₹ 30 L - 44.99 L
CAT 321
₹54L
Tata Hitachi ZAXIS 650H
₹30L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
Tata Hitachi ZAXIS 650H
From ₹ 30 Lakh
Engine
Model
Cat® C3.6
Isuzu BB‑6WG1X
Model
Cat® C3.6
Isuzu BB‑6WG1X
Gross Power
100 kw
295 kw
Gross Power
100 kw
295 kw
Net Power
129 kw
295 kw
Net Power
129 kw
295 kw
Engine Power
136 HP
395 HP
Engine Power
136 HP
395 HP
Engine Displacement
3600 cc
15680 cc
Engine Displacement
3600 cc
15680 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2000 rpm
1800 rpm
Rated RPM
2000 rpm
1800 rpm
Emission Standard
BS IV
BS IV
Emission Standard
BS IV
BS IV
Max Torque
500 Nm
1540 Nm
Max Torque
500 Nm
1540 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
58340 kg
Operating Weight
19300 kg
58340 kg
Machine Weight
19300 kg
58340 kg
Machine Weight
19300 kg
58340 kg
Counter Weight
3650 kg
12000 kg
Counter Weight
3650 kg
12000 kg
Ground Pressure
60 kg
102 kg
Ground Pressure
60 kg
102 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement Axial Piston Pumps
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement Axial Piston Pumps
Maximum Hydraulic Flow
315 L/min
8680 L/min
Maximum Hydraulic Flow
315 L/min
8680 L/min
Maximum System Pressure
350 bar
309 bar
Maximum System Pressure
350 bar
309 bar
Hydraulic Oil Capacity
218 litres
618 litres
Hydraulic Oil Capacity
218 litres
618 litres
Auxiliary Hydraulic Flow
120 L/min
423 L/min
Auxiliary Hydraulic Flow
120 L/min
423 L/min
Working Range
Max Digging Depth
5970 mm
15208 mm
Max Digging Depth
5970 mm
15208 mm
Max Vertical Wall Digging Depth
5360 mm
5140 mm
Max Vertical Wall Digging Depth
5360 mm
5140 mm
Max Reach at Ground Level
9150 mm
11350 mm
Max Reach at Ground Level
9150 mm
11350 mm
Max Dumping Height
6250 mm
6980 mm
Max Dumping Height
6250 mm
6980 mm
Max Cutting Height
9120 mm
10770 mm
Max Cutting Height
9120 mm
10770 mm
Boom Length
5.700 m
6.600 m
Boom Length
5.700 m
6.600 m
Arm Length
2250 mm
2900 mm
Arm Length
2250 mm
2900 mm
Bucket Breakout Force
135 kN
308 kN
Bucket Breakout Force
135 kN
308 kN
Arm Tear-out Force
119 kN
258 kN
Arm Tear-out Force
119 kN
258 kN
Capacities
Fuel Tank Capacity
370 litres
740 litres
Fuel Tank Capacity
370 litres
740 litres
Hydraulic Tank Capacity
218 litres
310 litres
Hydraulic Tank Capacity
218 litres
310 litres
Cooling System Capacity
25 litres
98 litres
Cooling System Capacity
25 litres
98 litres
Engine Oil Capacity
11 litres
55 litres
Engine Oil Capacity
11 litres
55 litres
Swing Drive Oil Capacity
6 litres
12 litres
Swing Drive Oil Capacity
6 litres
12 litres
Final Drive Gear Oil Capacity
6 litres
12 litres
Final Drive Gear Oil Capacity
6 litres
12 litres
Under Carriage
Track Shoe Width
800 mm
600 mm
Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
3200 mm
Track Gauge
2380 mm
3200 mm
Track Length on Ground
3650 mm
4590 mm
Track Length on Ground
3650 mm
4590 mm
Ground Clearance
450 mm
810 mm
Ground Clearance
450 mm
810 mm
Tail Swing Radius
1676 mm
3800 mm
Tail Swing Radius
1676 mm
3800 mm
Undercarriage Type
Crawler — steel tracks
Tracked undercarriage with steel grouser shoes and grease‑tensioned track adjustment (standard robust undercarriage for heavy excavators)
Undercarriage Type
Crawler — steel tracks
Tracked undercarriage with steel grouser shoes and grease‑tensioned track adjustment (standard robust undercarriage for heavy excavators)
Steering & Brakes
Overall Length
9570 mm
13030 mm
Overall Length
9570 mm
13030 mm
Overall Width
2800 mm
3990 mm
Overall Width
2800 mm
3990 mm
Overall Height
3250 mm
4270 mm
Overall Height
3250 mm
4270 mm
Cab Height
3250 mm
3500 mm
Cab Height
3250 mm
3500 mm
Boom Height
3.300 m
7 m
Boom Height
3.300 m
7 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
10 km/h
5 km/h
Travel Speed
10 km/h
5 km/h
Swing Speed
10 rpm
7 rpm
Swing Speed
10 rpm
7 rpm
Gradeability
27 %
70 %
Gradeability
27 %
70 %
Drawbar Pull
150 kN
4153 kN
Drawbar Pull
150 kN
4153 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
3.8 Cu.m
Bucket Capacity
1 Cu.m
3.8 Cu.m
Bucket Options
0.8
3.3 - 3.8
Bucket Options
0.8
3.3 - 3.8
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Ripper
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Ripper
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
Digital / Multi‑Function
Display Type
8 LCD Touch Screen
Digital / Multi‑Function
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Adjustable Suspension Seat
Seat Type
Suspension Seat
Adjustable Suspension Seat
Noise Level
70 dB(A)
78 dB(A)
Noise Level
70 dB(A)
78 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
2X12 ,170 V
Battery
2X12 V
2X12 ,170 V
Alternator Output
100 A
50 A
Alternator Output
100 A
50 A
Lighting Type
LED
Halogen
Lighting Type
LED
Halogen
Additional Features
Auto Idle
Yes
Yes
Auto Idle
Yes
Yes
Eco Mode
Yes
Yes
Eco Mode
Yes
Yes
Telematics
No
Yes
Telematics
No
Yes
Diagnostic System
Yes
Yes
Diagnostic System
Yes
Yes
CAT 321
Pros
- 136 HP Cat C3.6 engine delivers strong digging performance.
- An advanced electrohydraulic system improves cycle time.
- Eco Mode and Intelligent ECM help reduce fuel consumption
Tata Hitachi ZAXIS 650H
Pros
- Good mid‑to‑large class excavator – Around 395 HP with ~58 t operating weight offers strong performance in heavy construction and mining tasks.
- High hydraulic capacity – Total main pump output ~868 L/min supports powerful digging and attachment operation.
- Solid reach and working range – Nearly 11.3 m ground reach and ~7+ m dig depth suits trenching, excavation, and loading.
