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CAT 321 VS Tata Hitachi Zaxis 80 Comparison
CAT 321
₹ 54 L - 55 L
VS
Tata Hitachi Zaxis 80
₹ 33 L - 35 L
CAT 321
₹54L
Tata Hitachi Zaxis 80
₹33L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
Tata Hitachi Zaxis 80
From ₹ 33 Lakh
Engine
Model
Cat® C3.6
Isuzu CC‑4JG1 (4‑cyl diesel)
Model
Cat® C3.6
Isuzu CC‑4JG1 (4‑cyl diesel)
Gross Power
100 kw
40.5 kw
Gross Power
100 kw
40.5 kw
Net Power
129 kw
40.5 kw
Net Power
129 kw
40.5 kw
Engine Power
136 HP
55 HP
Engine Power
136 HP
55 HP
Engine Displacement
3600 cc
3331 cc
Engine Displacement
3600 cc
3331 cc
Number Of Cylinders
4 Nos
4 Nos
Number Of Cylinders
4 Nos
4 Nos
Rated RPM
2000 rpm
2200 rpm
Rated RPM
2000 rpm
2200 rpm
Emission Standard
BS IV
BS II
Emission Standard
BS IV
BS II
Max Torque
500 Nm
200 Nm
Max Torque
500 Nm
200 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
7650 kg
Operating Weight
19300 kg
7650 kg
Machine Weight
19300 kg
7650 kg
Machine Weight
19300 kg
7650 kg
Counter Weight
3650 kg
760 kg
Counter Weight
3650 kg
760 kg
Ground Pressure
60 kg
36 kg
Ground Pressure
60 kg
36 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Variable displacement piston pump
Main Pump Type
Electro‑hydraulic main control valve system
Variable displacement piston pump
Maximum Hydraulic Flow
315 L/min
178.5 L/min
Maximum Hydraulic Flow
315 L/min
178.5 L/min
Maximum System Pressure
350 bar
314 bar
Maximum System Pressure
350 bar
314 bar
Hydraulic Oil Capacity
218 litres
100 litres
Hydraulic Oil Capacity
218 litres
100 litres
Auxiliary Hydraulic Flow
120 L/min
150 L/min
Auxiliary Hydraulic Flow
120 L/min
150 L/min
Working Range
Max Digging Depth
5970 mm
4170 mm
Max Digging Depth
5970 mm
4170 mm
Max Vertical Wall Digging Depth
5360 mm
4180 mm
Max Vertical Wall Digging Depth
5360 mm
4180 mm
Max Reach at Ground Level
9150 mm
7005 mm
Max Reach at Ground Level
9150 mm
7005 mm
Max Dumping Height
6250 mm
5280 mm
Max Dumping Height
6250 mm
5280 mm
Max Cutting Height
9120 mm
7380 mm
Max Cutting Height
9120 mm
7380 mm
Boom Length
5.700 m
4.000 m
Boom Length
5.700 m
4.000 m
Arm Length
2250 mm
2120 mm
Arm Length
2250 mm
2120 mm
Bucket Breakout Force
135 kN
55 kN
Bucket Breakout Force
135 kN
55 kN
Arm Tear-out Force
119 kN
38 kN
Arm Tear-out Force
119 kN
38 kN
Capacities
Fuel Tank Capacity
370 litres
135 litres
Fuel Tank Capacity
370 litres
135 litres
Hydraulic Tank Capacity
218 litres
60 litres
Hydraulic Tank Capacity
218 litres
60 litres
Cooling System Capacity
25 litres
9.5 litres
Cooling System Capacity
25 litres
9.5 litres
Engine Oil Capacity
11 litres
12 litres
Engine Oil Capacity
11 litres
12 litres
Swing Drive Oil Capacity
6 litres
2.5 litres
Swing Drive Oil Capacity
6 litres
2.5 litres
Final Drive Gear Oil Capacity
6 litres
3 litres
Final Drive Gear Oil Capacity
6 litres
3 litres
Under Carriage
Track Shoe Width
800 mm
450 mm
Track Shoe Width
800 mm
450 mm
Track Gauge
2380 mm
1700 mm
Track Gauge
2380 mm
1700 mm
Track Length on Ground
3650 mm
2920 mm
Track Length on Ground
3650 mm
2920 mm
Ground Clearance
450 mm
360 mm
Ground Clearance
450 mm
360 mm
Tail Swing Radius
1676 mm
1720 mm
Tail Swing Radius
1676 mm
1720 mm
Undercarriage Type
Crawler — steel tracks
Steel tracked crawler undercarriage
Undercarriage Type
Crawler — steel tracks
Steel tracked crawler undercarriage
Steering & Brakes
Overall Length
9570 mm
6080 mm
Overall Length
9570 mm
6080 mm
Overall Width
2800 mm
2260 mm
Overall Width
2800 mm
2260 mm
Overall Height
3250 mm
2600 mm
Overall Height
3250 mm
2600 mm
Cab Height
3250 mm
2730 mm
Cab Height
3250 mm
2730 mm
Boom Height
3.300 m
2.200 m
Boom Height
3.300 m
2.200 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
11.3 rpm
Swing Speed
10 rpm
11.3 rpm
Gradeability
27 %
35 %
Gradeability
27 %
35 %
Drawbar Pull
150 kN
50 kN
Drawbar Pull
150 kN
50 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.2 Cu.m
Bucket Capacity
1 Cu.m
0.2 Cu.m
Bucket Options
0.8
0.2 - 0.5
Bucket Options
0.8
0.2 - 0.5
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, auger, grapple, tilt coupler
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, auger, grapple, tilt coupler
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
LCD monitor
Display Type
8 LCD Touch Screen
LCD monitor
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Adjustable suspension
Seat Type
Suspension Seat
Adjustable suspension
Noise Level
70 dB(A)
75 dB(A)
Noise Level
70 dB(A)
75 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
24 V
Battery
2X12 V
24 V
Alternator Output
100 A
65 A
Alternator Output
100 A
65 A
Lighting Type
LED
LED
Lighting Type
LED
LED
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 80
Pros
- 7 m reach and ~8.2 m cutting height help with truck loading and general excavation.
- Counted as a mid‑size excavator, it’s stable yet not too heavy for site access.
- Suitable for attachments like breakers, grapples, and augers with decent auxiliary flow (~178.5 L/min referenced).
