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CAT 321 VS Tata Hitachi NX 80 Comparison
CAT 321
₹ 54 L - 55 L
VS
Tata Hitachi NX 80
₹ 45 L - 46 L
CAT 321
₹54L
Tata Hitachi NX 80
₹45L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
Tata Hitachi NX 80
From ₹ 45 Lakh
Engine
Model
Cat® C3.6
Cummins QSB6.7
Model
Cat® C3.6
Cummins QSB6.7
Gross Power
100 kw
114 kw
Gross Power
100 kw
114 kw
Net Power
129 kw
115 kw
Net Power
129 kw
115 kw
Engine Power
136 HP
120 HP
Engine Power
136 HP
120 HP
Engine Displacement
3600 cc
3788 cc
Engine Displacement
3600 cc
3788 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2000 rpm
2128 rpm
Rated RPM
2000 rpm
2128 rpm
Emission Standard
BS IV
BS IV
Emission Standard
BS IV
BS IV
Max Torque
500 Nm
872 Nm
Max Torque
500 Nm
872 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
7500 kg
Operating Weight
19300 kg
7500 kg
Machine Weight
19300 kg
7500 kg
Machine Weight
19300 kg
7500 kg
Counter Weight
3650 kg
1300 kg
Counter Weight
3650 kg
1300 kg
Ground Pressure
60 kg
45 kg
Ground Pressure
60 kg
45 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement pump
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement pump
Maximum Hydraulic Flow
315 L/min
330 L/min
Maximum Hydraulic Flow
315 L/min
330 L/min
Maximum System Pressure
350 bar
365 bar
Maximum System Pressure
350 bar
365 bar
Hydraulic Oil Capacity
218 litres
234 litres
Hydraulic Oil Capacity
218 litres
234 litres
Auxiliary Hydraulic Flow
120 L/min
120 L/min
Auxiliary Hydraulic Flow
120 L/min
120 L/min
Working Range
Max Digging Depth
5970 mm
4660 mm
Max Digging Depth
5970 mm
4660 mm
Max Vertical Wall Digging Depth
5360 mm
4761 mm
Max Vertical Wall Digging Depth
5360 mm
4761 mm
Max Reach at Ground Level
9150 mm
3752 mm
Max Reach at Ground Level
9150 mm
3752 mm
Max Dumping Height
6250 mm
4565 mm
Max Dumping Height
6250 mm
4565 mm
Max Cutting Height
9120 mm
4876 mm
Max Cutting Height
9120 mm
4876 mm
Boom Length
5.700 m
5.7 m
Boom Length
5.700 m
5.7 m
Arm Length
2250 mm
2990 mm
Arm Length
2250 mm
2990 mm
Bucket Breakout Force
135 kN
197 kN
Bucket Breakout Force
135 kN
197 kN
Arm Tear-out Force
119 kN
112 kN
Arm Tear-out Force
119 kN
112 kN
Capacities
Fuel Tank Capacity
370 litres
400 litres
Fuel Tank Capacity
370 litres
400 litres
Hydraulic Tank Capacity
218 litres
220 litres
Hydraulic Tank Capacity
218 litres
220 litres
Cooling System Capacity
25 litres
35 litres
Cooling System Capacity
25 litres
35 litres
Engine Oil Capacity
11 litres
22 litres
Engine Oil Capacity
11 litres
22 litres
Swing Drive Oil Capacity
6 litres
12 litres
Swing Drive Oil Capacity
6 litres
12 litres
Final Drive Gear Oil Capacity
6 litres
7 litres
Final Drive Gear Oil Capacity
6 litres
7 litres
Under Carriage
Track Shoe Width
800 mm
450 mm
Track Shoe Width
800 mm
450 mm
Track Gauge
2380 mm
1880 mm
Track Gauge
2380 mm
1880 mm
Track Length on Ground
3650 mm
2 290 mm
Track Length on Ground
3650 mm
2 290 mm
Ground Clearance
450 mm
385 mm
Ground Clearance
450 mm
385 mm
Tail Swing Radius
1676 mm
2 060 mm
Tail Swing Radius
1676 mm
2 060 mm
Undercarriage Type
Crawler — steel tracks
Crawler undercarriage with steel tracks, multi‑roller support (5 bottom rollers and 1 upper carrier roller per side), and grease‑adjusted track tensioning – typical for this class.
Undercarriage Type
Crawler — steel tracks
Crawler undercarriage with steel tracks, multi‑roller support (5 bottom rollers and 1 upper carrier roller per side), and grease‑adjusted track tensioning – typical for this class.
Steering & Brakes
Overall Length
9570 mm
9766 mm
Overall Length
9570 mm
9766 mm
Overall Width
2800 mm
2990 mm
Overall Width
2800 mm
2990 mm
Overall Height
3250 mm
3050 mm
Overall Height
3250 mm
3050 mm
Cab Height
3250 mm
3100 mm
Cab Height
3250 mm
3100 mm
Boom Height
3.300 m
3.5 m
Boom Height
3.300 m
3.5 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
10 km/h
5.3 km/h
Travel Speed
10 km/h
5.3 km/h
Swing Speed
10 rpm
11 rpm
Swing Speed
10 rpm
11 rpm
Gradeability
27 %
70 %
Gradeability
27 %
70 %
Drawbar Pull
150 kN
140 kN
Drawbar Pull
150 kN
140 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
3.3 Cu.m
Bucket Capacity
1 Cu.m
3.3 Cu.m
Bucket Options
0.8
3.3 - 3.5
Bucket Options
0.8
3.3 - 3.5
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Augger
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Augger
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
7 inch LCD
Display Type
8 LCD Touch Screen
7 inch LCD
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Suspension Seat
Seat Type
Suspension Seat
Suspension Seat
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
12 V
Battery
2X12 V
12 V
Alternator Output
100 A
86 A
Alternator Output
100 A
86 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 NX 80
Pros
- Good balance of power (~49 hp) and weight (~7.5 t) for urban and utility work.
- Decent bucket capacity (~0.35 m³) and reach for landscaping, digging, desilting and utility tasks.
- Intelligent hydraulic system with auto idle/auto decel features improves fuel efficiency and reduces cost.
