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CAT 321 VS Tata Hitachi Zaxis 38 U Comparison
CAT 321
₹ 54 L - 55 L
VS
Tata Hitachi Zaxis 38 U
₹ 31 L - 32 L
CAT 321
₹54L
Tata Hitachi Zaxis 38 U
₹31L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
Tata Hitachi Zaxis 38 U
From ₹ 31 Lakh
Engine
Model
Cat® C3.6
Yanmar 3TNV88
Model
Cat® C3.6
Yanmar 3TNV88
Gross Power
100 kw
22 kw
Gross Power
100 kw
22 kw
Net Power
129 kw
21.5 kw
Net Power
129 kw
21.5 kw
Engine Power
136 HP
29.5 HP
Engine Power
136 HP
29.5 HP
Engine Displacement
3600 cc
1642 cc
Engine Displacement
3600 cc
1642 cc
Number Of Cylinders
4 Nos
3 Nos
Number Of Cylinders
4 Nos
3 Nos
Rated RPM
2000 rpm
2400 rpm
Rated RPM
2000 rpm
2400 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
500 Nm
105 Nm
Max Torque
500 Nm
105 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
3620 kg
Operating Weight
19300 kg
3620 kg
Machine Weight
19300 kg
3411 kg
Machine Weight
19300 kg
3411 kg
Counter Weight
3650 kg
1121 kg
Counter Weight
3650 kg
1121 kg
Ground Pressure
60 kg
32 kg
Ground Pressure
60 kg
32 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
2 × Variable displacement axial piston + 1 gear pump
Main Pump Type
Electro‑hydraulic main control valve system
2 × Variable displacement axial piston + 1 gear pump
Maximum Hydraulic Flow
315 L/min
99.6 L/min
Maximum Hydraulic Flow
315 L/min
99.6 L/min
Maximum System Pressure
350 bar
245 bar
Maximum System Pressure
350 bar
245 bar
Hydraulic Oil Capacity
218 litres
56 litres
Hydraulic Oil Capacity
218 litres
56 litres
Auxiliary Hydraulic Flow
120 L/min
40 L/min
Auxiliary Hydraulic Flow
120 L/min
40 L/min
Working Range
Max Digging Depth
5970 mm
3060 mm
Max Digging Depth
5970 mm
3060 mm
Max Vertical Wall Digging Depth
5360 mm
2580 mm
Max Vertical Wall Digging Depth
5360 mm
2580 mm
Max Reach at Ground Level
9150 mm
5080 mm
Max Reach at Ground Level
9150 mm
5080 mm
Max Dumping Height
6250 mm
3460 mm
Max Dumping Height
6250 mm
3460 mm
Max Cutting Height
9120 mm
4870 mm
Max Cutting Height
9120 mm
4870 mm
Boom Length
5.700 m
2.470 m
Boom Length
5.700 m
2.470 m
Arm Length
2250 mm
1320 mm
Arm Length
2250 mm
1320 mm
Bucket Breakout Force
135 kN
27.2 kN
Bucket Breakout Force
135 kN
27.2 kN
Arm Tear-out Force
119 kN
19 kN
Arm Tear-out Force
119 kN
19 kN
Capacities
Fuel Tank Capacity
370 litres
42 litres
Fuel Tank Capacity
370 litres
42 litres
Hydraulic Tank Capacity
218 litres
32 litres
Hydraulic Tank Capacity
218 litres
32 litres
Cooling System Capacity
25 litres
6.5 litres
Cooling System Capacity
25 litres
6.5 litres
Engine Oil Capacity
11 litres
5.5 litres
Engine Oil Capacity
11 litres
5.5 litres
Swing Drive Oil Capacity
6 litres
1 litres
Swing Drive Oil Capacity
6 litres
1 litres
Final Drive Gear Oil Capacity
6 litres
2.4 litres
Final Drive Gear Oil Capacity
6 litres
2.4 litres
Under Carriage
Track Shoe Width
800 mm
600 mm
Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
2390 mm
Track Gauge
2380 mm
2390 mm
Track Length on Ground
3650 mm
3,650 mm
Track Length on Ground
3650 mm
3,650 mm
Ground Clearance
450 mm
480 mm
Ground Clearance
450 mm
480 mm
Tail Swing Radius
1676 mm
2830 mm
Tail Swing Radius
1676 mm
2830 mm
Undercarriage Type
Crawler — steel tracks
Heavy‑duty crawler undercarriage with lubricated track rollers and idlers (standard medium‑duty excavator undercarriage)
Undercarriage Type
Crawler — steel tracks
Heavy‑duty crawler undercarriage with lubricated track rollers and idlers (standard medium‑duty excavator undercarriage)
Steering & Brakes
Overall Length
9570 mm
4640 mm
Overall Length
9570 mm
4640 mm
Overall Width
2800 mm
1740 mm
Overall Width
2800 mm
1740 mm
Overall Height
3250 mm
2470 mm
Overall Height
3250 mm
2470 mm
Cab Height
3250 mm
2470 mm
Cab Height
3250 mm
2470 mm
Boom Height
3.300 m
2.600 m
Boom Height
3.300 m
2.600 m
Track Width
600 mm
300 mm
Track Width
600 mm
300 mm
Performances
Travel Speed
10 km/h
4.3 km/h
Travel Speed
10 km/h
4.3 km/h
Swing Speed
10 rpm
9.1 rpm
Swing Speed
10 rpm
9.1 rpm
Gradeability
27 %
58 %
Gradeability
27 %
58 %
Drawbar Pull
150 kN
32 kN
Drawbar Pull
150 kN
32 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.11 Cu.m
Bucket Capacity
1 Cu.m
0.11 Cu.m
Bucket Options
0.8
0.04 – 0.11
Bucket Options
0.8
0.04 – 0.11
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Auger, Thumb, Grapple
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Auger, Thumb, Grapple
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
Analog + warning indicators
Display Type
8 LCD Touch Screen
Analog + warning indicators
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)
74 dB(A)
Noise Level
70 dB(A)
74 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
12 V
Battery
2X12 V
12 V
Alternator Output
100 A
40 A
Alternator Output
100 A
40 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 38 U
Pros
- Excellent for tight sites (small footprint) and urban construction.
- Reliable Yanmar engine with decent torque for its class.
- Dual variable pumps allow smooth implement control.
