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CAT 321 VS CAT 323D3 Comparison
CAT 321
₹ 54 L - 55 L
VS
CAT 323D3
₹ 44 L - 46 L
CAT 321
₹54L
CAT 323D3
₹44L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
CAT 323D3
From ₹ 44 Lakh
Engine
Model
Cat® C3.6
CAT C7.1
Model
Cat® C3.6
CAT C7.1
Gross Power
100 kw
152 kw
Gross Power
100 kw
152 kw
Net Power
129 kw
143 kw
Net Power
129 kw
143 kw
Engine Power
136 HP
151 HP
Engine Power
136 HP
151 HP
Engine Displacement
3600 cc
7010 cc
Engine Displacement
3600 cc
7010 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2000 rpm
1700 rpm
Rated RPM
2000 rpm
1700 rpm
Emission Standard
BS IV
UN R96 Stage II
Emission Standard
BS IV
UN R96 Stage II
Max Torque
500 Nm
900 Nm
Max Torque
500 Nm
900 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
22800 kg
Operating Weight
19300 kg
22800 kg
Machine Weight
19300 kg
22800 kg
Machine Weight
19300 kg
22800 kg
Counter Weight
3650 kg
1020 kg
Counter Weight
3650 kg
1020 kg
Ground Pressure
60 kg
46.8 kg
Ground Pressure
60 kg
46.8 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement
Maximum Hydraulic Flow
315 L/min
430 L/min
Maximum Hydraulic Flow
315 L/min
430 L/min
Maximum System Pressure
350 bar
343 bar
Maximum System Pressure
350 bar
343 bar
Hydraulic Oil Capacity
218 litres
276 litres
Hydraulic Oil Capacity
218 litres
276 litres
Auxiliary Hydraulic Flow
120 L/min
129 L/min
Auxiliary Hydraulic Flow
120 L/min
129 L/min
Working Range
Max Digging Depth
5970 mm
6300 mm
Max Digging Depth
5970 mm
6300 mm
Max Vertical Wall Digging Depth
5360 mm
4351 mm
Max Vertical Wall Digging Depth
5360 mm
4351 mm
Max Reach at Ground Level
9150 mm
6431 mm
Max Reach at Ground Level
9150 mm
6431 mm
Max Dumping Height
6250 mm
6962 mm
Max Dumping Height
6250 mm
6962 mm
Max Cutting Height
9120 mm
7542 mm
Max Cutting Height
9120 mm
7542 mm
Boom Length
5.700 m
5.7 m
Boom Length
5.700 m
5.7 m
Arm Length
2250 mm
2900 mm
Arm Length
2250 mm
2900 mm
Bucket Breakout Force
135 kN
76 kN
Bucket Breakout Force
135 kN
76 kN
Arm Tear-out Force
119 kN
65 kN
Arm Tear-out Force
119 kN
65 kN
Capacities
Fuel Tank Capacity
370 litres
410 litres
Fuel Tank Capacity
370 litres
410 litres
Hydraulic Tank Capacity
218 litres
138 litres
Hydraulic Tank Capacity
218 litres
138 litres
Cooling System Capacity
25 litres
28 litres
Cooling System Capacity
25 litres
28 litres
Engine Oil Capacity
11 litres
18 litres
Engine Oil Capacity
11 litres
18 litres
Swing Drive Oil Capacity
6 litres
6 litres
Swing Drive Oil Capacity
6 litres
6 litres
Final Drive Gear Oil Capacity
6 litres
5 litres
Final Drive Gear Oil Capacity
6 litres
5 litres
Under Carriage
Track Shoe Width
800 mm
600 mm
Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
2380 mm
Track Gauge
2380 mm
2380 mm
Track Length on Ground
3650 mm
4460 mm
Track Length on Ground
3650 mm
4460 mm
Ground Clearance
450 mm
450 mm
Ground Clearance
450 mm
450 mm
Tail Swing Radius
1676 mm
2750 mm
Tail Swing Radius
1676 mm
2750 mm
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks
Steering & Brakes
Overall Length
9570 mm
9460 mm
Overall Length
9570 mm
9460 mm
Overall Width
2800 mm
2980 mm
Overall Width
2800 mm
2980 mm
Overall Height
3250 mm
3050 mm
Overall Height
3250 mm
3050 mm
Cab Height
3250 mm
2970 mm
Cab Height
3250 mm
2970 mm
Boom Height
3.300 m
3.050 m
Boom Height
3.300 m
3.050 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
10 km/h
5.8 km/h
Travel Speed
10 km/h
5.8 km/h
Swing Speed
10 rpm
11.88 rpm
Swing Speed
10 rpm
11.88 rpm
Gradeability
27 %
70 %
Gradeability
27 %
70 %
Drawbar Pull
150 kN
210 kN
Drawbar Pull
150 kN
210 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
1.2 Cu.m
Bucket Capacity
1 Cu.m
1.2 Cu.m
Bucket Options
0.8
1.05
Bucket Options
0.8
1.05
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
normal digging and loading.
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
normal digging and loading.
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
203
Display Type
8 LCD Touch Screen
203
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Mechanically adjustable with headrest & armrests
Seat Type
Suspension Seat
Mechanically adjustable with headrest & armrests
Noise Level
70 dB(A)
72 dB(A)
Noise Level
70 dB(A)
72 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
2 × 12 V V
Battery
2X12 V
2 × 12 V V
Alternator Output
100 A
100 A
Alternator Output
100 A
100 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
CAT 323D3
Pros
- High Performance & Productivity
- Large bucket capacity (≈1.20 m³)
- Fuel Efficiency
