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CAT 321 VS CAT 345 GC Comparison
CAT 321
₹ 54 L - 55 L
VS
CAT 345 GC
₹ 50 L - 55.01 L
CAT 321
₹54L
CAT 345 GC
₹50L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
CAT 345 GC
From ₹ 50 Lakh
Engine
Model
Cat® C3.6
Cat® C9.3B
Model
Cat® C3.6
Cat® C9.3B
Gross Power
100 kw
259 kw
Gross Power
100 kw
259 kw
Net Power
129 kw
258 kw
Net Power
129 kw
258 kw
Engine Power
136 HP
346 HP
Engine Power
136 HP
346 HP
Engine Displacement
3600 cc
9300 cc
Engine Displacement
3600 cc
9300 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2000 rpm
1900 rpm
Rated RPM
2000 rpm
1900 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
500 Nm
1550 Nm
Max Torque
500 Nm
1550 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
43200 kg
Operating Weight
19300 kg
43200 kg
Machine Weight
19300 kg
43200 kg
Machine Weight
19300 kg
43200 kg
Counter Weight
3650 kg
9000 kg
Counter Weight
3650 kg
9000 kg
Ground Pressure
60 kg
68 kg
Ground Pressure
60 kg
68 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Hydraulic piston pumps (dual)
Main Pump Type
Electro‑hydraulic main control valve system
Hydraulic piston pumps (dual)
Maximum Hydraulic Flow
315 L/min
630 L/min
Maximum Hydraulic Flow
315 L/min
630 L/min
Maximum System Pressure
350 bar
350 bar
Maximum System Pressure
350 bar
350 bar
Hydraulic Oil Capacity
218 litres
423 litres
Hydraulic Oil Capacity
218 litres
423 litres
Auxiliary Hydraulic Flow
120 L/min
220 L/min
Auxiliary Hydraulic Flow
120 L/min
220 L/min
Working Range
Max Digging Depth
5970 mm
7200 mm
Max Digging Depth
5970 mm
7200 mm
Max Vertical Wall Digging Depth
5360 mm
5390 mm
Max Vertical Wall Digging Depth
5360 mm
5390 mm
Max Reach at Ground Level
9150 mm
11290 mm
Max Reach at Ground Level
9150 mm
11290 mm
Max Dumping Height
6250 mm
7210 mm
Max Dumping Height
6250 mm
7210 mm
Max Cutting Height
9120 mm
10540 mm
Max Cutting Height
9120 mm
10540 mm
Boom Length
5.700 m
6.900 m
Boom Length
5.700 m
6.900 m
Arm Length
2250 mm
2900 mm
Arm Length
2250 mm
2900 mm
Bucket Breakout Force
135 kN
235 kN
Bucket Breakout Force
135 kN
235 kN
Arm Tear-out Force
119 kN
180 kN
Arm Tear-out Force
119 kN
180 kN
Capacities
Fuel Tank Capacity
370 litres
600 litres
Fuel Tank Capacity
370 litres
600 litres
Hydraulic Tank Capacity
218 litres
186 litres
Hydraulic Tank Capacity
218 litres
186 litres
Cooling System Capacity
25 litres
40 litres
Cooling System Capacity
25 litres
40 litres
Engine Oil Capacity
11 litres
32 litres
Engine Oil Capacity
11 litres
32 litres
Swing Drive Oil Capacity
6 litres
13.5 litres
Swing Drive Oil Capacity
6 litres
13.5 litres
Final Drive Gear Oil Capacity
6 litres
8 litres
Final Drive Gear Oil Capacity
6 litres
8 litres
Under Carriage
Track Shoe Width
800 mm
600 mm
Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
2 740 mm
Track Gauge
2380 mm
2 740 mm
Track Length on Ground
3650 mm
5 030 mm
Track Length on Ground
3650 mm
5 030 mm
Ground Clearance
450 mm
520 mm
Ground Clearance
450 mm
520 mm
Tail Swing Radius
1676 mm
3530 mm
Tail Swing Radius
1676 mm
3530 mm
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks (standard heavy‑duty excavator undercarriage) CAT design
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks (standard heavy‑duty excavator undercarriage) CAT design
Steering & Brakes
Overall Length
9570 mm
11600 mm
Overall Length
9570 mm
11600 mm
Overall Width
2800 mm
3340 mm
Overall Width
2800 mm
3340 mm
Overall Height
3250 mm
3230 mm
Overall Height
3250 mm
3230 mm
Cab Height
3250 mm
3230 mm
Cab Height
3250 mm
3230 mm
Boom Height
3.300 m
3.121 m
Boom Height
3.300 m
3.121 m
Track Width
600 mm
2740 mm
Track Width
600 mm
2740 mm
Performances
Travel Speed
10 km/h
5.2 km/h
Travel Speed
10 km/h
5.2 km/h
Swing Speed
10 rpm
8.27 rpm
Swing Speed
10 rpm
8.27 rpm
Gradeability
27 %
35 %
Gradeability
27 %
35 %
Drawbar Pull
150 kN
292 kN
Drawbar Pull
150 kN
292 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
2.41 Cu.m
Bucket Capacity
1 Cu.m
2.41 Cu.m
Bucket Options
0.8
2.1/2.2/2.3
Bucket Options
0.8
2.1/2.2/2.3
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Pin-on and quick coupler options supported
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Pin-on and quick coupler options supported
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
LCD monitor (regional fitted)
Display Type
8 LCD Touch Screen
LCD monitor (regional fitted)
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Adjustable operator seat
Seat Type
Suspension Seat
Adjustable operator seat
Noise Level
70 dB(A)
106 dB(A)
Noise Level
70 dB(A)
106 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
2X12 V
Battery
2X12 V
2X12 V
Alternator Output
100 A
80 A
Alternator Output
100 A
80 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
CAT 345 GC
Pros
- Designed as the GC (“General Construction”) variant with efficiency focus vs heavier models like 345C or 349.
- Good reach and depth for large trenching, earthmoving and general excavation work.
- 630 L/min flow supports heavy implement movement and attachments smoothly.
