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CAT 321 VS SANY SY150C PRO Comparison
CAT 321
₹ 54 L - 55 L
VS
SANY SY150C PRO
₹ 40 L - 45 L
CAT 321
₹54L
SANY SY150C PRO
₹40L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
SANY SY150C PRO
From ₹ 40 Lakh
Engine
Model
Cat® C3.6
Cummins/Isuzu family
Model
Cat® C3.6
Cummins/Isuzu family
Gross Power
100 kw
75 kw
Gross Power
100 kw
75 kw
Net Power
129 kw
72 kw
Net Power
129 kw
72 kw
Engine Power
136 HP
100.5 HP
Engine Power
136 HP
100.5 HP
Engine Displacement
3600 cc
4500 cc
Engine Displacement
3600 cc
4500 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
Tier III
Emission Standard
BS IV
Tier III
Max Torque
500 Nm
420 Nm
Max Torque
500 Nm
420 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
14475 kg
Operating Weight
19300 kg
14475 kg
Machine Weight
19300 kg
14475 kg
Machine Weight
19300 kg
14475 kg
Counter Weight
3650 kg
3500 kg
Counter Weight
3650 kg
3500 kg
Ground Pressure
60 kg
35 kg
Ground Pressure
60 kg
35 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Load‑sensing variable piston pump
Main Pump Type
Electro‑hydraulic main control valve system
Load‑sensing variable piston pump
Maximum Hydraulic Flow
315 L/min
240 L/min
Maximum Hydraulic Flow
315 L/min
240 L/min
Maximum System Pressure
350 bar
320 bar
Maximum System Pressure
350 bar
320 bar
Hydraulic Oil Capacity
218 litres
180 litres
Hydraulic Oil Capacity
218 litres
180 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
5500 mm
Max Digging Depth
5970 mm
5500 mm
Max Vertical Wall Digging Depth
5360 mm
4600 mm
Max Vertical Wall Digging Depth
5360 mm
4600 mm
Max Reach at Ground Level
9150 mm
8200 mm
Max Reach at Ground Level
9150 mm
8200 mm
Max Dumping Height
6250 mm
5900 mm
Max Dumping Height
6250 mm
5900 mm
Max Cutting Height
9120 mm
8400 mm
Max Cutting Height
9120 mm
8400 mm
Boom Length
5.700 m
4.600 m
Boom Length
5.700 m
4.600 m
Arm Length
2250 mm
2600 mm
Arm Length
2250 mm
2600 mm
Bucket Breakout Force
135 kN
85 kN
Bucket Breakout Force
135 kN
85 kN
Arm Tear-out Force
119 kN
70 kN
Arm Tear-out Force
119 kN
70 kN
Capacities
Fuel Tank Capacity
370 litres
180 litres
Fuel Tank Capacity
370 litres
180 litres
Hydraulic Tank Capacity
218 litres
170 litres
Hydraulic Tank Capacity
218 litres
170 litres
Cooling System Capacity
25 litres
20 litres
Cooling System Capacity
25 litres
20 litres
Engine Oil Capacity
11 litres
14 litres
Engine Oil Capacity
11 litres
14 litres
Swing Drive Oil Capacity
6 litres
3 litres
Swing Drive Oil Capacity
6 litres
3 litres
Final Drive Gear Oil Capacity
6 litres
2.5 litres
Final Drive Gear Oil Capacity
6 litres
2.5 litres
Under Carriage
Track Shoe Width
800 mm
600 mm
Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
2200 mm
Track Gauge
2380 mm
2200 mm
Track Length on Ground
3650 mm
3 200 mm
Track Length on Ground
3650 mm
3 200 mm
Ground Clearance
450 mm
450 mm
Ground Clearance
450 mm
450 mm
Tail Swing Radius
1676 mm
2500 mm
Tail Swing Radius
1676 mm
2500 mm
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks
Steering & Brakes
Overall Length
9570 mm
7700 mm
Overall Length
9570 mm
7700 mm
Overall Width
2800 mm
2500 mm
Overall Width
2800 mm
2500 mm
Overall Height
3250 mm
2800 mm
Overall Height
3250 mm
2800 mm
Cab Height
3250 mm
2950 mm
Cab Height
3250 mm
2950 mm
Boom Height
3.300 m
2.950 m
Boom Height
3.300 m
2.950 m
Track Width
600 mm
500 mm
Track Width
600 mm
500 mm
Performances
Travel Speed
10 km/h
3.2 km/h
Travel Speed
10 km/h
3.2 km/h
Swing Speed
10 rpm
10 rpm
Swing Speed
10 rpm
10 rpm
Gradeability
27 %
37 %
Gradeability
27 %
37 %
Drawbar Pull
150 kN
110 kN
Drawbar Pull
150 kN
110 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.76 Cu.m
Bucket Capacity
1 Cu.m
0.76 Cu.m
Bucket Options
0.8
0.6-0.8
Bucket Options
0.8
0.6-0.8
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, auger, thumb, tilt‑rotator
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, auger, thumb, tilt‑rotator
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
LCD colour monitor
Display Type
8 LCD Touch Screen
LCD colour 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
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
SANY SY150C PRO
Pros
- Competitive power (~100.5 HP) and productivity for ~15 ton segment.
- PRO series typically uses modern variable‑displacement pumps with good control for bucket, boom, and travel functions.
- 0.76 m³ bucket suitable for general excavation & utility tasks
