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CAT 321 VS SANY SY375EP Comparison
CAT 321
₹ 54 L - 55 L
VS
SANY SY375EP
₹ 38 L - 50 L
CAT 321
₹54L
SANY SY375EP
₹38L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
SANY SY375EP
From ₹ 38 Lakh
Engine
Model
Cat® C3.6
Isuzu 6HK1X (common on SY375 series)
Model
Cat® C3.6
Isuzu 6HK1X (common on SY375 series)
Gross Power
100 kw
212 kw
Gross Power
100 kw
212 kw
Net Power
129 kw
200 kw
Net Power
129 kw
200 kw
Engine Power
136 HP
284 HP
Engine Power
136 HP
284 HP
Engine Displacement
3600 cc
7790 cc
Engine Displacement
3600 cc
7790 cc
Number Of Cylinders
4 Nos
6 Nos
Number Of Cylinders
4 Nos
6 Nos
Rated RPM
2000 rpm
2000 rpm
Rated RPM
2000 rpm
2000 rpm
Emission Standard
BS IV
BS IV
Emission Standard
BS IV
BS IV
Max Torque
500 Nm
1050 Nm
Max Torque
500 Nm
1050 Nm
Fuel Type
Diesel
Electric
Fuel Type
Diesel
Electric
Operating Weight
Operating Weight
19300 kg
37800 kg
Operating Weight
19300 kg
37800 kg
Machine Weight
19300 kg
31500 kg
Machine Weight
19300 kg
31500 kg
Counter Weight
3650 kg
7500 kg
Counter Weight
3650 kg
7500 kg
Ground Pressure
60 kg
68 kg
Ground Pressure
60 kg
68 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement Axial Piston (Dual Pump)
Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement Axial Piston (Dual Pump)
Maximum Hydraulic Flow
315 L/min
720 L/min
Maximum Hydraulic Flow
315 L/min
720 L/min
Maximum System Pressure
350 bar
350 bar
Maximum System Pressure
350 bar
350 bar
Hydraulic Oil Capacity
218 litres
240 litres
Hydraulic Oil Capacity
218 litres
240 litres
Auxiliary Hydraulic Flow
120 L/min
180 L/min
Auxiliary Hydraulic Flow
120 L/min
180 L/min
Working Range
Max Digging Depth
5970 mm
7155 mm
Max Digging Depth
5970 mm
7155 mm
Max Vertical Wall Digging Depth
5360 mm
6200 mm
Max Vertical Wall Digging Depth
5360 mm
6200 mm
Max Reach at Ground Level
9150 mm
9800 mm
Max Reach at Ground Level
9150 mm
9800 mm
Max Dumping Height
6250 mm
7000 mm
Max Dumping Height
6250 mm
7000 mm
Max Cutting Height
9120 mm
9900 mm
Max Cutting Height
9120 mm
9900 mm
Boom Length
5.700 m
6.500 m
Boom Length
5.700 m
6.500 m
Arm Length
2250 mm
2542 mm
Arm Length
2250 mm
2542 mm
Bucket Breakout Force
135 kN
234 kN
Bucket Breakout Force
135 kN
234 kN
Arm Tear-out Force
119 kN
210 kN
Arm Tear-out Force
119 kN
210 kN
Capacities
Fuel Tank Capacity
370 litres
600 litres
Fuel Tank Capacity
370 litres
600 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
25 litres
Engine Oil Capacity
11 litres
25 litres
Swing Drive Oil Capacity
6 litres
7 litres
Swing Drive Oil Capacity
6 litres
7 litres
Final Drive Gear Oil Capacity
6 litres
6 litres
Final Drive Gear Oil Capacity
6 litres
6 litres
Under Carriage
Track Shoe Width
800 mm
600 mm
Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
2590 mm
Track Gauge
2380 mm
2590 mm
Track Length on Ground
3650 mm
4140 mm
Track Length on Ground
3650 mm
4140 mm
Ground Clearance
450 mm
550 mm
Ground Clearance
450 mm
550 mm
Tail Swing Radius
1676 mm
3610 mm
Tail Swing Radius
1676 mm
3610 mm
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks
Steering & Brakes
Overall Length
9570 mm
11200 mm
Overall Length
9570 mm
11200 mm
Overall Width
2800 mm
3200 mm
Overall Width
2800 mm
3200 mm
Overall Height
3250 mm
3450 mm
Overall Height
3250 mm
3450 mm
Cab Height
3250 mm
3100 mm
Cab Height
3250 mm
3100 mm
Boom Height
3.300 m
3.500 m
Boom Height
3.300 m
3.500 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
10 km/h
5.4 km/h
Travel Speed
10 km/h
5.4 km/h
Swing Speed
10 rpm
9.5 rpm
Swing Speed
10 rpm
9.5 rpm
Gradeability
27 %
70 %
Gradeability
27 %
70 %
Drawbar Pull
150 kN
260 kN
Drawbar Pull
150 kN
260 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
1.9 Cu.m
Bucket Capacity
1 Cu.m
1.9 Cu.m
Bucket Options
0.8
1.6
Bucket Options
0.8
1.6
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Auger, Grapple, Ripper
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Auger, Grapple, Ripper
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
7 Inch Monitpr
Display Type
8 LCD Touch Screen
7 Inch Monitpr
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Air-Suspension Seat
Seat Type
Suspension Seat
Air-Suspension Seat
Noise Level
70 dB(A)
67 dB(A)
Noise Level
70 dB(A)
67 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
2x12 V
Battery
2X12 V
2x12 V
Alternator Output
100 A
62 A
Alternator Output
100 A
62 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 SY375EP
Pros
- Strong engine with ample torque for deep digging and heavy earthwork – ~212 kW (~284 HP) from 7.8 L engine is solid for 37-ton class.
- High breakout & crowd forces – SY375H variant has ~235 kN bucket force and ~210 kN arm force, meaning strong material penetration
- Robust for heavy excavation / quarrying / mining use – Designed as a “large” excavator with stronger components and durable build.
