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CAT 321 VS Volvo EC210 Comparison

CAT 321

CAT 321

54-55L*

Volvo EC210

Volvo EC210

21-24.98L*

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CAT 321

CAT 321

54L

Volvo EC210

Volvo EC210

21L

Engine

Model
Cat® C3.6
Volvo D5E
Gross Power
100 kw
123 kw
Net Power
129 kw
115 kw
Engine Power
136 HP
137 HP
Engine Displacement
3600 cc
4700 cc
Number Of Cylinders
4 Nos
4 Nos
Rated RPM
2000 rpm
2200 rpm
Emission Standard
BS IV
BS IV
Max Torque
500 Nm
670 Nm
Fuel Type
Diesel
Diesel

Operating Weight

Operating Weight
19300 kg
20700 kg
Machine Weight
19300 kg
22800 kg
Counter Weight
3650 kg
4200 kg
Ground Pressure
60 kg
47 kg

Hydraulic System

Main Pump Type
Electro‑hydraulic main control valve system
Variable Displacement Axial Piston
Maximum Hydraulic Flow
315 L/min
424 L/min
Maximum System Pressure
350 bar
324 bar
Hydraulic Oil Capacity
218 litres
300 litres
Auxiliary Hydraulic Flow
120 L/min
180 L/min

Working Range

Max Digging Depth
5970 mm
6380 mm
Max Vertical Wall Digging Depth
5360 mm
6090 mm
Max Reach at Ground Level
9150 mm
9930 mm
Max Dumping Height
6250 mm
6650 mm
Max Cutting Height
9120 mm
9460 mm
Boom Length
5.700 m
5.700 m
Arm Length
2250 mm
2900 mm
Bucket Breakout Force
135 kN
136 kN
Arm Tear-out Force
119 kN
105 kN

Capacities

Fuel Tank Capacity
370 litres
375 litres
Hydraulic Tank Capacity
218 litres
160 litres
Cooling System Capacity
25 litres
17 litres
Engine Oil Capacity
11 litres
15 litres
Swing Drive Oil Capacity
6 litres
7 litres
Final Drive Gear Oil Capacity
6 litres
6 litres

Under Carriage

Track Shoe Width
800 mm
600 mm
Track Gauge
2380 mm
2 390 mm
Track Length on Ground
3650 mm
4 455  mm
Ground Clearance
450 mm
4 455  mm
Tail Swing Radius
1676 mm
2870 mm
Undercarriage Type
Crawler — steel tracks
Crawler – Steel Tracks

Steering & Brakes

Overall Length
9570 mm
9690 mm
Overall Width
2800 mm
2800 mm
Overall Height
3250 mm
3080 mm
Cab Height
3250 mm
2930 mm
Boom Height
3.300 m
3.500 m
Track Width
600 mm
600 mm

Performances

Travel Speed
10 km/h
5.8 km/h
Swing Speed
10 rpm
12.3 rpm
Gradeability
27 %
70 %
Drawbar Pull
150 kN
103 kN

Bucket And Attachments

Bucket Capacity
1 Cu.m
1.1 Cu.m
Bucket Options
0.8
0.8
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Breaker, Auger, Grapple

Cabin And Controls

Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
Volvo ECU monitor
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Suspension Seat
Noise Level
70 dB(A)
72 dB(A)
Safety Features
-
-

Electrical System

Battery
2X12 V
2x12 V
Alternator Output
100 A
80 A
Lighting Type
LED
LED

Additional Features

Auto Idle
Yes
Yes
Eco Mode
Yes
Yes
Telematics
No
No
Diagnostic System
Yes
Yes

CAT 321

like

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

Volvo EC210

like

Pros

  • Good mid‑size excavator for general construction, roadwork, utilities, material handling – solid at digging, trenching, lifting.
  • Adjustable/control‑flow system allows tailored performance for attachments, better fuel use and versatility.
  • Cab features (monitor with programmable flow settings, service alerts) improve productivity and ease of use.