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CAT 321 VS HYUNDAI Robex 35 Z-9 Comparison
CAT 321
₹ 54 L - 55 L
VS
HYUNDAI Robex 35 Z-9
₹ 31 L - 33 L
CAT 321
₹54L
HYUNDAI Robex 35 Z-9
₹31L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
HYUNDAI Robex 35 Z-9
From ₹ 31 Lakh
Engine
Model
Cat® C3.6
Yanmar 3TNV88
Model
Cat® C3.6
Yanmar 3TNV88
Gross Power
100 kw
20 kw
Gross Power
100 kw
20 kw
Net Power
129 kw
19 kw
Net Power
129 kw
19 kw
Engine Power
136 HP
27 HP
Engine Power
136 HP
27 HP
Engine Displacement
3600 cc
1,642 cc
Engine Displacement
3600 cc
1,642 cc
Number Of Cylinders
4 Nos
3 Nos
Number Of Cylinders
4 Nos
3 Nos
Rated RPM
2000 rpm
2200 rpm
Rated RPM
2000 rpm
2200 rpm
Emission Standard
BS IV
Low-emission diesel
Emission Standard
BS IV
Low-emission diesel
Max Torque
500 Nm
1100 Nm
Max Torque
500 Nm
1100 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
3750 kg
Operating Weight
19300 kg
3750 kg
Machine Weight
19300 kg
3,750 kg
Machine Weight
19300 kg
3,750 kg
Counter Weight
3650 kg
4200 kg
Counter Weight
3650 kg
4200 kg
Ground Pressure
60 kg
33.4 kg
Ground Pressure
60 kg
33.4 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Two variable displacement piston pumps + gear pump
Main Pump Type
Electro‑hydraulic main control valve system
Two variable displacement piston pumps + gear pump
Maximum Hydraulic Flow
315 L/min
2 × 38.5 L/min
Maximum Hydraulic Flow
315 L/min
2 × 38.5 L/min
Maximum System Pressure
350 bar
230 bar
Maximum System Pressure
350 bar
230 bar
Hydraulic Oil Capacity
218 litres
46 litres
Hydraulic Oil Capacity
218 litres
46 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
3150 mm
Max Digging Depth
5970 mm
3150 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
5,240 mm
Max Reach at Ground Level
9150 mm
5,240 mm
Max Dumping Height
6250 mm
7000 mm
Max Dumping Height
6250 mm
7000 mm
Max Cutting Height
9120 mm
9000 mm
Max Cutting Height
9120 mm
9000 mm
Boom Length
5.700 m
2.500 m
Boom Length
5.700 m
2.500 m
Arm Length
2250 mm
1600 mm
Arm Length
2250 mm
1600 mm
Bucket Breakout Force
135 kN
31 kN
Bucket Breakout Force
135 kN
31 kN
Arm Tear-out Force
119 kN
19 kN
Arm Tear-out Force
119 kN
19 kN
Capacities
Fuel Tank Capacity
370 litres
42 litres
Fuel Tank Capacity
370 litres
42 litres
Hydraulic Tank Capacity
218 litres
46 litres
Hydraulic Tank Capacity
218 litres
46 litres
Cooling System Capacity
25 litres
6.7 litres
Cooling System Capacity
25 litres
6.7 litres
Engine Oil Capacity
11 litres
6.7 litres
Engine Oil Capacity
11 litres
6.7 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
300 mm
Track Shoe Width
800 mm
300 mm
Track Gauge
2380 mm
1440 mm
Track Gauge
2380 mm
1440 mm
Track Length on Ground
3650 mm
2130 mm
Track Length on Ground
3650 mm
2130 mm
Ground Clearance
450 mm
304 mm
Ground Clearance
450 mm
304 mm
Tail Swing Radius
1676 mm
870 mm
Tail Swing Radius
1676 mm
870 mm
Undercarriage Type
Crawler — steel tracks
X-leg center frame with pentagonal box-section track frame
Undercarriage Type
Crawler — steel tracks
X-leg center frame with pentagonal box-section track frame
Steering & Brakes
Overall Length
9570 mm
4,790 mm
Overall Length
9570 mm
4,790 mm
Overall Width
2800 mm
1740 mm
Overall Width
2800 mm
1740 mm
Overall Height
3250 mm
2500 mm
Overall Height
3250 mm
2500 mm
Cab Height
3250 mm
870 mm
Cab Height
3250 mm
870 mm
Boom Height
3.300 m
3.500 m
Boom Height
3.300 m
3.500 m
Track Width
600 mm
300 mm
Track Width
600 mm
300 mm
Performances
Travel Speed
10 km/h
2.5 km/h
Travel Speed
10 km/h
2.5 km/h
Swing Speed
10 rpm
9.5 rpm
Swing Speed
10 rpm
9.5 rpm
Gradeability
27 %
30 %
Gradeability
27 %
30 %
Drawbar Pull
150 kN
31 kN
Drawbar Pull
150 kN
31 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.11 Cu.m
Bucket Capacity
1 Cu.m
0.11 Cu.m
Bucket Options
0.8
Standard small buckets for mini excavators
Bucket Options
0.8
Standard small buckets for mini excavators
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Auxiliary piping optional for breakers, augers, etc.
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Auxiliary piping optional for breakers, augers, etc.
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
8 LCD Touch Screen
Basic monitor (varies by region)
Display Type
8 LCD Touch Screen
Basic monitor (varies by region)
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)
94 dB(A)
Noise Level
70 dB(A)
94 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
12 V
Battery
2X12 V
12 V
Alternator Output
100 A
55 A
Alternator Output
100 A
55 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
HYUNDAI Robex 35 Z-9
Pros
- Excellent in Confined & Urban Sites
- Fuel‑Efficient & Cost‑Effective
- Comfortable & Operator‑Friendly
