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CAT 321 VS JCB 35Z HD Comparison
CAT 321
₹ 54 L - 55 L
VS
JCB 35Z HD
₹ 33 L - 35 L
CAT 321
₹54L
JCB 35Z HD
₹33L
Compare excavators helps you make an informed purchase decision.
CAT 321
From ₹ 54 Lakh
JCB 35Z HD
From ₹ 33 Lakh
Engine
Model
Cat® C3.6
Perkins 403J‑17 (EU Stage V / EPA Tier 4 Final, water‑cooled diesel)
Model
Cat® C3.6
Perkins 403J‑17 (EU Stage V / EPA Tier 4 Final, water‑cooled diesel)
Gross Power
100 kw
18.9 kw
Gross Power
100 kw
18.9 kw
Net Power
129 kw
18.9 kw
Net Power
129 kw
18.9 kw
Engine Power
136 HP
25.3 HP
Engine Power
136 HP
25.3 HP
Engine Displacement
3600 cc
1662 cc
Engine Displacement
3600 cc
1662 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
BS V
Emission Standard
BS IV
BS V
Max Torque
500 Nm
91.9 Nm
Max Torque
500 Nm
91.9 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
19300 kg
3790 kg
Operating Weight
19300 kg
3790 kg
Machine Weight
19300 kg
3790 kg
Machine Weight
19300 kg
3790 kg
Counter Weight
3650 kg
1200 kg
Counter Weight
3650 kg
1200 kg
Ground Pressure
60 kg
31.3 kg
Ground Pressure
60 kg
31.3 kg
Hydraulic System
Main Pump Type
Electro‑hydraulic main control valve system
Variable displacement piston pump
Main Pump Type
Electro‑hydraulic main control valve system
Variable displacement piston pump
Maximum Hydraulic Flow
315 L/min
76 L/min
Maximum Hydraulic Flow
315 L/min
76 L/min
Maximum System Pressure
350 bar
250 bar
Maximum System Pressure
350 bar
250 bar
Hydraulic Oil Capacity
218 litres
47.5 litres
Hydraulic Oil Capacity
218 litres
47.5 litres
Auxiliary Hydraulic Flow
120 L/min
70 L/min
Auxiliary Hydraulic Flow
120 L/min
70 L/min
Working Range
Max Digging Depth
5970 mm
3190 mm
Max Digging Depth
5970 mm
3190 mm
Max Vertical Wall Digging Depth
5360 mm
1610 mm
Max Vertical Wall Digging Depth
5360 mm
1610 mm
Max Reach at Ground Level
9150 mm
5040 mm
Max Reach at Ground Level
9150 mm
5040 mm
Max Dumping Height
6250 mm
3015 mm
Max Dumping Height
6250 mm
3015 mm
Max Cutting Height
9120 mm
4570 mm
Max Cutting Height
9120 mm
4570 mm
Boom Length
5.700 m
2.450 m
Boom Length
5.700 m
2.450 m
Arm Length
2250 mm
1300 mm
Arm Length
2250 mm
1300 mm
Bucket Breakout Force
135 kN
32.4 kN
Bucket Breakout Force
135 kN
32.4 kN
Arm Tear-out Force
119 kN
22.5 kN
Arm Tear-out Force
119 kN
22.5 kN
Capacities
Fuel Tank Capacity
370 litres
50 litres
Fuel Tank Capacity
370 litres
50 litres
Hydraulic Tank Capacity
218 litres
28 litres
Hydraulic Tank Capacity
218 litres
28 litres
Cooling System Capacity
25 litres
7 litres
Cooling System Capacity
25 litres
7 litres
Engine Oil Capacity
11 litres
6.2 litres
Engine Oil Capacity
11 litres
6.2 litres
Swing Drive Oil Capacity
6 litres
7 litres
Swing Drive Oil Capacity
6 litres
7 litres
Final Drive Gear Oil Capacity
6 litres
12 litres
Final Drive Gear Oil Capacity
6 litres
12 litres
Under Carriage
Track Shoe Width
800 mm
300 mm
Track Shoe Width
800 mm
300 mm
Track Gauge
2380 mm
1400 mm
Track Gauge
2380 mm
1400 mm
Track Length on Ground
3650 mm
1590 mm
Track Length on Ground
3650 mm
1590 mm
Ground Clearance
450 mm
275 mm
Ground Clearance
450 mm
275 mm
Tail Swing Radius
1676 mm
900 mm
Tail Swing Radius
1676 mm
900 mm
Undercarriage Type
Crawler — steel tracks
Sealed steel track undercarriage with grease tensioning
Undercarriage Type
Crawler — steel tracks
Sealed steel track undercarriage with grease tensioning
Steering & Brakes
Overall Length
9570 mm
4850 mm
Overall Length
9570 mm
4850 mm
Overall Width
2800 mm
1750 mm
Overall Width
2800 mm
1750 mm
Overall Height
3250 mm
2480 mm
Overall Height
3250 mm
2480 mm
Cab Height
3250 mm
2480 mm
Cab Height
3250 mm
2480 mm
Boom Height
3.300 m
2.480 m
Boom Height
3.300 m
2.480 m
Track Width
600 mm
300 mm
Track Width
600 mm
300 mm
Performances
Travel Speed
10 km/h
4.5 km/h
Travel Speed
10 km/h
4.5 km/h
Swing Speed
10 rpm
8.3 rpm
Swing Speed
10 rpm
8.3 rpm
Gradeability
27 %
30 %
Gradeability
27 %
30 %
Drawbar Pull
150 kN
25.6 kN
Drawbar Pull
150 kN
25.6 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
0.11-0.12
Bucket Options
0.8
0.11-0.12
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Hydraulic hammer, auger, grapple (via aux hydraulics)
Attachment Compatibility
Breaker, Auger, Grapple (with auxiliary hydraulics)
Hydraulic hammer, auger, grapple (via aux hydraulics)
Cabin And Controls
Cabin AC
Yes
No
Cabin AC
Yes
No
Display Type
8 LCD Touch Screen
LCD with status
Display Type
8 LCD Touch Screen
LCD with status
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)
76 dB(A)
Noise Level
70 dB(A)
76 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
2X12 V
12 V
Battery
2X12 V
12 V
Alternator Output
100 A
85 A
Alternator Output
100 A
85 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
JCB 35Z HD
Pros
- Efficient & Compact Design — Zero‑tail swing and compact build make it ideal for working in confined urban or tight job sites.
- Good Digging Force — Strong bucket breakout force (~32.4 kN), helping with earthmoving tasks.
- Operator Features — Options like AC cabin and GPS enhance comfort and usability (though not always standard)
