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JCB JS81 VS JCB 50Z Comparison
JCB JS81
₹ 34 L - 35 L
VS
JCB 50Z
₹ 35 L - 41 L
JCB JS81
₹34L
JCB 50Z
₹35L
Compare excavators helps you make an informed purchase decision.
JCB JS81
From ₹ 34 Lakh
JCB 50Z
From ₹ 35 Lakh
Engine
Model
Kirloskar 4R 1040 NA
Stage 3A 404D‑22 diesel
Model
Kirloskar 4R 1040 NA
Stage 3A 404D‑22 diesel
Gross Power
57 kw
35.7 kw
Gross Power
57 kw
35.7 kw
Net Power
57 kw
33.1 kw
Net Power
57 kw
33.1 kw
Engine Power
76 HP
48 HP
Engine Power
76 HP
48 HP
Engine Displacement
3000 cc
2179 cc
Engine Displacement
3000 cc
2179 cc
Number Of Cylinders
4 Nos
4 Nos
Number Of Cylinders
4 Nos
4 Nos
Rated RPM
2200 rpm
2600 rpm
Rated RPM
2200 rpm
2600 rpm
Emission Standard
BS IV
BS III
Emission Standard
BS IV
BS III
Max Torque
890 Nm
143 Nm
Max Torque
890 Nm
143 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
8050 kg
4946 kg
Operating Weight
8050 kg
4946 kg
Machine Weight
8050 kg
4946 kg
Machine Weight
8050 kg
4946 kg
Counter Weight
1873 kg
459 kg
Counter Weight
1873 kg
459 kg
Ground Pressure
35 kg
29.4 kg
Ground Pressure
35 kg
29.4 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston type
Piston pump
Main Pump Type
Variable displacement axial piston type
Piston pump
Maximum Hydraulic Flow
140.6 L/min
126 L/min
Maximum Hydraulic Flow
140.6 L/min
126 L/min
Maximum System Pressure
284 bar
240 bar
Maximum System Pressure
284 bar
240 bar
Hydraulic Oil Capacity
92 litres
100 litres
Hydraulic Oil Capacity
92 litres
100 litres
Auxiliary Hydraulic Flow
80 L/min
50 L/min
Auxiliary Hydraulic Flow
80 L/min
50 L/min
Working Range
Max Digging Depth
4080 mm
3650 mm
Max Digging Depth
4080 mm
3650 mm
Max Vertical Wall Digging Depth
4211 mm
5915 mm
Max Vertical Wall Digging Depth
4211 mm
5915 mm
Max Reach at Ground Level
6454 mm
5850 mm
Max Reach at Ground Level
6454 mm
5850 mm
Max Dumping Height
5401 mm
4000 mm
Max Dumping Height
5401 mm
4000 mm
Max Cutting Height
7094 mm
3200 mm
Max Cutting Height
7094 mm
3200 mm
Boom Length
3.7 m
2.700 m
Boom Length
3.7 m
2.700 m
Arm Length
1740 mm
1450 mm
Arm Length
1740 mm
1450 mm
Bucket Breakout Force
56 kN
22 kN
Bucket Breakout Force
56 kN
22 kN
Arm Tear-out Force
41 kN
38 kN
Arm Tear-out Force
41 kN
38 kN
Capacities
Fuel Tank Capacity
164 litres
76 litres
Fuel Tank Capacity
164 litres
76 litres
Hydraulic Tank Capacity
55 litres
55 litres
Hydraulic Tank Capacity
55 litres
55 litres
Cooling System Capacity
23 litres
12 litres
Cooling System Capacity
23 litres
12 litres
Engine Oil Capacity
14 litres
9 litres
Engine Oil Capacity
14 litres
9 litres
Swing Drive Oil Capacity
7 litres
6 litres
Swing Drive Oil Capacity
7 litres
6 litres
Final Drive Gear Oil Capacity
5 litres
12 litres
Final Drive Gear Oil Capacity
5 litres
12 litres
Under Carriage
Track Shoe Width
450 mm
400 mm
Track Shoe Width
450 mm
400 mm
Track Gauge
1700 mm
1550 mm
Track Gauge
1700 mm
1550 mm
Track Length on Ground
2240 mm
1985 mm
Track Length on Ground
2240 mm
1985 mm
Ground Clearance
365 mm
300 mm
Ground Clearance
365 mm
300 mm
Tail Swing Radius
1840 mm
975 mm
Tail Swing Radius
1840 mm
975 mm
Undercarriage Type
Welded crawler undercarriage with sealed/greased track chains and grease‑adjusted tensioning system
Steel crawler undercarriage (compact tracked)
Undercarriage Type
Welded crawler undercarriage with sealed/greased track chains and grease‑adjusted tensioning system
Steel crawler undercarriage (compact tracked)
Steering & Brakes
Overall Length
6230 mm
5850 mm
Overall Length
6230 mm
5850 mm
Overall Width
2220 mm
2990 mm
Overall Width
2220 mm
2990 mm
Overall Height
2722 mm
5438 mm
Overall Height
2722 mm
5438 mm
Cab Height
2720 mm
2145 mm
Cab Height
2720 mm
2145 mm
Boom Height
3.5 m
2.423 m
Boom Height
3.5 m
2.423 m
Track Width
450 mm
400 mm
Track Width
450 mm
400 mm
Performances
Travel Speed
5.1 km/h
4.6 km/h
Travel Speed
5.1 km/h
4.6 km/h
Swing Speed
12.5 rpm
11 rpm
Swing Speed
12.5 rpm
11 rpm
Gradeability
60 %
35 %
Gradeability
60 %
35 %
Drawbar Pull
55 kN
35.7 kN
Drawbar Pull
55 kN
35.7 kN
Bucket And Attachments
Bucket Capacity
0.32 Cu.m
0.22 Cu.m
Bucket Capacity
0.32 Cu.m
0.22 Cu.m
Bucket Options
0.24 - 0.32
0.14 - 0.22
Bucket Options
0.24 - 0.32
0.14 - 0.22
Attachment Compatibility
Standard auxiliary circuits
Standard mini excavator attachments
Attachment Compatibility
Standard auxiliary circuits
Standard mini excavator attachments
Cabin And Controls
Cabin AC
No
Yes
Cabin AC
No
Yes
Display Type
LCD Monitor
Intelligent display with dial throttle
Display Type
LCD Monitor
Intelligent display with dial throttle
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Suspension Seat
Adjustable suspension seat
Seat Type
Suspension Seat
Adjustable suspension seat
Noise Level
75 dB(A)
75 dB(A)
Noise Level
75 dB(A)
75 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
12 V
12 V
Battery
12 V
12 V
Alternator Output
85 A
85 A
Alternator Output
85 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
Yes
Yes
Telematics
Yes
Yes
Diagnostic System
Yes
Yes
Diagnostic System
Yes
Yes
JCB JS81
Pros
- Capable of ~7.1 m digging height and ~6.4 m reach — good for site work, trenches, and moderate depth excavation.
- Powered by ~76 HP Kirloskar engine with robust bucket/dipper tear‑out forces, delivering decent performance vs competitors.
- JCB has extensive dealer/service coverage in India, making parts and support easier compared to some smaller brands.
JCB 50Z
Pros
- Compact & zero tail swing — Excellent for narrow/urban sites, reduces risk of clipping obstacles.
- Strong digging & reach for class — ~5.8 m reach and ~3.5 m depth give versatility for small to medium jobs.
- Comfort & convenience features — Optional AC cabin, adjustable suspension seat, intelligent display, auto idle & one‑touch idle, and LiveLink telematics.
