The JCB 18Z-1 is a compact zero-tail-swing mini excavator designed for confined job sites, landscaping, utility work, and light construction. It is part of JCB's 1.8-ton class and is commonly used where maneuverability and reduced rear overhang are important. The machine typically features a dig depth suitable for trenching, hydraulic auxiliary options for attachments, and a compact undercarriage for transport and stability. The 18Z-1 is built for operation in tight spaces while maintaining visibility and control. It is used by contractors, rental fleets, and municipal crews for excavation tasks requiring a small footprint and versatile performance.
General Specifications
JCB 18Z-1 Mini Excavator General Specifications specifications
Digging Depth
8.00 ft (2.44 m) — Starting 2025 Model Year
Digging Reach
12.80 ft (3.90 m) — Starting 2025 Model Year
Engine
23.10 hp (17.23 kw) — Starting 2025 Model Year
Operating Weight
3,856.00 lbs (1,748.75 kg) — Starting 2025 Model Year
Blade
JCB 18Z-1 Mini Excavator Blade specifications
Approach Angle
25.3 degrees
Blade Height
9.30 in (23.62 cm)
Dig Depth (Below Ground)
0.80 ft (0.24 m)
Maximum Height
0.80 ft (0.24 m)
Width
3.30 ft (1.01 m)
Boom
JCB 18Z-1 Mini Excavator Boom specifications
Boom Swing Left
75 degrees
Boom Swing Right
55 degrees
Bucket Rotation
201 degrees
Bucket Tearout
3,507.10 lbs (1,590.52 kg)
Dipper Rotation
126 degrees
Dipper Tearout
1,978.40 lbs (897.23 kg)
Slew Speed
7.9 rpm
Boom/Stick 1
JCB 18Z-1 Mini Excavator Boom/Stick 1 specifications
Max Digging Depth
7.95 ft (2.42 m)
Max Digging Height
11.67 ft (3.56 m)
Max Digging Reach
12.80 ft (3.90 m)
Max Digging Reach On Ground
12.58 ft (3.83 m)
Max.Dumping Height
8.53 ft (2.60 m)
Maximum Digging Depth – Dozer Down
7.96 ft (2.43 m)
Maximum Digging Depth – Dozer Up
7.46 ft (2.27 m)
Maximum Height To Dipper Nose Pivot Pin
10.23 ft (3.12 m)
Maximum Vertical Wallcut Depth
6.35 ft (1.94 m)
Minimum Front Swing Radius (No Offset)
4.89 ft (1.49 m)
Capacities
JCB 18Z-1 Mini Excavator Capacities specifications
Engine Coolant
1.20 gal (4.54 l)
Engine Oil
0.70 gal (2.65 l)
Fuel Tank
5.50 gal (20.82 l)
Hydraulic System
7.40 gal (28.01 l)
Hydraulic Tank
4.00 gal (15.14 l)
Dimensions
JCB 18Z-1 Mini Excavator Dimensions specifications
Cab Length
292.44 gal (1,106.89 l)
Cab Width
38.51 in (97.82 cm)
Ground Clearance
0.54 ft (0.16 m)
Overall Width Of Superstructure
3.27 ft (1.00 m)
Tail Swing Radius
3.62 ft (1.10 m)
Track Gauge
2.47 ft (0.75 m)
Transport Length
139.65 in (354.71 cm)
Undercarriage Overall Length
5.18 ft (1.58 m)
Width Over Tracks
3.22 ft (0.98 m)
Engine
JCB 18Z-1 Mini Excavator Engine specifications
Alternator
60 amps
Cooling System
Water cooled
Displacement
22.00 cu in (360.52 cu cm)
Engine Model
403D-07
Fuel
Diesel
Gross Power
15.70 hp (11.71 kw)
Max Torque
33.70 lbs ft (45.69 nm)
Net Power
14.50 hp (10.81 kw)
Starter Motor
1.2 KW
Hydraulic System
JCB 18Z-1 Mini Excavator Hydraulic System specifications
Auxiliary Hydraulic Flow
8.50 gpm (32.17 lpm)
Excavator/Track Main Relief
235 bar
Nominal Output
9.60 gpm (36.34 lpm)
Slew Main Relief
167 bar
Operational
JCB 18Z-1 Mini Excavator Operational specifications
Operating Weight
3,855.90 lbs (1,748.71 kg)
Operational Voltage
12 V
Performance
JCB 18Z-1 Mini Excavator Performance specifications
Gradeability
35 %
Travel Speed Low
1.30 mph (2.09 kph)
Undercarriage
JCB 18Z-1 Mini Excavator Undercarriage specifications
Number Of Bottom Rollers Per Side
3
Tractive Effort
29.11 lbs (13.20 kg)
Weights
JCB 18Z-1 Mini Excavator Weights specifications
Ground Bearing Pressure (Rubber Tracks)
0.8 psi
Ground Bearing Pressure (Steel Tracks)
0.8 psi
Long Dozer
19.90 lbs (9.02 kg)
Mechanical Quickhitch
21700.1 in2
Shipping
3,218.80 lbs (1,459.77 kg)
Steel Tracks
178.60 lbs (81.00 kg)
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