The JCB 55Z-1 is a compact zero-tail-swing mini excavator designed for construction, utility, landscaping, and site preparation work. It is part of JCB's 5-ton class mini excavator range and is built for operation in confined spaces where reduced rear overhang is important. The machine typically features a conventional boom and dipper arrangement, hydraulic controls, and a tracked undercarriage for stability and traction. The 55Z-1 is commonly used for digging, trenching, grading, and material handling. Its size and configuration make it suitable for urban job sites, roadwork, and residential projects requiring maneuverability and efficient excavation performance.
Blades
JCB 55Z-1 Mini Excavator Blades specifications
Approach angle
31 degrees
Blade Height
15.80 in (40.13 cm)
Blade Width
6.50 ft (1.98 m)
Dig depth (below ground)
1.60 ft (0.49 m)
Maximum height
1.50 ft (0.46 m)
Boom
JCB 55Z-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 (1,590.80 kg)
Dipper rotation
126 degrees
Dipper tearout
1,978.40 lbs (897.39 kg)
Slew speed
7.9 rpm
Boom/Stick Excavator Option 1
JCB 55Z-1 Mini Excavator Boom/Stick Excavator Option 1 specifications
Max Digging Height
18.60 ft (5.67 m)
Max Digging Reach
20.10 ft (6.13 m)
Max Digging Reach on Ground
19.70 ft (6.00 m)
Max.Dumping Height
14.10 ft (4.30 m)
Maximum digging depth - dozer down
12.70 ft (3.87 m)
Maximum digging depth - dozer up
11.90 ft (3.63 m)
Maximum height to dipper nose pivot pin
16.40 ft (5.00 m)
Maximum vertical wallcut depth
6.80 ft (2.07 m)
Minimum front swing radius (no offset)
8.70 ft (2.65 m)
Capacities
JCB 55Z-1 Mini Excavator Capacities specifications
Engine coolant
3.20 gal (12.11 l)
Engine Oil
2.50 gal (9.46 l)
Fuel Tank
20.10 gal (76.08 l)
Hydraulic system
26.50 gal (100.30 l)
Hydraulic Tank
14.60 gal (55.26 l)
Dimensions
JCB 55Z-1 Mini Excavator Dimensions specifications
Cab height
2,551.00 mm (100.43 in)
Cab length
341.10 gal (1,291.06 l)
Cab width
40.20 in (102.11 cm)
Ground Clearance
1.00 ft (0.30 m)
Height - Top of Cab
8.40 ft (2.56 m)
Overall width of superstructure
6.10 ft (1.86 m)
Tail Swing Radius
3.30 ft (1.01 m)
Track Gauge
5.10 ft (1.55 m)
Transport length
217.30 in (551.94 cm)
Undercarriage Overall Length
8.20 ft (2.50 m)
Width Over Tracks
3.30 ft (1.01 m)
Engine
JCB 55Z-1 Mini Excavator Engine specifications
Alternator
85 amps
Cooling system
Water cooled
Displacement
132,970.80 cu in (2,179,005.83 cu cm)
Engine Model
Stage 3A 404D-22
Fuel
Diesel
Gross Power
35.70 hp (26.62 kw)
Net Power
14.50 hp (10.81 kw)
Hydraulic System
JCB 55Z-1 Mini Excavator Hydraulic System specifications
Auxiliary hydraulic flow
23.80 gpm (90.08 lpm)
Excavator/track main relief
265 bar
Nominal output
33.30 gpm (126.04 lpm)
Slew main relief
216 bar
Operating Specifications
JCB 55Z-1 Mini Excavator Operating Specifications specifications
Operating Voltage
12 V
Operating Weight
11,830.10 lbs (5,366.05 kg)
Performance
JCB 55Z-1 Mini Excavator Performance specifications
Travel speed low
1.90 mph (3.06 kph)
Travel Speed - High
2.90 mph (4.67 kph)
Undercarriage
JCB 55Z-1 Mini Excavator Undercarriage specifications
Number of bottom rollers per side
4
Track tension
Grease
Tractive Effort
80.50 lbs (36.51 kg)
Weights
JCB 55Z-1 Mini Excavator Weights specifications
Shipping
11,543.50 lbs (5,236.05 kg)
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