Machine models

JCB 90Z-1 specifications

Entries in this reference
Listing-entry count
1

Short answer

JCB 90Z-1: full-size excavator.

Selected configuration figures
Configuration	Documented field and quantity
90Z-1	Gross Power 73.8 hp Operating Weight 21,458 lb

90Z-1 specification matrix — Boom/Stick Option (Hex) 1
Specification	90Z-1
Max Reach Along Ground	25.73 ft
Minimum Front Swing Radius (No Offset)	7.51 ft
Minimum Front Swing Radius (Fully Offset)	6.49 ft
Max Digging Reach	26.22 ft
Maximum Height To Dipper Nose Pivot Pin	24.19 ft
Maximum Vertical Wallcut Depth	12.87 ft
Max.Dumping Height	21.13 ft
Maximum Digging Depth – Dozer Down	15.14 ft
Maximum Digging Depth – Dozer Up	15.17 ft

Dimensions and weight
Specification	90Z-1
Length Of Track On Ground	7.63 ft
Ground Clearance	1.15 ft
Height To Top Of Cab	8.88 ft
Tail Swing Radius	3.76 ft
Track Gauge	6.07 ft
Width Over Tracks	7.55 ft
Overall Width Of Superstructure	7.18 ft
Removal Counterweight Clearance	2.5 ft
Cab Height	61.19 in

Undercarriage
Specification	90Z-1
Tractive Effort	143.31 lb
Number Of Track Rollers Per Side	5
Track Tension	Grease

Engine
Specification	90Z-1
Fuel	Diesel
Starter Motor	2 KW
Engine Model	KDI 2504 TCR
Gross Power	73.8 hp
Cooling System	Water cooled
Net Power	70.3 hp
Power Measured @	2,000 rpm
Displacement	152,559 cu in
Torque Measured @	1,500 rpm
Alternator	80 amps

Operational
Specification	90Z-1
Operating Weight	21,458 lb
Fuel Capacity	29.6 gal
Cooling System Fluid Capacity	3.2 gal
Hydraulic System Fluid Capacity	31.2 gal
Engine Oil Capacity	17.5 gal
Operational Voltage	12 V
Hydraulic Pump Flow Capacity	17.5 gpm

Performance
Specification	90Z-1
Travel Speed Low	1.6 mph
Travel Speed - High	2.9 mph
Gradeability	30 %

Blade
Specification	90Z-1
Approach Angle	27.8 degrees
Maximum Height	1.6 ft
Dig Depth (Below Ground)	1.6 ft
Reach In Front Of Tracks	2.1 ft
Blade Width	2,320 mm
Blade height	18.7 in

Hydraulic System
Specification	90Z-1
Nominal Output	41.9 gpm
Slew Main Relief	226 lpm
Excavator/Track Main Relief	300 bar
Auxiliary Hydraulic Flow	50.2 gpm

Boom
Specification	90Z-1
Boom Swing Left	55 degrees
Boom Swing Right	60 degrees
Bucket Rotation	188 degrees
Dipper Rotation	122 degrees
Bucket Tearout	16,231 lb
Dipper Tearout	11,218 lb
Slew Speed	10 rpm

Ratios
Figure	90Z-1
Engine horsepower per 1,000 lb of weight	3.3
Fuel tank per engine horsepower	0.42 gal

Reference directory classification
Equipment group	full-size excavator

Where the 90Z-1 ranks in JCB's list — Scope of the captured comparison
Brand	Equipment group	Compared entry	Sort order
JCB	full-size excavator	90Z-1	Descending quantity; 1 is largest

Figure	90Z-1	Rank	Lowest in line	Highest in line
Engine power	70.3 hp	8 of 11	26.6 hp	305.0 hp
Listed weight	21,458 lb	10 of 13	14,793 lb	100,442 lb
Fuel capacity	29.6 gal	10 of 13	12.7 gal	172.0 gal
Horsepower per 1,000 lb	3.3 hp	4 of 11	1.8 hp	4.0 hp

The 90Z-1 beside its neighbours

Base version	HYDRADIG 110W	90Z-1
Engine power	90Z-1: 70.3 hp
Weight	22,505 lb	21,458 lb
Fuel capacity	41.5 gal	29.6 gal
Wheelbase	HYDRADIG 110W: 8.7 ft
Maximum digging depth	HYDRADIG 110W: 12.5 ft

History and service record of 90Z-1

Launch. JCB introduced the 90Z-1 zero tail swing compact excavator in a release dated 2 July 2015, a 9.9 ton machine with a 74 hp (55 kW) JCB by Kohler Tier 4 Final diesel, an operating weight of 18,975 lb, Bosch Rexroth valves and Nachi slew motors and track drives, added above the 9.4 ton 86C-1. JCB introduces the 90Z-1, Compact Equipment, 2 July 2015.
Production. LECTURA Specs lists the JCB 90Z-1 as built 2015 to 2020, a zero-tail-swing 8.75-ton mini excavator with 7.39 m digging depth and 7.49 m reach, launched with the 65R-1, 67C-1, 85Z-1, 86C-1 and 100C-1. JCB 90Z-1 (2015-2020), LECTURA Specs; JCB excavators 2015 spec guide, Compact Equipment.
JCB minis. JCB celebrated its 100,000th mini digger, and Construction Equipment traced the company's 75-year history. JCB unearths a mini milestone, The Manufacturer.

Used market for the 90Z-1 — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	JCB full-size excavator	1

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
90Z-1	1	2018	None shown	None shown	None shown	None shown

90Z-1: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	JCB together with the full-size excavator 90Z-1	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: JCB 90Z-1 — RitchieSpecs. Observed 2026-09-24.
Published history	Published history Source: JCB introduces the 90Z-1, Compact Equipment, 2 July 2015 — Compact Equipment. Observed 2026-09-25.
Published history	Published history Source: JCB 90Z-1 (2015-2020), LECTURA Specs — LECTURA Specs. Observed 2026-09-25.
Published history	Published history Source: JCB excavators 2015 spec guide, Compact Equipment — Compact Equipment. Observed 2026-09-25.
Published history	Published history Source: JCB unearths a mini milestone, The Manufacturer — Themanufacturer. Observed 2026-09-25.
Used-market listings	Used-market listings: MachineryTrader listings for JCB 90Z-1 — MachineryTrader. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for JCB — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

JCB 90Z-1 questions

Dated listing search without advertised prices
Date	Listing index	Equipment class	Names queried	Listings	Price observation
2026-09-24	MachineryTrader	full-size excavator	90Z-1	1	No prices shown in this snapshot

JCB 90Z-1: Configuration records

90Z-1

Specification	Source figure
Boom/Stick Option (Hex) 1
Max Reach Along Ground	25.73 ft
Minimum Front Swing Radius (No Offset)	7.51 ft
Minimum Front Swing Radius (Fully Offset)	6.49 ft
Max Digging Reach	26.22 ft
Maximum Height To Dipper Nose Pivot Pin	24.19 ft
Maximum Vertical Wallcut Depth	12.87 ft
Max.Dumping Height	21.13 ft
Maximum Digging Depth – Dozer Down	15.14 ft
Maximum Digging Depth – Dozer Up	15.17 ft
Dimensions and weight
Length Of Track On Ground	7.63 ft
Ground Clearance	1.15 ft
Height To Top Of Cab	8.88 ft
Tail Swing Radius	3.76 ft
Track Gauge	6.07 ft
Width Over Tracks	7.55 ft
Overall Width Of Superstructure	7.18 ft
Removal Counterweight Clearance	2.5 ft
Cab Height	61.19 in
Undercarriage
Tractive Effort	143.31 lb
Number Of Track Rollers Per Side	5
Track Tension	Grease
Engine
Fuel	Diesel
Starter Motor	2 KW
Engine Model	KDI 2504 TCR
Gross Power	73.8 hp
Cooling System	Water cooled
Net Power	70.3 hp
Power Measured @	2,000 rpm
Operational
Operating Weight	21,458 lb
Fuel Capacity	29.6 gal
Cooling System Fluid Capacity	3.2 gal
Hydraulic System Fluid Capacity	31.2 gal
Engine Oil Capacity	17.5 gal
Operational Voltage	12 V
Hydraulic Pump Flow Capacity	17.5 gpm
Performance
Travel Speed Low	1.6 mph
Travel Speed - High	2.9 mph
Gradeability	30 %
Blade
Approach Angle	27.8 degrees
Maximum Height	1.6 ft
Dig Depth (Below Ground)	1.6 ft
Reach In Front Of Tracks	2.1 ft
Blade Width	2,320 mm
Blade height	18.7 in
Hydraulic System
Nominal Output	41.9 gpm
Slew Main Relief	226 lpm
Excavator/Track Main Relief	300 bar
Auxiliary Hydraulic Flow	50.2 gpm
Boom
Boom Swing Left	55 degrees
Boom Swing Right	60 degrees
Bucket Rotation	188 degrees
Dipper Rotation	122 degrees
Bucket Tearout	16,231 lb
Dipper Tearout	11,218 lb
Slew Speed	10 rpm
Additional specifications
Torque Measured @	1,500 rpm
Alternator	80 amps

Source

More in JCB: JS200LC–JS260SC, HYDRADIG 110W, JS240LC–JS260NLC.

JCB 90Z-1 specifications

The 90Z-1 beside its neighbours

History and service record of 90Z-1

Sources for this page

JCB 90Z-1 questions

JCB 90Z-1: Configuration records