Used Hitachi ZX75US-3 Excavator

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Hitachi ZX75US-3 Excavator Detailed Introduction

The Hitachi ZX75US-3 is a 7-ton-class ultra-short-tail-swing midi excavator developed by Hitachi Construction Machinery, belonging to the classic Zaxis-3 product line. It is specially designed for confined-space operation scenarios, balancing high power, fuel efficiency, operator comfort and long-term reliability, making it one of the most popular compact excavators in municipal, landscaping and small construction sectors.

1. Core Specifications (Standard Configuration)

Item	Parameter
Operating Weight	7,300 – 7,600 kg (varies with bucket, counterweight and cab configuration)
Engine	Isuzu 4LE2X water-cooled 4-cylinder turbocharged diesel engine
Rated Net Power	40.5 kW (54.3 hp) @ 2,000 rpm
Emission Standard	EU Stage IIIA / US EPA Tier 3
Standard Bucket Capacity	0.28 – 0.38 m³
Bucket Digging Force (ISO)	56.9 kN
Arm Digging Force (ISO)	38.2 kN
Maximum Digging Depth	4,120 mm
Maximum Digging Height	7,410 mm
Maximum Loading Height	5,230 mm
Tail Swing Radius	1,220 mm (only 70 mm overhang beyond tracks, almost same as body width)
Swing Speed	11 rpm
Travel Speed	Low: 2.4 km/h, High: 4.5 km/h
Fuel Tank Capacity	140 L
Hydraulic Tank Capacity	90 L
Gradeability	30° (58%)

2. Key Features

2.1 Industry-leading Ultra Short Tail Swing Design

The "US" in its model name stands for Ultra Short Swing, its signature advantage: the rear overhang beyond the track is only 70mm when rotating, so it can operate freely in extremely narrow spaces such as single-lane road construction, residential area renovation, indoor demolition, and basement works, no need to frequently adjust the machine position to avoid collision with surrounding obstacles, greatly improving operation safety and efficiency in confined sites.

2.2 High-efficiency Powertrain & Hydraulic System

Matched with Hitachi’s proprietary HIOS III (Hitachi Intelligent Hydraulic System) load-sensing hydraulic system, it realizes precise control of compound actions (simultaneous digging, swinging and lifting), reduces unnecessary hydraulic pressure loss, and improves fuel efficiency by 10% compared with the previous generation model.
Equipped with optional ECO mode, which can automatically adjust power output under light-load conditions to further reduce fuel consumption, suitable for long-time low-intensity operations such as landscaping and ground leveling.

2.3 Operator Comfort & Safety

The cab is standard ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certified, which effectively protects the safety of operators in case of rollover or falling objects.
The fully enclosed cab has excellent sealing performance, the internal operating noise is only 72 dB(A), and the high-power air conditioning system can quickly adjust the internal temperature in extreme weather.
The adjustable suspension seat, short-stroke low-resistance operating joystick and large curved front glass with almost no blind area greatly reduce operator fatigue during long hours of work.
The LCD digital instrument panel displays real-time operation data (fuel consumption, operating hours, fault codes, maintenance reminders) in real time, which is convenient for operators to grasp the machine status.

2.4 High Durability & Low Maintenance Cost

The boom, arm and main frame are made of high-strength wear-resistant steel, and all pin shafts are equipped with dust-proof sealing structures, which extend the service life of structural parts by more than 20% under high-intensity operation.
All daily maintenance points (oil filter, fuel filter, air filter, oil dipstick, etc.) are arranged at ground-accessible positions, no need to climb the machine for routine maintenance.
Long maintenance intervals: engine oil replacement every 500 operating hours, hydraulic oil replacement every 4,000 operating hours, greatly reducing downtime and after-sales cost.
Optional Hitachi e-Service remote monitoring system, which supports real-time viewing of machine location, operating hours, fuel consumption and fault warning, convenient for fleet management of leasing companies.

3. Typical Application Scenarios

Urban municipal works: pipeline laying, road repair, sidewalk construction
Landscaping: tree pit digging, terrain leveling, nursery stock transplantation
Demolition works: small house demolition, indoor decoration demolition
Agricultural works: farmland ditch digging, greenhouse construction, land consolidation
Confined space works: basement construction, factory internal renovation, tunnel auxiliary construction
Utility works: power, gas and communication pipeline excavation

4. Optional Attachments

The ZX75US-3 has strong attachment compatibility, and common optional attachments include:

Hydraulic breaker, hydraulic shear
Wood/grapple grab, sorting grab
Auger drill, ripper
Tilt bucket, cleaning bucket
Road sweeper, snow plow
Quick coupler (realizes attachment replacement within 2 minutes)

Summary

The Hitachi ZX75US-3 is recognized as a benchmark product in the 7-ton compact excavator segment, especially suitable for users who often operate in narrow sites. Its low operation and maintenance cost, stable performance and high residual value make it the first choice for both individual operators and construction leasing companies.

Non flooded

No accident

Original product

Used Hitachi ZX75US-3 Excavator

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