Technical register for agricultural, construction and commercial machinery · sourced data

Hitachi ZX350LC-5N

Series: Hitachi Hydraulic Excavator

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The Hitachi Hydraulic Excavator series from Hitachi includes the ZX350LC-5N. The engine delivers 150.6 kW, with a displacement of 7,790.4 cm³. Rated speed is 1,900 rpm. The unladen weight is 34,590 kg. Ground clearance is 502.9 mm. The tank holds 628.4 litres. The hydraulic tank holds 181.7 litres. The cooling system holds 41.6 litres. The oil fill is 49.2 litres. The engine fitted is the 6HK1XYSA-S2. The Hitachi Hydraulic Excavator series covers 158 models. Rated output within it ranges from 42.4 to 481.7 kW; the ZX350LC-5N sits in the lower part of that range with 150.6 kW. Its immediate neighbours are the ZX270LC-3 below it with 140.2 kW and the EX300-2 above it with 155 kW. Unladen weight within it ranges from 8,143 to 108,000 kg; here the ZX350LC-5N sits in the lower part of that range with 34,590 kg. 357 Hitachi models across 24 series are on record.

Hitachi ZX – what the number and letters reveal about weight class, LC/US/W undercarriage variants and the adjustable boom option across the ZAXIS range

Hitachi codes usually start with ZX, short for the ZAXIS line. The following number places the model in an approximate operating-weight class, letters such as LC, US or W describe the undercarriage and configuration, and a dash number at the end marks the generation.

Read on 5 more paragraphs

LC marks a widened undercarriage for extra stability, US denotes ultra-short-tail models with a compact rear overhang for tight jobsites, and W marks wheeled machines. Current models run as ZAXIS-7, while older stock is still labelled -3, -5 or -6.

Alongside these sits the older EX line, such as the EX700: mechanically simpler than the ZX models, with less electronics, but built rugged for heavy continuous duty.

Alongside the one-piece monoboom, many ZX models offer a two-piece adjustable boom whose knuckle can swing sideways; this allows digging along walls or pipelines without having to square the machine itself up to them, though at somewhat lower breakout force than the rigid monoboom.

The collective entry spans small excavators from around 42 kW up to large machines above 480 kW. When buying used, check the hour meter along with the slew ring, boom-and-bucket linkage bushings and any leaks at the hydraulic cylinders.

In short: ZX plus size number plus undercarriage letter plus generation digit make up the full code, as seen on models like ZX120, ZX200 or ZX330.

Sources: SpecCodex register, model data: Hitachi Hydraulic Excavator

Technical data

Engine

Engine model6HK1XYSA-S2correct
Power150.6 kWcorrect
Rated speed1,900 rpmcorrect
Displacement7,790.4 cm³correct
Coolant capacity41.6 lcorrect
Engine oil capacity49.2 lcorrect

Dimensions and weights

Ground clearance502.9 mmcorrect
Unladen weight34,590 kgcorrect

Working data

Hydraulic oil capacity181.7 lcorrect
Fuel tank capacity628.4 lcorrect

Other data

Cab height3,105.9 mmcorrect

Where this model stands

Power-to-weight ratio: 4.4 kW/t (151 kW / 34.6 t)

Stronger than 71% of the excavators & compaction in the register — out of 1,650 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Hitachi ZX350LC-5N have?

The Hitachi ZX350LC-5N delivers 151 kW.

How much does the Hitachi ZX350LC-5N weigh?

The unladen weight is 34,590 kg.

What engine does the Hitachi ZX350LC-5N have?

7,790 cm³ displacement.

What to check before buying

  • Check the hour meter against the service records — a replaced instrument is the most common gap.
  • Compare the data plate and chassis number with the papers.
  • Check the weights in the papers against the figures here — attachments change them.
  • Load the hydraulics and watch for sag.
  • Ask about parts availability for this build year — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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This page carries 11 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.

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Other models in this series

Sources: RitchieSpecs equipment specifications (retrieved August 2026) · How we check the data

Excavator in 3D section

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