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

Hitachi ZX330

Series: Hitachi Hydraulic Excavator

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The ZX330 from Hitachi is part of the Hitachi Hydraulic Excavator series. The engine delivers 184.2 kW, has 6 cylinders, with a displacement of 7,790.4 cm³. Torque is 873 Nm. Rated speed is 2,000 rpm. The unladen weight is 33,339 kg. Ground clearance is 502.9 mm. The tank holds 560.2 litres. Maximum torque is reached at 1,700 rpm. The pump delivers 580.3 l/min. The hydraulic tank holds 320.2 litres. Working pressure is 348.2 bar. The cooling system holds 35.2 litres. The oil fill is 36.3 litres. The electrical system runs on 24 V. The engine fitted is the AA-6HK1X. The Hitachi Hydraulic Excavator series covers 158 models. Rated output within it ranges from 42.4 to 481.7 kW; the ZX330 sits in the lower part of that range with 184.2 kW. Its immediate neighbours are the EX370HD-5 below it with 169.1 kW and the ZX300LC-6 above it with 185.7 kW. Unladen weight within it ranges from 8,143 to 108,000 kg; here the ZX330 sits in the lower part of that range with 33,339 kg. 357 Hitachi models across 24 series are on record.

Hitachi ZX — what the number and letters reveal about weight class

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 4 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.

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: Kennwerte der Modelle Hitachi Hydraulic Excavator, ZAXIS-7 Modellcode-Erklaerung, Hitachi Herstellerbroschuere, ZAXIS-7 Grossbagger-Broschuere, Hitachi

Technical data

Engine

Engine modelAA-6HK1Xcorrect
Power184.2 kWcorrect
Rated speed2,000 rpmcorrect
Torque873correct
Speed at max. torque1,700 rpmcorrect
Cylinders6correct
Displacement7,790.4 cm³correct
Aspirationturbocharged, intercooledcorrect
Coolant capacity35.2 lcorrect
Engine oil capacity36.3 lcorrect

Dimensions and weights

Ground clearance502.9correct
Unladen weight33,339 kgcorrect

Working data

Pump flow580.3 l/mincorrect
Hydraulic oil capacity320.2 lcorrect
Hydraulic pressure348.2 barcorrect
Fuel tank capacity560.2 lcorrect

Other data

Cab height3,121.2correct
System voltage24 Vcorrect

More machines with this engine (AA-6HK1X, 17)

Where this model stands

Power-to-weight ratio: 5.5 kW/t (184 kW / 33.3 t)

Stronger than 78% of the excavators & compaction in the register — out of 1,666 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Hitachi ZX330 have?

The Hitachi ZX330 delivers 184 kW.

How much does the Hitachi ZX330 weigh?

The unladen weight is 33,339 kg.

What engine does the Hitachi ZX330 have?

6 cylinders, 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 18 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: [1]

Excavator in 3D section

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