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JCB JZ70

Series: JCB Midi Excavator

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The JCB JZ70 is a model in the JCB Midi Excavator series. The engine delivers 43.3 kW, has 4 cylinders, with a displacement of 3,061.1 cm³. Rated speed is 2,300 rpm. The unladen weight is 7,300 kg. The tank holds 120.4 litres. The pump delivers 170.3 l/min. The hydraulic tank holds 92.4 litres. Working pressure is 300 bar. The cooling system holds 10.6 litres. The oil fill is 9.8 litres. The electrical system runs on 24 V. The engine fitted is the A-4JGI. The JCB Midi Excavator series covers 7 models. Rated output within it ranges from 19.8 to 43.3 kW; the JZ70 sits at the top of that range with 43.3 kW. Its immediate neighbours are the 8080 ZTS below it with 43 kW. 752 JCB models across 38 series are on record. The model is listed under Excavators & compaction. 13 verified figures from 1 source are on file.

Technical data

Engine

Engine modelA-4JGIcorrect
Power43.3 kWcorrect
Rated speed2,300 rpmcorrect
Cylinders4correct
Displacement3,061.1 cm³correct
Coolant capacity10.6 lcorrect
Engine oil capacity9.8 lcorrect

Dimensions and weights

Unladen weight7,300 kgcorrect

Drivetrain and chassis

System voltage24 Vcorrect

Working data

Pump flow170.3 l/mincorrect
Hydraulic oil capacity92.4 lcorrect
Hydraulic pressure300 barcorrect
Fuel tank capacity120.4 lcorrect

Where this model stands

Power-to-weight ratio: 5.9 kW/t (43 kW / 7.3 t)

Stronger than 14% 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 JCB JZ70 have?

The JCB JZ70 delivers 43.3 kW.

How much does the JCB JZ70 weigh?

The unladen weight is 7,300 kg.

What engine does the JCB JZ70 have?

4 cylinders, 3,061 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 13 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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