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Komatsu JW30-2

Series: Komatsu Pneumatic Roller

Source: https://www.truck1.eu/construction-machinery/rollers/komatsu

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The JW30-2 from Komatsu is part of the Komatsu Pneumatic Roller series. The engine delivers 21.7 hp (16 kW), has 3 cylinders, with a displacement of 1,204.4 cm³. Rated speed is 2,400 rpm. The wheelbase measures 1,902 mm. Ground clearance is 201.2 mm. Top speed is 13 km/h. The tank holds 36.3 litres. The engine fitted is the 3D78AE. Rated output across the Komatsu range ranges from 3.5 to 4,126.5 hp; the JW30-2 sits at the bottom of that range with 21.7 hp. Its immediate neighbours are the PC20-2 below it with 21.6 hp and the JV25CR-7 above it with 23.4 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Road construction. 11 verified figures from 1 source are on file.

Technical data

Engine

Engine model3D78AEcorrect
Power21.7 hp (16 kW)correct
Rated speed2,400 rpmcorrect
Cylinders3correct
Displacement1,204.4 cm³correct

Dimensions and weights

Width1,301.5correct
Wheelbase1,902correct
Ground clearance201.2correct

Drivetrain and chassis

Top speed13 km/hcorrect

Working data

Fuel tank capacity36.3 lcorrect

Frequently asked questions

How much power does the Komatsu JW30-2 have?

The Komatsu JW30-2 delivers 21.7 hp.

What engine does the Komatsu JW30-2 have?

3 cylinders, 1,204 cm³ displacement.

How fast does the Komatsu JW30-2 go?

Top speed is 13 km/h.

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.
  • 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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Sources: [1]

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