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Komatsu PC40-2 – specifications

Series: Other models

Build year not documented · Data origin: Directory data · sources

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The Komatsu PC40-2 is a Mini excavators made by Komatsu. From 2.2 litres the engine produces 26.1 kW. Unladen weight is 4,336 kg.

Komatsu PC-MR – mini excavators with short tail swing

Komatsu was founded on 13 May 1921 in Komatsu, Ishikawa Prefecture, Japan, by Meitaro Takeuchi and is the world's second-largest maker of construction and mining equipment after Caterpillar. Its PC series ranges from mini to large excavators. The MR models are zero-tail-swing mini excavators: according to trade press, the PC18MR-3 has a 715 mm tail radius and an undercarriage that narrows to 980 mm.

Read on 2 more paragraphs

Typical uses are landscaping, pipeline work, indoor demolition and small building jobs in confined spaces.

Listed in the register: Komatsu PC18MR-3, PC30MR-3 and PC45MR-3.

Sources: Wikipedia Komatsu, PlantSpecs PC18MR-3

Technical data

Engine

Engine model3D94-2Acorrect
Power26.1 kWcorrect
Displacement2,212.3 cm³correct

Dimensions and weights

Unladen weight4,336.3 kgcorrect

Where this model stands

Power-to-weight ratio: 6 kW/t (26 kW / 4.3 t)

Stronger than 79% of the mini excavators in the register — out of 400 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Komatsu PC40-2 have?

The Komatsu PC40-2 delivers 26.1 kW.

How much does the Komatsu PC40-2 weigh?

The unladen weight is 4,336 kg.

What engine does the Komatsu PC40-2 have?

2,212 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.
  • 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 4 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) · Data sources and cross-checks

Mini excavator in 3D section

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