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Komatsu PC45R-8

Series: Komatsu Midi Excavator

Source: https://www.komatsu.eu/de/alte-modelle/minibagger/pc45r-8 k

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The PC45R-8 from Komatsu is part of the Komatsu Midi Excavator series. The engine delivers 44.7 hp (28.9 kW), has 4 cylinders, with a displacement of 1,995.9 cm³. Torque is 118.1 Nm. Rated speed is 2,500 rpm. The unladen weight is 4,750 kg. Ground clearance is 341.4 mm. The tank holds 51.9 litres. Maximum torque is reached at 1,800 rpm. The pump delivers 129.8 l/min. The hydraulic tank holds 33.3 litres. Working pressure is 250 bar. The cooling system holds 7.6 litres. The oil fill is 8.3 litres. The electrical system runs on 24 V. The engine fitted is the 4D84E-3FA. The Komatsu Midi Excavator series covers 21 models. Rated output within it ranges from 39.9 to 69.3 hp; the PC45R-8 sits in the lower part of that range with 44.7 hp. Its immediate neighbours are the PC58UU-3 below it with 40.6 hp and the PC60-1 above it with 50.7 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Excavators & compaction. 19 verified figures from 1 source are on file.

Technical data

Engine

Engine model4D84E-3FAcorrect
Power44.7 hp (28.9 kW)correct
Rated speed2,500 rpmcorrect
Torque118.1correct
Speed at max. torque1,800 rpmcorrect
Cylinders4correct
Displacement1,995.9 cm³correct
AspirationNaturalcorrect
Coolant capacity7.6 lcorrect
Engine oil capacity8.3 lcorrect

Dimensions and weights

Ground clearance341.4correct
Unladen weight4,750 kgcorrect

Drivetrain and chassis

System voltage24 Vcorrect

Working data

Pump flow129.8 l/mincorrect
Hydraulic oil capacity33.3 lcorrect
Hydraulic pressure250 barcorrect
Fuel tank capacity51.9 lcorrect

Other data

Height2,560.3correct

Where this model stands

Power-to-weight ratio: 6.1 kW/t (29 kW / 4.8 t)

Stronger than 3% 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 Komatsu PC45R-8 have?

The Komatsu PC45R-8 delivers 44.7 hp.

How much does the Komatsu PC45R-8 weigh?

The unladen weight is 4,750 kg.

What engine does the Komatsu PC45R-8 have?

4 cylinders, 1,996 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 19 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

PC130-8

PC160LC-8

PC40 MRx

PC40MR-2

PC45MR-3

PC50MR-2

PC55MR-3

PC58UU-3

PC60-1

PC60-7

PC60L-1

PC75-1

Sources: [1]

Excavator in 3D section

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