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Grove CM20

Series: Grove Crawler Crane

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The CM20 from Grove is part of the Grove Crawler Crane series. The engine delivers 187.7 hp (138 kW), has 6 cylinders, with a displacement of 5,901 cm³. The engine comes from Cummins. Torque is 721 Nm. Rated speed is 2,200 rpm. The unladen weight is 25,007 kg. Top speed is 8 km/h. The tank holds 246.1 litres. Maximum torque is reached at 1,500 rpm. The hydraulic tank holds 293.4 litres. The electrical system runs on 24 V. The engine fitted is the 6BTA. Rated output across the Grove range ranges from 18.2 to 609.1 hp; the CM20 sits in the lower part of that range with 187.7 hp. Its immediate neighbours are the TM120T below it with 184.5 hp and the AT400 above it with 191.7 hp. 338 Grove models across 8 series are on record. The model is listed under Cranes & access platforms. 15 verified figures from 1 source are on file.

Technical data

Engine

Engine makeCumminscorrect
Engine model6BTAcorrect
Power187.7 hp (138 kW)correct
Rated speed2,200 rpmcorrect
Torque721correct
Speed at max. torque1,500 rpmcorrect
Cylinders6correct
Displacement5,901 cm³correct
Aspirationturbochargedcorrect

Dimensions and weights

Unladen weight25,007 kgcorrect

Drivetrain and chassis

Top speed8 km/hcorrect
System voltage24 Vcorrect

Working data

Hydraulic oil capacity293.4 lcorrect
Fuel tank capacity246.1 lcorrect

Where this model stands

Power-to-weight ratio: 5.5 kW/t (138 kW / 25 t)

Stronger than 31% of the crawler cranes in the register — out of 56 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Grove CM20 have?

The Grove CM20 delivers 188 hp.

How much does the Grove CM20 weigh?

The unladen weight is 25,007 kg.

What engine does the Grove CM20 have?

6 cylinders, 5,901 cm³ displacement.

How fast does the Grove CM20 go?

Top speed is 8 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.
  • 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 15 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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