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Grove RT990

Series: Grove Rough Terrain Crane

The photo shows the RT58E from the same series. Source: https://www.technikboerse.com/gebraucht/hebebuehne-arbeitsbu

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The RT990 from Grove is part of the Grove Rough Terrain Crane series. The engine delivers 284.2 hp (209 kW). Torque is 1,026.4 Nm. Rated speed is 2,100 rpm. The unladen weight is 61,870 kg. Ground clearance is 737.6 mm. The tank holds 378.5 litres. The gearbox has 6 forward gears. There are also 6 reverse gears. Maximum torque is reached at 1,400 rpm. The hydraulic tank holds 1,419.5 litres. The electrical system runs on 24 V. The engine fitted is the 6-7IT. Tyre size: 33,25x35-32PR. The Grove Rough Terrain Crane series covers 81 models. Rated output within it ranges from 106.1 to 608.3 hp; the RT990 sits in the lower part of that range with 284.2 hp. Its immediate neighbours are the RT890E below it with 278.8 hp and the RT9130E-2 above it with 304.6 hp. 338 Grove models across 8 series are on record. The model is listed under Cranes & access platforms. 16 verified figures from 1 source are on file.

Technical data

Engine

Engine model6-7ITcorrect
Power284.2 hp (209 kW)correct
Rated speed2,100 rpmcorrect
Torque1,026.4correct
Speed at max. torque1,400 rpmcorrect
Aspirationturbochargedcorrect

Dimensions and weights

Ground clearance737.6correct
Unladen weight61,870 kgcorrect

Drivetrain and chassis

Gearbox typeremote mounted powershift transmissioncorrect
Forward gears6correct
Reverse gears6correct
Tyre size33.25x35-32PRcorrect
System voltage24 Vcorrect

Working data

Hydraulic oil capacity1,419.5 lcorrect
Fuel tank capacity378.5 lcorrect

Where this model stands

Power-to-weight ratio: 3.4 kW/t (209 kW / 61.9 t)

Stronger than 55% of the mobile & rough terrain cranes in the register — out of 591 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Grove RT990 have?

The Grove RT990 delivers 284 hp.

How much does the Grove RT990 weigh?

The unladen weight is 61,870 kg.

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 16 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

GRT655

GRT655L

GRT8100

GRT880

RT1650

RT38

RT400

RT48

RT49

RT500C

RT500D

RT500DXL

Sources: [1]

Mobile crane in 3D section

Turn the model, look inside and click an assembly — each one is explained.

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