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Grove RT870

Series: Grove Rough Terrain Crane

The photo shows the RT522 from the same series. Source: https://www.ritchielist.com/1/12-4786-13714/grove-rt522b/13e

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The RT870 from Grove is part of the Grove Rough Terrain Crane series. The engine delivers 259.8 hp (191 kW), has 6 cylinders, with a displacement of 8,300 cm³. The engine comes from Cummins. Torque is 881 Nm. Rated speed is 2,500 rpm. The unladen weight is 48,552 kg. Ground clearance is 539.5 mm. The tank holds 303.2 litres. The gearbox has 6 forward gears. There are also 6 reverse gears. Maximum torque is reached at 1,800 rpm. The hydraulic tank holds 757.1 litres. The electrical system runs on 24 V. The engine fitted is the 6CTA 8,3L. Tyre size: 33,25X29-32PR. The Grove Rough Terrain Crane series covers 81 models. Rated output within it ranges from 106.1 to 608.3 hp; the RT870 sits in the lower part of that range with 259.8 hp. Its immediate neighbours are the RT875CC below it with 253.5 hp and the GRT8100 above it with 278.8 hp. 338 Grove models across 8 series are on record. The model is listed under Cranes & access platforms. 19 verified figures from 1 source are on file.

Technical data

Engine

Engine makeCumminscorrect
Engine model6CTA 8.3Lcorrect
Power259.8 hp (191 kW)correct
Rated speed2,500 rpmcorrect
Torque881correct
Speed at max. torque1,800 rpmcorrect
Cylinders6correct
Displacement8,300 cm³correct
Aspirationturbochargedcorrect

Dimensions and weights

Ground clearance539.5correct
Unladen weight48,552 kgcorrect

Drivetrain and chassis

Gearbox typefull powershift transmissioncorrect
Forward gears6correct
Reverse gears6correct
Tyre size33.25X29-32PRcorrect
System voltage24 Vcorrect

Working data

Hydraulic oil capacity757.1 lcorrect
Fuel tank capacity303.2 lcorrect

Where this model stands

Power-to-weight ratio: 3.9 kW/t (191 kW / 48.6 t)

Stronger than 45% 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 RT870 have?

The Grove RT870 delivers 260 hp.

How much does the Grove RT870 weigh?

The unladen weight is 48,552 kg.

What engine does the Grove RT870 have?

6 cylinders, 8,300 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 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

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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