Liebherr LTM1250-6.1
Series: Liebherr All Terrain Crane
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Liebherr LTM mobile cranes – from Ehingen, world market leader since the 1980s: the type code 1 plus capacity, axles and generation, from LTM 1025 to LTM 11200-9.1
Liebherr has built mobile cranes since 1969 at its Ehingen plant on the Danube and has been the world's largest maker since the 1980s; the code LTM stands for Liebherr Teleskop-Mobilkran, and the type code is a formula: the leading 1 is a series identifier, the following digits give the maximum capacity in tonnes – LTM 1025 lifts 25 t, LTM 1090 90 t, LTM 1300 300 t, LTM 1500 500 t, LTM 11200 1,200 t. After the hyphen come axle count and generation: LTM 1100-5.2 is a 100-tonner on five axles in the second generation, LTM 11200-9.1 the 1,200-tonner on nine axles, for years the world's strongest telescopic crane. Older models carry the generation suffix as /1 or /2 (LTM 1090/2), L marks the long-boom version; the notes 50M and 84M on the LTM 1500 give the boom length in metres.
Read on 3 more paragraphs
The register lists 21 versions with 170 to 507.1 kW from six- and eight-cylinders of 9,960 to 16,162 cm³ – Liebherr's own diesel engines from the Bulle plant – torque from 363 to 3,186 Nm at 1,900 to 2,300 rpm and service weights from 42,000 to 71,750 kg; the twelve-tonne axle load of European roads limits the travel weight, and on the big cranes ballast and boom sections travel separately.
Liebherr's hallmarks are the single-engine drive with mechanical through-drive to the superstructure, the Telematik telescoping system with a single cylinder for all sections and the LICCON control system, which has monitored the crane by computer since 1986.
Used LTMs are the most value-stable cranes on the market; when buying, operating hours for travel and crane duty, the condition of telescopic boom and locking, slew ring, outriggers, ropes and controls and a complete inspection history are what count.
Sources: SpecCodex register, model data: Liebherr LTM, Liebherr LTM Mobilkrane (manufacturer)
Technical data
Engine
| Power | 620.5 hp (450 kW)correct |
|---|---|
| Rated speed | 1,900 rpmcorrect |
| Torque | 1,140.1 Nmcorrect |
| Speed at max. torque | 1,500 rpmcorrect |
| Cylinders | 8correct |
| Displacement | 16,162 cm³correct |
Dimensions and weights
| Wheelbase | 1,058 mmcorrect |
|---|---|
| Ground clearance | 530.4 mmcorrect |
| Unladen weight | 71,750 kgcorrect |
| Gross vehicle weight | 72,000 kgcorrect |
Drivetrain and chassis
| Forward gears | 12correct |
|---|---|
| Reverse gears | 2correct |
| Wheels | 12correct |
| Tyre size | 385/95 R 25correct |
| Top speed | 80 km/hcorrect |
Other data
| System voltage | 24 Vcorrect |
|---|
Where this model stands
Power-to-weight ratio: 6.3 kW/t (450 kW / 71.8 t)
Stronger than 97% of the mobile & rough terrain cranes in the register — out of 723 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Liebherr LTM1250-6.1 have?
The Liebherr LTM1250-6.1 delivers 620 hp.
How much does the Liebherr LTM1250-6.1 weigh?
The unladen weight is 71,750 kg.
What is the gross vehicle weight of the Liebherr LTM1250-6.1?
72,000 kg.
What engine does the Liebherr LTM1250-6.1 have?
8 cylinders, 16,162 cm³ displacement.
How fast does the Liebherr LTM1250-6.1 go?
Top speed is 80 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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 20 individual figures for this model. They come from 3 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Other models in this series
LTM1025
LTM1055/1
LTM1070
LTM1080-1L
LTM1090
LTM1090/2
LTM1095-5.1
LTM1100-5.1
LTM1100-5.2
LTM1120
LTM1120/1
LTM1160
Sources: RDW — Dutch national vehicle register (retrieved August 2026) · RitchieSpecs equipment specifications (retrieved August 2026) · How we check the data
Mobile crane in 3D section
Turn the model, look inside and click an assembly — each one is explained.
