Sommer SP 18 HL
Built: 2009 · Series: SP
More machines from model year 2009
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
Sommer SP – heavy special-purpose trailers from Osnabrück: unladen weight 5,400 to 12,120 kg, gross weight 12,100 to 46,000 kg, lengths up to 13,900 mm
Sommer is a trailer manufacturer based in Osnabrück. The SP range bundles several sizes and build versions for heavy-duty haulage, recognisable from the differing digit combinations in the type designation, which distinguish the number of axles, payload class and equipment of each version. The heaviest versions in the range use several axle lines, some of them steered, to spread the high total load across the road surface.
Read on 3 more paragraphs
The register lists 6 versions with unladen weights from 5,400 to 12,120 kg, gross weights from 12,100 to 46,000 kg, lengths from 10,750 to 13,900 mm and widths from 2,500 to 2,550 mm. The span of gross weights thus reaches from vehicle class O3 well into class O4.
With gross weights of up to 46 tonnes, the SP range belongs to the heavy working equipment of special transport: construction machinery, containers, steel or precast concrete parts are carried on such trailers behind tractor units of matching pulling power over roads and building sites, often under special permits for length or weight. Such transports usually take place outside peak traffic hours and along previously agreed routes.
When buying a used heavy trailer of this class, axles, steering knuckles and the braking system matter most, along with the condition of the chassis and loading floor for cracks and deformation from overloading, the hydraulics on steered or lowerable axles, and tyres and rims; spare parts and service run directly through the manufacturer.
Sources: SpecCodex register, model data: Sommer SP
Technical data
Dimensions and weights
| Length | 13,100 mmcorrect |
|---|---|
| Width | 2,550 mmcorrect |
| Wheelbase | 9,000 mmcorrect |
| Unladen weight | 12,120 kgcorrect |
| Gross vehicle weight | 29,000 kgcorrect |
Drivetrain and chassis
| Top speed | 100 km/hcorrect |
|---|
Frequently asked questions
How much does the Sommer SP 18 HL weigh?
The unladen weight is 12,120 kg.
What is the gross vehicle weight of the Sommer SP 18 HL?
29,000 kg.
Up to what speed is the Sommer SP 18 HL approved?
Approved up to 100 km/h.
What are the dimensions of the Sommer SP 18 HL?
13,100 mm × 2,550 mm.
When was the Sommer SP 18 HL built?
Production years: 2009.
What to check before buying
- Search the frame and welds at the axle mounts — that is where cracks start.
- Check the brakes and the last inspection in the papers.
- Work the gross weight against the towing vehicle before buying.
- Compare the chassis number with the papers.
- Look at the floor, cover or body from the inside — rust does not show from outside.
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 8 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.
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
Sources: RDW — Dutch national vehicle register (retrieved August 2026) · How we check the data
Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
