Technical register for agricultural, construction and commercial machinery · sourced data
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Cuppers KO 12-30 SL

Built: 2012-2016 · Series: KO

More machines from model year 2012

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The KO series from Cuppers includes the KO 12-30 SL. Production: 2012-2016. The vehicle is 11,760 mm long and 2,550 mm wide. The unladen weight is 10,660 kg. The wheelbase measures 8,470 mm. Top speed is 100 km/h. The gross vehicle weight is 42,000 kg. The KO series covers 5 models. Unladen weight within it ranges from 5,890 to 10,660 kg; the KO 12-30 SL sits at the top of that range with 10,660 kg. Its immediate neighbours are the KO 12-20 SL below it with 9,980 kg. Gross vehicle weight within it ranges from 21,000 to 45,000 kg; here the KO 12-30 SL sits at the top of that range with 42,000 kg. 173 Cuppers models across 11 series are on record.

Cuppers KO – Dutch trailers with a gross weight rating of 21,000 to 45,000 kg: five versions, 10,470 to 11,990 mm length, 2,540 to 2,600 mm width

The KO range from Cuppers of the Netherlands gathers five versions from the KO 11-10 I through the KO 12-30 SL to the KO 15-30 SL; the I, SL and ASL suffixes mark design variants within the range. With gross weight ratings of 21 to 45 tonnes, the range spans from the lower to the upper half of class O4.

Read on 3 more paragraphs

The register lists here 5 versions with unladen weights from 5,890 to 10,660 kg and gross weight ratings from 21,000 to 45,000 kg. Lengths range from 10,470 to 11,990 mm, widths from 2,540 to 2,600 mm.

At gross weights up to 45 tonnes, the heaviest version of the KO range already counts among the large heavy-haulage trailers, while the lighter variants around 21 tonnes serve ordinary building-material and machinery transport behind medium to heavy tractor units. The comparatively narrow length span from 10.47 to 11.99 m against a more than doubled gross weight shows how much axle count and axle load differ within the range.

On a used example, check the frame and chassis rails for cracks and deformation, the axle units and suspension, the brake system with its connections, and the drawbar eye and parking support. On the heaviest version, also check the torsional stiffness of the frame, and on all versions the condition of the support legs and wheel chocks; parts for axles and brake components come from the Dutch commercial-vehicle parts trade.

Sources: SpecCodex register, model data: Cuppers KO

Technical data

Dimensions and weights

Length11,760 mmcorrect
Width2,550 mmcorrect
Wheelbase8,470 mmcorrect
Unladen weight10,660 kgcorrect
Gross vehicle weight42,000 kgcorrect

Drivetrain and chassis

Top speed100 km/hcorrect

Frequently asked questions

How much does the Cuppers KO 12-30 SL weigh?

The unladen weight is 10,660 kg.

What is the gross vehicle weight of the Cuppers KO 12-30 SL?

42,000 kg.

Up to what speed is the Cuppers KO 12-30 SL approved?

Approved up to 100 km/h.

What are the dimensions of the Cuppers KO 12-30 SL?

11,760 mm × 2,550 mm.

When was the Cuppers KO 12-30 SL built?

Production years: 2012-2016.

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.

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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

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