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Smit ST 12-32 – specifications

Built: 1989 · Series: ST

Data for the version built 1989 · Data origin: Official register · sources

More machines from model year 1989

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The ST series from Smit includes the ST 12-32. Production: 1989. The vehicle is 2,500 mm wide. The unladen weight is 10,020 kg. The wheelbase measures 908 mm. Top speed is 100 km/h. The gross vehicle weight is 32,000 kg. The ST series covers 5 models. Unladen weight within it ranges from 1,920 to 10,020 kg; the ST 12-32 sits at the top of that range with 10,020 kg. Its immediate neighbours are the ST 1230 below it with 7,840 kg. Gross vehicle weight within it ranges from 4,500 to 32,000 kg; here the ST 12-32 sits at the top of that range with 32,000 kg. 50 Smit models across 2 series are on record.

Smit ST – semi-trailers and trailers from 4.5 to 32 tonnes gross weight: 5 versions, unladen weight 1,920–10,020 kg, widths up to 2,500 mm

The ST range gathers Smit trailers and semi-trailers in the register, spanning light to heavy versions. Type designations such as ST 3-6 and ST 12-32 correspond to the payload in tonnes of the respective version, while ST 1230 and ST 0306 state the same values in a different notation. Depending on version, the trailers in this range span EU vehicle categories from O3 (3.5 to 10 tonnes) to O4 (over 10 tonnes gross weight), covering several registration tiers of the heavy segment.

Read on 3 more paragraphs

The register lists here 5 versions with unladen weights from 1,920 to 10,020 kg at a gross weight of 4,500 to 32,000 kg. Widths range from 2,160 to 2,500 mm.

The wide span from 4.5 to 32 tonnes gross weight shows that the ST range does not cover a single weight class but several payload tiers under the same type designation – from a light tandem-axle trailer to a heavy multi-axle semi-trailer for freight transport.

When buying a used trailer or semi-trailer from this range, check above all the frame and axles for rust and wear, the condition of suspension and brakes, and, depending on size, the coupling, tow eye or fifth wheel; on the heavier versions it is also worth checking frame reinforcements and tyre condition. Spare parts are available through the general trailer and semi-trailer parts trade. It is also worth checking tyre age and tread depth, the function of the lighting system together with reflective markings, and proof of the periodic roadworthiness inspection.

Sources: SpecCodex register, model data: Smit ST, Zulassungsdaten RDW (Niederlande)

Technical data

Dimensions and weights

Width2,500 mmcorrect
Coupling-to-axle distance908 mmcorrect
Unladen weight10,020 kgcorrect
Gross vehicle weight32,000 kgcorrect

Drivetrain and chassis

Top speed100 km/hcorrect

Frequently asked questions

How much does the Smit ST 12-32 weigh?

The unladen weight is 10,020 kg.

What is the gross vehicle weight of the Smit ST 12-32?

32,000 kg.

Up to what speed is the Smit ST 12-32 approved?

Approved up to 100 km/h.

When was the Smit ST 12-32 built?

Production years: 1989.

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 7 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) · Data sources and cross-checks

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