Lawrence David Limited TANDEM-AXLE STEP-FRAME
Built: 2019-2020 · Series: Other models
More machines from model year 2019
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Lawrence David Tandem-Axle Step-Frame – O4-class semi-trailer with 30,000 kg gross weight, 12,000 kg unladen weight and a lowered load deck.
A step-frame semi-trailer lowers the load deck behind the neck in a step, creating extra internal height for bulky but not extremely heavy cargo, as on curtainsiders carrying palletised goods. The tandem axle group at the rear spreads the load across two closely set axles and keeps axle load balance under a shifting cargo mix.
Read on 3 more paragraphs
The Tandem-Axle Step-Frame carries a gross weight of 30,000 kg. Against an unladen weight of 12,000 kg that leaves a payload of 18,000 kg. Over a body length of 13,640 mm and a width of 2,550 mm, that load sits on four wheels and an 8,800 mm wheelbase between the kingpin and the tandem axle group.
At 30,000 kg gross weight the Tandem-Axle Step-Frame falls into EU trailer class O4, the heavy semi-trailers above 10 tonnes. Towing it requires driving licence category CE, a tractor unit with a matching fifth wheel, and the air brake system standard for this class.
When buying a used step-frame semi-trailer, the step in the deck itself deserves particular attention: bending forces concentrate at that point in the chassis and can show up as cracks or distortion. The tandem axles should show even tyre wear, and the load balance between the two axles should still work under an uneven cargo split. A quick check of the ramp or barn-door seals also pays off on a curtainsided step-frame.
Sources: SpecCodex-Register: Kennwerte des Modells Tandem-Axle Step-Frame
Technical data
Dimensions and weights
| Length | 13,640 mmcorrect |
|---|---|
| Width | 2,550 mmcorrect |
| Wheelbase | 8,800 mmcorrect |
| Unladen weight | 12,000 kgcorrect |
| Gross vehicle weight | 30,000 kgcorrect |
Drivetrain and chassis
| Wheels | 4correct |
|---|---|
| Top speed | 100 km/hcorrect |
Frequently asked questions
How much does the Lawrence David Limited TANDEM-AXLE STEP-FRAME weigh?
The unladen weight is 12,000 kg.
What is the gross vehicle weight of the Lawrence David Limited TANDEM-AXLE STEP-FRAME?
30,000 kg.
Up to what speed is the Lawrence David Limited TANDEM-AXLE STEP-FRAME approved?
Approved up to 100 km/h.
What are the dimensions of the Lawrence David Limited TANDEM-AXLE STEP-FRAME?
13,640 mm × 2,550 mm.
When was the Lawrence David Limited TANDEM-AXLE STEP-FRAME built?
Production years: 2019-2020.
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 9 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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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.
