Rofa Rostocker Fahrzeugb SAP-10-15

At a length of 11,200 mm and a width of 2,540 mm, the SAP-10-15 sits in the medium-to-upper length range of heavy trailers. An unladen weight of 4,370 kg against a payload of around 15,630 kg gives a ratio typical of lightly built heavy trailers, with payload clearly above three-quarters of the gross weight. The 7,600 mm wheelbase spreads this load across two widely spaced axle points. The 1993 build year places the trailer in a generation before today's brake-assist systems.

A towing combination with a trailer of this weight requires a category CE licence. The compressed-air brake system from this period should be checked particularly carefully at the roadworthiness test, since it works to simpler standards than today's systems. Trailers of this size were often used to carry construction machinery, bulk goods or general cargo over medium to long distances.

When buying a trailer from 1993 second-hand, the compressed-air brake system, including lines and valves, belongs on a test bench, since material ageing after three decades is a real risk. The frame should be checked for bending and corrosion damage around the axle mounts, especially on a lightly built structure. Spare parts for axles and brake components on such an old trailer are often only available through specialist commercial-vehicle parts dealers or as aftermarket replacements.