Haan Other models

The register lists here 7 versions with unladen weights from 3,910 to 6,990 kg, gross weights from 38,000 to 45,000 kg, lengths from 9,560 to 13,800 mm and widths from 2,450 to 2,550 mm.

Trailers of this weight class belong to the highest trailer class O4 and carry bulk goods, building materials and machinery in heavy-haul traffic; the low unladen weight relative to the gross weight allows a high payload on every run. Such trailers usually run as semi-trailers or tandem and tridem trailers behind tractor units of the upper power class, and in haulage fleets they tend to be assigned to specific heavy-haul routes, where the permitted combination weight matters more than sheer load volume.

On used trailers, frame and welds, the condition of axles, suspension and brakes, tyre tread and the tightness and wear of the sides on tipper or skip versions count; spare parts for axles, brakes and the coupling run through specialist commercial-vehicle workshops and axle makers such as BPW or SAF. A look at the service history shows whether brakes and suspension were maintained in line with the load carried.