Germany-based heavy transport specialist Kübler Spedition has designed the STB 320 high girder bridge, which boasts a significantly lower deadweight than comparable systems on the market.
Much has been written about the difficulties of moving heavy and oversize cargoes on the European road network, with it becoming increasingly difficult to secure transport permits from the authorities
In light of these increasingly stringent approval requirements, Kübler has developed a weight-optimised high girder bridge trailer, the STB 320, which has had its deadweight reduced by some 50 tonnes.
Kübler, working with compatriot trailer manufacturer TII Scheuerle, has completely redesigned a high girder bridge that sees the bridge and bogies working in a complementary system, while eliminating heavy load distribution frames that are integrated into the central chassis. The company added that the structure of the frame has been radically weight optimised; with a payload of 320 tonnes and axle loads under 14 tonnes, the STB 320 is specifically tailored to the needs of transformer transport.
In terms of the chassis, the EuroCombi L13-type design is broadly compatible with TII Scheuerle’s Intercombi range. The hydraulic support base, which is crucial for lateral stability, was significantly widened. Moreover, the six-axle central chassis with the main beam raised by 230 mm ensures a significantly larger permissible bending moment.
Kübler said that a variant of the STB 320 is already planned. Using Z-beams and various longitudinal beams, the STB 320 can be used as a tank bridge and side girder bridge, and is therefore capable of accommodating any type of load.
