This Goldhofer STZ-H6-57/80A is a used low-loader semi-trailer — sometimes referred to as a step-deck trailer or heavy-haulage trailer — designed specifically for the transport of rail wagons and similarly oversized, heavy loads. Goldhofer is a well-established German manufacturer with a long-standing reputation in the specialised heavy transport sector, producing semi-trailers, modular platform vehicles, and related equipment for the construction, energy, rail, and heavy industry sectors. This example is located in Germany and is offered at €129,890.
The trailer is rated for two operating regimes. At 80 km/h the permitted saddle load is 23,000 kg, the rear axle load is 10,000 kg, the gross weight is 83,000 kg, and the usable payload is 52,500 kg. At 65 km/h these figures rise to a saddle load of 26,000 kg, a rear axle load of 11,000 kg, a gross weight of 92,000 kg, and a payload of 61,500 kg. The trailer's own weight without accessories is 30,500 kg.
The hydraulic gooseneck carries outer-lying main beams and is hydraulically liftable and lowerable. It is 4,000 mm long, 2,480 mm wide, and built to a structural height of just 235 mm — a flat construction specifically noted as a hydromechanical forced-steering arrangement in flat-deck form with adjustable guide elements and THP steering cylinders. The fifth-wheel height stands at 1,350 mm, with a front loading roller distance of 1,420 mm and a rear loading roller distance of 2,700 mm. The kingpin is 3.5 inches in diameter. The gooseneck front corners are angled at 45 degrees and the overall body angle is 10 degrees. The deck surface is 50 mm spruce timber boarding. The saddle supports are mechanical. Width with side boards fitted is 2,550 mm. The gooseneck is equipped with mechanical drop-tube supports and a hydraulic support cylinder, and the steering is a two-circuit hydraulic system.
The main loading platform is a flat-deck platform type, fixed in height (non-liftable), measuring 13,000 mm in length and 3,000 mm in width. The deck surface combines steel sheet and 50 mm spruce boarding. There are no wheel recesses and no width extensions on the main platform. The platform is telescopically extendable as a single-stage outer-and-inner tube construction, with a 1,070 mm fixed front section. The extension length is 10,000 mm, giving a total loading length of up to 19,000 mm at full extension. The loaded deck height on the outer tube frame is approximately 815 mm (±130 mm), and on the integrated rail elements approximately 790 mm (±130 mm). Extension stages are locked by spring-accumulator cylinders and conical bushings.
A central feature of this trailer is its wagon-transport specification. The fixed forward section of the loading platform incorporates a pin-and-clevis coupling for connecting tank-bridge extension beams. Welded-on rail track sections provide running tracks in two gauges: 1,000 mm gauge (rail spacing 1,015 mm) and 1,435 mm standard gauge (rail spacing 1,450 mm). The same dual-gauge rail tracks are integrated into the rear extension.
The rear bogie runs on six axles with cranked stub-axle steering, with all six axles steered. The maximum steering angle is 45 degrees and the steering system is a hydraulic two-circuit arrangement. Axle compensation is hydraulic, and the axles are BPW/Eco manufacture. The wheelbase between axles is 1,360 mm. There is a pneumatic lift provision on the first axle via a lift bellows. Axle travel is ±130 mm on the primary stage and 0 mm on the secondary stage, and a raise/lower valve is fitted. Tyres are 235/75 R/141J, in twin fitment on disc wheels with centre-bore centring. The rim size is 17.5 × 6.75. The axles are cranked. Braking is to EU standard, with AGS
This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.