Goldhofer has developed a transporter for US haulier Silk Road Transport, based in Arkport, New York. The STZ-VL 6 (3+3) transporter is specially designed to carry railway vehicles weighing up to 60t. Basic loading platform is 13.5m long but it can be uncoupled from the gooseneck and is extendible in length by another loading platform of 9.4m to give a total loading length of 22.9m. Built-in rails in the chassis of the transporter keep the loading height low.
For empty driving, the 9.4m intermediate platform is pushed onto the bogie using rail rollers and locked through container locks. The transport has been designed for easy operation by just one person. A hydraulic cable winch is built into the gooseneck so that rail vehicles can be loaded either at the front or rear by detachable ramps.