The feat of Mercedes-Benz on rails in the subwayNovember 3, 2019
Special Mercedes-Benz Unimog U 423 tractors can easily tow a 200-ton metro train weighing 200 tons
The Dutch transport company GVB has two unique Mercedes-Benz Unimog U 423 tractors in its fleet, which are capable of moving on rails. They can work as tow trucks on the M52 metro line in Amsterdam. The total length of the line is 9.7 km, of which 7.1 km per tunnel. In the event of a subway train breakdown, two Unimog U 423 tractors can easily pull the 123-meter 200-ton metro train out of the dungeon – and this despite the fact that part of the line is laid at a 4% slope.
Note that the first Mercedes-Benz Unimog U 423 entered the GVB fleet back in 2017 – this machine is equipped with a crane installation for various types of repair work on the metro line. And this year a second car was purchased – with a van body. And now it became possible to tow such a heavy load as a whole metro train.
Each of the cars is equipped with a 231-horsepower turbodiesel (900 Nm) and a torque converter. Of the special equipment is a guide system with hydraulic drive for moving on rails, as well as a powerful brake system that helps to effectively stop the entire coupling from subway cars.
GVB is Amsterdam’s Municipal Transportation Corporation, which operates metro, trams, city buses, and city ferries. The company carries 227.1 million passengers a year, and the staff numbers about 5,000 people.
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