Axle loads of up to 45 tonnes and high transport volumes of up to 250 million load tonnes per year are an enormous burden on heavy haul lines. Alongside ballast attrition, major soiling by bulk freight falling overboard is an issue. At the same time, high demands are placed on availability and flexibility. That is why the world’s fastest ballast cleaning machines are used for heavy haul tracks. Assistance systems and digital tools add to the high level of automation already existing on remote lines today.