This one and the searchlight are making me wish they were 1/35th!

AGV Make one in 1/35th

No doubt - I love building unusual war materials so I'd definitely buy this in 1/35 to go with my other RR vehicles.

this nazi war machine is unknown for me.

Not a Nazi war machine. Devices like this are known to have been in use as far back as the American Civil War, at least. Google is your friend, dude. Get acquainted.

It is pulled behind a train. The purpose is to break all the railroad ties behind the train and leave a furrow down the track bed. This makes puts the railway out of commission and makes it time consuming to repair the roadbed and replace all the ties before the railway can be restored to service. Normal railway destruct measures are easily reversed because they leave the rails, the ties, and the road bed separated, but each mostly intact.

Even with a Schwellenpflug, returning the right of way to service is merely labor-intensive, because the rails are still intact. "Sherman's neckties", so named from General Sherman's march to the sea during the Civil War, were much more effective as a long-term destruction; the rails were heated, twisted, and then bent, often around a post or pole; the twisting of the rails would make it impossible to simply remount the rails on new sleepers, requiring that not only ties, but rails, be produced and installed. As Henry Hitchcock, Sherman's military secretary, wrote: "Merely bending rails in ordinary way, by piling ties, laying rails across, and allowing their own weight at ends to bend them, thus, is not effectual. If thus merely bent, they can be restored by reverse process. But if twisted, even a little, they are ruined and must be rerolled." With modern railroads, this is less viable, due to the longer sections rails are produced in today.