These are special snow ploughs, with a continuously expandable both parts of the shield on the left and right side, weighing approximately 1.680 – 1.800 kg.
- On the one hand, these ploughs can minimize their transport width (by pulling the shield) and at the same time use the entire width of the shield in the extended state.
- Another advantage of these ploughs is that their working width is in each position of extension of the shield part.