The flap turn scraper (PKWS) is made for walkways with a dropping into a central/excentric cross cannel. The scraper cleans into both directions to the cross canal. The dropping will be made by a dropping slot or by rusts.
| Scraper type | Walkway width (cm) | Height (cm) | Material |
| PKWS | up to 510 | 20 | steel, galvanized |
