
Dynamic Seals
Scraper
A scraper prevents the adhering dirt and dust of the rod from being drawn into hydraulic and pneumatic systems. Scrapers exist in a variety of materials; the most common ones are PTFE (with or without fillers), elastomer and polyurethane.
Scraper A3
The Scraper A3 consists of a PTFE element with two wiper edges and an O-ring as preload element. The Scraper A3 has excellent sliding properties, runs stick-slip free and has good media resistance. This is ideal for all applications with heavy dirt infestations. The second sealing lip wipes off the residual oil film from the rod. This is ideal for large installation spaces in comparison to the A2 design, especially suitable for heavy use.
The PTFE compound is filled with bronze or carbon graphite to improve the compressive strength. O-rings are available in a variety of different materials.







material | NBR |
pressure | - |
temperature | -30°C / +80°C (material dependent) |
speed | up to 10 m/s |
material | FKM |
pressure | - |
temperature | -20°C / +200°C (material dependent) |
speed | up to 10 m/s |

Your contact person regarding
Technical topics - special designs
Do you have any questions, ideas or suggestions?
We would be happy to advise you.
Personally, by phone or in digital form.
Mr. Andreas Raidt+49 (0) 7034 2518 - 240