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 A8
The Scraper A8 is a one-piece wiper and is available in NBR, FKM or polyurethane (TPU).
The Scraper A8 in:
- NBR is suitable for hydraulic and pneumatic applications
- FKM is particularly suitable for applications where a higher chemical resistance is required
- TPU is particularly suitable for mobile hydraulic with heavy dirt requirements due to its excellent abrasion resistance.
Depending on the material compound, the Scraper A8 has a hardness of 90 to 95 Shore A. It has a better tight fit and wiping effect due to the additional step on the outer diameter.
fields of application
static
dynamic
single-acting
double-acting
linear
rotatory
oscillating
materials
elastomers,
polyurethane
technical data
| material | NBR |
| pressure | - |
| temperature | -40°C / +100°C (material dependent) |
| speed | up to 1 m/s |
| material | FKM |
| pressure | - |
| temperature | -20°C / +200°C (material dependent) |
| speed | up to 1 m/s |
| material | TPU |
| pressure | - |
| temperature | -40°C / +100°C (material dependent) |
| speed | up to 1 m/s |
Maximum values temperature, speed and pressure are simultaneously not applicable! The values vary in dependence of material and media. For technical queries please contact our application consultants – we have the right solution for you.
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