Sealing material
Hydraulic cylinder design
The sealing material is the combination of the basic materials used in the cylinder. Depending on the medium used or at certain temperatures, the chemical resistance and the anti-wear and friction behaviour of the seal material has to be considered.
| Seal material |
T min in °C |
T max in °C |
Basic materials | Applicable fluid |
| PU/ NBR-based (standard) |
-30 | 100 | PU / NBR / PTFE | Mineral oils DIN 51524 |
| NBR-based | -30 | 100 | NBR / PTFE | Mineral oils DIN 51524 Water HFA - DIN 51502 HFC - DIN 51502 Ultrasafe® series 100 |
| FKM-bassed | -20 | 200 | FKM / PTFE | Mineral oil DIN 51524 some HFD - DIN 51502 Ultrasafe® series 1000 |
| EPDM-based | -30 | 150 | EPDM / PTFE | Water some phosphate esters Skydrol® Braking fluid DOT-4 |
| T min | Lowest temperature |
| T max | Highest temperature |
www.haenchen.de | info@haenchen.de