PDU Packings
Sakagami PDU pneumatic packings combine sealing and wiper functions in a single component, enabling more compact and simplified cylinder designs. This two-in-one solution reduces part count and assembly time while maintaining reliable performance, making it ideal for modern pneumatic systems where space and efficiency matter.
Dimension table
| Packings & Groove dimensions（Unit：mm) | Part No. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | H | t | G | C | B | r | # | Standard （RN 818） |
High temperature-resistant （RF 905） |
|
| RN818 | RF905 | ||||||||||
| 4 | 8 | 4.4 | 3 | 3.5 | 5.6 | 2 | 0.5 | 1.5 | PDU-4-4Z |
||
| 6 | 10 | 4.4 | 3 | 3.5 | 7.6 | 2 | 0.5 | 1.5 | PDU-6Z | PDU-6F | |
| 8 | 12 | 4.9 | 4.7 | 3.5 | 4 | 9.6 | 2 | 0.5 | 1.5 | PDU-8Z | PDU-8F |
| 10 | 14 | 4.9 | 4.7 | 3.5 | 4 | 11.6 | 2 | 0.5 | 1.5 | PDU-10Z | PDU-10F |
| 12 | 16 | 4.9 | 4.7 | 3.5 | 4 | 13.6 | 2 | 0.5 | 1.5 | PDU-12Z | PDU-12F |
| 14 | 18 | 4.9 | 4.7 | 3.5 | 4 | 15.6 | 2 | 0.5 | 1.5 | PDU-14Z | PDU-14F |
| 16 | 24 | 7.5 | 7.3 | 5.5 | 6 | 19.4 | 2 | 0.6 | 2 | PDU-16Z | PDU-16F |
| 18 | 26 | 7.5 | 7.3 | 5.5 | 6 | 21.4 | 2 | 0.6 | 2 | PDU-18-4Z |
|
| 20 | 28 | 7.5 | 7.3 | 5.5 | 6 | 23.4 | 2 | 0.6 | 2 | PDU-20Z | PDU-20F |
| 25 | 33 | 7.5 | 7.3 | 5.5 | 6 | 28.4 | 2 | 0.6 | 2 | PDU-25Z | PDU-25F |
| 30 | 40 | 8.5 | 6.5 | 7 | 34 | 2 | 0.8 | 2.5 | PDU-30Z | PDU-30F | |
| 32 | 42 | 8.5 | 6.5 | 7 | 36 | 2 | 0.8 | 2.5 | PDU-32Z | PDU-32F | |
| 35 | 45 | 8.5 | 6.5 | 7 | 39 | 2 | 0.8 | 2.5 | PDU-35Z | PDU-35F | |
| 36 | 46 | 8.5 | 6.5 | 7 | 40 | 2 | 0.8 | 2.5 | PDU-36Z | PDU-36F | |
| 40 | 50 | 8.5 | 6.5 | 7 | 44 | 2 | 0.8 | 2.5 | PDU-40Z | ||
| 45 | 55 | 8.5 | 6.5 | 7 | 49 | 2 | 0.8 | 2.5 | PDU-45Z | ||