Pneumatic Seal PP
The profile PP pneumatic cushioning seal is specially designed for cushioning pistons in pneumatic cylinders.
• No mechanical check valves required since their function is performed by the cushioning rings.
• High cushioning consistency due to automatic centering, even in the case of misalignment of the cushioning spear and the cylinder head.
• Optimum use of design-related cushion travel.
• Robust seal profile for harshest operating conditions.
• Immediate response to reversed direction thanks to incorporated venting channels.
• Extreme wear resistance.
• Easier installation.
• Excellent media resistance in case of suitable compound selection.
• Installation in closed housings.
| Range of application | |
| For pneumatic cylinders with end-position cushioning. | |
| Operating pressure | ≤ 16 bar1) |
| Operating temperature | |
| PP NBR N3589 | -20 °C to +80 °C |
| PP PUR P5008 | -35 °C to +80 °C |
| Sliding speed | ≤ 1 m/s |
| Media | Compressed air, both lubricated and oil free (after greasing for fitting) |
Installation
The profile PP cushioning seals are easily snapped into the groove, which should be free of all contaminants and foreign particles before installation. Care should be taken that the sealing lips are not damaged by sharp edges during installation. Initial lubrication is essential for very long service life.
| d, | D, | H, | h, | D a , | D1, | D2, | L, |
| PP NBR N3589 | |||||||
| 5 | 9 | 4.1 | 3.2 | 8.7 | 5.5 | 7 | 3.7 |
| 6 | 10 | 4.1 | 3.2 | 9.7 | 6.5 | 8 | 3.7 |
| 8 | 11.6 | 3.5 | 2.8 | 11.3 | 8.5 | 10 | 3.3 |
| 9.5 | 15 | 4.6 | 3.7 | 14.7 | 10 | 12 | 4.5 |
| 10 | 18 | 7.8 | 6.3 | 17 | 10.5 | 15 | 7 |
| 12 | 18 | 5 | 4.1 | 17.8 | 13 | 15.5 | 4.8 |
| 12 | 20 | 7.8 | 6.3 | 19.1 | 13 | 17 | 7 |
| 14 | 22 | 7.8 | 6.3 | 21.1 | 15 | 19 | 7 |
| 16 | 22 | 5.5 | 4.5 | 21.5 | 17 | 19.5 | 5.2 |
| 16 | 24 | 7.8 | 6.3 | 23.1 | 17 | 21 | 7 |
| 18 | 26 | 7.8 | 6.3 | 25.1 | 19 | 23 | 7 |
| 20 | 28 | 7.8 | 6.3 | 27.1 | 21 | 24 | 7 |
| 22 | 30 | 7.8 | 6.3 | 29.1 | 23 | 26 | 7 |
| 25 | 33 | 7.8 | 6.3 | 32.1 | 26 | 29 | 7 |
| 28 | 36 | 7.8 | 6.3 | 35.1 | 29 | 32 | 7 |
| 30 | 40 | 7.8 | 6.2 | 39.1 | 31.5 | 35 | 7 |
| 32 | 42 | 7.8 | 6.2 | 41.1 | 33.5 | 37 | 7 |
| 36 | 46 | 7.8 | 6.2 | 45.1 | 37.5 | 41 | 7 |
| 40 | 50 | 7.8 | 6.2 | 49.1 | 41.5 | 45 | 7 |
| 50 | 60 | 7.8 | 6.2 | 59.1 | 51.5 | 55 | 7 |
| 50 | 67 | 11 | 11 | 66.2 | 53 | 58 | 12.5 |
| 57 | 74 | 11 | 11 | 73.2 | 60 | 65 | 12.5 |
| 70 | 87 | 11 | 11 | 86.3 | 73 | 78 | 12.5 |
| 78 | 95 | 11 | 11 | 94.3 | 81 | 86 | 12.5 |
| PP PUR P5008 | |||||||
| 8 | 11.6 | 3.5 | 2.8 | 11.1 | 8.5 | 10 | 3.3 |
| 9.5 | 15 | 4.6 | 3.7 | 14.7 | 10 | 12 | 4.5 |
| 12 | 18 | 5 | 4.1 | 17.8 | 13 | 15.5 | 4.8 |
| 14 | 22 | 7.8 | 6.3 | 21.05 | 15 | 19 | 7 |
| 16 | 22 | 5.5 | 4.5 | 21.5 | 17 | 19.5 | 5.2 |
| 16 | 24 | 7.8 | 6.3 | 23.1 | 17 | 21 | 7 |
| 18 | 26 | 7.8 | 6.3 | 25.1 | 19 | 23 | 7 |
| 20 | 28 | 7.8 | 6.3 | 27.1 | 21 | 24 | 7 |
| 22 | 30 | 7.8 | 6.3 | 29.1 | 23 | 26 | 7 |
| 25 | 33 | 7.8 | 6.3 | 32.1 | 26 | 29 | 7 |
| 28 | 36 | 7.8 | 6.3 | 35.1 | 29 | 32 | 7 |
| 30 | 40 | 7.8 | 6.3 | 39.1 | 31.5 | 35 | 7 |
| 32 | 42 | 7.8 | 6.2 | 41.1 | 33.5 | 37 | 7 |
| 36 | 46 | 7.8 | 6.2 | 45.1 | 37.5 | 41 | 7 |
| 40 | 50 | 7.8 | 6.2 | 49.1 | 41.5 | 45 | 7 |
| 50 | 60 | 7.8 | 6.2 | 59.1 | 51.5 | 55 | 7 |
| 57 | 74 | 11 | 11 | 73.2 | 60 | 65 | 12.5 |
| 78 | 95 | 11 | 11 | 94.3 | 81 | 86 | 12.5 |