Pneumatic Seal EK
Range of application
Complete piston for single-acting pneumatic cylinders with and without cushioning,provided that no excessive lateral guidance loads will occur (long strokes and buckling).
• Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
• Immediate response (full pressure load) thanks to incorporated venting channels.
• Good wear resistance.
• Ideal corrosion protection thanks to complete elastomer covering.
• Smooth running due to optimum lubricant-retaining sealing lip geometry.
• Easy attachment to the piston rod without additional sealing elements.
• Easy installation due to integrated static sealing function.
• Excellent media resistance in case of suitable compound selection.
• Also available as double-acting version.
• Low assembly height of the complete piston enables short cylinder designs.
• Versatile complete piston for nearly all cylinder designs.
| Range of application | |
| Complete piston for single-acting pneumatic cylinders with and without cushioning, provided that no excessive lateral guidance loads will occur (long strokes and buckling). | |
| Operating pressure | ≤ 16 bar |
| Operating temperature | -30 °C to +80 °C |
| Sliding speed | ≤ 1 m/s |
| Media | Compressed air, both lubricated and oil free (after greasing for fitting) |
Installation
The profile EK complete piston is fixed to the piston rod with a locknut to avoid loosening. For use with dry and oil-free air, the piston and cylinder tube must be prelubricated with a suitable long-life lubricant.It must be assured that the sealing lips do not touch the cylinder bottom and the cylinder cap at the limit stops (see also dimension „Ø dm“).
| D, | d, | H, | h, | da, | h1, | dm, |
| 25 | 8 | 7.9 | 6 | 16 | 3.6 | 21 |
| 32 | 8 | 10.65 | 6.5 | 16 | 4 | 26.5 |
| 40 | 10 | 12.4 | 7 | 22 | 4.6 | 34 |
| 40 | 14 | 13.4 | 7 | 22 | 4 | 34 |
| 50 | 10 | 12.8 | 7.8 | 25 | 4.6 | 43 |
| 50 | 14 | 13.4 | 7 | 25 | 5 | 43 |
| 50 | 16 | 14 | 7.5 | 25 | 5 | 43 |
| 63 | 27 | 14.1 | 7 | 40 | 4.6 | 57 |
| 80 | 12 | 15.2 | 8 | 55 | 5.6 | 70 |
| 80 | 16 | 15.2 | 8 | 55 | 5.6 | 70 |
| 80 | 27 | 15.35 | 8.5 | 55 | 6 | 72 |
| 125 | 20 | 17.6 | 9.5 | 90 | 5.6 | 114 |
| 140 | 22 | 19.6 | 10.5 | 108 | 6.6 | 125 |
| 200 | 27 | 24.55 | 14.5 | 150 | 10.6 | 180 |