The wear-resistant Ultrathan® Prädifa AY double wiper ring serves to prevent the ingress of dust, dirt, sand, and swarf. This is achieved by its special design which largely prevents scoring, protects the guiding parts, and extends the service life of the seals. In addition, the sealing lip facing the media side reduces the residual oil film. The AY double wiper ring closes the cylinder vis-à-vis the environment.
The AY wiper can be installed in undercut grooves without requiring special screenings or brackets. In addition to higher wear resistance, the utilization of polyurethane offers good resistance against ozone and UV radiation. When PTFE rod seals are used we recommend the combination with the Ultrathan® AY wiper to minimize the residual oil film.
- Extreme wear resistance.
- Excellent media resistance in case of suitable compound selection.
- Suitable compounds available for special requirements of the chemical process industry.
- Suitable compounds available for special requirements of the food processing industry.
- Dimensions according to DIN ISO 6195, Type C.
- Installation in closed and undercut housings.
- Additional sizes of machined products available on short notice.
Range of application
For axially operated rods in hydraulic and pneumatic working cylinders, tappets, and rod guidance.
Operating temperature -35 °C to +100 °C
Pneumatics -35 °C to +80 °C
Sliding speed ≤ 2 m/s
Compounds
Ultrathan® P5008 is a polyurethane-based Parker compound with a hardness of approx. 93 Shore A. In comparison with other polyurethane materials currently available on the market it excels because of its increased heat resistance, improved against hydrolysis, and lower compression set values.
Installation
The profile Parker Praedifa AY double lip wiper ring can easily be snapped into grooves of simple design. Any contact of the wiper lip with piston rod eyes or other connecting parts should be avoided.
However, we recommend the wiper lip to be out-side the housing, so that the wiped- off dirt falls off.
| d | D | H | h | D2 | L | Order code |
| 8 | 13 | 4.1 | 3.1 | 10.5 | 3.5 | AY0080P5008 |
| 10 | 16 | 4.8 | 3.6 | 12.5 | 4 | AY1003P5008 |
| 12 | 18 | 4.8 | 3.6 | 14.5 | 4 | AY1020P5008 |
| 14 | 20 | 4.8 | 3.6 | 16.5 | 4 | AY1040P5008 |
| 15 | 21 | 4.8 | 3.6 | 17.5 | 4 | AY1521P5008 |
| 16 | 22 | 4.8 | 3.6 | 18.5 | 4 | AY1059P5008 |
| 18 | 24 | 4.8 | 3.6 | 20.5 | 4 | AY1080P5008 |
| 20 | 26 | 4.8 | 3.6 | 22.5 | 4 | AY2026P5008 |
| 22 | 28 | 4.8 | 3.6 | 24.5 | 4 | AY2020P5008 |
| 25 | 31 | 4.8 | 3.6 | 27.5 | 4 | AY2050P5008 |
| 28 | 36 | 5.8 | 4.5 | 31 | 5 | AY2080P5008 |
| 30 | 38 | 5.8 | 4.5 | 33 | 5 | AY3001P5008 |
| 32 | 40 | 5.8 | 4.5 | 35 | 5 | AY3002P5008 |
| 35 | 43 | 5.8 | 4.5 | 38 | 5 | AY3039P5008 |
| 36 | 44 | 5.8 | 4.5 | 39 | 5 | AY3060P5008 |
| 37 | 45 | 5.8 | 4.5 | 40 | 5 | AY3070P5008 |
| 40 | 48 | 5.8 | 4.5 | 43 | 5 | AY4002P5008 |
| 45 | 53 | 5.8 | 4.5 | 48 | 5 | AY4045P5008 |
| 50 | 58 | 5.8 | 4.5 | 53 | 5 | AY5002P5008 |
| 51 | 59 | 5.8 | 4.5 | 54 | 5 | AY5010P5008 |
| 55 | 65 | 6.8 | 5.3 | 58 | 6 | AY5050P5008 |
| 56 | 66 | 6.8 | 5.3 | 59 | 6 | AY5060P5008 |
| 60 | 70 | 6.8 | 5.3 | 63 | 6 | AY6003P5008 |
| 63 | 73 | 6.8 | 5.3 | 66 | 6 | AY6030P5008 |
| 65 | 75 | 6.8 | 5.3 | 68 | 6 | AY6065P5008 |
| 70 | 80 | 6.8 | 5.3 | 73 | 6 | AY7000P5008 |
| 75 | 85 | 6.8 | 5.3 | 78 | 6 | AY7085P5008 |
| 80 | 90 | 6.8 | 5.3 | 83 | 6 | AY8030P5008 |
| 85 | 95 | 6.8 | 5.3 | 88 | 6 | AY8050P5008 |
| 90 | 100 | 6.8 | 5.3 | 93 | 6 | AY9000P5008 |
| 100 | 110 | 6.8 | 5.3 | 103 | 6 | AYA005P5008 |
| 110 | 125 | 9.5 | 7.5 | 114 | 8.5 | AYB000P5008 |
| 120 | 135 | 9.5 | 7.5 | 124 | 8.5 | AYC020P5009 |
| 125 | 140 | 9.5 | 7.5 | 129 | 8.5 | AYC030P5008 |
| 138 | 158 | 9.5 | 7.5 | 142 | 8.5 | AYD838P5008 |
| 140 | 155 | 9.5 | 7.5 | 144 | 8.5 | AYE001P5008 |
| 160 | 175 | 9.5 | 7.5 | 164 | 8.5 | AYG001P5008 |
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