Parker Prädifa Wiper A1 TPU

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The Parker Prädifa A1 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. An oversized outer diameter ensures interference fit in the groove, thus preventing ingress of foreign particles and moisture via the static seal fit of the wiper.

The Parker Praedifa A1 wiper is available in both Ultrathan® and rubber compounds. The Ultrathan® versions are characterized by extremely high wear resistance.

  • Extreme wear resistance.
  • Excellent media resistance in case of suitable compound selection.
  • Suitable compounds are available for special requirements of the chemical process industry.
  • Suitable compounds are available for special requirements of the food processing industry.
  • Dimensions according to DIN ISO 6195, Type E.
  • Product geometry prevents dirt deposits at the front face of the cylinder.
  • Installation in closed and undercut housings.
  • Additional sizes of machined products available on short notice.

Range of application

Axially operated rods in hydraulic and pneumatic working cylinders, plungers, and rod guidance.

Operating temperature                                    -35 °C to +110 °C

Sliding speed                                                    ≤ 2 m/s

Compounds

The Ultrathan® P5008 compound is a Parker material based on polyurethane with a hardness of approx. 93 Shore A. Its main advantages in comparison with other polyurethane materials currently available on the market are the increased heat and wear resistance.

Installation

The profile A1 Ultrathan® wiper ring can be snapped into simple housings. The wiper lip should not come into contact with the piston rod eye or their connecting pieces. It is however recommended that the wiper lip be positioned outside the housing so that the wiped-off dirt can be easily removed.

d D H L a n Order code d D H L a n Order code
12 20 7 4 1 1 A11010P5008 100 108 7 4 1 1 A1A010P5008
14 22 7 4 1 1 A11015P5008 105 117 10 5.5 1.5 1.5 A1A035P5008
16 24 7 4 1 1 A11025P5008 110 122 10 5.5 1.5 1.5 A1B010P5008
18 26 7 4 1 1 A11035P5008 120 132 10 5.5 1.5 1.5 A1C010P5008
20 28 7 4 1 1 A12005P5008 125 137 10 5.5 1.5 1.5 A1C020P5008
22 30 7 4 1 1 A12010P5008 128 140 10 5.5 1.5 1.5 A1C035P5008
25 33 7 4 1 1 A12025P5008 130 142 10 5.5 1.5 1.5 A1D010P5008
28 36 7 4 1 1 A12035P5008 140 152 10 5.5 1.5 1.5 A1E010P5008
30 38 7 4 1 1 A13005P5008 145 157 10 5.5 1.5 1.5 A1E035P5008
32 40 7 4 1 1 A13010P5008 150 162 10 5.5 1.5 1.5 A1F005P5008
35 43 7 4 1 1 A13025P5008 160 172 10 5.5 1.5 1.5 A1G010P5008
36 44 7 4 1 1 A13030P5008 170 182 10 5.5 1.5 1.5 A1H010P5008
38 46 7 4 1 1 A13035P5008 180 192 10 5.5 1.5 1.5 A1J010P5008
40 48 7 4 1 1 A14005P5008 190 202 10 5.5 1.5 1.5 A1K015P5008
42 50 7 4 1 1 A14015P5008 200 212 10 5.5 1.5 1.5 A1L003P5008
45 53 7 4 1 1 A14030P5008 220 235 13 6.5 2 2 A1M010P5008
48 56 7 4 1 1 A14050P5008 230 245 13 6.5 2 2 A1M016P5008
50 58 7 4 1 1 A15005P5008 240 255 13 6.5 2 2 A1N015P5008
50 62 10 5.5 1.5 1.5 A15010P5008 260 275 13 6.5 2 2 A1O005P5008
55 63 7 4 1 1 A15035P5008
56 64 7 4 1 1 A15040P5008
60 68 7 4 1 1 A16005P5008
62 70 7 4 1 1 A16015P5008
63 71 7 4 1 1 A16020P5008
65 73 7 4 1 1 A16030P5008
70 78 7 4 1 1 A17005P5008
70 82 10 5.5 1.5 1.5 A17008P5008
75 83 7 4 1 1 A17025P5008
80 88 7 4 1 1 A18002P5008
80 92 10 5.5 1.5 1.5 A18003P5008
85 93 7 4 1 1 A18025P5008
90 98 7 4 1 1 A19005P5008
95 103 7 4 1 1 A19030P5008
97 105 7 4 1 1 A19045P5008

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