The Prädifa Scraper AM has the task of preventing dust, dirt, sand, and metal chips from entering the hydraulic cylinder. This is achieved through its special shape. Scoring is largely avoided, the guide parts are protected and the service life of the seals is extended. An oversize in diameter ensures a tight fit in the groove and thus prevents the ingress of foreign bodies on the outer diameter of the scraper. The wiper ring product series AM can simply be pressed into the cylinder liner and does not require any special locking rings.
- Good wear resistance.
- Suitable for fully automatic
- High-temperature resistance in case of suitable compound
- Excellent media resistance in case of suitable compound
Range of application
Hydraulic and pneumatic cylinders, valve lifters, etc.
Operating temperature -35 °C to +100 °C
Pneumatics -35 °C to +80 °C
Sliding speed ≤ 2 m/s
Compounds
The standard compound for the rubber part of the wiper is an NBR elastomer with a hardness of approx. 90 Shore A (Z5053). Additionally, a large number of dimensions is also available with FKM elastomer (Z5066).
Installation
The profile AM wiper rings are manufactured with a slightly oversized outer diameter D, thus ensuring a secure press-fit in the groove DH8 after installation. Any contact of the wiper lip with piston rod eyes or other connecting parts should be avoided.
d | D | H | h/L | a | Order code | d | D | H | h/L | a | Order code | |
6 | 13 | 4.5 | 3 | 0.6 | AM0018Z5053 | 56 | 66 | 8 | 5 | 1 | AM5051Z5053 | |
10 | 16 | 4.5 | 3 | 0.6 | AM1016Z5053 | 56 | 66 | 10 | 7 | 1.4 | AM5052Z5053 | |
10 | 20 | 8 | 5 | 1 | AM1020Z5053 | 60 | 70 | 10 | 7 | 1.4 | AM6007Z5053 | |
12 | 20 | 6 | 4 | 0.8 | AM1029Z5053 | 60 | 74 | 8 | 5 | 0.8 | AM6008Z5053 | |
12 | 22 | 8 | 5 | 1 | AM1030Z5053 | 63 | 75 | 10 | 7 | 1.4 | AM6035Z5053 | |
14 | 22 | 4 | 3 | 0.6 | AM1035Z5053 | 63 | 83 | 8 | 5 | 1 | AM6043Z5053 | |
16 | 22 | 4 | 3 | 0.6 | AM1053Z5053 | 65 | 75 | 10 | 7 | 1.4 | AM6050Z5053 | |
16 | 26 | 8 | 5 | 1 | AM1055Z5053 | 70 | 80 | 10 | 7 | 1.4 | AM7008Z5053 | |
18 | 28 | 10 | 7 | 1.4 | AM1080Z5053 | 75 | 85 | 10 | 7 | 1.4 | AM7050Z5053 | |
20 | 28 | 5 | 3.5 | 0.8 | AM2001Z5053 | 80 | 90 | 10 | 7 | 1.4 | AM8009Z5053 | |
20 | 30 | 6 | 4 | 0.8 | AM2003Z5053 | 84 | 94 | 8 | 5 | 1 | AM8044Z5053 | |
20 | 30 | 10 | 7 | 1.4 | AM2005Z5053 | 85 | 95 | 10 | 7 | 1.4 | AM8050Z5053 | |
22 | 28 | 9 | 5 | 1 | AM2012Z5053 | 90 | 100 | 7 | 5 | 1 | AM9009Z5053 | |
22 | 32 | 10 | 7 | 1.4 | AM2015Z5053 | 90 | 100 | 10 | 7 | 1.4 | AM9010Z5053 | |
24 | 35 | 8 | 5 | 1 | AM2435Z5053 | 95 | 106 | 10 | 7 | 1.4 | AM9507Z5053 | |
25 | 35 | 10 | 7 | 1.4 | AM2048Z5053 | 100 | 110 | 7 | 5 | 1 | AMA007Z5053 | |
28 | 40 | 10 | 7 | 1.4 | AM2087Z5053 | 100 | 110 | 10 | 7 | 1.4 | AMA010Z5053 | |
30 | 40 | 8 | 5 | 1 | AM3010Z5053 | 110 | 120 | 10 | 7 | 1.4 | AMB020Z5053 | |
30 | 40 | 10 | 7 | 1.4 | AM3012Z5053 | 115 | 125 | 10 | 7 | 1.4 | AMB050Z5053 | |
32 | 45 | 8 | 4 | 0.8 | AM3020Z5053 | 120 | 130 | 10 | 7 | 1.4 | AMC030Z5053 | |
32 | 45 | 10 | 7 | 1.4 | AM3022Z5053 | 125 | 140 | 12 | 9 | 1.8 | AMC050Z5053 | |
35 | 45 | 10 | 7 | 1.4 | AM3050Z5053 | 130 | 145 | 12 | 9 | 1.8 | AMD001Z5053 | |
36 | 45 | 10 | 7 | 1.4 | AM3054Z5053 | 140 | 155 | 12 | 9 | 1.8 | AME005Z5053 | |
36 | 46 | 8 | 5 | 1 | AM3055Z5053 | 150 | 166 | 12 | 8 | 1.8 | AMF003Z5053 | |
40 | 50 | 8 | 5 | 1 | AM4004Z5053 | 160 | 176 | 12 | 8 | 1.8 | AMG008Z5053 | |
40 | 50 | 10 | 7 | 1.4 | AM4005Z5053 | 165 | 180 | 12 | 8 | 1.8 | AMG060Z5053 | |
45 | 55 | 10 | 7 | 1.4 | AM4050Z5053 | 170 | 185 | 14 | 10 | 2 | AMH015Z5053 | |
45 | 60 | 10 | 7 | 1.4 | AM4052Z5053 | 180 | 195 | 14 | 10 | 2 | AMJ009Z5053 | |
50 | 56 | 8 | 5 | 1 | AM5004Z5053 | 200 | 220 | 16 | 12 | 2.4 | AML020Z5053 | |
50 | 60 | 8 | 5 | 1 | AM5007Z5053 | 240 | 260 | 16 | 12 | 2.4 | AMN010Z5092 | |
50 | 60 | 10 | 7 | 1.4 | AM5006Z5053 | |||||||
50 | 65 | 8 | 5 | 1 | AM5010Z5053 | |||||||
55 | 63 | 10 | 7 | 1.4 | AM5050Z5053 | |||||||
55 | 65 | 10 | 7 | 1.4 | AM5048Z5053 |
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