Dynamic Applications

Scraper

A scraper prevents the adhering dirt and dust of the rod from being drawn into hydraulic and pneumatic systems. Scrapers exist in a variety of materials; the most common ones are PTFE (with or without fillers), elastomer and polyurethane.

Scraper A5

The Scraper A5 is a one-piece scraper with two wiper lips, and is available in NBR, FKM or polyurethane (TPU). The scraper A5 in NBR is suitable for hydraulic and pneumatic applications, FKM is particularly suitable for applications where a higher chemical resistance is required. The A5 in TPU is for mobile hydraulics with heavy dirt. The second sealing lip wipes off the residual oil film from the rod.

The scraper A5 has a material hardness of 90 to 95 Shore A, depending on the material used. Further materials upon request. It has a better tight fit and wiping effect due to the additional step on the outer diameter.

fields of application
static
dynamic
single-acting
double-acting
linear
rotatory
oscillating
materials
elastomers, polyurethane
technical data
material NBR
pressure -
temperature -40°C / +100°C (material dependent)
speed up to 1 m/s
material TPU
pressure -
temperature -30°C / +100°C (material dependent)
speed up to 1 m/s
material FKM
pressure -
temperature -20°C / +200°C (material dependent)
speed up to 1 m/s
Maximum values temperature, speed and pressure are simultaneously not applicable! The values vary in dependence of material and media. For technical queries please contact our application consultants – we have the right solution for you. 

Your contact person regarding

Technical topics - special designs

Do you have any questions, ideas or suggestions?

We would be happy to advise you.

Personally, by phone or in digital form.

Mr. Andreas Raidt
+49 (0) 7034 2518 - 240

ara(a)ulman.de

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