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 A4

The Scraper A4 is a one-piece scraper with two wiper lips, and is available in polyurethane (TPU). It is characterized by its excellent abrasion resistance and features high durability due to the advantages of TPU. The second sealing lip wipes off the residual oil film from the rod. The scraper A4 can be used for pressures up to 2 MPa.

The scraper A4 is particularly suitable for mobile hydraulics with heavy dirt. The standard TPU compound for scraper A4 has a hardness of 90 - 95 Shore A.

fields of application
static
dynamic
single-acting
double-acting
linear
rotatory
oscillating
materials
polyurethane
technical data
pressure up to 2 MPa
temperature -40°C / +100°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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