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The RG wiper ring, also known as a rubber-metal scraper, is a standard component used to protect rods with reciprocating linear motion in hydraulic and pneumatic applications. Its main function is to prevent the ingress of dust, dirt, and other contaminants, thus protecting the seals and other internal parts from wear and damage.

Main characteristics:

• Materials: Typically made of rubber (NBR or FKM) with an internal metal reinforcement to ensure stability and strength.
• Function: Removes residues and impurities from the rod, preventing them from entering the hydraulic or pneumatic system.
• Installation: Mounted in a specific housing, often according to ISO standards for housing machining (H8 and chamfer).
• Temperature: Suitable for temperatures from -25°C to +100°C for the NBR compound and from -20°C to +100°C for the FKM compound.
• Speed: Can operate at linear speeds up to 2 m/s.
• Application: Ideal for applications with reciprocating linear motion, such as hydraulic and pneumatic pistons and cylinders.

Advantages:

• Protection: Protects seals and internal parts from contaminants, extending the system’s service life.
• Reliability: The metal reinforcement ensures good stability and strength, maintaining the scraper’s effectiveness over time.
• Ease of installation: Thanks to its shape and standard dimensions, it is relatively easy to install in dedicated housings.

In summary, the RG wiper ring is an essential component for ensuring the durability and efficiency of systems that use reciprocating rods, protecting them from harmful external agents.

Technical features