Scraper seal A4

polyurethanewith circular cross sectionoil

Product description The Scraper A4 is a one-piece rod scraper with two wiper lips, manufactured in polyurethane (TPU). It offers excellent abrasion resistance and extended service life due to the properties of TPU. The secondary sealing lip removes residual oil film from the rod surface, reducing contamination ingress. The Scraper A4 is designed for pressures up to 2 MPa and is especially suitable for mobile hydraulic applications with heavy dirt. The standard TPU compound has a hardness of 90–95 Shore A.

Fields of application

• static
• dynamic
• single acting
• double acting
• linear
• rotating (inactive)
• oscillating

Main use Applications for hydraulic and pneumatic cylinders

Materials polyurethane (TPU)

Technical values

• Materials: TPU
• Pressure: up to 2 MPa
• Temperature: -40°C / +100°C (material dependent)
• Speed: up to 1 m/s
• Standard TPU hardness: 90 - 95 Shore A
• Note: Maximum values for temperature, speed and pressure are not simultaneously applicable and vary depending on material and media.

Characteristics / technical specifications

• One-piece scraper with two wiper lips
• Secondary sealing lip for wiping residual oil film
• High abrasion resistance and long service life
• Suitable for mobile hydraulics with heavy contamination
• Pressure rating up to 2 MPa
• Temperature range -40°C to +100°C (material dependent)
• Maximum speed up to 1 m/s
• Material: polyurethane (TPU), standard hardness 90 - 95 Shore A