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COP/APA Cylinder Piston Seal Pneumatic Bidirectional Figure-eight Buffer C-ring Air Seal

Hydraulic seals
January 09, 2026
Category Connection: Hydraulic Piston Seals
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Tags:
#hydraulic oil seal #hydraulic cylinder piston rings #hydraulic piston rings
Brief: This video explains the main functions and practical uses of the Double O-ring COP/APA Thin SC Cylinder Piston Seal in a clear, step-by-step format. You'll see a detailed demonstration of this pneumatic bidirectional figure-eight buffer C-ring air seal designed for hydraulic cylinder applications, including its construction and performance characteristics.
Related Product Features:
  • Features a double O-ring configuration with excellent performance characteristics for hydraulic cylinder applications.
  • Designed as a pneumatic bidirectional figure-eight buffer C-ring air seal for reliable operation.
  • Constructed from durable NBR material suitable for various industrial environments.
  • Operates effectively within a wide temperature range from -25℃ to +100℃.
  • Withstands high-pressure applications with a pressure rating of 35 MPa.
  • Available in standard size 100*85*5.6 with custom special sizes available upon request.
  • Manufactured under strict quality control standards by NFK brand with OEM acceptance.
  • Suitable for multiple industries including construction machinery, hydraulic cylinder manufacturing, and mining equipment.
FAQs:
  • What materials are used in the Double O-ring COP/APA Cylinder Piston Seal?
    The seal is constructed from NBR (Nitrile Rubber) material, which provides excellent performance characteristics for hydraulic cylinder applications.
  • What is the operating temperature range for this pneumatic seal?
    This seal operates effectively within a temperature range of -25℃ to +100℃, making it suitable for various industrial environments.
  • Do you accept custom size orders for these cylinder piston seals?
    Yes, we accept OEM orders and provide custom special sizes under the NFK brand, with minimum order quantities ranging from 5-50 pieces depending on packaging requirements.
  • What is the pressure rating for this bidirectional figure-eight buffer C-ring?
    The seal has a pressure rating of 35 MPa, making it suitable for high-pressure hydraulic cylinder applications.
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