Polypac Exact Replacement Seal

Polypac Exact Replacement Seal offers precise fit, long service life and broad material options for hydraulic and oil systems. Custom solutions, fast delivery and strict testing ensure reliable sealing under demanding conditions.
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Product Information

Overview

Polypac Exact Replacement Seal is engineered for direct, drop-in replacement of worn hydraulic and oil seals. Backed by Polypac’s deep experience in seal production and material development, this seal delivers dependable performance across a wide range of applications.

Why Choose Polypac Exact Replacement Seal

We focus on practical benefits that matter to users: easy installation, accurate dimensions, and consistent sealing under pressure, heat, and chemical exposure. Each seal is produced in our 10,000+ sq.m. facility with advanced production and testing equipment to guarantee quality.

Key Benefits

  • Precise Fit: Manufactured to exact dimensions for fast replacement without modification.
  • Durable Materials: Available in NBR, FKM, silicone, EPDM, FFKM and PTFE blends for varied environments.
  • Reliable Performance: Resistant to wear, extrusion, and common hydraulic fluids.
  • Custom Options: Tailored compounds and sizes for special working conditions.
  • Fast Lead Times: Streamlined production and testing for quick delivery.

Applications

Perfect for hydraulic cylinders, pumps, motors, and rotating equipment in industries such as construction, agriculture, oil & gas, and manufacturing. Polypac Exact Replacement Seal ensures minimal downtime and longer equipment life.

Quality and Support

Founded in 2008, Polypac combines research partnerships with hands-on manufacturing experience. Our seals undergo strict testing to meet performance standards. We also offer technical support to help select the right material and size, ensuring you get a solution that works.

How to Order

Contact Polypac with your part number or dimensions. Provide operating temperature, pressure, and fluid type for material recommendations. We deliver standard and custom seals with consistent quality and competitive lead times.

Polypac Exact Replacement Seal brings reliability, value, and expert support—helping you protect equipment and reduce maintenance costs.

Product Image

  • DPT1 Scraper Seals
  • DPT1 Scraper Seals
  • DPT1 Scraper Seals

FAQ

How important is surface finish on the metal parts that contact the seal?
Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.
How can I prevent seal damage during installation?
Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.
What is the purpose of the metal spring in a rotary shaft seal?
The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.
Why did my O-ring fail prematurely?
Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.

If you have any questions or concern, please contact us.

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Polypac Industrial Technology Co.,Ltd
No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.
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Tags
hydraulic piston seals​
hydraulic piston seals​
OEM hydraulic cylinder rod seals
OEM hydraulic cylinder rod seals
Mobile Equipment Seal
Mobile Equipment Seal
Shock Pressure Seal
Shock Pressure Seal
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How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1188 not exceed 150 characters
Please enter your content not exceed 3000 characters

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.