Sealing Excellence, Securing Industry

CFKS SPGA Excavator Special Cylinder Seals Piston Sealing Ring Hydraulic Seal

CFKS SPGA Oil Seal provides reliable double-acting piston sealing for excavator and hydraulic cylinders. Made from PU and NBR, it offers excellent wear resistance, oil sealing, and durability in demanding hydraulic systems. Find your sealing solution with CFKS — contact us for a quote.

Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type SPGA Oil Seal  Packing 1 pc per bag

 

The CFKS SPGA Oil Seal is a high-performance piston seal designed for hydraulic cylinders in excavators and industrial machinery. Made from premium polyurethane (PU) and NBR materials, the SPGA piston seal provides excellent resistance to pressure, wear, and hydraulic oil. Its double-acting design ensures effective sealing on both sides of the piston, maintaining high reliability under tough working conditions.

This SPGA hydraulic oil seal features outstanding durability, low friction, and stable performance at both high and low pressures. The strong combination of the sealing ring and energizing O-ring provides superior leakage prevention, extended service life, and minimal maintenance requirements. Ideal for use in construction machinery, injection molding machines, and heavy-duty hydraulic equipment.

The CFKS SPGA Oil Seal is suitable for excavator hydraulic cylinders, piston sealing systems, and heavy machinery hydraulic applications. Its robust structure and oil-resistant design ensure long-term performance, making it an ideal choice for industries demanding reliable piston sealing solutions.

Frequently Asked Questions (FAQ)

Why does my CFKS oil seal fail prematurely? Common causes and prevention tips2025-06-26T15:44:39+08:00

Premature oil seal failure can result from improper installation, poor shaft finish, incorrect material selection, or excessive pressure. To prevent this, ensure the shaft surface is smooth and within tolerance, use correct tools during installation, and choose seals made from materials compatible with your media and temperature.

How to correctly install a CFKS industrial oil seal to avoid leakage2025-06-26T16:04:32+08:00

Always clean the shaft and bore before installation. Use appropriate seal drivers to avoid deformation. Lubricate the lip before fitting to reduce friction during the first rotation. Ensure the seal is seated evenly and not tilted to avoid leaks.

What to do when your CFKS hydraulic seal is leaking under pressure2025-05-20T16:33:14+08:00

Check if the pressure exceeds the seal’s rated limit. Examine for wear, hardening, or improper installation. Replace the seal if damaged, and consider upgrading to a high-pressure CFKS seal variant. Also, verify that the housing and shaft are properly aligned.

How to choose the right CFKS oil seal for extreme operating environments2025-05-20T16:34:39+08:00

For high temperatures, aggressive chemicals, or abrasive environments, choose CFKS seals made of FKM, PTFE, or high-performance elastomers. Consider using seals with protective dust lips or metal casing. Our team can recommend the best fit for your application.

Go to Top