Sealing Excellence, Securing Industry

CFKS Pneu Piston Seal Double acting DK Complete Piston Seals DK Pneumatic Seals NBR Rubber Double Acting Piston Seal

The CFKS DK Seal is a high-quality NBR rubber pneumatic piston seal designed for double-acting applications. As a complete piston seal, it ensures leak-free performance, excellent elasticity, and smooth operation in pneumatic cylinders. Ideal for automation, machinery, and pneumatic systems, this DK Seal offers durability and reliable sealing.

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

 

1. Reliable DK Seal for Pneumatic Cylinders
The CFKS DK Seal is specifically engineered for pneumatic piston applications, providing a strong and consistent seal in double-acting cylinders. Made from durable NBR rubber, it resists wear, maintains elasticity, and ensures stable performance under repeated movements, making it ideal for automation equipment and industrial pneumatic systems.

 

 

2. Double-Acting Complete Piston Seal Design
This DK pneumatic seal features a double-acting design, allowing effective sealing in both directions of piston movement. Its complete piston seal structure reduces leakage, minimizes friction, and improves the efficiency of pneumatic actuators and air cylinders. With optimized geometry, the seal balances durability and smooth operation.

 

3. NBR Rubber for Long Service Life
Constructed from premium NBR rubber (nitrile butadiene rubber), the CFKS DK Seal provides excellent resistance to abrasion, compression set, and pneumatic fluids. This material ensures long-lasting sealing, reduced maintenance, and cost efficiency, even in demanding industrial environments. Perfect for use in pneumatic actuators, machinery, and automation systems.

 

 

 

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