Sealing Excellence, Securing Industry

CFKS DH Type Oil Seal 38*44*5/6.5 Hydraulic Cylinder Dust Oil Seal

CFKS DH Type Dust Oil Seal (38*44*5/6.5) prevents contaminants from entering hydraulic cylinders, protecting internal seals and shafts. CFKS DH Type Oil Seal 38-44-5/6.5 | Hydraulic Cylinder Dust Wiper Seal | High Efficiency. 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 DH Oil Seal   Packing 1 pc per bag

 

CFKS presents the professional DH Type Oil Seal (38*44*5/6.5), the first line of defense essential for reliable hydraulic cylinder operation. This Hydraulic Cylinder Dust Oil Seal is specifically engineered to be installed at the external face of the cylinder rod gland, with its primary function being the exclusion of contaminants. The high-precision DH Type Seal prevents dirt, dust, water, and debris from traveling along the rod surface and damaging internal components, significantly extending the service life of the main rod seal and the entire cylinder.

The CFKS DH Type Oil Seal features an optimized lip design that ensures high-efficiency wiping performance during the piston rod’s reciprocating stroke. Typically manufactured from highly wear-resistant polymer materials (such as PU or NBR), the unique double-acting lip structure of this DH Type Seal aggressively clears away external particles. The precise 38*44*5/6.5 dimensions and robust fitment prevent the seal from rolling or twisting, guaranteeing stable contamination prevention even in the harshest working environments.

The CFKS DH Type Oil Seal is a vital standard component in construction equipment, agricultural machinery, heavy trucks, and various industrial hydraulic systems. The function of this specialized DH Type wiper seal is indispensable: its installation saves substantial repair costs associated with internal component failure. Choose CFKS for OEM quality and reliable dust sealing capabilities with the 38*44*5/6.5 seal. Invest in our Hydraulic Cylinder Dust Oil Seal to ensure your cylinder rods remain clean and your hydraulic fluid stays pure, delivering consistent system performance.

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.

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