Sealing Excellence, Securing Industry

CFKS NBR DK Wiper Seal 80*12*33 DK Type Pneumatic Seal Hydraulic DK Rubber Oil Seal

The CFKS DK Type Wiper Seal 80*12*33 is a high-performance pneumatic component designed specifically for piston rods in cylinders. Its unique geometry ensures a tight fit that effectively wipes away dust, dirt, and moisture, maintaining the integrity of the internal lubrication and extending the service life of the entire pneumatic assembly.

  • Dual-Action Function: Combines effective wiping with secondary sealing capabilities.

  • Optimal Friction: Reduced contact pressure minimizes energy loss and heat buildup.

  • Standard Compliance: Precisely machined to 801233 dimensions for seamless replacement.

Parameter Detail Parameter Detail
Product Name CFKS DK Wiper Seal Specification 80*12*33
Material NBR / FKM / PU Feature Wear-Resistant & Dust-Proof
Work Temp. -20℃ to 220℃ Usage Cylinders, Forklifts, Presses, etc.
Hardness 70-90 Shore A Type Pneumatic/Hydraulic Wiper

 

The DK model operates on the principle of dynamic axial contact. Unlike standard radial seals, the DK profile features a specialized scraping lip designed to maintain constant pressure against the reciprocating rod. This ensures that even under high-frequency strokes, the seal effectively clears debris without compromising the thin film of lubricant necessary for smooth operation.

 

 

Material integrity is paramount in industrial environments. Our standard NBR seals offer excellent resistance to petroleum-based hydraulic fluids and greases, making them ideal for general industrial use. For high-temperature applications or exposure to aggressive chemicals, we provide FKM variants, which maintain structural elasticity and sealing force up to 220°C, preventing the hardening and cracking common in lower-grade elastomers.

 

The DK Wiper Seal is engineered for “Snap-In” installation, allowing for quick maintenance without the need for specialized tensioning tools. By utilizing a low-friction design, these seals significantly reduce the “stick-slip” effect during startup. This leads to a longer Mean Time Between Failures and protects the expensive chrome plating of the cylinder rods from abrasive wear.

 

 

 

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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