Company Advantages
· The production of FOREVER SEALS hydraulic oil seal adopts a relatively advanced technical level in the industry.
· The strict quality control system is adopted to provide a strong guarantee for the quality of the product.
· Under systematic management, FOREVER SEALS has trained a team with high sense of responsibility.
Product Advantages
Superior Sealing Integrity: The V-shaped structure with self-tightening technology ensures a tighter seal as pressure increases, minimizing leakage even in high-pressure (up to 300bar) environments.
Extended Service Life: Equipped with wear-compensating elastic elements, the seals automatically adjust for minor wear, reducing replacement frequency and maintenance costs.
Wide Operating Range: Withstands temperatures from -35℃ to +110℃ (short-term up to 125℃) and resists oils, greases, and harsh industrial fluids, adapting to diverse working conditions.
Low Friction Performance: The modified polyurethane sliding ring reduces friction during reciprocating motion, lowering energy loss and enhancing system efficiency.
Working Principle
The KR-type seal consists of two key components: a wear-resistant polyurethane sliding ring and an NBR elastic expansion element. When hydraulic pressure is applied, the elastic element deforms, pushing the sliding ring tightly against the cylinder wall to form an initial seal. As pressure increases, the V-shaped design of the sliding ring "spreads," amplifying the contact force with the cylinder—creating a self-reinforcing seal that prevents fluid leakage. During long-term use, the elastic element continuously compensates for wear on the sliding ring, maintaining consistent sealing performance.
Product Details
Materials: Sliding ring (modified polyurethane for abrasion resistance); expansion element (NBR rubber for elasticity and chemical resistance).
Dimensions: Customizable to fit standard ISO 15074，with precise tolerances ensuring compatibility with industrial cylinders.
Installation: Designed for easy integration into piston grooves, requiring minimal assembly time and reducing installation errors.
Testing: Each unit undergoes pressure and temperature resistance tests to guarantee compliance with industry standards.
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Application Range
Industrial hydraulic cylinders (e.g., presses, injection molding machines).
Heavy machinery (construction equipment, agricultural machinery, mining vehicles).
Mobile hydraulic systems (steering cylinders, lift mechanisms).
Any reciprocating piston application demanding low leakage and high durability.
FAQ
Q: What is the maximum pressure the KR seal can handle?
A: It operates reliably up to 300bar, making it suitable for medium to high-pressure hydraulic systems.
Q: Can it be used with different hydraulic fluids?
A: Yes, the materials resist mineral oils, synthetic fluids, and most industrial lubricants (contact us for specific fluid compatibility).
Q: How often should the seals be replaced?
A: Service life varies by application, but the wear-compensating design typically extends replacement intervals by 30% compared to standard seals.
FOREVER SEALS Advantages
Quality Commitment: Over 20 years of expertise in sealing solutions, with ISO 9001 certification ensuring consistent production standards.
Customization: Ability to tailor dimensions and materials to meet unique customer requirements.
Global Support: Fast delivery through a worldwide distribution network and responsive technical support for installation and troubleshooting.
Sustainability: Eco-friendly manufacturing processes and recyclable packaging, aligning with green industry practices.
Trust FOREVER SEALS to deliver reliable, long-lasting sealing solutions for your critical hydraulic systems.
Company Features
· Founded many years ago, FOREVER SEALS TECHNOLOGY.,LIMITED is a manufacturer of hydraulic oil seal in China, with a consistent and easily recognizable image.
· We conduct business all over the world. We are constantly improving the service spectrum to reach customers easily from Asia to Africa, from Europe to America, in short, all over the world, without being confined to the domestic hydraulic oil seal market.
· Our business philosophy is to provide the highest services for our customers. We are trying to provide effective solutions and cost benefits that are of mutual benefit to our company and our clients.
Product Details
FOREVER SEALS's hydraulic oil seal has excellent performances by virtue of the following excellent details.
Product Comparison
FOREVER SEALS's hydraulic oil seal has been substantially improved in a scientific way, as shown in the following aspects.
Enterprise Advantages
FOREVER SEALS brings together many middle and senior technical talents who have worked hard for many years in the industry.
FOREVER SEALS values the needs and complaints of consumers. We seek development in demand and solve problems in complaints. Moreover, we continuously take innovation and improvement and strive to create more and better services for consumers.
In the future, FOREVER SEALS will continue to be aggressive, pioneering and innovative. We pay great attention to integrity and business reputation. Our aim is to develop quality products and build an excellent brand. We receive customers' trust and support depending on fine products and professional services.
Since the inception in FOREVER SEALS has gone through the development for years. Now we have advanced production and processing techniques.
Our products are very popular both at home and abroad.
