Cassette seals

Cassette seals: the precision choice for industrial seals

Overview of cassette seals

Cassette seals, also known as rectangular seals or extended versions of “O” rings, are a type of sealing element that is widely used in the field of industrial sealing. They are widely used in hydraulic and pneumatic systems as well as various mechanical equipment due to their excellent sealing performance and structural stability.

Product Features

High sealing performance: The rectangular cross-section of the cassette seal provides a larger contact area for a more reliable seal.

Good adaptability: It can adapt to different trench designs to meet diverse installation needs.

Excellent chemical resistance: Made of high-quality rubber materials, it has good resistance to most chemicals.

Temperature resistance: Depending on the rubber material, cassette seals can be adapted to a wide range of applications from low to high temperatures.

Structural stability: Compared to traditional “O” rings, cassette seals have better resistance to extrusion and deformation.

Target market

Our cassette seals are targeted at the following markets:

Manufacturer of hydraulic and pneumatic systems: used to seal systems and prevent oil or gas leakage.

Machinery and equipment manufacturers: seals for various mechanical equipment to improve the stability and safety of equipment operation.

Automotive industry: used for sealing engines, gearboxes and other components to reduce noise and vibration.

Product Advantages

Experience advantage: More than 40 years of experience in rubber seal manufacturing to ensure product quality and performance.

Material advantages: The use of high-quality rubber materials, combined with special formulations, provides a better sealing effect and durability.

Customized services: Provide customized services according to customer needs to meet the specific requirements of different application scenarios.

Technical support: Provide professional technical support and consulting services to help customers select and apply the most suitable box seals.

Product Specifications

Material: Choose different rubber materials according to application requirements, such as nitrile rubber, fluorine rubber, silicone rubber, etc.

Operating temperature range: Depending on the rubber material, the operating temperature range can vary from -60°C to +250°C.

Hardness range: typically between 70 and 90 Shore A to accommodate different working pressures and environments.

Size: A variety of standard sizes are available, and special sizes can also be customized according to customer needs.

Application examples

Our cassette seals have been successfully used in the following areas:

Hydraulic Cylinder Seals: Provide stable and reliable seals in hydraulic cylinders to prevent oil leakage.

Pneumatic device sealing: Reduce gas leakage and improve energy efficiency in pneumatic equipment.

Shock absorption of mechanical equipment: It is used as a shock-absorbing element in mechanical equipment to reduce noise and vibration.

Summary

With over 40 years of manufacturing expertise and a deep understanding of rubber sealing technology, our cassette seals provide precise, reliable sealing solutions for a wide range of industrial applications. We are committed to providing customers with high-performance, long-life cassette seal products through continuous technological innovation and strict quality control. Choose our cassette seals to provide optimal protection for your equipment and ensure stable and safe operation.

Frequently Asked Questions (FAQs)

Q: How are cassette seals different from O-rings?

A: The main difference between cassette seals (rectangular seals) and O-rings is their cross-sectional shape. O-rings have a circular cross-section, while cassette seals have a rectangular cross-section, which allows cassette seals to provide a larger contact area and a better seal with the same amount of compression.

Q: What should I pay attention to when installing box seals?

A: When installing the cassette seal, you need to ensure that the size and surface finish of the groove meets the product specifications to avoid distortion or damage to the seal during installation. At the same time, appropriate installation tools should be used and direct manual operation should be avoided to reduce the contamination of oil and impurities.

Q: What should be the compressibility and elongation of the cassette seal?

A: The compression ratio of cassette seals is generally recommended to be between 10% and 25%, and the elongation rate is between 3% and 5%. Correct compression and elongation rates help to ensure seal performance and extend service life.

Q: What are the material options for cassette seals?

A: Cassette seals can choose different rubber materials according to different application environments and media requirements, such as nitrile rubber (NBR), fluoroelastomer (FKM), silicone rubber (VMQ), etc., to meet the needs of oil resistance, chemical corrosion resistance, high-temperature resistance, etc.

Q: How does the hardness of a cassette seal affect its performance?

A: The hardness of the cassette seal will affect its sealing performance and wear resistance. Harder seals may provide better wear resistance, but hard seals may result in reduced sealing performance or damage to the seal faces. Typically, the hardness of the seal will be selected between 60 and 90 Shore A, depending on the application needs.

Q: How do I maintain and replace the cassette seal?

A: Check the condition of the seal regularly, and replace it in time if it is found to be worn, aged or damaged. When replacing seals, the sealing faces and grooves should be cleaned to ensure that the new seals are properly installed and performing at their best.

Q: What factors affect the life of cassette seals?

A: The life of a cassette seal is affected by a variety of factors, including operating temperature, pressure, chemical media, mechanical stress, etc. Proper installation, use, and maintenance can significantly extend the life of your seals.

Q: Are cassette seals suitable for dynamic sealing applications?

A: Yes, cassette seals are very suitable for dynamic sealing applications, such as sealing of hydraulic cylinders and pneumatic equipment, due to their structural stability and good sealing performance.