Seals

In today's industrial landscape, the demand for reliable and durable sealing solutions is more critical than ever. Seals are essential components that ensure the efficient operation of machinery by preventing leaks, blocking contaminants, and maintaining the integrity of the systems they protect. One of the most trusted names in the industry is DEDE Oil Seal Factory, a leading manufacturer known for supplying high-quality, stock-ready NBR and FKM oil seals for various industrial applications. With a reputation for delivering durable, reliable, and high-performance seals, DEDE has become the go-to choice for businesses worldwide. The Importance of Oil Seals in Industrial Applications Oil seals are essential for ensuring that machinery operates smoothly and efficiently, particularly in harsh industrial environments. They help prevent the leakage of oils and other fluids while simultaneously keeping out dirt, dust, and other contaminants that could damage critical components. In machinery that involves high-speed rotation or intense friction, oil seals are crucial for extending the life of the equipment and reducing maintenance costs. The quality and durability of an oil seal are determined by the materials used in its construction. This is where DEDE Oil Seal Factory excels, offering two of the most widely used and reliable materials in the sealing industry: Nitrile Butadiene Rubber (NBR) and Fluorocarbon Rubber (FKM). NBR Oil Seals: A Reliable Choice for Industrial Applications Nitrile Butadiene Rubber (NBR) is one of the most commonly used materials for oil seals due to its excellent resistance to oils, fuels, and hydraulic fluids. NBR oil seals are widely used in various industrial applications, from automotive engines to hydraulic systems, because of their strong performance in moderate temperature ranges and resistance to chemical exposure. DEDE's NBR oil seals are particularly popular because of their durability and excellent sealing properties, even in challenging environments. Whether used in heavy machinery, compressors, or other industrial equipment, these seals offer long-lasting protection against leakage and contamination. With DEDE's stock of NBR oil seals, industries can rest assured that they are getting a high- quality, cost-effective solution to meet their sealing needs. FKM Oil Seals: Superior Performance in Extreme Conditions For more demanding applications that require high-performance seals, Fluorocarbon Rubber (FKM) is often the material of choice. FKM oil seals offer exceptional resistance to high temperatures, aggressive chemicals, and oils, making them ideal for applications in which regular rubber materials would fail. They are commonly used in industries such as aerospace, automotive, and chemical processing, where high levels of heat, pressure, and chemical exposure are a concern. DEDE's FKM oil seals provide superior sealing capabilities, even under the most extreme operating conditions. These seals can withstand temperatures up to 250°C and are highly resistant to solvents, acids, and alkalis. As a result, industries with stringent performance requirements turn to DEDE for reliable FKM oil seals that help protect sensitive equipment and maintain optimal performance in harsh environments. Stock Availability and Customization One of the key advantages of choosing DEDE Oil Seal Factory is its ability to supply stock-ready seals for immediate shipment. The company maintains an extensive inventory of NBR and FKM oil seals in a wide range of sizes, ensuring that customers can quickly find the right solution for their needs without long wait times. This is particularly beneficial for industries that require fast replacements or have urgent production timelines. Additionally, DEDE offers customization services for customers with specific sealing requirements. Whether it's adjusting the material properties, modifying the size, or tailoring the design to meet unique needs, DEDE's engineering team works closely with clients to deliver customized oil seals that perform optimally in specialized applications. Why Choose DEDE Oil Seals? High-Quality Materials: DEDE uses only premium-quality NBR and FKM rubbers, ensuring that each oil seal is durable, reliable, and capable of handling even the most challenging conditions. Fast Delivery: With an extensive stock of oil seals available for immediate shipment, DEDE ensures fast delivery times, minimizing downtime and maintaining the efficiency of your operations. Custom Solutions: DEDE's ability to provide customized solutions ensures that every customer gets exactly what they need for their unique industrial applications, whether it's a standard seal or a specialized design. Competitive Pricing: DEDE offers cost-effective sealing solutions without compromising on quality, making them a preferred choice for businesses looking for high performance at an affordable price. Global Reach: DEDE Oil Seal Factory serves clients worldwide, providing a trusted source for high-quality industrial seals across various industries. By opting for DEDE is high-quality oil seals, businesses can enhance the efficiency of their machinery and prevent costly downtime. With a commitment to excellence, fast delivery, and customized solutions, DEDE Oil Seal Factory is the trusted partner for industries worldwide looking for durable and reliable sealing solutions.

Minimum Order: 500

In industrial production, high-temperature sealing is one of the key links to ensure stable operation of equipment, prevent leakage accidents, and increase service life. Especially in the fields of metallurgy, chemical industry, automobile, aerospace, electricity, etc., seals must work for a long time in high temperature environment and still maintain good sealing performance and mechanical strength. Therefore, the correct selection of high-temperature sealing materials, reasonable design of structure, and adaptation in combination with specific working conditions are the core of high-temperature sealing applications. 1. Definition and characteristics of high-temperature sealing High-temperature sealing refers to sealing technology that can maintain sealing function in continuous or intermittent high temperature (usually above 180℃, or even more than 400℃) environment. Its characteristics include high temperature resistance, oxidation resistance, heat aging resistance, good thermal expansion stability and certain corrosion resistance. Commonly used for static sealing (such as flange gaskets) or dynamic sealing (such as rotating shaft seals). 2. Common high-temperature sealing materials Fluororubber (FKM): The temperature resistance range is generally between -20℃ and 250℃. It has good heat resistance, oil resistance, and chemical resistance. It is widely used in automobile engines, oil seals and other parts. Silica gel (VMQ): Excellent high and low temperature resistance, can work at -60℃ to 225℃, suitable for food, medical or electrical sealing. Polytetrafluoroethylene (PTFE): Can withstand high temperatures above 250℃, and has extremely strong chemical inertness, often used for corrosive media and high-temperature gas pipeline sealing. Graphite material: Sealing gaskets made of natural or expanded graphite, with an operating temperature of 500℃ to 650℃, used in high-temperature and high- pressure steam and hot oil systems. Metal spiral wound gasket: Composited with stainless steel and flexible graphite and other materials, suitable for high-temperature flange connection parts such as boilers and heat exchangers. III. Typical application scenarios of high-temperature sealing Automotive industry: Such as exhaust systems, engine cylinder heads, turbochargers, etc., seals need to withstand instantaneous high temperatures and thermal cycles. Petrochemical: Reactors, hot oil pipelines, etc. need to deal with the dual test of corrosion and high temperature. Power industry: The steam system of coal-fired or nuclear power plants has extremely high requirements for high-temperature sealing, and sealing failure may lead to serious safety accidents. Aerospace: Aircraft combustion chambers and propulsion systems need to maintain sealing under extremely high temperatures and high pressures. IV. Design and use suggestions Material selection based on the medium: The corrosiveness of the medium, the temperature fluctuation range and the working pressure need to be comprehensively considered. Optimize the structural design: The material is easy to soften and deform at high temperatures, and an anti-extrusion design should be added or a metal skeleton reinforcement structure should be used. Reasonable preload: The sealing structure needs to set a suitable installation preload to offset the gap changes caused by thermal expansion and contraction. Regular inspection and maintenance: High-temperature seals are prone to aging, and maintenance cycles should be set to replace aging parts in time. High-temperature sealing technology is not only an extension of materials science, but also an important guarantee for equipment safety and reliability. By selecting suitable high-temperature sealing materials, optimizing structures and installation methods, enterprises can achieve stable operation of equipment in harsh environments, reduce maintenance costs, and improve production efficiency. In the future, with the development of manufacturing, material innovation and technological progress in high-temperature sealing will bring more breakthroughs to industrial applications.

Minimum Order: 500

High-temperature sealing plays a vital role in a wide range of industrial applications where equipment operates under extreme heat. From aerospace engines and automotive exhaust systems to chemical reactors and power plants, effective sealing solutions are essential to ensure safety, maintain efficiency, and prevent leaks. Designing a reliable seal for high-temperature environments requires careful material selection, precision engineering, and a deep understanding of thermal dynamics. Challenges in High-Temperature Sealing One of the main challenges in high-temperature applications is material degradation. Many common elastomers lose elasticity, harden, or break down chemically when exposed to elevated temperatures. This can lead to leaks, system failures, and even safety risks. Additionally, thermal expansion, pressure fluctuations, and chemical exposure further complicate the sealing process. Another issue is compression set—a permanent deformation of the sealing material after prolonged exposure to heat and pressure. This can cause the seal to lose contact with mating surfaces, reducing its effectiveness. Material Selection for High-Temperature Seals To withstand high temperatures, materials must retain their mechanical properties while resisting thermal and chemical degradation. Some of the most widely used materials include: Fluorocarbon Rubber (FKM): Excellent heat resistance up to 250°C, as well as strong resistance to oils, fuels, and chemicals. Commonly used in automotive and industrial sealing. Silicone Rubber (VMQ): Known for its flexibility and stability at high temperatures (up to 225°C), making it suitable for static seals and applications requiring low compression force. Perfluoroelastomers (FFKM): Offering top-tier resistance to extreme heat (over 300°C) and aggressive chemicals. These are often used in semiconductor manufacturing and aerospace. Graphite and Metal Seals: For ultra-high temperatures (above 400°C), metallic or graphite-based seals are preferred, as they offer exceptional thermal stability and pressure resistance. Design and Application Considerations A high-temperature seal must not only resist heat but also accommodate thermal expansion, pressure variation, and dynamic motion if present. For dynamic applications, like rotating shafts, spring-energized seals or metal-cased lip seals are often used. In static applications, gaskets or O-rings with heat- resistant materials and proper gland design are critical. Additionally, installation surfaces must be properly finished and maintained to avoid damaging the seal. Regular inspections and replacement cycles should be part of maintenance routines, especially in systems exposed to continuous or cyclical high heat. Industries and Typical Uses High-temperature seals are widely used in: Aerospace: Jet engines, fuel systems, and environmental control systems. Automotive: Exhaust systems, turbochargers, and engine compartments. Chemical Processing: Reactors and high-temperature pipelines exposed to corrosive substances. Power Generation: Steam turbines and boilers. Oil & Gas: Drilling equipment and high-temperature pumps. High-temperature sealing is a specialized field that requires the integration of advanced materials, smart design, and reliable manufacturing practices. By selecting the right sealing material and configuration for the application, manufacturers can prevent system failures, increase equipment life, and improve operational safety. In critical industries where performance under heat is non- negotiable, investing in high-quality sealing solutions is not just advisable— it’s essential.

Minimum Order: 500

As modern machinery and equipment become more efficient and sophisticated, the importance of sealing technology becomes increasingly prominent. As an enterprise focusing on the research and development and manufacturing of sealing products, NQKSF Oil Seals has won wide recognition in the domestic and foreign markets with its professional strength and stable quality. This article will analyze the product characteristics and core advantages of NQKSF Oil Seals to help users gain a deeper understanding of its competitiveness in the field of sealing. 1. Product Features Diverse structures and strong adaptability: NQKSF oil seal products cover a variety of structural forms such as TC, TG, TCN, V-rings, skeleton oil seals, silicone rings, etc., which can meet the sealing needs under different working conditions, including rotation, reciprocating, static and other application scenarios. Excellent material and stable performance: According to different use environments, a variety of high-performance elastic materials such as nitrile rubber (NBR), fluororubber (FKM), silicone (VMQ), hydrogenated nitrile (HNBR) are selected, which have good high temperature resistance, wear resistance, and corrosion resistance, ensuring long-term use in complex environments. Precision process and stable size: high-precision molds and advanced vulcanization technology are used to strictly control product size tolerances, stable sealing effect, and effectively reduce the risk of leakage during equipment operation. 2. Core advantages Strong R&D capabilities: NQKSF has an independent technical R&D team that can quickly develop customized seals according to customer drawings or samples to meet various non-standard needs. Stable quality control system: From the entry of raw materials to the delivery of finished products, full-process quality inspection is implemented to ensure that each batch of products has consistent performance and reliable quality. Quick response and global service: The company has established a stable customer base in many countries and regions around the world, supporting customization, fast delivery and technical support services, which is particularly suitable for long-term cooperation with medium and large equipment manufacturers. Factory direct supply, superior cost performance: Relying on its own factory, NQKSF oil seals can effectively control costs, and at the same time provide competitive prices while ensuring quality, helping customers save procurement costs. 3. Wide range of applications NQKSF oil seals are widely used in industries such as automobiles, engineering machinery, agricultural equipment, petrochemicals, and power systems, and are adapted to harsh environments such as high temperature, high pressure, and high speed. Its high reliability makes it a long-term cooperative brand for many equipment manufacturers and repairers. Choosing a reliable seal supplier is not only a guarantee of product performance, but also a control of the company's long-term operating costs. NQKSF Oil Seals is constantly providing stable and lasting sealing solutions to global customers with its innovative structure, optimized materials, rigorous processes and efficient services, and is a trustworthy partner.

Minimum Order: 500

Are you in need of high-quality oil seals and rubber seals for your industrial or automotive applications? Look no further than DEDE Seal Technology Company! With our years of expertise and commitment to excellence, we are proud to offer a wide range of premium seals that are designed to meet the demanding needs of various industries. At DEDE Seal Technology Company, we understand the importance of reliable and durable seals in your machinery and equipment. That's why we have invested in state-of-the-art manufacturing processes and quality control measures to ensure that our seals meet the highest standards of performance and durability. Whether you need rotary shaft seals, hydraulic seals, or custom-designed seals, we have the expertise and capabilities to deliver the perfect solution for your specific requirements. What sets DEDE Seal Technology Company apart from other seal suppliers is our dedication to customer satisfaction. We work closely with our clients to understand their unique needs and provide personalized solutions that exceed their expectations. Our team of experienced engineers and technical experts is always ready to provide professional guidance and support throughout the entire purchasing process. When you choose DEDE Seal Technology Company as your seal supplier, you can expect not only top-notch products but also exceptional customer service and on-time delivery. We prioritize customer satisfaction and aim to build long- lasting relationships with our clients based on trust, reliability, and mutual success. So, why settle for subpar seals when you can have the best from DEDE Seal Technology Company? Contact us today to discuss your seal requirements and experience the difference that our superior products and services can make for your business. Choose DEDE Seal Technology Company for all your oil seals and rubber seals needs and take your operations to the next level of performance and efficiency!

Minimum Order: 100

Hydraulic Polyurethane (PU) Seals: Technical Specifications 1. Material Characteristics Composition: PU elastomers with customizable formulations, often reinforced with fiberglass/carbon fibers[3] Key Properties: Abrasion Resistance: 3-5x longer service life than NBR rubber Pressure Tolerance: Maintains sealing at ≤40MPa (enhanced grades) Temperature Range: -40°C to +100°C (short-term 120°C) 2. Performance Comparison AdvantageLimitation▶ Extreme wear resistance ▶ Inferior to FKM at >100°C ▶ Excellent dynamic sealing▶ Vulnerable to hydrolysis ▶ Cost-effective for heavy-duty use▶ Requires precise installation 3. Industrial Applications Primary Functions: Prevent fluid leakage in reciprocating systems Exclude contaminants in construction equipment Common Configurations: U-Cups: For piston/piston rod sealing UN Seals: Bidirectional pressure sealing UHS Series: High-pressure hydraulic cylinders 4. Selection Guidelines Dimensional Parameters: Example: UN 50×60×10 = 50mm ID × 60mm OD × 10mm thickness Chemical Compatibility: Avoid ester-based fluids and ketone solvents Not recommended for water-glycol systems >60°C Typical Service Life: 2-5 years in mining/construction equipment under proper maintenance

Minimum Order: 100

Are you tired of dealing with leaky washing machine seals? Look no further than NQKSF Seals Manufacturer! We are your one-stop shop for high-quality rubber seals for all types of washing machines. At NQKSF Seals Manufacturer, we understand the frustration of dealing with worn-out or damaged seals. That's why we offer a wide range of seals made from high-quality rubber materials to ensure a perfect fit and long-lasting durability. Whether you have a front-loading or top-loading washing machine, we have the right seal for you. Our seals are designed to withstand the harsh conditions of washing machines, including exposure to water, detergent, and high-speed spinning. With our seals, you can say goodbye to leaks and enjoy a worry-free laundry experience. In addition to our standard washing machine seals, we also offer custom sealing solutions to meet your specific needs. Our team of experts can work with you to design and manufacture seals that are tailored to your washing machine's unique requirements. Don't let leaky seals ruin your laundry day. Trust NQKSF Seals Manufacturer for top-quality rubber seals that will keep your washing machine running smoothly. Contact us today to learn more about our products and how we can help you keep your washing machine in top condition.

Minimum Order: 500

Seal rings are vital in preventing fluid or gas leakage across a wide range of equipment. The material of the seal ring largely determines its effectiveness and durability under specific conditions such as temperature, pressure, and chemical exposure. Below are the most common seal ring materials and their typical applications: · Nitrile Rubber (NBR): Ideal for mineral oils, lubricants, and mildly aggressive fluids. It performs well between –40°C and +120°C and is widely used in automotive, hydraulic, and general industrial applications due to its affordability and reliability. · Fluorocarbon Rubber (FKM): Known for outstanding resistance to high temperatures (up to +250°C) and aggressive chemicals. Commonly used in chemical plants, engines, and fuel systems where sealing performance is critical under extreme conditions. · Silicone Rubber (VMQ): Offers excellent flexibility and low-temperature resistance (down to –60°C). It is favored in food processing, medical devices, and electronic equipment that require high hygiene and environmental safety. · Ethylene Propylene Diene Monomer (EPDM): Resists steam, water, brake fluids, and ozone well. Frequently found in water treatment systems, solar heating units, and outdoor applications. · Polytetrafluoroethylene (PTFE): Chemically inert and resistant to almost all aggressive substances. With high temperature tolerance and low friction, it is suitable for chemical processing, pharmaceutical production, and cleanroom environments. · Hydrogenated Nitrile Rubber (HNBR): An upgraded version of NBR that provides enhanced heat resistance and mechanical strength. It performs well in high- pressure and dynamic sealing situations. Selection Advice: Choosing the right seal ring material requires consideration of multiple factors—operating temperature, fluid compatibility, pressure range, dynamic vs. static use, and expected lifespan. For standard conditions, NBR is often sufficient. In high-temperature or corrosive environments, FKM or PTFE is recommended. For food-grade or medical applications, VMQ or EPDM is more appropriate. Selecting the optimal material not only improves sealing performance but also reduces downtime and maintenance costs, ultimately enhancing overall equipment efficiency.

Minimum Order: 500

Agricultural machinery operates in high-intensity and complex environments, which places high demands on the sealing performance and durability of oil seals. Common oil seal materials include nitrile rubber (NBR), fluororubber (FKM) and acrylic rubber (ACM), which have good oil resistance, high temperature resistance and aging resistance, respectively, and are suitable for different working environments. In terms of models, the commonly used oil seal types for agricultural machinery are TC type (double lip with spring), SC type (single lip with spring) and cassette oil seals, which can effectively prevent lubricating oil leakage and external pollutants from invading. For example, the X24198, X24197, 24187, and 24188 oil seals provided by DEDE are widely used in the transmission systems of tractors, harvesters and other equipment. In addition, in response to highly polluted environments, DEDE SEAL Co., Ltd. has developed a special three-lip oil seal design that can be effectively used in heavily polluted environments and is often used in agricultural machinery and equipment. Choosing the right oil seal model and material can help improve the operating efficiency and service life of agricultural machinery.

Minimum Order: 500

Introducing our heavy truck gearbox oil seal and high load, high temperature wheel hub seal! Designed to withstand the toughest conditions, our seals are built to provide superior performance and reliability for heavy-duty vehicles. Our heavy truck gearbox oil seal is engineered to handle the intense pressure and heat generated by the transmission, ensuring that your gearbox remains properly lubricated and protected. With its high load capacity and durable construction, you can trust that our oil seal will keep your gearbox running smoothly and efficiently. In addition, our high load, high temperature wheel hub seal is designed to keep out dirt, water, and other contaminants, ensuring that your wheel hub remains properly sealed and protected. With its ability to withstand extreme temperatures and heavy loads, our wheel hub seal is the ideal choice for heavy truck applications. Whether you're hauling heavy loads or navigating challenging terrain, our seals are the reliable solution for keeping your heavy truck running at its best. Trust in the quality and performance of our heavy truck gearbox oil seal and high load, high temperature wheel hub seal for your heavy-duty vehicle needs. Don't settle for subpar seals that can't handle the demands of heavy truck operations. Choose our heavy truck seals for superior protection and performance. Contact us today to learn more about our heavy truck gearbox oil seal and high load, high temperature wheel hub seal!

Minimum Order: 500

Are you in need of industrial machinery oil seals that are both durable and reliable? Look no further! Our spot industrial machinery oil seals can be customized to fit your specific needs, ensuring that your machinery runs smoothly and efficiently. We understand that every piece of machinery is unique, which is why we offer a wide range of oil seals to choose from. Whether you need high temperature oil seals, low friction oil seals, or heavy-duty oil seals, we have the perfect solution for you. Our team of experts will work closely with you to understand your requirements and provide you with a customized oil seal that meets your exact specifications. We use only the highest quality materials and state-of-the-art manufacturing processes to ensure that our oil seals are of the highest standard. By investing in our customized oil seals, you can prolong the life of your machinery, reduce maintenance costs, and minimize downtime. Don't settle for subpar oil seals that compromise the performance of your machinery. Trust in our expertise and experience to deliver the perfect solution for your industrial machinery needs. Contact us today to learn more about how our spot industrial machinery oil seals can be customized to meet your specific requirements. We look forward to working with you and providing you with the perfect oil seal solution for your machinery.

Minimum Order: 500

Established in 1990 NQKSF has emerged as a prominent Chinese manufacturer specializing in the research, development, and production of oil seals and O- rings. With over 30 years of experience, the company offers a diverse range of sealing solutions tailored for various industries, including automotive, agriculture, construction, and heavy machinery . NQKSF is product lineup encompasses industrial oil seals, rubber rings, automotive oil seals, pneumatic seals, hydraulic seals, and specialized seals for washing machines and agricultural machinery . These products are crafted from high-quality materials such as NBR, FKM, and PTFE, ensuring durability and resistance to oil, heat, and high pressure . The company's commitment to quality is underscored by its adherence to international standards, including ISO 9001 and TS 16949 certifications . Utilizing advanced manufacturing equipment and SAP's ERP management system, NQKSF maintains efficient production processes and a robust inventory to meet global demand . NQKSF is dedication to innovation and excellence positions it as a reliable partner for businesses seeking high-quality sealing solutions. Their extensive product range and customization capabilities ensure they can meet the specific needs of various applications across multiple industries.

Minimum Order: 500

Established in 1990 DEDE Seal Co., Ltd. has become a leading manufacturer of high-quality industrial seals in China. With over 30 years of experience, DEDE specializes in producing a wide range of sealing solutions, including oil seals, rubber rings, and custom sealing products. These products are designed to meet the rigorous demands of various industries such as automotive, construction, mining, and agriculture. DEDE is commitment to quality is evident in their ISO 9001 and TS 16949 certifications, ensuring that each product meets international standards. Their state-of-the-art manufacturing facilities, equipped with over 200 advanced production and testing machines, enable them to produce more than 50 million units annually. Innovation is at the heart of DEDE is operations. They invest heavily in research and development to create seals that offer superior performance, durability, and resistance to extreme conditions. Their product range includes specialized seals for wind turbines, hydraulic systems, and washing machines, among others. DEDE is global reach and dedication to customer satisfaction make them a trusted partner for businesses seeking reliable sealing solutions. Their focus on quality, innovation, and customer service ensures that they remain at the forefront of the sealing industry.

Minimum Order: 500

Looking for high-quality industrial oil seals at wholesale prices? Look no further! Our NBR FKM oil resistant skeleton oil seals are the perfect solution for your machinery and equipment needs. Our oil seals are made with premium materials that are designed to withstand the harshest industrial conditions, providing excellent resistance to oil, heat, and abrasion. Whether you are in the automotive, manufacturing, or agricultural industry, our oil seals are the reliable choice for your sealing applications. We offer a wide range of sizes and styles to fit your specific needs, and our team of experts is ready to help you find the perfect solution for your equipment. With our competitive wholesale pricing, you can save money without sacrificing quality. Don't settle for subpar oil seals that can lead to costly downtime and repairs. Trust our NBR FKM oil resistant skeleton oil seals to keep your machinery running smoothly and efficiently. Contact us today to learn more about our wholesale industrial oil seals and how we can help you meet your sealing needs.

Minimum Order: 500