Seals

Not every machine breakdown makes headlines, but if you’ve ever had to shut down an entire system because of a leaking seal, you know how disruptive it can be. In many of the machines I’ve worked with—especially in automotive and heavy equipment—the smallest components often determine the biggest outcomes. That’s where the TG4 rotary shaft seal comes into play. What makes the TG4 oil seal different? The TG4 seal isn’t your typical oil seal. It has a three-lip structure that offers better protection than the standard two-lip versions (like TC or TB). This extra lip isn’t just for show—it helps deal with dust, moisture, and unexpected pressure surges that traditional designs often fail to handle. One client running hydraulic presses in a dusty environment made the switch and saw a drop in unplanned maintenance in just two months. Another key feature is the wave-shaped outer diameter. It’s subtle, but it improves grip and prevents rotation inside the housing—something that’s often overlooked until a seal spins out and causes a mess. Built for real-world use The TG4 uses nitrile rubber (NBR) for the lip and a steel core for structural support. This combination is known for its durability and oil resistance. You’ll find seals like these in gearboxes, shock absorbers, pump shafts, and axles. While FKM is an option in higher heat scenarios, NBR tends to be the go- to for most users thanks to its balanced performance and price. Inside, a spring keeps the lip under tension, which is crucial if the shaft speed fluctuates or if you're dealing with pressure spikes. When should you consider TG4? From what we’ve seen in the field, TG4 performs well in: Off-road vehicles and construction machinery, where dust and vibration are nonstop. Gear-driven equipment with long duty cycles and limited shutdown windows. Hydraulic motors and pumps, where even a small leak can cause major losses. Energy systems, such as wind turbines or generators, where long-term reliability matters. If your equipment isn’t sitting in a climate-controlled lab but out there in mud, dust, or oil mist, this seal has likely been designed with your challenges in mind. Not just another spec sheet We’ve sold TG4 seals to dozens of countries, and while we keep over 10,000 sizes in stock, customization is where we really shine. Need a specific lip material? A different spring tension? Slightly oversized for an old shaft? No problem. We’ve seen some strange setups over the years, and we usually find a solution. One example: a customer in South America needed TG4-type seals for an outdated turbine drive. None of the catalog specs fit. We reverse-engineered their housing dimensions and sent a batch of custom units. They’ve been using them ever since. Why work with DEDE? We’ve been in this business for over three decades. Unlike trading platforms that just ship parts, we actually design and produce our seals. That means we know what goes into each one—and we can stand behind their performance. What we offer: Fast dispatch on common sizes Fully customized designs for special applications Engineering support when you need to troubleshoot or upgrade your system Competitive pricing without cutting corners on materials Final thoughts The TG4 rotary shaft seal isn’t flashy. But if you’re in an industry where downtime costs money, it’s one of those parts you don’t want to cut corners on. We’ve seen it outperform traditional seals time and again—especially where other designs fell short due to dust, vibration, or heat. If you’re unsure whether TG4 is right for your setup, get in touch. We can take a look at your working conditions and help match the right material and structure. At the end of the day, a good seal is the difference between weeks of smooth operation and an unexpected repair job. The TG4 helps tip the odds in your favor.

Minimum Order: 500

Have you ever wondered what helps many machines operate smoothly day after day, often under intense pressure and temperature? You might not give it much thought, but the BASL oil seal is doing a lot of the heavy lifting behind the scenes. This small, often overlooked part plays a critical role in keeping machines running efficiently by sealing in lubricants and keeping out dirt, dust, and other harmful particles. Why BASL Oil Seals Deserve Attention There’s a good reason why many industries rely on BASL oil seals. Unlike basic seals, the BASL version features a double-lip design: one lip keeps the lubricant in, while the second lip acts as a barrier against contaminants like dust and moisture. Together, they offer a smart, practical solution to protect rotating shafts in a wide range of machinery. At the heart of the design is a reinforced metal frame wrapped in flexible rubber. The sealing lip maintains firm contact with the rotating shaft, while the dust lip prevents outside particles from entering. This dual function makes BASL oil seals especially effective in demanding environments where single-lip designs often fall short — like high-speed, high-temperature, or high-pressure conditions. Not All BASL Oil Seals(TC BASL Oil Seal) Are the Same — Material Makes a Difference Different working conditions call for different materials, and BASL oil seals are available in several types to suit various applications. Two of the most commonly used materials are: Fluororubber (FKM): Known for its excellent resistance to heat and chemicals, FKM is ideal for sealing systems in chemical plants, oil refineries, and high- temperature equipment. It holds up well even under extreme thermal conditions. Nitrile rubber (NBR): With great oil and abrasion resistance, NBR is widely used in automotive gear systems, hydraulic components, and general industrial machinery. It offers a balance of performance and affordability, making it a popular choice for everyday applications. Each material brings unique strengths, so selecting the right one depends on your specific working environment — whether it’s dealing with heat, pressure, chemicals, or all of the above. Standard Sizes or Custom-Made — We’ve Got You Covered At NQKSF, we understand that not every piece of equipment works with off-the- shelf parts. That’s why, in addition to maintaining a large inventory of standard BASL oil seals (over 10,000 specifications available), we also provide fully customized sealing solutions. Got aging machinery that needs a hard-to-find size? Working in extreme conditions that require a special material? Our experienced engineers are here to help. From material selection and structural design to testing and final delivery, we’ll make sure your seals are precisely maBASLhed to your system’s requirements — not just in theory, but in practice. Trusted by Clients in 80+ Countries With more than 30 years in the sealing industry, NQKSF has earned a reputation as a reliable partner in sealing solutions. Our products are used in industries ranging from automotive and agriculture to energy, mining, and heavy machinery. To date, we’ve shipped to customers in over 80 countries, and our global reach continues to grow. But we’re not just selling products — we’re providing ongoing technical support and solutions that help reduce long-term maintenance costs. We work closely with our clients to optimize sealing performance, improve equipment stability, and extend service life. BASL Oil Seals: Small Components, Big Impact At first glance, a BASL oil seal might seem like a small and simple part. But when it comes to machinery performance, it plays a big role in keeping things running smoothly. With the right material, a well-thought-out design, and proper installation, BASL oil seals can help prevent leaks, reduce wear, and minimize downtime. At NQKSF, we’re proud to provide not only reliable, high-quality products, but also the custom engineering support that helps our customers solve real-world challenges. Whether you need a standard seal for regular maintenance or a custom solution for a unique application, our team is ready to help you get the job done right. BASL oil seals are more than just spare parts — they are essential tools for machine longevity and reliability. At NQKSF, we’re committed to providing sealing solutions that meet the demands of modern industry, from conventional machinery to extreme operating conditions. With decades of experience, global service capabilities, and a problem-solving mindset, we’re ready to be your trusted sealing partner — now and in the future.

Minimum Order: 500

In the actual work site, many times you want to find an O-ring of the right size - but you may not be able to find it. Especially when you encounter some non-standard size sealing grooves, or old equipment suddenly leaks oil, you need to replace a ring, and wait for molded parts? That will delay things a lot. At this time, o-ring cord are particularly useful. Cut as long as you want, and stick it with special glue to form a circle immediately. If you have some experience, you can get it done in ten minutes and use it on site. Although it is mainly used in static sealing places, its emergency response ability is awesome. Where will it be used? You can guess but you may not have guessed it all To put it bluntly, almost as long as there is a liquid to be sealed and a gas to be prevented from leaking, it is possible for it to play a role. Like hydraulic systems, gearboxes, pumps, valves, and even wind power equipment, sewage treatment plants, and auto repair workshops, these places often see the shadow of o ring cord. Many times, a roll of wire can replace dozens of types of O-rings. Maintenance masters, equipment managers, and field engineers all love it. It is convenient, easy to use, and inexpensive. There are many materials, and it is important to choose the right one. There are many o-ring cord materials on the market, and the common ones are as follows: NBR nitrile rubber: oil-resistant, enough for general equipment, fuel, and hydraulics; FKM fluororubber: heat-resistant and corrosion-resistant, suitable for high temperature and acid-base media; There is really no universal answer to material selection. It depends on the equipment conditions, such as temperature, pressure, type of medium, and where you want to seal it. Don't just think of it as a wire, we treat it as a "live part" At DEDE, we have been in the sealing industry for more than 30 years. This o- ring cord is a rubber wire, but we don't treat it as a "consumable". If you come to ask us for goods, we won't just ask you how many diameters you want and send a courier. We will ask you clearly what medium you are sealing, whether it is static or dynamic, whether it is positive pressure or negative pressure, or whether there is a temperature difference shock. If you really want to fit the working conditions, you have to consider the materials, hardness, bonding method, and groove type at once. This job is no easier than making an engine. A little inventory, dozens of models This is quite interesting. Some customers used to have dozens of different types of O-rings in their warehouses, which not only took up space, but some models were covered with dust all year round. But after using o ring cord, the situation is different. We provided them with several commonly used diameters of wire, plus a small bonding tool, which can basically cope with more than 80% of maintenance needs. The inventory has been reduced, and the efficiency has been improved. Where are the customers? From small workshops to large projects The customers we serve actually span a wide range. Some people open small repair shops, and some people are working on wind turbine blade transmission systems. Some projects are hydropower stations in remote mountains, and some are instrument seals in highly corrosive environments on the coast. What they have in common is that they are reliable in sealing, easy to maintain, and do not cause any delays. Under such demand, O-type strips become particularly cost-effective. The end Don't underestimate a rubber wire. If it is selected incorrectly or connected incorrectly, the entire equipment may leak, stop, or have an accident. But if used well, it can help you solve many things that would otherwise be very troublesome. o-ring cord are not complicated, but there are many tricks. We DEDE have been in this business for a long time, and have seen many customers go from "no idea" to "use it smoothly". If you don't understand any section of wire selection, size, bonding, or material, come and talk to us, don't grope around on your own. Sometimes, a suggestion may be more useful than a hundred sealing rings.

Minimum Order: 1 bags

You may not have noticed it, but it is an indispensable role in many mechanical equipment. We are talking about the o ring core series. As the name suggests, its cross section looks like an "O", and the name couldn't be more straightforward. Although it is just a seemingly simple round rubber strip, its performance in sealing occasions makes many engineers willing to put it in the first place. Why? There are really many reasons. Why do many people use it? One of the great advantages of the o-ring core series is: flexibility and strong adaptability. Unlike those molded o-ring of fixed sizes, this wire-like o-ring core can be cut, that is, one roll after another, and you can cut it as long as you want. After bonding into a circle, it can also be used in many non- standard groove structures, which is particularly convenient for on-site processing. This can be seen in the value of emergency repairs. Sometimes, you urgently need an O-ring of a special size, but there is none in the warehouse. At this time, cut a section of the o-ring core, glue it on the spot, and the problem is solved. It is very practical for industries such as wind power, metallurgy, and water treatment, where the maintenance rhythm is tight and downtime will affect the benefits. This solution is particularly convenient, but it should be noted that the extrusion molding process makes its cross-sectional tolerance greater than that of the full-molded seal. This o-ring core bonded seal ring is more used for static sealing. If it is a high-speed rotating shaft, it is recommended that you choose compression molding, which will be more stable. Where can it be used? You may not think of more Don't underestimate this small seal, its "appearance rate" is higher than you think. From hydraulic systems to industrial robotic arms, from gearboxes to water treatment equipment, it can be seen. Pumps, valves, motors, gearboxes... As long as it involves sealing, it may come in handy. We have customers who are engaged in rail transportation, and there are also customers who are engaged in wind power, chemical industry, and automation equipment. They are also using o-ring cores to solve many on-site sealing problems. There is more than one material, and they adapt to different environments Different applications have different requirements for seals, and NQKSF provides o-ring core wires that are also "different in their strengths." Nitrile rubber (NBR): oil-resistant, cost-effective, and a "regular player" in industrial sites. Fluororubber (FKM): high temperature and chemical corrosion resistance, outstanding performance in energy, chemical industry, and engine. Each material has its own characteristics, and none of them is omnipotent, but as long as the right occasion is chosen, their performance is not bad. Our engineers often help customers choose suitable materials based on their equipment and working conditions. Not just "selling materials", we also understand engineering Many customers come to us not just to buy a roll of wire. They will ask: "My location has high temperature, large pressure fluctuations, and corrosive media. Do you have more suitable suggestions?" - Yes, we have a team of engineers to help you analyze this situation and make customized recommendations. From material selection, cutting length, bonding method, groove matching to test verification, we can participate. For some batch requirements, we can also mass produce according to your drawings to ensure that each batch of sealing rings is tightly fitted. Standard inventory + customized service, flexible combination We have tens of thousands of common specifications in our inventory, which can meet the needs of most working conditions. For non-standard situations, the customization process can be started at any time, and the delivery is also very fast. We control the entire production system ourselves, and we are more assured of the delivery speed and quality control. Trust from more than 80 countries around the world · NQKSF has been in the sealing industry for more than 30 years. We are not the kind of factory that only produces standard parts, but we have our own technical system in material research and development, sealing solutions, and industrial chain management. · At present, our products have been exported to more than 80 countries on five continents around the world, and many customers are long-term international brands. There are also many equipment manufacturers who regard us as engineering partners for joint project development. In summary, why choose NQKSF is o-ring core? 1. It can be cut as needed, and can flexibly meet various size requirements on site; 2. There are many material options, covering everything from normal temperature oil resistance to high temperature chemical corrosion resistance; 3. Save inventory, not picky about groove type, suitable for maintenance conditions; 4. Provide on-site bonding tools and technical support, more worry-free; 5. From a wire to a project plan, we can help you get it done. Although the seal is small, it has a big impact. If you choose the right one, it will not only save trouble, but also reduce maintenance costs and extend the life of the equipment. NQKSF, as a team dedicated to seals, is willing to put these experiences into practice with you. If you are not sure about a certain size or material, our engineers can always contact you to help you find a suitable solution.

Minimum Order: 1 bags

X-rings, also known as star rings due to their distinctive X-shaped cross- section, represent a thoughtful upgrade from the traditional O-ring. While both serve the purpose of sealing, the X-ring stands out for its refined design— specifically the four sealing lips and a small lubrication cavity in the center. This unique structure helps reduce both friction and starting resistance, making it ideal for dynamic applications. One of the often-overlooked advantages of X-rings is the positioning of the flash line—it sits in the recessed area of the cross-section, which not only improves the seal but also reduces the chances of leakage. In other words, the X-ring takes everything good about the O-ring and pushes it one step further. A Smarter Choice for Demanding Applications X-rings can be used in a wide variety of environments. To ensure optimal performance, the material must be chosen based on factors like temperature, pressure, and the type of medium involved. It’s not just about choosing a rubber ring—it’s about matching the right material to the job. When setting up a system, engineers should factor in peak and continuous operating temperatures, the frequency of use, and in rotating applications, the heat generated from friction. These considerations will determine the service life and effectiveness of the seal. What Makes X-Rings a Better Performer? Unlike an O-ring, which only has one contact point, the X-ring offers four contact surfaces. This means pressure is distributed more evenly, reducing friction by up to 40% and significantly slowing wear over time. It’s a clear performance boost, especially in systems that cycle frequently. Where Do X-Rings Shine? You’ll find X-rings in some of the most demanding applications: Heavy-duty machinery: hydraulic cylinders in excavators and presses Industrial robotics and turbines: rotating shafts and spindles Aerospace systems: actuators in aircraft landing gear that face sudden pressure changes Automotive transmissions: dual clutch systems that require precise sealing Oil and gas: critical components like blowout preventers in offshore rigs Material Options for Different Needs Different environments demand different materials, and X-rings are available in several: NBR (nitrile rubber): cost-effective, reliable across a wide range of industrial uses (-40°C to +125°C) FKM (fluoroelastomer): excellent resistance to high temperatures and aggressive fluids (-20°C to +250°C) PTFE: ideal for low-friction, high-precision sealing in sensitive equipment Why DEDE’s X-Rings Stand Out As a certified high-tech enterprise recognized for “specialization, refinement, and innovation,” DEDE brings over 30 years of experience in sealing technology. We don’t just offer parts—we provide complete sealing solutions. Whether it's rapid prototyping for custom designs or supplying from our inventory of over 10,000 standard parts, our flexible production system meets global demand with speed and precision. Today, DEDE supports clients in over 80 countries with localized technical guidance, ensuring that our seals don’t just fit—they last. If you're unsure about the specifications or material choice for your application, our engineering team is ready to provide tailored advice. With X- rings, it's not about using just any seal—it’s about using the right seal.

Minimum Order: 500

In the global supply chain, a reliable and high-performing sealing solution is critical for the stability of mechanical systems. The o-ring series, widely used across industries, provides the foundation for leak-proof and pressure- resistant assemblies. Whether you operate in automotive manufacturing, energy infrastructure, or heavy industrial machinery, choosing the right o-ring can directly impact operational efficiency, maintenance costs, and equipment safety. what makes the o-ring series essential O-rings are circular elastomeric seals designed to prevent the passage of liquids or gases between machine parts. Their compact shape and elastic properties make them ideal for both static and dynamic applications. Depending on the environment, o-rings can be customized in terms of: material: such as nitrile (nbr), fluorocarbon (fkm/viton), silicone (vmq), epdm, and more hardness: typically measured in shore a temperature range: from -60°C to +250°C depending on material pressure tolerance: varies by application, especially in hydraulic and pneumatic systems Each specification is selected based on working conditions such as chemical exposure, pressure levels, thermal expansion, and movement frequency. DEDE provides full-service sealing solutions With over three decades of expertise in the sealing industry, DEDE offers a complete solution package for global B2B clients: standard stock availability: our warehouse covers over 10,000 o-ring and oil seal specifications, allowing fast delivery for urgent needs custom-made development: we offer end-to-end customization—from material engineering and structure design to precision molding and pressure testing technical support: DEDE’s senior engineers help clients optimize sealing performance and reduce failure rates, particularly in complex or high-risk systems Whether you're dealing with oil pumps, electric motors, gearboxes, or robotic systems, our experts work with your team to ensure the sealing solution fits the precise demands of your machinery. why global buyers choose DEDE DEDE is more than just a manufacturer—we are a solution provider. Our key advantages for international B2B partners include: in-house production: DEDE owns and operates a physical smart factory equipped with automated molding and testing equipment certified innovation: we are a provincial-level innovation center and recognized high-tech enterprise, with several patented seal technologies broad international reach: products are exported to over 80 countries and are trusted by global equipment brands all-in-one inventory: from small o-rings to large industrial seals, our full catalog reduces the need to source from multiple suppliers Our focus on long-term partnerships means we support your procurement team with consistent quality, technical transparency, and after-sales service. applications that rely on the o-ring series The versatility of DEDE’s o-ring series allows them to perform reliably in various high-demand sectors: automotive: fuel systems, engine seals, brake and suspension units industrial automation: pneumatic actuators, cylinders, and control valves energy and oil field: pumps, turbines, and pipe systems in oil and gas industries agricultural machinery: hydraulic systems, water pumps, and gearboxes home appliances: water filters, pressure regulators, and vacuum systems aerospace and transport: sealing units for aircraft, trains, and maritime engines Each application places unique demands on seal integrity, temperature resistance, and longevity—challenges that DEDE’s engineering and material selection address head-on. In global industrial procurement, choosing a reliable o-ring supplier can make the difference between consistent performance and unexpected downtime. With DEDE, clients gain access to a trusted brand with deep technical expertise, full in-house manufacturing, and a ready-to-ship product range. Whether you're sourcing high-volume standard o-rings or need non-standard custom parts, DEDE is your ideal long-term sealing partner.

Minimum Order: 1000

Bolt holes and threaded joints may appear trivial, yet unsealed they lead to fluid loss, air ingress, and inefficiency. Bonded seals are the simple fix. DEDE is dual workhorse line—self‑centering or non‑self‑centering—ensures every connection holds tightly. What Makes Them Special? Self‑Centering Bonded Seals: Fixes automatically in the bore, making assembly fool-proof, even in field service Non‑Self‑Centering Bonded Seals: Ideal for flush mounting and full compression sealing Key Specs Materials: Rubber types—NBR, HNBR, FKM—bonded to steel or stainless cores Temperature range: -40 °C up to +250 °C depending on rubber Pressure capability: Up to 40MPa in demanding oil/hydraulic circuits Where You’ll Find Them Pumps, motors, valves in machinery and robotics Gearbox drain/fill ports in automotive and railway vehicles Cylinder head plugs in automotive and industrial engines Hydraulic valve manifold plates in wind turbines Heavy-duty equipment in construction, mining, agriculture DEDE – More Than Just Seals Stock: 10K+ O‑rings and seals ready to ship Custom: Tailor-made bonded seals from initial design to lab testing Tech support: 30+ years of sealing problem-solving know-how Brand Highlights Own mold shop and bonding plant for consistent quality Certified as High‑Tech Enterprise, contributing to China’s seal industry cluster Serving global markets in Asia, Europe, Americas with reliable supply The TakeawayFrom the workshop to the factory floor, from prototype to production—DEDE is bonded seals lock down your system. Whether self‑centering or not, they keep hydraulic systems leak-free and operators worry-free.

Minimum Order: 500

　　As industrial hydraulic and heavy-duty equipment reach higher pressure ratings, conventional oil seals are increasingly pushed beyond their design limits. The TCN High‑Pressure Oil Seal Series, developed by NQKSF (ShanFeng), provides a robust sealing solution engineered for high‑pressure environments, protecting equipment and minimizing maintenance cost. 　　Engineering Challenges in High‑Pressure Environments 　　High‑pressure systems face multiple simultaneous challenges: 　　Frequent pressure spikes common in hydraulic cylinders and actuators 　　Rapid temperature variations that strain standard elastomers 　　Dust, dirt, and fluid contamination accelerating seal wear and leakage 　　The TCN series addresses these through its advanced structural design and material selection, significantly enhancing reliability. 　　Product Features 　　Cloth‑reinforced skeleton for enhanced resistance to pressure deformation, maintaining integrity under up to 70 MPa transient loads 　　Dual‑lip or tri‑lip geometry—main lip for oil sealing, secondary lips for dust and fluid exclusion 　　High-performance elastomer compounds (NBR, FKM, PTFE) tailored for temperature, chemical resistance, and fluid compatibility 　　Precision molding and tight shaft interface fit minimizing leakage and friction 　　Optimized for longevity in hydraulic machinery, wind turbines, agricultural equipment, and metalworking applications 　　Recommended Applications 　　Hydraulic pumps, cylinders, and motors in industrial and mobile systems 　　Gearboxes and actuators in construction machinery 　　Wind turbine pitch and yaw mechanisms 　　Mining and metallurgy hydraulic platforms 　　Agricultural machinery and heavy transport equipment 　　NQKSF is Comprehensive Support Services 　　Fast delivery from stock – Over 10,000 seal models including TCN series available for immediate dispatch 　　Custom seal development – Material selection, CAD design, lab testing, and pilot production tailored to customer requirements 　　Technical design support – Utilizing CFD and FEM tools for sealing performance optimization, reducing leakage risk and lifecycle costs 　　Engineering Expertise 　　With over 30 years of sealing industry experience, NQKSF operates a fully integrated manufacturing facility, including: 　　In‑house compound formulation and rubber molding 　　Automated production and testing equipment 　　Provincial Technology Innovation Center and High‑Tech Enterprise certification 　　Global reach – exporting to over 80 countries with key partnerships across Europe, Southeast Asia, Middle East, and South America 　　Why Choose TCN High‑Pressure Oil Seals? 　　Exceptional pressure resistance to protect against shock-induced failures 　　Extended lifespan under abrasive and high-temperature conditions 　　Comprehensive customization and engineering support matched to precise application needs 　　Stable quality and supply chain backed by NQKSF is modern factory and certifications 　　For hydraulic engineers, OEMs, and industrial equipment suppliers seeking enhanced reliability, longer life, and reduced downtime, NQKSF is TCN High‑Pressure Oil Seal Series offers a proven, high-performance sealing solution. Contact us for technical data, pricing, or sample inquiries.

Minimum Order: 500

The UN rod seal series is a widely adopted sealing solution for hydraulic cylinders operating under demanding industrial conditions. Designed for reciprocating motion, UN seals ensure high sealing performance on piston rods, preventing hydraulic fluid leakage and keeping dust and contaminants out. This series includes three structural variations: UN – The standard U-cup shape seal used for most rod applications. UNS – A short variant designed for compact installation spaces. UHS – A long and reinforced type for heavy-load hydraulic systems. Made primarily of premium polyurethane (PU), these seals feature excellent wear resistance, elasticity, and sealing memory. DEDE also offers optional materials such as NBR or PTFE upon request for specialized needs. Application Fields The UN series is ideal for: Hydraulic cylinders in construction, agricultural, and industrial machinery Material handling equipment like forklifts and hydraulic lifts Excavators, loaders, bulldozers, and other construction equipment Automated production lines and robotic arms Agricultural equipment such as tractors and plows Energy sector machinery like wind turbines and hydraulic stations DEDE’s Service Advantage As a sealing technology manufacturer with over 30 years of experience, DEDE provides: Fast dispatch of standard parts – Over 10,000 sealing SKUs in stock, including O-rings and rod seals, with rapid delivery for urgent orders Full customization service – From material selection and structural design to production and testing, we tailor sealing solutions to match specific application requirements Technical optimization support – Our engineering team helps customers reduce sealing failure, extend service life, and improve machine efficiency Company Highlights Modern smart manufacturing base Recognized leader in the sealing industry Full model coverage with ready inventory Exported to over 80 countries Certified Provincial Innovation Center Specialized and Innovative Enterprise National High-Tech Enterprise Core player in the regional functional sealing product cluster Choose DEDE UN rod seals to enhance the reliability and performance of your hydraulic systems.

Minimum Order: 500

Introducing the TG4 Rotary Shaft Seal - the ultimate solution for all your sealing needs! Our TG4 Oil Seal is designed to provide durable and reliable performance, ensuring that your machinery operates at its peak efficiency. Made with high-quality NBR material, the TG4 Oil Seal is built to withstand the harshest conditions, providing a tight and secure seal that prevents leakage and contamination. Whether you are in the automotive, industrial, or agricultural sector, the TG4 Oil Seal is the perfect choice for your rotary shaft sealing requirements. What sets the TG4 Oil Seal apart from the competition is its innovative design and superior performance. The FKMTG4 Oil Seal is engineered to provide long- lasting protection against oil, water, and other fluids, making it an ideal choice for a wide range of applications. With its precision engineering and high-quality construction, the TG4 Oil Seal delivers unmatched reliability and performance, ensuring that your machinery operates at its best at all times. In addition to its exceptional durability and performance, the TG4 Oil Seal is also incredibly easy to install, saving you time and effort during maintenance and repairs. Its versatile design allows for seamless integration into a variety of equipment, making it a cost-effective solution for your sealing needs. Plus, with direct sales available, you can get your hands on the TG4 Oil Seal quickly and conveniently, ensuring minimal downtime for your operations. Don't compromise on the performance of your machinery - invest in the TG4 Oil Seal and experience the difference that high-quality sealing solutions can make. Trust in the reliability and durability of the TG4 Oil Seal to keep your equipment running smoothly and efficiently. Order your TG4 Oil Seal today and take advantage of our direct sales to get the sealing solution you need, when you need it.

Minimum Order: 500

Introducing our new and improved reinforced oil seal with fabric for pumps and motors! This innovative product is designed to provide superior protection and longevity for your equipment, ensuring that your machinery operates at peak performance for longer. The reinforced oil seal is constructed with high-quality materials and a durable fabric that enhances its strength and durability. This means that it can withstand the harsh conditions of industrial environments, including high temperatures, pressure, and friction, without compromising its effectiveness. Our reinforced oil seal is engineered to provide a reliable barrier against oil leaks, preventing costly downtime and maintenance. With its advanced design, it effectively seals the rotating shaft of pumps and motors, reducing the risk of lubricant contamination and ensuring smooth and efficient operation. In addition to its exceptional performance, our reinforced oil seal is easy to install, making it a convenient and cost-effective solution for your maintenance needs. Its reliable performance and long service life make it a smart investment for any industrial application. Don't settle for subpar seals that can compromise the integrity of your equipment. Upgrade to our reinforced oil seal with fabric and experience the difference in performance and reliability. Contact us today to learn more about how our innovative product can benefit your operations.

Minimum Order: 500

The fabric reinforced oil seal, also known as the cloth inserted oil seal, is designed for heavy-duty applications where standard rubber seals fall short. These oil seals integrate fabric materials such as canvas or aramid fiber into the elastomeric structure to provide enhanced strength, dimensional stability, and resistance to wear under high-pressure and high-load conditions. At NQKSF, we specialize in manufacturing a complete range of fabric reinforced oil seals suitable for heavy industrial systems, offering both standard inventory and fully customized sealing solutions. Key Product Advantages Reinforced structure with high resistance to extrusion and deformation Ideal for dynamic sealing applications involving shock, pulsation, or shaft misalignment Compatible with hydraulic oil, grease, dust, mud, and water-based fluids Wide operating range in temperature and pressure conditions Available in NBR fabric, FKM fabric, and polyurethane variants Main Applications of Fabric Reinforced Oil Seal The fabric reinforced oil seal is particularly suitable for the following industries: Hydraulic systems – especially in construction, mining, and agricultural machinery Heavy gearboxes and reducers Steel and metallurgy equipment Heavy-duty pumps and compressors Marine and ship engine systems Industrial robots and drive motors Earth-moving and off-road machinery These oil seals perform reliably under high stress and harsh environments, ensuring long-term sealing efficiency. NQKSF Service Highlights Fast delivery for standard sizes – More than 10,000 models in stock for immediate dispatch Complete customization services – We assist you from material selection and structure design to performance testing and production Technical support to optimize sealing systems – With over 30 years of expertise, our team helps reduce your maintenance cost and boost equipment uptime Company Advantages In-house manufacturing factory with precise control over quality and lead time Global presence – Exported to over 80 countries and regions Certified enterprise – Recognized as a High-Tech Manufacturer, Provincial Innovation Center, and Specialized SME Trusted by international brands in the sealing and machinery sectors Full model coverage – All major sizes and cross-sections available in stock Conclusion If you are looking for a sealing solution that withstands high load, pressure, and abrasive working conditions, fabric reinforced oil seal is the ideal choice. At NQKSF, we bring together material innovation, structural engineering, and production capability to help you achieve reliable performance in your heavy-duty systems. Feel free to contact us for samples, drawings, or technical discussions. We are here to support your sealing demands with professionalism and speed.

Minimum Order: 500

In the world of intelligent machinery and advanced automation, pneumatic components are the driving force behind precise and repeatable motion. At the center of this system lies the pneumatic seal—a key component that ensures system integrity, energy efficiency, and long term durability. DEDE has been at the forefront of pneumatic sealing technology for more than 30 years, serving customers across industries such as automation, robotics, energy, and smart manufacturing. Why Pneumatic Seals Are Critical Pneumatic seals must withstand high cycling speeds, fluctuating pressures, and the constant expansion and contraction of compressed air. In systems where downtime is costly and motion control is essential, seals must offer superior wear resistance and low friction properties. DEDE’s pneumatic sealing series is engineered for high performance, supporting industries that rely on: Linear actuators Pneumatic robots Air control valves Medical and packaging equipment Semiconductor manufacturing lines Integrated Services That Make a Difference DEDE’s approach to pneumatic sealing is not just about the product—it is about the entire system. The company offers a wide range of services that help ensure success at every stage of the sealing lifecycle: Fast delivery from stock – Tens of thousands of standard models available immediately, from oil seals to O rings. Complete customization – DEDE works with clients to define materials, design shapes, and conduct rigorous performance tests to meet non standard application demands. Engineering empowerment – DEDE’s experienced team supports customers by improving seal reliability, reducing leakage, and extending product life. A Manufacturing Leader with Global Reach DEDE is recognized as a provincial innovation center, a national high tech enterprise, and a key force within the sealing industry. With a full production base, intelligent processes, and high inventory levels, DEDE is capable of handling urgent demands and complex customization. Exporting to over 80 countries, DEDE has become a trusted name for pneumatic sealing components among engineers and equipment manufacturers worldwide. As more industries move toward intelligent automation, the demand for reliable and efficient pneumatic systems continues to grow. DEDE’s sealing technology, supported by a strong service framework and global distribution, is helping customers build smarter and more reliable equipment.

Minimum Order: 500

The VA/VS water seal series represents a high-performance sealing solution tailored for harsh industrial environments where water, oil mist, and particulates pose serious risks to mechanical systems. Manufactured from pure rubber, these seals are engineered for elasticity, resilience, and long-term sealing reliability. Whether in high-speed rotary applications or systems exposed to contamination, VA/VS seals deliver stable performance and extended service life. Material & Structure Material: Pure rubber (no metal framework) Design: VA/VS profiles provide axial or radial sealing under various installation configurations Features: High elasticity, excellent water resistance, corrosion tolerance, easy installation This fully rubberized design eliminates metal corrosion risks and ensures flexibility during dynamic equipment operation. Applications & Industry Use Cases The VA/VS water seals are suitable for applications where protection from water ingress or splash contamination is critical. Common use cases include: Application Example Equipment Pump systems Water pumps, submersible pumps Electric motors Industrial motors, servo motors Gearboxes Transmission housings, reducers Energy Wind turbines, hydroelectric equipment Automation Industrial robots, robotic arms Hydraulics Hydraulic actuators, cylinders Construction Excavators, loaders, compactors Agricultural machinery Harvesters, tractors Household appliances Washing machines, dishwashers These seals are not suitable for applications involving extremely high temperature or chemical exposure—fluoroelastomer or PTFE-based seals are better suited for such environments. DEDE Services for B2B Buyers DEDE is an industry-recognized manufacturer with full-service support for domestic and international customers.

Minimum Order: 100