Mechanical Hardware

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

No leakage vertical self-priming pump Features: 1 - The pump adopts no leakage seal device of dynamic seal and auxiliary seal to replace the packing seal or mechanical seal. The sealing device has no friction and wear, and its service life is more than 10 times longer than that of traditional seals. It is the ideal pump to replace submerged pump, submersible pump, submersible sewage pump etc. 2 - According to the principle of vacuum pump, the pump adopts electric air control valve for self-priming. Self-priming performance is stable and reliable. 3 - The pump has self-priming function, high efficiency, energy saving, temperature resistance, pressure resistance and wear resistance etc. Pump structure: The pump has cone type, rectangular type, explosion-proof type, outdoor type and trolley mobile type. The choice can be made according to the installation space on the site. The explosion-proof type is suitable for flammable and explosive environment. The outdoor type is equipped with outdoor motor, and it can be used in outdoor situations. The wheeled mobile type can push the pump to any working site you need Pump material: The pump can be made of Cast iron, cast steel, stainless steel, reinforced polypropylene etc. Materials. Application: , WFB no leakage self-priming pump is widely used in municipal sewage engineering, pond breeding, power, chemical, metallurgy, medicine, food, fire protection, environmental protection, electroplating, water purification, municipal, national defense, textile, paper, mining, construction, and other industries.

Minimum Order: 1 bags

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

Horizontal monoblock centrifugal pump The pump can be made of cast iron, stainless steel, bronze etc. materials to convey different fluids/liquids The absolute concentricity of the pump shaft and the excellent dynamic and static balance of the impeller ensure smooth operation and absolutely no vibration. Hard alloy mechanical seal ensures no leakage in the transmission of different medium. The structure is compact, easy to maintain, and easy to replace seals and bearings. flow range: 1.5 ~ 2000m3 / h, lift range: 5 ~ 125m The pump can convey clean water, hot water, corrosive liquid, gasoline, kerosene, diesel and other oil products or flammable and explosive liquids up to 120 degree Celsius. Pump can be driven by explosion-proof motor or normal motor

Minimum Order: 1 bags

RY Hot oil circulating pump for thermal fluids heating system Horizontal, Single stage single suction cantilever foot support structure, the inlet of pump is axial suction, the outlet is vertical upward. The pump is installed on the baseplate together with the motor. Double end ball bearing support with the front end with lubricating oil and the rear end lubricated with lubricating grease. There is a guide pipe in the middle for observing the sealing recovering thermal oil, Air- cooled for natural heating dissipation The combination of packing seal and mechanical seal is adopted. High-temperature resistant packing seal and hard alloy mechanical seal for the good sealing under high temperature conditions. PTFE lip seal. The pump is used to transfer high temperature liquids without solid particles. The fluids temperature up 350 degrees Celsius. Pump material: cast iron, stainless steel etc. Application Widely used in hot oil furnace oil supply circulation systems and hot oil heating circulation systems in industries such as petroleum, chemical, rubber, plastics, pharmaceuticals, textiles, printing and dyeing, road construction, food, and machinery etc.

Minimum Order: 1 bags

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

Power centrifugal electromechanical pump Power pump or electromechanical centrifugal pump is used for conveying clean water and other liquids with physical and chemical properties similar to clean water. It is the high-efficiency and energy-saving pump designed and manufactured according to ISO2858 standard. Pump and motor are for close coupling type. Pump shaft absolute concentricity and impeller excellent static and static balance for steady working. Hard alloy mechanical seal, no leakage. Low noise, small volume, single structure. It is easy and convenient to replace seals and bearings. Application It is suitable for industrial and urban water supply and drainage, high-rise building pressurized water supply, garden irrigation, fire pressurization, long- distance transportation, HVAC refrigeration cycle, bathroom and other hot and cold- water cycle pressurization and equipment supporting, lift water pump Medium: Clear water or other liquid similar in physical and chemical properties to clear water. Medium temperature : -10℃ to 120℃ Ambient temperature : ≤40 °C Working pressure : ≤ 1.6mpa Power: 0.18kW-160KW Flow rate: 1.5m3/ H to 2000m3 /h Head: 5m to 125m

Minimum Order: 1 bags

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

Open impeller (3-blade or 6-blade) Pump material: stainless steel SS304, SS316, 316L Shaft seal type: sub-impeller dynamic sealing, single mechanical seal, double mechanical sealing and packing sealing. Structure: back-pull-door, easy for maintenance, horizontal, single stage, end suction centrifugal Bearing lubrication adopts grease lubrication or oil lubrication. Pump is used to transfer pulp, syrup, starch, slurry, sewage etc

Minimum Order: 1 bags

Chemical industrial pumps Our chemical industrial pumps can be made of metal such as stainless steel, bronze, titanium alloy etc. materials or plastic such as PTFE/FEP/PVDF fluoroplastic, fiberglass reinforced plastic, polypropylene plastic etc. or metal lined with plastic. Chemical pumps are widely used to convey acid, alkali, salt etc. corrosive solution. Fluoroplastic pump is used to convey sulfuric acid and has the economic cost. Polypropylene and fluoroplastic pumps are suitable to convey hydrochloric acid. Fluoroplastic pump and titanium alloy pump is suitable to convey nitric acid. Stainless steel pump and fluoroplastic pump is suitable to convey acetic acid. Stainless steel and plastic pump can be used to convey alkali such as sodium hydroxide. Stainless steel SS316 pump and bronze centrifugal pump is suitable to convey sea water or brine etc. High temperature liquids pumping usually need the pumps equipped with cooling devices. When the liquid below 120 degree Celsius is conveyed, the pump is lubricated and cooled by the pumped liquids. CZ and IH Stainless steel chemical centrifugal pumps adopt suspension structure and the pumped liquids can be up 160 degree Celsius. IHF fluoroplastic liner pump can pump the liquid up to 200 degree Celsius. When the liquid at the temperature ranges from 120 degree Celsius to 300 degree Celsius is pumped, the pump cover should have cooling chamber and seal should also have cooling liquid with double end faces mechanical seal. CQB-G high temperature magnetic pump can pump the liquids below 280 degree Celsius. For the high temperature medium above 300℃, not only the pump head part needs to be cooled, but also the suspension bearing room should be provided with a cooling system. The pump structure is generally in the form of center support, and the mechanical seal is best to use metal bellows type.

Minimum Order: 1 bags

Industrial machinery is the backbone of modern economies, and reliable sealing plays a critical role in ensuring efficiency and minimizing downtime. Stainless Steel PTFE oil seals, manufactured by DEDE, are engineered for high-performance applications, particularly in motors, pumps, and gearboxes. Why Stainless Steel PTFE Oil Seals Are Essential Traditional rubber seals often fail in extreme environments due to high temperatures, chemicals, or pressure. However, stainless steel PTFE oil seals offer: High Chemical Resistance: PTFE material resists a wide range of chemicals, oils, and solvents. Heat Resistance: Capable of withstanding temperatures up to 250°C without compromising sealing effectiveness. Low Friction: Reduces mechanical wear and improves overall system efficiency. Extended Lifespan: Provides long-lasting protection, minimizing the need for frequent maintenance or replacement. These features make stainless steel PTFE oil seals ideal for systems that operate under extreme thermal, pressure, and chemical conditions. Key Industries Using Stainless Steel PTFE Oil Seals Pumps and Motors – Protect critical parts like bearings and shafts from contamination and leaks. Gearboxes and Transmissions – Ensure the smooth operation of rotating components and prevent oil leakage. Hydraulic Systems – Maintain system pressure while preventing external contaminants from entering. Aerospace and Marine – Ensure sealing integrity in high-pressure, high- performance applications. DEDE’s Comprehensive Sealing Solutions DEDE provides more than just oil seals — we offer a comprehensive approach to sealing system reliability: Standard Parts with Quick Shipment – Over 10,000 types of seals in stock for fast delivery worldwide. Fully Customizable Solutions – Tailor seals to meet the specific needs of your machinery and systems. Advanced Technical Support – Our team of experts works with you to optimize your sealing system and reduce operational costs. Why DEDE is the Trusted Choice As a leading global sealing solutions provider, DEDE has: 30+ years of experience in the sealing industry. Manufacturing capabilities that meet international standards. Extensive global distribution, ensuring that clients across 80+ countries receive consistent, high-quality products. For industries requiring reliable, durable, and high-performance sealing, DEDE’s Stainless Steel PTFE Oil Seal Series provides the solution. With a focus on quality, customization, and support, DEDE continues to be a trusted partner for pumps, motors, gearboxes, and more.

Minimum Order: 500

WQ Automatic coupled submersible sewage pump The automatic coupling installation system is mainly composed of fast interface, drainage base, guide rail, guide positioning bracket and so on. During installation, the pump body and the fast interface are closely connected by bolts. The drainage base is first fixed in the pool by anchor bolts. The fast interface drives the pump to slide down along the guide rail, and the drainage base is automatically coupled together through the automatic-coupling sealing surface. After installation, the pump body and motor parts, relying on the pump body outlet flange with the inlet flange connection, the export outlet of submersible sewage pump and the coupling base of connection between the rubber sealing ring seal, submersible sewage pump coupling system by hanging in the air, and using its own weight to seal pressure, ensure reliable sealing between the pipelines. WQ automatic coupled submersible sewage pump has the impeller of single flow channel or double flow channel to handle the fluids with solid particle or fiber etc. impurity. The pump has the advantages of non-blocking, automatic installation, automatic control etc. Submersible sewage pump application: 1 - Municipal works and construction sites 2 - Sewage discharge in residential areas 3 - Sewage discharge from hospitals and hotels 4 - Urban sewage treatment plant drainage system 5 - Drainage station of civil air defense system, water supply device of waterworks 6 - Discharge of seriously polluted sewage from factories and businesses

Minimum Order: 1 bags

In the world of rotating machinery, where shaft sealing is critical to prevent lubricant leakage and external contamination, the EG End Cover Oil Seal Series offers a reliable solution trusted across various industries. Manufactured under the DEDE brand, these oil seals are engineered for durability, adaptability, and long-term performance in high-demand environments.

Minimum Order: 100