Mechanical Hardware

　　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

Electric self-priming oil transfer pump fuel diesel kerosene conveying A self-priming pump can be installed high and dry above the fluid level while automatically removing air from the suction line and filling it with liquid without manual priming. These pumps are designed to prime themselves quickly and efficiently and can continue operating even if the liquid supply is interrupted. CYZ-A Self-priming centrifugal oil pump is widely used to transport gasoline, kerosene, diesel oil, oil for aviation in oil warehouse, oil station, oil tanker, dock, tank truck, airdrome etc. It can also be used in chemical industry, pharmaceutics, brewage, electroplate, printing and dyeing, papermaking, electric power, mine etc. Medium temperature range: -20 Celsius degree to 80 Celsius degree Viscosity is no higher than 100 centipoise, Particles consistency can reach 30 percent. Pump casing: cast iron, bronze impeller, Explosion-proof motor (EXDIIBT4)

Minimum Order: 1 bags

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

Multistage centrifugal high-pressure pump Multistage pump is a pump with two or more impellers. It is the centrifugal pump which can achieve suction, compression, and exhaust by changing the volume of the pump chamber. Therefore, multistage pump is a variable volume centrifugal pump. Multistage centrifugal pump combines the inlet and outlet sections with the middle section through a pull rod. Its output water pressure can be very high, and it also relies on the rotation of the impeller to obtain centrifugal force. As a result, the pumped medium or material is extracted when the gas density reaches the working range of the mechanical vacuum pump, gradually obtaining a high vacuum. (Maximum head exceeding 125meters). Single stage pump is a pump with only one impeller and maximum head of only 125 meters. The basic structure of a multi-stage pump is composed of components such as the inlet section, outlet section, middle section, tail cover, impeller, pump body, pump shaft, bearing, sealing ring, stuffing box, etc. Multistage pumps can be used in many industrial sectors such as petroleum, chemical, mechanical, mining, light industry, pharmaceuticals, and food etc. Multistage pump can be vertical or horizontal structure and pump material can be cast iron or stainless steel to suitable to transfer different fluids.

Minimum Order: 1 bags

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