Mechanical Hardware

Corrosion resistant chemical pump for alkali liquid IJ type single stage single suction cantilever chemical centrifugal pump is a new product optimized and designed based on the IH series chemical pump, referring to the latest foreign technology and combining with the actual use of users. Its rated performance and installation size comply with the ISO2858 standard, and its manufacturing technical conditions comply with the ISO5199 standard. It is mainly suitable for the transportation of slurry with a solid content less than 50% and crystal impurities in chemical processes. Compared with IH pumps, the structure of IJ chemical pumps has the following characteristics: 1 - Shortened the cantilever of the impeller and thickened the diameter of the shaft; 2 - Asymmetric cross-section volutes and pump casings without mouth rings; 3 - Three imported bearings are used; 4 - Equipped with a new type of seal similar to foreign advanced double face mechanical seals or packing seals. Due to the above structure, the pump has the following advantages: 1 - It can transport high viscosity or solid containing media, and the efficiency of the pump is higher than that of the IH chemical pump; 2 - The asymmetric cross-section volute reduces the impact loss of fluid and shortens the size of the pump casing; 3 - Increasing the strength of the shaft reduces the deflection of the rotor, resulting in stable operation and long sealing life; 4 - The impeller nut is integrated with the impeller, improving the inlet conditions of the pump and enhancing the anti cavitation performance of the pump; 5 - Advanced shaft seal form ensures better sealing effect and reduces pump leakage; 6 - The clearance of the pump can be adjusted without disassembling the pump casing and impeller, reducing maintenance time and saving maintenance costs. Applicable fields: alkali production, salt chemical industry, petrochemical industry, paper mills, pulp industry, refineries, coal chemical industry, power plants, pharmaceutical industry, sugar industry, steelmaking plant, water treatment coating industry (degreasing, phosphating, electrophoresis and other processes)

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

Centrifugal pump with Small vacuum storage siphon tank Siphon tank/bucket, also known as vacuum tank /bucket or water diversion tank, utilizes the principle that the vacuum of a sealed container can generate suction force. When used in conjunction with a regular centrifugal pump, it can produce a self- suction effect (equivalent to a self-suction pump), with a larger self-suction height of about 4m. Its advantages are easy assembly, easy maintenance of a single pump, stable self- priming performance, and more cost-effective than self-priming pumps; The disadvantage is that it occupies a large area. Why choose a siphon tank/ bucket? self-suction/priming pump has a complex pump body structure, relatively high production and installation costs, and a higher overall pump price; The combination of a siphon tank/bucket and a regular centrifugal pump can also achieve the effect of a self-priming pump, but the cost of the individual unit is relatively low, and the maintenance of the pump body is also convenient. If the pump is damaged, only the pump needs to be replaced, and the siphon bucket can continue to be used. In the one in use and one backup working condition, only the continuous siphon bucket can be used, saving procurement costs. Submerged pump is a conventional corrosion-resistant engineering plastic submerged pump. Due to manufacturing process limitations, its submerged depth does not exceed 2m (the submerged pump is too long, unstable to operate, and has a short service life). It is not suitable for use in deep pool conditions; The self-suction height of the siphon tank /bucket and ordinary centrifugal pump can reach 4m, with a wider application range.

Minimum Order: 1 bags

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

Gear oil transfer pump Horizontal, self priming gear pump is used to transfer lubricating oil or other fluids similar to lubricating oil without solid particles and fibers at the temperature below 200 degree celsius and the viscosity of 5 to 1500 Cst. It can be also used in hydraulic system. Reducing the rotary speed, the pump can deliver the liquids whose viscosity can be up to 500, 000Cst. YCB gear pump is mainly composed of gear, shaft, shaft sleeve, pump body, pump cover and seal etc. The gears are adopted double circular teeth shape, which makes the gears less wear on gear surface, stable revolution, low noise, long service life and high efficiency. Seals can be mechanical seal or packing seal, which can be chosen according to the user’s requirements. Application: 1 - as transfer pump or booster pump in oil delivery 2 - as fuel pump for delivery system, pressurization and injection in fuel supply system. 3 - as the firefighting equipment to transfer foam liquid 4 - as hydraulic pump supplying hydraulic power in hydraulic system 5 - as lubricating pump in all industry fields.

Minimum Order: 1 bags

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

Stainless steel submersible multistage well pump Pump application Used to supply water wells or reservoirs, used in household, industrial, garden, irrigation Operation parameters The highest temperature: 35 degrees Celsius Permissible temperature rise: 40K Maximum immersion depth: 125m Minimum well diameter: 150mm Motor and pump Pump adopts floating impeller design Water filling, rewindable motor

Minimum Order: 1 bags

　　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