Mechanical Hardware

　　In modern industrial applications, fluororubber skeleton oil seals have gained significant attention due to their exceptional performance characteristics. As a high-end rubber sealing component, these seals demonstrate unparalleled advantages under various working conditions. 　　Firstly, fluororubber skeleton oil seals exhibit excellent elasticity and stretchability. This trait enables them to maintain a reliable sealing effect even under varying temperatures and pressures, effectively preventing leaks. Their superior elastic polymer structure grants widespread adaptability in mechanical installations. 　　Secondly, fluororubber materials showcase outstanding gas impermeability and resistance to various chemical media. This ensures that even when in contact with oils, acids, bases, and other chemicals, the fluororubber skeleton oil seals sustain efficient sealing capabilities. Moreover, their remarkable electrical insulation property makes them resistant to deformation, maintaining long-term stability under harsh conditions. 　　Additionally, fluororubber can be combined and compounded with a variety of materials to produce comprehensive performance, offering customized solutions for specific applications. This flexibility further enhances the utility of fluororubber skeleton oil seals in complex industrial applications. 　　In sealing technology, rubber sealing elements are among the most widely used components. They come in various forms, suitable for different working environments and industry requirements. Particularly for addressing leakage and sealing issues, fluororubber skeleton oil seals achieve sealing by providing contact pressure to compensate for leakage gaps. 　　In conclusion, whether in mechanical equipment or other industrial application scenarios, fluororubber skeleton oil seals are indispensable components that contribute significantly to sealing technology with their outstanding performance.

Minimum Order: 1000

　　Fluororubber skeleton oil seals play a crucial role in modern industry, with extensive applications in aerospace, chemical processing, petroleum, and automotive sectors. These seals are crafted from fluororubber, a synthetic polymer elastomer combining fluorine and carbon atoms, renowned for its unique physical and chemical properties. 　　Key Features of Fluororubber Skeleton Oil Seals 　　Fluororubber is celebrated for its exceptional heat resistance and chemical stability. It maintains elasticity and form under high temperatures without decomposing, providing excellent resistance to oils, chemicals, and corrosives. Moreover, it is non-toxic, odorless, and non-flammable, making it a safe and dependable sealing material. 　　Design and Structure 　　The structure of a fluororubber skeleton oil seal consists of the seal body, a reinforcing skeleton, and a self-tightening helical spring. The seal body is divided into sections such as the base, waist, edge, and sealing lips, which work together to provide effective sealing. Upon installation, radial pressure from the edge and tension from the spring ensure a secure seal. 　　Widespread Applications 　　Globally, over 60% of fluororubber is used in manufacturing oil seals for the automotive industry, highlighting its durability and high performance in sealing applications, the utilization of fluororubber reaches up to 80% in sealing technologies. The primary function of these oil seals is to separate lubricated areas from moving parts to prevent lubricant leaks, especially excelling in rotary shaft sealing. 　　Versatility in Various Environments 　　Fluororubber skeleton oil seals exhibit impressive stability when faced with humidity changes and high temperatures, earning them the distinction as the "king of rubber." They excel not only in high-temperature and corrosive environments but are also employed in producing hoses, rubber sheets, films, and various sealing rings and gaskets. These seals find applications in drilling equipment, refining installations, and chemical apparatus. Additionally, they play a key role in sealing pumps and pipe joints. 　　The widespread use and reliable performance of fluororubber skeleton oil seals under demanding conditions make them indispensable components in industrial settings. By leveraging their superior chemical and thermal properties, various equipment is assured of smooth operation even in severe operating environments.

Minimum Order: 1000

　　Bonded Seal are sealing elements composed of multiple layers of materials, widely used across various industrial sectors. Their primary function is to provide excellent sealing performance to prevent the leakage of liquids and gases. Here are the specific applications of bonded Seal in different fields. 　　1. Oil and Gas Industry 　　In the oil and gas sector, bonded Seal are primarily used in pumps, valves, compressors, and pipeline connections. These gaskets can operate under high temperature and pressure conditions, ensuring the system’s integrity and minimizing the risk of leaks, thereby protecting both the environment and personnel. 　　2. Chemical Industry 　　The chemical industry involves handling a variety of corrosive and abrasive fluids. The chemical resistance of bonded Seal makes them indispensable in this sector. These gaskets effectively prevent the leakage of hazardous substances, ensuring the safe operation of equipment and reducing both financial losses and environmental pollution. 　　3. Food and Pharmaceutical Industries 　　In the food and pharmaceutical sectors, hygiene and safety are paramount. bonded Seal are made from non-toxic, high-temperature materials that comply with hygiene standards, ensuring no contamination of products during production. They are widely used in food processing and pharmaceutical manufacturing equipment. 　　4. Maritime and Aerospace 　　bonded Seal also play a critical role in the maritime and aerospace industries. As these sectors operate under extreme conditions, they require high-strength and reliable sealing solutions. bonded Seal provide the necessary protection against high pressure, low temperatures, and corrosive environments. 　　5. Automotive Manufacturing 　　In automotive manufacturing, bonded Seal are used in critical components such as engines, exhaust systems, and transmissions. They effectively prevent the leakage of fluids and gases, ensuring the stability and reliability of engine operation, which enhances vehicle performance. 　　Bonded Seal, due to their superior sealing performance and wide applicability, play an essential role in numerous industries. From oil and gas to food and pharmaceuticals, bonded Seal are critical components for ensuring the safe and reliable operation of equipment. As technology advances and new materials are developed, the application fields of bonded Seal will continue to expand, offering more efficient sealing solutions.

Minimum Order: 1000

Aluminum profile extrusion is the process of forming an aluminum rod through physical and mechanical pressure, using a mold to heat the aluminum rod. The process flow of aluminum profile extrusion 1. Select suitable aluminum materials and perform preheating treatment. 2. Put the preheated aluminum alloy material into the hopper of the extruder. By controlling the pressure and temperature of the extruder, the aluminum material is extruded into the desired shape and size. During the extrusion process, it is necessary to pay attention to controlling the extrusion speed and temperature to ensure the quality of the aluminum profile. Finally, cool the extruded aluminum profile to solidify and shape it. 4. Process the surface of aluminum materials, such as oxidation, spraying, etc., to achieve the desired functionality and aesthetic effect. The advantages of aluminum profile extrusion process Firstly, the extrusion process can efficiently produce various complex shaped aluminum profiles to meet the needs of different industries. Secondly, the metal flow during the extrusion process is good, which can easily achieve smooth and consistent inner and outer walls, improving product quality. It can also save raw materials, reduce waste, and conform to the concept of sustainable development. Therefore, aluminum profile extrusion technology has been widely used in modern manufacturing and has become an important technology in the aluminum industry. In short, aluminum profile extrusion technology is an efficient, high- precision, stable and reliable manufacturing process, widely used in fields such as construction, automotive, and electronics.

Sheet metal processing refers to the processing technology of cutting, bending, stamping, welding and other processes on metal sheets (usually below 6mm), which is widely used in fields such as automobiles, aviation, electronics, and electrical appliances. Sheet metal processing has the characteristics of high precision, lightweight, diversity, and high efficiency, which require selecting appropriate materials, designing reasonable processes, and implementing strict quality control.

What is Urethane casting? Urethane casting is a manufacturing process similar to injection molding where urethane resin is cast in a cavity between two silicone mold halves. The process replicates a master model by pouring a silicone mold around it. In a highly skilled procedure, the mold is sliced into two halves, the master model is removed, and then a gating and ventilation system is added. Subsequently, the model maker casts a urethane-based resin into the resulting cavity and cures it under a vacuum to prevent air bubble intrusion. Vacuum casting is better known as urethane casting or polyurethane casting in the US. Vacuum Casting Process Step 1: Master Building Masters represent 3D solids derived from your CAD designs. Typically crafted via CNC machining or 3D printing, they are meticulously fabricated under controlled conditions, often at 40°C. Once the masters are meticulously finished and thoroughly inspected, the next phase involves progressing to silicone mold creation. Step 2: Mold Making The creation of casting molds commences with liquid silicone. The casting box is partially filled with this liquid silicone, and then subjected to controlled heating until the silicone is fully cured. Following this, the mold undergoes a 16-hour curing process within an oven. Additional batches of heated silicone are poured to complete the mold, ensuring comprehensive coverage. Once fully dried, the mold is carefully cut open to extract the master component. Step 3: Part Production Production of parts begins by pouring casting resins into the emptied mold cavity. This process results in the creation of highly precise replicas of the original master. The flexibility extends to the possibility of overmolding with multiple materials. Typically, silicone molds maintain their effectiveness for approximately 20 reproductions of the initial pattern. This structured approach ensures the replication of intricate designs with fidelity and efficiency, leveraging the precision of CAD designs and the versatility of silicone molding techniques.

What is CNC Machining? There are many types of CNC machines. They all use a computer controlled machine tool to remove material from the workpiece.. Because of this computer control, CNC machining is much faster, more precise and  accurate than conventional machining. What is CNC Machining used for? Our precision CNC machining services make complex finished parts and components as well as tools for plastic injection molding or pressure die casting. In addition, CNC manufacturing  is used for secondary drilling, tapping, and milling operations on  machined parts or parts made from other processes. Our CNC turning process produces custom prototypes and end-use production parts in as fast as 1 day. We use a CNC lathe with live tooling so features like axial and radial holes, flats, grooves, and slots can be machined. CNC turning is often used for: Functional prototypes and end-use parts Parts with cylindrical features Parts with axial and radial holes, flats, grooves, and slots

SLA (stereolithography) SLA is a type of 3D printing process that uses a vat of liquid photopolymer resin and a UV laser to build objects layer by layer. The UV laser solidifies the resin in the desired shape, creating highly detailed and accurate prints with smooth surface finishes. SLS (Selective Laser Sintering)/DLP (Digital Light Processing) SLS and DLP are similar processes that use a laser or projector to selectively solidify a powdered material, such as nylon or resin, layer by layer. The excess powder acts as a support structure during printing, making it ideal for complex geometries and intricate designs. SLS uses a laser to selectively sinter powdered materials, such as nylon or other engineering-grade plastics, layer by layer. This results in parts that are durable, heat-resistant, and have a high level of mechanical strength. SLS is commonly used in industries such as aerospace, automotive, and medical for producing functional prototypes and end-use parts that require high physical strength and robustness. FDM (Fused Deposition Modeling)/LCD (Liquid Crystal Display) FDM and LCD are popular 3D printing processes that use thermoplastic filaments or liquid resin, respectively, to create objects layer by layer. In FDM, the filament is heated and extruded through a nozzle, while in LCD, the liquid resin is cured using UV light. Both processes are widely used for rapid prototyping and producing functional parts. DMLS Direct Metal Laser Sintering (DMLS): In DMLS, a high-powered laser selectively fuses metal powder particles together, layer by layer, to create a solid 3D object. The process is similar to Selective Laser Sintering (SLS) for plastics but specifically designed for metal materials. DMLS can produce complex geometries and parts with high strength and durability, making it suitable for aerospace, automotive, and medical applications. SLM Selective Laser Melting (SLM): Selective Laser Melting is another metal 3D printing process that uses a laser to fully melt metal powder particles, creating a dense and fully consolidated part. SLM offers high precision and the ability to produce parts with excellent mechanical properties, making it suitable for producing functional metal parts for various industries. Both DMLS and SLM are commonly used in industries where high-strength metal parts are required, such as aerospace, automotive, and medical. These processes offer the ability to produce complex geometries and parts with excellent mechanical properties and performance. https://www.thingyfymfg.com/

　　Oil seals are sealing elements used to close rotating or fixed shaft sealing devices. Their main function is to prevent lubricating oil, liquid, or gas from leaking from the shaft seal while blocking dust, dirt, and other external contaminants from entering the mechanical system. Oil seals are usually made of elastic materials (such as rubber or polyurethane) and metal components (such as springs) to achieve high sealing efficiency. 　　Types of Oil Seals 　　1. Static Oil Seals: Used for sealing between stationary parts, such as flanges and joints, typically to prevent liquid leakage or contaminants from entering. 　　2. Dynamic Oil Seals: Used for sealing rotating or reciprocating parts, maintaining sealing effectiveness during shaft rotation or reciprocating movement, suitable for pumps and motors. 　　3. Double Lip Oil Seals: Provide dual sealing effects with inner and outer sealing lips effectively blocking liquid leakage and external contaminants, suitable for higher-demand applications. 　　4. Mechanical Oil Seals: Used in high-pressure and high-temperature environments, featuring complex structures to maintain stable sealing performance under extreme working conditions. 　　Applications of Oil Seals 　　1. Machinery: Commonly used in various mechanical bearings to prevent lubricant leakage. 　　2. Automotive Engines: Used to seal crankshafts and camshafts to prevent oil leakage. 　　3. Agricultural and Construction Equipment: Such as excavators and bulldozers, playing a crucial sealing role in transmission systems. 　　4. Industrial Gearboxes: Ensuring lubrication of the gear system, preventing wear caused by friction during operation. 　　5. Hydraulic Systems: Maintaining system stability in hydraulic pumps and motors, preventing hydraulic oil leakage, and ensuring efficient operation. 　　By using oil seals appropriately, not only can the working efficiency of equipment be improved, but also its service life can be extended, ensuring long-term stable operation.

Minimum Order: 1000

　　Oil seals play a crucial role in mechanical systems, effectively preventing contamination and ensuring that lubricants remain within the system. With a variety of types and materials available, selecting the appropriate oil seal for your machinery is essential for optimal performance and safety. Here are some guidelines to help you choose the best oil seal for your needs. 　　The fundamental structure of an oil seal includes a metal ring serving as the internal skeleton. The exterior can be crafted from metal or rubber materials, depending on the specific application. Springs are situated on the seal’s edge to support the seal and prevent the leakage of lubricants and other contaminants. The materials used in oil seals range from silicone and fluoroelastomer to PTFE. 　　The primary component of the oil seal is the lip, which creates a seal when pressed against the shaft’s surface. Oil seals can be equipped with or without a spring. The spring helps maintain pressure on the shaft, whereas oil seals without springs are primarily designed to keep dust out. 　　NQKSF oil seals are engineered to meet the rigorous demands of the industrial sector. They are utilized in hydraulic systems, pumps, pistons, pipelines, and various other mechanical devices. These seals are indispensable for the functioning of equipment that involves rotating parts, such as shafts and bearings. 　　Recognized for their exceptional performance across numerous applications, NQKSF oil seals offer high-quality products and comprehensive support for sealing systems. Customers can reach out to local distributors for expert guidance and assistance.

Minimum Order: 1000

　　Oil seals are critical components in mechanical systems, serving essential roles across various industries, from industrial machinery to household appliances. But what materials are oil seals made from, and what specific functions do they serve? Let’s explore. 　　Common Oil Seal Materials 　　The selection of oil seal materials depends on the operational environment and requirements. Common materials include: 　　Nitrile Rubber (NBR): Suitable for temperatures between -40°C and 125°C, offering good oil resistance and wear properties. 　　Fluororubber (FKM): Known for its high-temperature resistance, FKM works in temperatures from -20°C to 250°C, ideal for high-heat environments. 　　Silicone Rubber (VMQ): Offers a wide operating temperature range from -60°C to 225°C, excelling in low-temperature conditions. 　　Acrylic Rubber (ACM): Resists heat and oil well, functioning in temperatures from -25°C to 150°C. 　　Polyurethane (PU): Exhibits excellent wear resistance, suitable for moderate environments with temperatures between -20°C and 120°C. 　　Polytetrafluoroethylene (PTFE): Renowned for its outstanding chemical and temperature resistance, PTFE operates between -65°C and 260°C. 　　Functions of Oil Seals 　　The primary function of oil seals is to prevent the leakage of lubricating oil, ensuring efficient lubrication between mechanical parts. Additionally, they block external contaminants like dust or dirt from entering the machinery, thereby enhancing performance and extending the lifespan of the equipment. 　　Applications of Oil Seals 　　Automotive and Motorcycle Engines: Oil seals are used to seal crankshafts and camshafts, preventing oil leakage in the engine. 　　Agricultural and Construction Equipment: Oil seals play a crucial role in sealing transmission systems in machinery such as excavators and bulldozers. 　　Industrial Gearboxes: Oil seals ensure proper lubrication in gear systems, reducing wear caused by friction during operation. 　　Hydraulic Systems: Oil seals maintain the stability of hydraulic components, such as pumps and motors, by preventing hydraulic fluid leakage and ensuring optimal performance. 　　In conclusion, oil seals are indispensable in modern machinery. Their proper application not only enhances the efficiency of equipment but also extends its operational life, ensuring long-term reliability and stability.

Minimum Order: 1000

Valve Size: DN40-DN1200.  Pressure Rating: PN10-PN250. Material:GS-C25;1.0619;GP2 , 40GH,1.4308;1.4408,1.4571,1.4581,S31803 and Other Alloy Steel Design & Manufacture: DIN EN 12516-1;BS EN 12516.1;BS EN ISO 10434,EN1984 Face to Face Dimension: DIN EN558-1,EN12982 Flange Ends Dimension:EN1092 Test & Inspection:EN12266 End: RF,RTJ,BW Drive Device: Handwheel,Chainwheel,Bevel Gear;Electrical & Pneumatic Actuator Features Leflow provides high performance gate valve products, including Wedge gate valve, Pressure seal gate valve, Knife gate valve, Flat gate valve and Bellow seal gate valve. The OS&Y stem is most popular, but Non-Rising Stem type is also in our scope. Both flexible and Solid disc are available. For big size or Big pressure valve, By-pass design is optional.Below seal gate valve also falls in our ability. A gate valve, known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low flow resistance. The size of the open flow path generally varies in a nonlinear manner as the gate is moved. This means that the flow rate does not change evenly with stem travel. CAST STEEL GATE VALVE-DIN is usually for working condition in which the valve is not opened or closed frequently, and supports gate fully open or fully closed. It’s not suitable for adjustment or throttling. Gate valve includes three types-Wedge gate, Knife Gate and Parallel Gate. The disc of Wedge gate valve comes with Solid Type and Flexible Type. Flexible Wedge Gate Valves design consists of two independent and flexible wedge halves, that allow a relative movement to accommodate changes in the body seat angles. Solid wedge is designed in one-piece model while flexible wedge offers a wedge shape for both seats.

Valve Size:  DN25 – DN1000  Pressure Rating: PN10 Material: Ductile Iron(GGG50),Aluminum, WCB and Stainless Steel Operation: Manual, Pneumatic and Electric; Ends Dimension:DIN2533 BS4504,JIS B2212,ANSI B16.5 Test & Inspection: EN12266, API 598 Leflow’s high quality Pinch Valve is the ideal solution for shutting off and controlling abrasive, corrosive and fibrous media such as emulsions, silt, dust,gaseous substances, compressed air, powdery materials and particles. It has following options: 1.Body can be made of Ductile Iron, WCB,Aluminium and other Stainless Steel; 2.Operation can be Manual, Pneumatic and Electric; 3.Sleeve can be made of EPDM,NBR,NR(Natural Rubber) and so on. Pinch valve, also known as pressure valve,is a valve that uses manual, pneumatic, electric and other driving methods to squeeze the internal rubber tube to On-off or regulate the flow. Pich valve is composed of upper and lower valve body, rubber sleeve, Upper and lower stem, upper and lower gate, left and right guide post and other parts; As the core component, the rubber sleeve is usually composed of an inner layer, an outer layer and a reinforcing fiber, and is formed by vulcanized rubber. Common rubber sleeve materials are natural rubber, fluorine rubber, neoprene rubber ball, EPDM rubber, nitrile rubber, food grade rubber ball and so on. When the hand wheel is rotated clockwise, the size of the pinch valve stem simultaneously drives the upper and lower valve plates to compress the rubber sleeve, and the valve is closed. When it is turned anti-clockwise, the valve is opened due to the joint action of the elasticity of the rubber sleeve and the pressure of the medium. The gate moves up and down between the left and right guide to complete the valve opening and closing; During the closing, Once it feels the connection between upper and lower sleeve, then stop continuing to close, More torque will damage the sleeve. The Pinch valve can be installed in any direction on the pipe, and there is no medium flow limit. After using for a long time, if the rubber sleeve is found to be worn and leak happens, just disassemble the upper and lower valve body and replace it with a new rubber sleeve. The valve body can be reused and the maintenance cost is very low. Manual Pinch Valve Leflow’s Manual Pinch Valve is a reliable, low-maintenance, and cost- effective valve designed for challenging slurry, abrasive, and corrosive chemical applications across various industries. The 100% full bore design eliminates any dead points or gaps, seats, or bearings where slurries might stagnate and affect operation, or even lead to valve failure. The manual pinch valve features a bi-directional drip-tight closing function, and its design meets face-to-face dimensions identical to gate valves, plug valves, and ball valves (DN25 – DN1000). They are designed with flange connections conforming to EN12266, API 598 standards, or DIN2533 BS4504, JIS B2212, ANSI B16.5.

Valve Size:  DN15 – DN600  Pressure Rating: PN6,PN10,PN16  Material: Cast Iron(GG25) and Ductile Iron(GGG40 and GGG50). Test & Inspection: EN12266 Face to Face Dimension(Flanged): DIN3202 F6 End: BSP acc.to ISO228-1, Flange EN1092-2 PN16 and AS4087 Features: Leflow’s is manufacturing ball check valve with Flanged and Screwed ends, and options are as following: 1.DN15 to DN50 can be Screwed, and DN40 to DN600 are commonly flanged ends; 2.The coating of ball can be NBR or EPDM; 3.All sizes of valves are Fusion bonded epoxy coated; 4.Full bore for all sizes; The cast iron check valve is usually used to control the one-way flow of fluids. It usually consists of a valve body, ball, spring, and sealing components.This kind of valve is suitable for medium and small diameter pipelines and widely used in industrial systems such as water supply, drainage, heating, and cooling. Its main characteristics are as following: 1.Simple and compact structure: fewer components, easy to install and maintain; 2.Low Pressure drop, Minimum backpressure for tightness 0.3bar; 3. Quick close:The check valve can quickly close when the fluid flow direction changes, preventing backflow and protecting the safe operation of the pipeline system; 4. Good sealing performance: The ball is encapsulated with soft rubber, which can achieve Zero leak; 5. Silent operation the sound of ball touching the seat is very small,as soft rubber covering the ball; 6. The ball can self-Cleaning; 7. Horizontal and vertical installation in the pipeline 8. Keep valve on Pipeline to change ball or clean valve interior