Mechanical Hardware

In the world of industrial machinery, reliable sealing components are essential to maintain performance, prevent leaks, and extend the lifespan of equipment. The NQKSF brand is proud to offer a full range of high-quality, durable rubber sealing products designed to meet the rigorous demands of modern industries. With years of experience in manufacturing and global supply, NQKSF has become a trusted name among equipment manufacturers, engineers, and procurement professionals worldwide. Product Overview NQKSF rubber seals are built with a strong focus on durability, precision, and compatibility with harsh operating environments. Whether used in hydraulic systems, automotive engines, compressors, or heavy machinery, these seals ensure tight, consistent sealing performance even under pressure, friction, and chemical exposure. Key Material Options NBR (Nitrile Butadiene Rubber): Excellent oil and fuel resistance Operating temperature: -40°C to +125°C Commonly used in automotive and hydraulic sealing systems FKM (Fluorocarbon Rubber): Superior heat, oil, and chemical resistance Operating temperature: -20°C to +250°C Ideal for harsh industrial or chemical environments EPDM, Silicone, and PU: Selected based on application needs such as weather resistance, flexibility, or abrasion tolerance Why Choose NQKSF Rubber Seals? Long-Term Durability: All NQKSF seals are tested for resistance to aging, cracking, deformation, and wear, ensuring reliable long-term operation. Precision Engineering: Manufactured with high dimensional accuracy, ensuring perfect fit and optimal sealing performance in dynamic or static conditions. Versatile Applications: Suitable for a wide range of sectors, including automotive, construction equipment, agriculture, oil & gas, and general machinery. Custom Production: We offer OEM/ODM services, including size customization, logo printing, and packaging options to match client-specific requirements. Performance Highlights Leak-proof sealing under high pressure and temperature Excellent resilience and rebound elasticity Low compression set, even after long service hours Strong compatibility with various lubricants and industrial fluids Global Supply and Support NQKSF has built a strong international presence, supplying rubber seals to partners in Europe, Southeast Asia, North America, and beyond. We maintain a commitment to fast delivery, quality control, and technical support, helping clients reduce downtime and optimize system performance. Conclusion For businesses that depend on reliable sealing components, NQKSF rubber seals are the smart choice. With advanced materials, consistent manufacturing quality, and excellent resistance to industrial stressors, NQKSF products deliver value in both performance and longevity. Reach out today for pricing, sample requests, or to explore custom sealing solutions tailored to your industry needs.

Minimum Order: 500

DEDE brand offers a full range of premium industrial seals that are designed to withstand extreme operating conditions, ensuring reliability, safety, and long- term efficiency. Whether used in high-pressure hydraulic systems, high-speed rotating shafts, or chemically aggressive environments, DEDE seals deliver consistent sealing performance with minimal maintenance requirements. Why Choose DEDE Industrial Seals? DEDE seals are engineered with a clear focus on longevity, material integrity, and functional precision. Each product is the result of advanced manufacturing processes, strict quality control, and in-depth research into application- specific needs. Core Advantages: High-Quality Materials: DEDE seals are available in a variety of materials, including NBR (Nitrile Rubber), FKM (Fluorocarbon Rubber), EPDM, Silicone, and PTFE, allowing for compatibility with oils, fuels, chemicals, and high-temperature or high- pressure conditions. Metal-Reinforced Construction: Many DEDE oil seals are designed with internal metal skeletons, providing excellent shape retention and structural stability, even under mechanical stress or fluctuating loads. Wide Application Range: Suitable for use in automotive systems, hydraulic and pneumatic equipment, agricultural machinery, gearboxes, compressors, pumps, and more. Precision Manufacturing: DEDE applies advanced molding techniques and strict dimensional control to ensure a perfect fit and leak-proof sealing, minimizing downtime and reducing maintenance costs. Custom Solutions Available: DEDE supports OEM and bulk customization for industrial clients, offering tailored solutions that meet specific performance requirements in various sectors. Performance Highlights Temperature Resistance: Depending on the material, seals can operate in environments ranging from -40°C to +250°C. Pressure Endurance: Engineered to handle high system pressures without deformation or extrusion. Chemical Compatibility: Excellent resistance to oils, fuels, hydraulic fluids, and corrosive substances. Friction & Wear Control: Low-friction surface finish ensures smooth motion and extended seal lifespan. Reliable Partner for Global Industries With a commitment to quality and innovation, DEDE has become a trusted supplier to clients across Europe, Asia, and the Americas. The brand has earned a reputation for consistency, fast delivery, and strong technical support, making it a preferred partner for long-term supply contracts and industrial procurement. If your business relies on machinery that must operate smoothly under harsh conditions, DEDE industrial seals provide the reliable protection your systems need. Backed by expert engineering, quality materials, and a dedication to performance, DEDE seals are a smart investment for reducing downtime, extending equipment life, and improving overall operational efficiency. Contact us today to learn more about DEDE’s full range of sealing solutions or to request a free quote for bulk or customized orders.

Minimum Order: 500

2 cy series of high-pressure gear oil pump is suitable for the transportation of fuel oil, diesel oil, machine oil, and other similar liquid. The liquids do not contain particles or fiber, and temperature is not higher than 200 ℃, the viscosity is not more than 1500 CST. The pump can be used as a transport, pressure, fuel injection, hydraulic and lubrication pump, stainless steel gear pump is suitable for conveying corrosive liquids without solid. Application It can be used as transmission and booster pump in oil transportation system. In the fuel system can be used as delivery, pressure, injection fuel pumps. A hydraulic pump used in hydraulic systems to provide hydraulic power. It can be used as lubricating oil pump in all industrial fields. Structure features: The 2CY series gear oil pump is composed of pump body, pump cover, gear, bearing sleeve and shaft end seal. The gears are nitride treated and have high hardness and wear resistance. All moving parts in the pump are lubricated by the medium they are conveying. The four bearing sleeves in the pump are installed in the pump body, and the end clearance is automatically adjusted with the working pressure, so the pressure of the pump is stable, the output flow pulsation is small, and the volume ratio is high. 2CY series gear oil pump is simple and compact in structure, easy to use and maintain, highly adaptable and efficient. 2YC series gear pump pressure is higher than other gear pumps. It is suitable for conveying pressure requirements up to 2.5MPA liquid.

Minimum Order: 1 bags

PF plastic chemical pump： PF pump body, pump cover, impeller of plastic chemical pump(the wet parts which contact with liquids)are made of polyvinylidene fluoride or reinforced polypropylene by molding or injection processing. Polyvinylidene fluoride (PVDF) plastics have high mechanical strength and good corrosion resistance. PF chemical pump can convey the acid at the temperature from - 50 ℃ to 80 ℃ with various concentration of sulfuric acid, hydrochloric acid, nitric acid, acetic acid, phosphoric acid, chromic acid, oxalic acid, hydrofluoric acid and alkali, chemical medium, such as organic solvents, oxidant, alkali, chemical etc. in fertilizer, dyestuff, reagent, pesticide, pharmaceutical, electroplating, environmental protection and other industrial departments to transport corrosive medium without particles as the energy-saving pump. PF series chemical pumps have direct connection structure, which is connected by the pump body and bracket with the motor flange, the bracket supports the pump body, and the impeller is directly connected with the motor through the shaft. The pumps have simple and compact structure, few parts, good performance. The rotation direction of the pump is for clockwise rotation from suction inlet to the motor, the pump outlet is vertical upward. Pump seal adopts PTFE (F4) bellows mechanical seal with corrosion resistant. The chemical pump can be made with self priming performance and the suction height is up 4m.

Minimum Order: 1 bags

Looking for durable, high-performance oil seals capable of withstanding extreme temperatures and pressures? The DEDE High Temperature and High Pressure Oil Seal—crafted from NBR (Nitrile Butadiene Rubber) or FKM (Fluorocarbon Rubber) with an embedded metal skeleton—offers an optimal sealing solution for demanding industrial environments. Designed for OEMs, distributors, and maintenance professionals, this product is now available for wholesale orders with reliable quality assurance and competitive pricing. Product Overview The DEDE oil seal is engineered to deliver long-lasting sealing performance in applications involving both high pressure and elevated temperatures. With its precision-engineered metal-reinforced structure, it maintains excellent dimensional stability, even under thermal expansion or mechanical stress. This seal is ideal for high-speed rotating shafts, gearboxes, hydraulic systems, and industrial pumps. Key Material Options NBR (Nitrile Rubber): Temperature resistance: -40°C to +125°C Excellent resistance to mineral oils, hydraulic fluids, and mild chemicals Good wear and compression resistance Cost-effective for general high-pressure applications FKM (Fluorocarbon Rubber): Temperature resistance: -20°C to +250°C Exceptional heat, chemical, and oil resistance Suitable for aggressive environments (e.g., fuel systems, chemical plants) Higher durability in continuous high-temp operations Features and Advantages Metal Skeleton Reinforcement: Ensures rigid structure and installation precision Dual-Lip or Single-Lip Designs: Available according to sealing direction requirements High Pressure Resistance: Withstands internal system pressure fluctuations without deformation Thermal Stability: Maintains elasticity and sealing performance at elevated temperatures Custom Sizes & Branding: Support for OEM customization and large-batch bulk production Applications Hydrauli , c cylinders and pumps Automotive transmissions and engine components Oil and gas drilling machinery Chemical processing equipment Marine engines and turbines Heavy-duty agricultural and construction machinery Wholesale & Supply Capabilities As a professional supplier with global distribution capabilities, we offer flexible MOQ (Minimum Order Quantity), fast production lead time, and support for private labeling. Whether you're an importer, distributor, or equipment manufacturer, our DEDE oil seals are tested and proven for reliability across industries. The DEDE NBR/FKM skeleton oil seal with a combines temperature endurance, pressure resistance, and custom engineering, making it a reliable and cost- efficient solution for critical sealing applications. If your operations demand seals that won’t fail under harsh conditions, our high-temperature, high- pressure DEDE oil seals are your ideal choice. Contact us today for wholesale pricing, technical datasheets, or OEM customization services.

Minimum Order: 100

CQF engineering plastic magnetic pump is the application of modern magnetics principles. The working principle of magnetic couplings is used into the centrifugal pump as the magnetic pump. Magnetic pump is with static seal instead of dynamic seal so as to make the flow components of pump be in a completely sealed state, further to completely solve the problem of leakage from mechanical seal. CQF engineering plastic magnetic pump is made of reinforced polypropylene engineering plastic (with corrosion resistance, high strength), steel ceramics, stainless steel etc. materials, so it has a good corrosion resistance and can make the transport medium away from pollution. CQF engineering plastic Magnetic pump has compact structure, beautiful appearance, small volume, low noise, reliable operation, easy to use and maintain. It can be widely used in chemical, pharmaceutical, petroleum, electroplating, food, national defense, scientific research institutions, metallurgy, dye and other units. CQF engineering plastic magnetic pump is widely used to convey acid, alkali, oil etc. rare and precious liquid, venom, volatile liquid, as well as circulating water equipment, filter equipment. CQF magnetic pump is especially suitable for the liquids which is easy to leak, flammable, explosive etc. transportation. The pump driven by the explosion-proof motor is more ideal equipment. (pump material: reinforced polypropylene) Model meaning: CQF type engineering plastic magnetic pump CQF 50-25 50- inlet diameter (mm) CQF- engineering plastic magnetic drive pump 25 - head (m)

Minimum Order: 1 bags

ZYB hard tooth surface waste oil gear pump ZYB waste oil gear pump adopts self - sealing lubrication, clearance automatic adjustment structure. The flow parts are made of high wear - resistant materials. It has the characteristics of compact structure, good self-priming, high efficiency and strong adaptability, etc. In the occasions of conveying liquid containing impurities, the working life of the pump is 2-10 times longer than the general gear pump. ZYB booster gear oil pump is designed for the interchangeability with KCB series common gear pumps. And the appearance and installation size and technical parameters are exactly the same as KCB series gear pumps. Therefore, ZYB slag oil pump is also known as KCB series "strong type", which shows the important characteristics of long life and stable pressure of the pump when conveying medium with lubrication and no impurities. ZYB waste oil gear pump is suitable for conveying medium with less impurities and less lubrication in heavy oil, diesel oil, coal tar, grain oil, chemical industry, building materials, daily chemical products and other industries. Liquids temperature is no higher than 200°C and liquids viscosity is no higher than 150mm2/S containing non-metallic impurities. ZYB booster oil pump is especially suitable for stable working pressure, long-term continuous working occasions. For example: the strong lubrication system, the fuel transfer and injection in the fuel burning system. ZYB waste oil transfer pump is not suitable for conveying corrosive, containing metal impurities, sand and stone impurities with particle diameter greater than 3mm and medium with high volatility and low flash point Such as: gasoline, benzene, etc.

Minimum Order: 1 bags

DF horizontal stainless steel multistage chemical pump DF horizontal multistage pump is made of stainless steel material and is used to transport the corrosive liquids with temperature of -20 to 150℃, without solid particles. The inlet pressure of the pump is less than 0.6mpa. DF multistage pump is horizontal, single suction, multi - stage centrifugal pump. The outlet and inlet of the pump are vertically upward, and the suction section, middle section and spit section of the pump are connected together with tension bolts. Pump rotor is installed in the shaft of the impeller, balance plate and other parts. Both ends of the rotor are supported by rolling bearings or sliding bearings which are lubricated by grease. The axial forces of the rotor are balanced by the balancing disc. Features: Shaft seal can be for mechanical seal or packing seal. There is seal box in the both end of shaft seal. Mechanical seal or packing seal can be stalled inside of seal box. Water with the certain pressure is filled into the seal box for the water seal and cooling. A replaceable sleeve is provided at the shaft seal to protect the pump shaft. The pump is directly driven by the electric motor through an elastic shaft coupling. Viewed from the motor direction, the pump has clockwise rotation. Performance range: Flow range (Q) : 6-330m /h Head range (H) : 100-900m Ambient temperature (℃) : ≤40℃ Medium temperature (℃) : -20℃~105℃ Speed (r/min) : 1450-2900r/min

Minimum Order: 1 bags

BQW explosion-proof mine submersible sewage drainage pump BQW explosion-proof submersible sewage pump is designed and manufactured in accordance with the flameproof standard. In the motor part, strict flameproof measures are adopted. The motor housing is made of cast steel, the rotor shaft is made of stainless steel. The unit can drain the shallow water on the surface of the working face and also work under the water for a long time. Electric pump is with compact structure, light and small easy to move, without water diversion, double-sided seal, durable, safe and reliable, strong adaptability and other advantages. BQW explosion-proof submersible sewage pump is an advanced and reliable drainage tool used in mining, roadway, bottom hole water hole, local water hole, drainage of coal preparation factory, engineering drainage and other occasions. It is suitable for underground roadway and mining area of coal mine, underground water discharged from other working medium containing methane or explosive gas mixture of coal dust and coal water containing suspended coal powder, and also suitable for explosive environment of petrochemical system. 1 - Three-phase, AC, 50Hz / 380V or 660V (allowable deviation ±5%). 2 - The submerged depth of the submersible sewage pump shall not exceed 5m. 3 - The temperature of the conveying medium shall not exceed 40℃. 4 - The value of the pumped liquid is 6.5-10. 5 - The volume of solid impurities in sewage is generally less than 2%. 6 - The altitude shall not exceed 1000 meters. conveyed medium 1 - Groundwater containing methane or coal dust explosive gas mixture and coal water containing suspended coal powder. 2 - Sewage and general groundwater in explosive environment of petrochemical system. The motor used The motor is completely closed, mine flameproof type three - phase submerged sewage pump motor Enclosure protection form: IP68 Standard voltage (50Hz) : three-phase 380V or 660V Enclosure mark: flameproof mark "ExdIIBT4”

Minimum Order: 1 bags

2BV water ring vacuum pump: 2BV water ring vacuum pump is suitable to pump gas and water vapor with suction pressure up to 33mbar absolute pressure (97% vacuum). When using transformer oil as the working fluid (called the oil ring vacuum pump), the suction pressure can reach 6.7mbar absolute pressure (99.3% vacuum), which can completely replace the reciprocating vacuum pump. When the liquid ring vacuum pump works for a long time under the suction pressure approaching the limit vacuum, the cavitation protection tube should be connected to protect the pump and eliminate the cavitation sound. When it is used as a compressor, the maximum pressure is 0.26mpa (absolute pressure). When used as a compressor, 2BV pump power will increase with the increase of exhaust pressure. Please indicate the exhaust pressure to select the appropriate motor power when ordering. As a new generation of energy-saving products, 2BV water ring vacuum pump will completely replace SK, 2SK series water ring vacuum pump and W, WY, WL series reciprocating vacuum pump with excellent performance and many advantages. 2BV2-EX, 2BV6 series water-ring vacuum pumps/compressors are mainly used to pump the explosive gas and work in various flammable and explosive environments, with the same performance parameters as the corresponding models of 2BV2, 2BV5 series. 2BV series stainless steel vacuum pumps can be used in a variety of occasions where corrosion resistance is high and cleanliness is high. SUS304 (0Cr18Ni9), SUS316 (0Cr17Ni12Mo2), SUS316L (00Cr17Ni14Mo2) and other stainless steel materials can be used for all the overflow components of 2BV series stainless steel vacuum pump under working conditions. The pump shaft material is 2Cr13 or 0Cr18Ni12Mo2Ti 2BV type water ring vacuum pump mechanical seal USES the import product, the seal can use the fluorine rubber or the polytetrafluoroethylene. Compared with domestic water ring vacuum pumps of the same type such as SK, 2SK and SZ, it has the following characteristics: 2BV water ring vacuum pump is with coaxial direct connection design and saves space and it is easy to install. 2BV water ring vacuum pumps all adopt imported mechanical seals as standard configuration. all the 2BV water ring vacuum pumps are equipped with cavitation protection tube interfaces. If working under the ultimate pressure, opening the cavitation protection tube interface (or connecting with the separator) can eliminate cavitation sound and protect the pump under the condition of ensuring the suction effect to the maximum extent. aluminum bronze impeller has high strength and durability and has improved the corrosion resistance of 2BV water ring vacuum pump. If the flow components using stainless steel material can work in a more demanding environment. a unique flexible vent design that does not produce over-compression ensures the best efficiency of the 2BV water ring vacuum pump within its performance range. all use Y2 series motors with IP54 and IP55 protection grades (generally IP44) ·2BV water ring vacuum pumps all adopt NTN or NSK imported bearings

Minimum Order: 1 bags

CPN corrosion resistant alkali liquids transfer pump is used to convey alkali liquids containing solid particles and other liquids which is easy t crystalize. CPN alkali liquid transfer pump is widely for chlor-alkali, soda industry, medicine, chemical fertilizer, pesticide industry, petroleum, chemical industry, chemical fiber, paper industry, dye industry, environmental protection engineering and water treatment system etc. For the liquids with high temperature, the pump equipped with cooling water device can be sed. CPN alkali liquids transfer pump has the high efficiency, low energy consumption, strong corrosion resistance and not clogging etc. features. Pump rotation direction: Viewed the pump from the driving end, it is for clockwise. In the inspection of the disassembled impeller and shaft seal, CPN alkali liquids transfer pump has this kind of back door structure and need not disassemble the pipeline and electric motor. The maintenance is simple and convenient. 1 - Pump body is supported by cast foot to bear any load from the pipeline and so as to ensure the service life of the bearing and mechanical seal. 2 - The pump shaft with high rigidity is precisely machined and the bearing is lubricated with thin oil, and the oil level of the bearing body is measured by the oil ruler, which is reliable, practical and easy to operate. Pump design with axial clearance adjustment mechanism can reduce the impact of wear on pump performance. 3, Open impeller is not easy to be blocked. 4 - Packing seal and single or double mechanical seal can be chosen. There are internal and external mounting and balance, non - balance structure. 5 - Y-type ordinary motor or YB type explosion-proof motor shall be used as the power driving. Flow(Q)1.6 to 400m3/h 　　 Head (H)5 to 125m Working pressure：P≤1.6MPa 　　 Working temperature：20 to 150℃

Minimum Order: 1 bags

Are you in need of high-quality oil seals for your industrial or automotive applications? Look no further than our China Oil Seal Manufacturer! We are proud to supply a wide range of oil seals, including skeleton seal, NBR, FKM, and double lip metric oil seals, all designed to meet your specific sealing requirements. Our oil seals are manufactured using the latest technology and highest quality materials to ensure durability and reliability. Whether you need oil seals for heavy-duty machinery or precision automotive components, we have the right solution for you. Our products are designed to withstand harsh operating conditions, including extreme temperatures, pressure, and chemical exposure. In addition to our extensive product range, we also offer custom manufacturing services to meet your unique specifications. Our team of experienced engineers and technicians can work with you to develop custom oil seals that fit your exact requirements. With our commitment to quality and customer satisfaction, you can trust that our oil seals will deliver exceptional performance and longevity. We are dedicated to providing reliable sealing solutions that keep your equipment running smoothly and efficiently. Don't settle for subpar oil seals – choose our China Oil Seal Manufacturer for superior quality and exceptional value. Contact us today to learn more about our products and services and experience the difference that our oil seals can make for your operations.

Minimum Order: 500

YHCB double circular arc gears pump YHCB circular arc gear pump is compared with other gear pump. YHCB circular arc gear pump has the large flow. YHCB circular arc gear pump is mainly used for conveying various liquids with viscosity in 5-1500 CST and the temperature not higher than 80℃. And the liquids do not contain any solid particles and has not corrosion. The pump is widely used to convey oils such as extracted gasoline, kerosene, diesel oil and machine lubricating oil. It is the ideal pump for the oil tank vehicle modification industry and the oil sector. YHCB gear pump with double circular arc structure is a new pump developed at the base of the oil pump. YHCB oil pump is the high efficiency and energy saving special gear pump, with large flow, high pressure, small volume, low noise, low input speed, strong self- absorption, easy installation and maintenance and other advantages. YHCB circular arc gear pump can be installed in the car, with the help of the car gearbox to drive the output shaft. The bronze gear or stainless steel gear and explosion proof motor can be chosen for the explosion proof requirements.

Minimum Order: 1 bags

IN series jacketed stainless steel heat preservation pump, steam heat preservation pump, corrosion resistance and crystallization resistance chemical pump IN Series new fused/melt urea pump is a single stage single suction Cantilever centrifugal pump. The pump is Suitable for conveying melting urea liquid in chemical fertilizer plant and other corrosive liquid without suspended particulate matter. The temperature of the medium is allowed -20~180 degrees Celsius. The pump is horizontal suction, radial top spit out and the front side of the pump has a heat preservation jacket, double jackets can allow 0.59mpa and 170 degrees Celsius steam insulation. Users can choose different materials according to the degree of corrosion performance of the medium, models and different flow head can be regulated. Parameter range Flow: 2-400 m3 / h Head: 3-125 m Speed: 2900 r/min/1450rpm

Minimum Order: 1 bags