Mechanical Hardware

CZW Diesel engine driving self-priming sewage pump Application: Flood control and drainage works, Rainwater and general sewage, Municipal sewage works, construction sites and civil air defense drainage stations, Waste water from industries such as light industry, paper making, textile, food, chemical industry, electric industry and mining, Sewage discharge in residential areas, Sewage and sediment from the water purification system, Tannery, slaughterhouse sewage, river breeding, Brewing and sugar, sewage discharge or drainage the water which has been seriously polluted. Structure and features: CZW diesel engine sewage pump unit integrates self-priming and non-clogging sewage and adopts the diesel engine to drive the axial backflow outward mixing type. The pump body and impeller have the unique design. It does not need to install the bottom valve and pour water when pump works. The pump unit can absorb and discharge the liquids with large particle solid and long fiber etc. impurity. The pump unit can be widely used in municipal sewage and waterlogging control engineering, agricultural irrigation, etc. The diesel engine pump has the characteristics of simple structure, good self- priming performance, strong sewage discharge capacity, high efficiency and energy saving, easy to use and maintain Main parts: 1 - Diesel engine pump set has the main parts such as diesel engine, water pump, coupling, cooling fan, cooling water tank, steel structure base (including bottom fuel tank 80-120L), battery and connection parts, exhaust muffler, control panel. 2 - The standard design is a combination of pump unit, bottom oil tank, control panel and battery etc. 3 - According to customer requirements, diesel engine driving sewage pump can be designed into a pump group, bottom oil tank, control panel, battery, movable wheel, outdoor rain box etc. 4 - It can be designed into a trailer (four-wheel or two-wheel) mobile type according to customer requirements. Working conditions: 1 - Ambient temperature ≤50℃, medium temperature ≤80℃, special requirements up to 200℃. 2 - The PH of the medium is 6-9 for cast iron and 2-13 for stainless steel. 3 - The medium weight shall not exceed 1240kg/m3. 4 - The height of self-suction shall not exceed 4.5-5.5m, and the length of the suction pipe shall not exceed 10m.

Minimum Order: 1 bags

W Single stage vortex pump Pumped liquids (clean water or other liquid like water) W single-stage direct-connect vortex pump is used for pumping water or other liquids with physical and chemical properties like water. Liquid temperature is less than 60. Vortex pump is often used in boiler feed water, shipbuilding, textile, chemical, metallurgy, machinery manufacturing, aquaculture, fixed fire control voltage, heat exchange unit and remote sprinkler irrigation agriculture departments and has a wide range of applications Features Vortex pump is a kind of vane pump with small flow and high lift. It has low efficiency and steep drop in performance curve. Compared with other vane pumps, vortex pump is of different structure. Simple, small size, light weight, with self-priming ability or with the help of a simple device to achieve self-priming. Structure: Vortex pump is Suitable for transporting clean liquid without solid particles with viscosity less than 15°E. It is mainly composed of impeller, pump body, pump cover and so on. The annular flow is formed between Pump body and impeller. The liquid is sucked from suction port and obtains energy through the rotating impeller and then is discharged from discharge outlet. There is a partition between suction and discharge outlet, and there is a small gap between the partition and impeller. Performance Flow: 1.44-14.4m3/h Head: 25-120m Motor power: 0.75kw-11KW Caliber: 25mm-65mm 2900rpm/1450rpm Application: Chemical industry, petroleum, light textile, electric power and other factories and mines of industrial production of water, boiler feed water, heating water supply, high-rise buildings, firefighting, heat cycle water supply, manufacture of frozen heatstroke cooling drinks and canteen, food disinfection high pressure water supply and other applications

Minimum Order: 1 bags

In the demanding world of heavy machinery, equipment such as excavators and concrete mixers operate in harsh, abrasive, and high-load environments. To ensure long-term reliability and protect internal components, high-quality sealing solutions are essential. Among the most commonly used are NBR (Nitrile Rubber) and FKM (Fluorocarbon Rubber) oil seals, designed for high precision and industrial durability. This article focuses on how these materials are applied in sealing systems for excavators and concrete mixers, and what factors to consider when selecting the right oil seals for these machines.

Minimum Order: 100

FSY, WSY vertical FRP submerged pump FSY type and WSY Type vertical fiberglass submerged pump are two types of pumps produced by our company. FSY type vertical fiberglass submerged centrifugal pump and WSY vertical fiberglass submerged vortex pump. Submerged pumps FSY and WSY vertical fiberglass submerged pump are all immersible into the tank and submerged depth of pump is between 800mm and 3000mm. As long as the liquid is higher than the pump body, FSY type and WSY type pump can work without filling. There is a leakage hole under the flat cover plate to prevent the liquid from leaking out of the storage tank. Material: FRP The flow parts which contact with liquid are for polyvinyl butyral modified phenolic glass fiber, high temperature molding phenolic FRP material. The connecting tube and fluid pipe are made of rolled semi dry process phenolic fiberglass pipe. The impeller shaft sleeve assembly all use phenolic daub and pump shaft stick into an organic whole. The parts assembly under liquid are for phenolic daub binder. The wet parts for pump are all for fiberglass reinforced plastic. No metal material contacts with the fluids. Features: Corrosion resistance performance is absolutely reliable. Pump has light weight, high strength, no deformation, heat resistance, corrosion resistance and other excellent properties. FSY type and WSY type vertical fiberglass submerged pump can partially replace precious metals pumps such as molybdenum containing stainless steel, titanium and titanium alloy pumps. Rotation direction: the pump is driven directly by the motor through the claw type elastic coupling, and the pump rotates clockwise from the motor end. Application: FSY, WSY vertical FRP submerged pump is widely used in chemical, petrochemical, refining, dyestuff, pesticide, pharmaceutical, rare earth, fertilizer and other industries. Pumped liquid is without suspended solid particles, not easily crystallized. Liquid temperature is not higher than 100 ℃. Pumped liquids: all kinds of oxidizing acid (hydrochloric acid, thin sulfuric acid, formic acid, acetic acid, butyric acid) of corrosive liquids.

Minimum Order: 1 bags

S, SH Horizontal centrifugal double suction split case pump S single-stage double-suction horizontal split case centrifugal pump is a new energy-saving horizontal centrifugal pump. It is mainly composed of pump body, pump cover, shaft, impeller, seal ring, shaft sleeve, bearing etc. parts. Its suction inlet and outlet are below the pump shaft. During maintenance, as long as the pump cover is lifted, all parts can be removed for maintenance. Convenient maintenance, no need to disassemble inlet and outlet pipelines and motors, high efficiency and energy saving, wide application range. Pumped liquids S double suction split case horizontal centrifugal pump is used to convey clean water or other liquids with physicochemical properties similar to water. When changing the structure and material of the pump according to the user's demand, it can be used for conveying muddy water or various corrosive liquids. Its performance conforms to basic parameters according to JB/1050-93 single suction double suction clean water centrifugal Pump. Application Suitable for factory, mine, city water supply, power station, tap water, farmland irrigation and various water conservancy projects. Factories, mines, urban water supply, power stations, irrigation and drainage of farmland and various water conservancy projects with big discharging capacity. Model meaning: 300 S 90 A 300 -- Suction diameter (mm) S - single stage double suction centrifugal pump 90 -- Design head (m) A - The impeller is cut for the first time Technical parameters Flow rate: 80-15000 m3 / h Head: 19-100 - m Speed: 1450-2900 r/min Inlet and outlet diameter: 25-500 Φ Φ Liquid Temperature range: ≤0~+80℃ Working pressure: ≤ 1.6mpa

Minimum Order: 1 bags

In the field of industrial automation and machinery, pneumatic seals are essential components that ensure air-tight operation in systems powered by compressed air. Whether used in pneumatic cylinders, valves, or actuators, these seals play a critical role in maintaining performance, reducing leakage, and enhancing the efficiency of equipment. For manufacturers, maintenance providers, and distributors, sourcing pneumatic seals in bulk is a practical choice that supports cost efficiency and consistent supply. This article explores the key features of pneumatic seals, their application in industrial machinery, and answers frequently asked questions to assist in informed purchasing decisions. Understanding Pneumatic Seals Pneumatic seals are designed to contain pressurized air within a system while preventing external contaminants like dust or moisture from entering. Unlike hydraulic seals, which must withstand high fluid pressures, pneumatic seals are optimized for lower pressures but higher speeds and more frequent cycles. Common types of pneumatic seals include: Rod seals – prevent air from escaping around the rod during extension or retraction Piston seals – maintain air pressure between chambers within a cylinder Wiper seals – remove debris from the rod surface before it enters the system O-rings and backup rings – used in static or low-motion sealing points Material Options for Pneumatic Seals Choosing the right material is essential for sealing performance and service life. Typical options include: NBR (Nitrile Rubber): Good for general-purpose applications, offering basic oil and air resistance PU (Polyurethane): Known for high wear resistance and mechanical strength in dynamic applications FKM (Fluorocarbon): Suitable for higher temperature and chemical exposure EPDM: Often used where resistance to steam or water-based fluids is required Each material has its strengths depending on temperature, speed, chemical compatibility, and application requirements. Why Bulk Purchasing Makes Sense For industrial users, buying pneumatic seals in bulk offers multiple advantages: Lower cost per unit through volume discounts Reduced downtime by maintaining inventory for quick replacement Consistent product availability to support high-volume production or maintenance schedules Customization options available for OEM or private label requirements Bulk options typically include a mix of standard sizes and profiles used in the most common pneumatic components. FAQs: Pneumatic Seal Bulk Supply Q1: Are pneumatic seals standardized across different brands? A: Many seals follow ISO or DIN dimensions, but some machines require custom seals. It's important to check size and groove specifications before placing a bulk order. Q2: What should I consider when choosing a supplier? A: Look for suppliers who provide material certifications, dimensional accuracy, and stable lead times. Technical support and customization services are also helpful. Q3: Can the same seals be used for both hydraulic and pneumatic systems? A: Not always. Pneumatic seals are designed for air systems and may not handle the pressure or chemical exposure found in hydraulic environments. Q4: How do I store pneumatic seals for long-term use? A: Keep them in a cool, dry place away from sunlight and ozone-generating equipment. This helps prevent premature aging of the rubber. Pneumatic seals may be small components, but they have a significant impact on the efficiency and reliability of industrial machinery. Choosing the correct material and seal design—and securing them in bulk—can reduce long-term maintenance costs and ensure smoother operations. If your business relies on pneumatic systems, consider partnering with a trusted supplier who understands your industry and offers reliable bulk sealing solutions tailored to your operational needs.

Minimum Order: 100

Mixed flow volute pump HW mixed flow pump is between centrifugal pump and axial flow pump. The pump has Small size, light weight, simple structure and it is easy to use and maintain. The conveyed medium is clean water or similar liquid. HW mixed flow pump is suitable for farmland drainage and industrial water supply and drainage. HW type mixed flow pump is horizontal single suction volute mixed flow pump. The pump is suitable for conveying clean water or other liquids with physical and chemical properties similar to water. It is used in farmland drainage and irrigation, industrial and urban water supply and drainage. HW volute mixed flow pump is mainly composed of pump cover, impeller, pump body, pump shaft, shaft sleeve and bearing body (diameter ≤350MM) or bearing frame (diameter ≥400mm) and other main parts. performance capacity: 180-3665m3/h Head: 3.0-20.7 m Supporting power: 3-250kW Features: 1 - simple structure, convenient usage, high efficiency, small size, light weight 2 - Transmission mode: direct transmission and variable transmission. The commonly used driven engines are electric motors and diesel engines. Motor with shaft coupling and diesel engine with pulley. 3 - Pump rotation: Viewed from pump inlet the impeller is generally for counterclockwise. Model Description: HW-300 7 s 300: pump inlet and outlet diameter (300mm) HW: Volute mixed flow pump 7: Head (7M) S: structural form (front and back door open structure) Adopt standard HW-S pump, with GB/T13008 JB/T6667 standard design and manufacture.

Minimum Order: 1 bags

DEDE Supplies is proud to offer a wide range of high-quality excavator seals and industrial earthmoving machinery seals. Our seals are designed to withstand the rigors of heavy-duty construction and excavation projects, providing reliable protection for your equipment and ensuring smooth operation. We understand the importance of having durable and reliable seals for your machinery, which is why we source our products from trusted manufacturers and rigorously test them to ensure they meet our high standards. Whether you need seals for excavators, bulldozers, or other earthmoving equipment, we have the right solution for you. Our seals are made from premium materials that are resistant to wear, tear, and extreme conditions, so you can trust that they will deliver long-lasting performance in the toughest environments. With a focus on quality and durability, DEDE Supplies is your go-to source for all your excavator and earthmoving machinery seal needs. In addition to our top-notch products, we also provide exceptional customer service and support. Our knowledgeable team is here to assist you with finding the right seals for your specific needs and to answer any questions you may have. We are dedicated to ensuring your complete satisfaction with every purchase. Don't let worn-out or inferior seals compromise the performance of your machinery. Trust DEDE Supplies for reliable excavator seals and industrial earthmoving machinery seals that you can count on. Contact us today to learn more about our products and how we can help you keep your equipment running smoothly.

Minimum Order: 100

Vertical stainless steel pipeline centrifugal chemical transfer pump Pump material and application IHG, IHGB type vertical stainless steel pipeline centrifugal pump is made of stainless steel (SUS304, SUS316, SUS316L etc. ) The stainless-steel pump is used for conveying corrosive liquid without solid particles. The corrosive liquid is like water. IHG Vertical stainless steel centrifugal chemical transfer pump is widely used in petroleum, chemical industry, metallurgy, electric power, papermaking, food and pharmaceutical and synthetic fiber sectors. Liquid temperature is -20℃ to 120℃. Features Vertical structure with same inlet and outlet Closed coupling between pump and motor, no vibration, low noise Shaft sea: mechanical seal with high-quality Convenient installation and maintenance, disassemble pump connection nut to open rotor parts Pump can be used by series or parallel Pump can be installed vertically or horizontally. Performance range Q: 2-2000m3/h H: 2-125m Caliber: 20-500mm Closed impeller, stainless steel pump material Motor: Standard motor or explosion-proof motor Model explanation: IHG50-200 IHG: Vertical stainless-steel centrifugal pump 50: Pump inlet(50mm) 200: impeller nominal diameter(200mm)

Minimum Order: 1 bags

In industrial applications where oil, grease, and hydraulic fluids are commonly used, the choice of sealing material plays a critical role in equipment reliability and performance. DEDE as a trusted manufacturer of industrial sealing components, proudly presents the advantages of NBR (Nitrile Butadiene Rubber) seals — one of the most popular and versatile materials in the sealing industry today. What Makes NBR Seals a Preferred Choice? 1. Outstanding Oil Resistance NBR is especially valued for its excellent resistance to petroleum-based oils and fuels. Whether used in engines, gearboxes, or hydraulic systems, DEDE's NBR seals maintain sealing integrity and elasticity even after long exposure to lubricants and transmission fluids. 2. Wide Operating Temperature Range DEDE NBR seals can operate efficiently between -40°C to +125°C, making them suitable for a variety of mechanical environments. This thermal stability allows them to perform reliably in both low- and medium-temperature applications. 3. Excellent Physical Strength NBR offers good tensile strength and abrasion resistance, which are critical for dynamic sealing environments. This ensures longer service life, especially in systems where continuous motion or pressure fluctuations are involved. 4. Cost-Effective Material Compared to higher-end materials like FKM or PTFE, NBR is more economical without sacrificing essential performance characteristics. For most general- purpose sealing tasks, DEDE's NBR seals offer a perfect balance between cost and efficiency. 5. Versatility in Applications Due to its chemical and physical properties, DEDE is NBR seals are widely used in: Automotive engines and drivetrains Hydraulic and pneumatic systems Agricultural and construction machinery Pumps, compressors, and gearboxes 6. Customization Flexibility DEDE offers NBR seals in various profiles and sizes, such as TC, SC, VC, and TB types, and supports OEM customization. Whether you need a standard part or a seal tailored to specific machinery, DEDE can deliver with precision and consistency. Environmental Considerations With growing attention to environmental sustainability, DEDE continues to optimize its NBR formulation to reduce VOC emissions and improve recycling potential, aligning product development with modern green standards. If your machinery requires reliable sealing in oil-rich environments without the need for extreme temperature or chemical resistance, DEDE's NBR seals are an excellent choice. They deliver dependable performance, mechanical strength, and cost efficiency—backed by DEDE is commitment to quality manufacturing and professional service. Get in touch with DEDE today to explore the full range of NBR sealing solutions, request samples, or discuss your specific application requirements.

Minimum Order: 100

QY oil-filled submersible electric pump Durable complete mechanical seal box is built in. QY oil-filled submersible electric pump consists of pump, seal and electric motor. Pump with centrifugal or axial flow structure locates the upper and electric motor filled with oil locates down the equipment. Pump and electric motor adopt the complete mechanical seal and O ring. The pump can be used for river water or sewage discharge. Features: Good seal (water-proof), small volume, light weight, no pump room, no injecting guiding water, convenient use and maintenance. Application Well irrigation and sprinkling irrigation and drainage irrigation in farmland and gardens Underground water lifting, water tower water delivery Draining flood Drainage at hatch bottom of marine. Urban construction, industrial and mining water supply and drainage Working conditions: Submerged depth is less than 5m Water temperature is less than 40 degree Celsius Solid content in water is less than 0.1% and particles diameter is less than 0.2mm No corrosive water, PH: 6.5-8 Pumped medium: clean water, well water, river water, lake water etc. Pump material: Cast iron or stainless steel

high vacuum self-priming pump VSP strong self-priming pump is mainly composed of pump body, pump cover, rotor assembly and power components. The rotor assembly is installed in the pump body and pump cover of the pump cavity. The power component drives the rotor assembly to rotate so that the volume of seal chamber in the pump cavity changes and have vacuum to suck the fluids quickly. Advantages: super self-priming performance, water test suction height of 8.2 meters, far higher than other self-suction pump 3 ~ 4 meters suction height wide viscosity range of pumped liquids, volatile solvent and high viscosity oil, glue etc. can be pumped. The filled liquids into barrel can be pumped entirely, with a higher purity than that of the vacuum unit, Self-priming time is very short, Strong cavitation resistance. And simple structure, few parts, easy installation, easy maintenance, long service life. Features 1 - Strong self-priming ability: innovative structure with a suction height up to 8.2 meters. 2 - Short self-imbibition time: 3m / 2m, 5m / 8m, and 8m / 15s. 3 - Wide pumping range: it can pump volatile solvent and high viscosity liquid. 4 - Strong cavitation resistance: it can pump the liquid in the vessel with high vacuum degree. Application 1 - Various low-specific gravity, volatile solvent solutions, extraction and transportation. 2 - Liquid extraction and delivery in drums (instead of barrel pump). 3 - The residue in the tank is pumped entirely. 4 - Extraction and cleaning of sludge from bottom of pool and tank. 5 - Agricultural, pharmaceutical, intermediate and other chemical industries. 6 - High viscosity liquid extraction and transportation in cosmetics, oil and other industries. 7 - Beer, yellow rice wine and other brewing related industries. 8 - Dairy, dairy and other food related industries.

Minimum Order: 1 bags

QJ, QJD series stainless steel multistage deep well submersible pumps are composed of motors and multistage impellers. The pumps are composed of impellers, guide blades, pump bodies, inlet and outlet joints, as well as pump shafts, axle sleeves and guide bearings. The motor adopts double end face mechanical seal, and the seal ring is "O" rubber for static seal. Pump shell adopts 201 seamless stainless-steel tube, 100% copper motor, high polymer plastic impeller and has the advantages of simple structure, high efficiency, low noise, safe and reliable operation, easy installation and maintenance. QJ, QJD series stainless steel multi-stage deep well submersible pumps are widely used in deep Wells, hot Wells and ocean extraction, and also in rivers, reservoirs and canals, etc. They are mainly used for farmland irrigation and water for people and livestock in highland mountains, and also for water supply and drainage in cities, factories, railways, mines and construction sites. QJ, QJD series multi-stage deep well submersible pump can be divided into tens or hundreds of meters underground to extract raw water. It can also be used as a fountain pump, more operations in the municipal square fountain, etc. The pump has multipurpose, small volume, light weight, obvious effect, cheap price etc. 1 - The electric pump motor adopts the F insulation class and can withstand temperature up to 155℃. The motor is filled with special oil for machinery. 2 - The main parts of the unit are made of stainless steel. The upper end cover of the motor, the pump head and the inlet joint are available in copper and nickel-plated iron. 3, the unit wear resistance and rust, beautiful appearance, easy to install. 4, the hydraulic performance of the electric pump is excellent. Pump can be used in full head. QJ, QJD pump is especially suitable for groundwater extraction in factories, schools and rural areas. It is the most ideal equipment for groundwater extraction in geological and hydrological engineering, industry, civil use and drainage and irrigation.

Minimum Order: 1 bags

AY type high temperature centrifugal oil pump is divided into six structures: single-stage single-suction cantilever type, two-stage single-suction cantilever type, single-stage single-suction cantilever type, single-stage double-suction double-support type, two-stage single-suction double-support type and two-stage single-suction double-support type. AY type high temperature centrifugal oil pump is especially suitable for conveying high temperature and flammable, explosive or toxic liquid. The installation method is horizontal center line support. The suction flange and outlet flange of the pump are cast on the pump body and are vertically upward. The bearing chamber (packing box) and the pump cover are cast into one, which can be used for packing seal, balanced type, flow type and series mechanical seal. An optional jacket of a water-cooled chamber is cast outside the shaft seal chamber. The water-cooled chamber shall be specially provided or provided when the conveying medium is water with a temperature exceeding 66 ° c and hydrocarbon action exceeding 150 ° c. Impeller for the whole casting, and through static balance check, the axial force of the pump mainly depends on the impeller balance hole to balance. The bearing body is equipped with a set of radial ball bearings and a set of thrust ball bearings mounted back to back. The bearings are lubricated with thin oil of oil swing ring. The external surface of the bearings is cast with heat sink, which can be cooled by air (T <120℃), fan cooling (T =120-260℃) and water cooling (T =260-420℃). Pump maintenance does not have to disassemble the suction or discharge pipeline. It is easy to disassemble the impeller, shaft, bearing, shaft seal and other parts. The shaft seal adopts mechanical seal. The pump is driven directly by a motor through a flexible diaphragm extension coupling. Viewed from the direction of the motor, the pump rotates counterclockwise. AY type high temperature centrifugal oil pump can be used in petroleum refining, petrochemical and chemical industries and other places to transport petroleum, liquefied petroleum gas and other media without solid particles. Flow: 1 to 612m3/h Head: 370 to 670m Liquid temperature: -20 to 400Degree Celsius. Pump material: cast iron, cast steel, alloy steel

Minimum Order: 1 bags