Offers to Sell

In modern industrial systems, sealing reliability is a key factor in ensuring operational stability, particularly in environments where pressure, temperature, and chemical resistance intersect. One solution that has gained attention across sectors such as automotive, hydraulic, and petrochemical is the Combination Gasket Seal—a component that integrates metal and elastomer materials to provide multi-functional sealing performance. Rather than relying on single-material gaskets, Bonded Seals are designed to offer both structural support and flexible sealing in a single unit. Typically, these products consist of a metal washer or frame—often carbon steel, stainless steel, or brass—bonded to a layer of rubber material like NBR (nitrile rubber), FKM (fluoroelastomer), or EPDM, depending on the medium and environment. Where Are Combination Gasket Seals Used? These seals are commonly used in: Hydraulic pipe connections, especially in mobile equipment or compact manifolds Automotive fluid systems, including fuel injection components and transmission housing High-pressure gas systems where vibration or surface irregularities may cause conventional seals to fail Oil and gas flange interfaces that require both sealing and mechanical retention Their versatility makes them a suitable choice for sealing static interfaces that must remain leak-free under pressure without relying on external sealing compounds. Key Benefits and Performance Features Dual-sealing capability: The metal component ensures stability and pressure resistance, while the rubber layer provides conformity and adaptability to surface imperfections. Easy installation: Most combination gasket seals are designed for drop-in use, eliminating the need for additional sealants or surface preparation. Material flexibility: Manufacturers can select rubber grades tailored for oil, fuel, water, or aggressive chemicals, offering compatibility across various industries. Temperature tolerance: Depending on the elastomer used, seals can operate in a wide temperature range with minimal performance degradation. Reduced maintenance: A proper combination seal reduces the likelihood of leaks over time, lowering maintenance needs and replacement frequency. Customization and Quality Control Many Chinese and international manufacturers now offer custom-designed combination gaskets for specific pressure ratings, flange sizes, or material requirements. Whether the client needs a specific durometer hardness, thickness, or groove fitment, custom production is often available after prototype validation. During manufacturing, strict quality control procedures—including dimensional inspections, material tests, and compression set analysis—are conducted to ensure product consistency and performance integrity.

Minimum Order: 1000

Liquid Crystals for PDLC Smart Film QYPDLC-421 CE5 4-((2s)-2methylbutyl)phenyl 4-(octyloxy)benzoate 69777-61-3 Established in 2007, Qingdao QY Liquid Crystal Co., Ltd is a leading manufacturer specializing in high-quality nematic liquid crystals, primarily used in PDLC smart film and high grade of LC display. With over 18 years of nematic liquid crystals production expertise. Our LCs are widely exported to Europe, the United States, South Korea, and other global markets. The capable of our producing approximately 5000 kilograms per month. We signed the Exclusive Agency Agreement with our South Korean customer from 2011

Minimum Order: 20 square metres

TOFFON freeze dryer TF-SFD-2 Product Overview： SFD Pilot-type Freeze-Dryer simplifies the cumbersome operation of small freeze- dryers, prevents material contamination, and accelerates the sublimation of material moisture. This series of models features shelf heating and programmable functions, allowing users to view the freeze-drying curve and conveniently observe the material's freeze-drying process. 1. In-site pre-freeze drying,fully automatic operation. Equipment features: 2. Special thermal oil for efficient heat conduction, high temperature control precision, shelf temperature difference ≤1°C, achieving uniform drying effect. 3. 304 stainless steel square trays, resistant to deformation and corrosion, easy to clean. 4. Touch screen operation, PLC control,can set startup password, display drying curves. 5. Equipped with an inflation valve, capable of introducing inert gas during drying. the drying chamber features a high-transparency colorless transparent organic glass door, providing a clear observation of material changes during operation. 6. Adjustable temperature and vacuum regulation functions, controllable production process, capable of storing multiple programs, each with 36 segments. the freeze- drying machine can modify program parameters during operation and record vacuum drying curves and data online.

Minimum Order: 1 bags

The multi-layer rubber textile conveyor belts we offer are composed of three components: cloth cover, carcass cover and skim cloth.  The rubber cover is a unique rubber compound suitable for different purposes, like abrasion resistance, high temperature resistance, cold strength, acid resistance, fuel resistance and many others. Material Quality Nylon (NN)  Highly flexible.  Highly resistant againstimpact. Highly bendable.  Polyester (EP)  Less elongation.  Less deformed by heat.  Less affected by moisture. Cotton (CC56)  Good Price. Structure The multi-layer conveyor belts we offer feature our renowned multi-layer EP construction (warp knitted polyester and weft knitted nylon). These rubber textile conveyor belts are also equipped with a special rubber layer (coating layer) that has excellent fabric bonding properties. The top layer of the belts features a highly wear-resistant cover for heavy-duty applications or special covers upon customer request.

Steel cord conveyor belts have proved to be a very reliable and cost-efficient mode of bulk material handling in long distance conveyors. we provide transverse reinforcementand, embedded sensor coil and normal type steel cord belt conveyor belt.  (1) Belt elongation: ST500~ST5000(kN/m) (2) Belt width: 600~2200mm (3) Minimum length: 100m Our steel cord conveyor belts are crafted with premium high-tensile steel cords and a selection of cover grades to suit various industrial needs. A standard construction with 7 x 7 hot-dip galvanized steel cords offers exceptional tensile strength reaching up to 2,000 N/mm. For applications demanding even greater strength, we provide a 7 x 19 configuration capable of withstanding up to 10,000 N/mm. The cords are designed with an elongation rate of 0.22 - 0.28%, ensuring high structural integrity and pull-out strength. This contributes to superior fatigue resistance. The open cross-lay cord structure, combined with a robust chemical adhesive system, allows for thorough core rubber penetration, ensuring a strong bond and long-lasting protection against corrosion.   Versatile Cover Grades We offer a range of cover grades, all composed of top-tier rubber that exhibits extreme resistance to abrasion, cutting, and impact, while also boasting excellent resistance to aging. The choice of cover grade is application- specific and significantly impacts the belt's service life. Selecting the appropriate belt for your needs minimizes waste and supports your sustainability goals.   Wear-Resistant Options For heavy-duty conveying tasks involving bulky and sharp materials, such as abrasive rocks, our belts are available in X, Y, W grades (and equivalents). These high-quality cover grades provide optimal protection for the belt carcass, ensuring extended service life.   Heat-Resistant Variants We provide specialized grades for high-temperature applications, including T120 and T200, suitable for materials like clinker, coke, foundry sand, and slag. These Conveyor belts are designed to handle continuous temperatures up to 190°C, with the ability to withstand brief temperature spikes of up to 200°C.   Flame-Resistant Compliance Our belts are available in a flame-resistant grade K, compliant with ISO 340. These belts are ideal for use in tunnel projects, although not recommended for underground applications. For personalized advice and to determine the most suitable belt and cover grade for your specific operations, please reach out to our Hi Hero specialists.

Oil resistant conveyor belt is used in greasy situation, conveying oily materials such as mineral oil, vegetable oil, animal oil, organic solvent in food processing plants or chemical factories. The conveyor belt uses multiple layers of EP/nylon fabric as the reinforcement layer, and the surface is covered with an oil-resistant rubber layer made by a special formula and process. Ordinary conveyor belts are prone to expansion, deformation, and surface peeling when in contact with or soaked in oily materials. HI HERO uses a unique rubber formula technology to significantly improve the conveyor belt's anti- expansion, anti-deformation, wear resistance, impact resistance, anti-aging, and light resistance properties, ensuring its stability and durability under complex working conditions. Our oil-resistant conveyor belts are designed to withstand the challenges of environments where oil and grease are common. These belts are engineered to maintain their strength and flexibility even when exposed to oil, ensuring reliable operation in tough conditions. Applications Oil-resistant 210 black NBR (nitrile) Resistant to aromatic solvents, halogenated hydrocarbons, ketones and oils (except esters). The cover rubber has excellent abrasion and tear resistance. Oil resistant 220 black NBR + NR (nitrile + natural) Suitable for applications requiring mild oil resistance and oil/cold resistance. Commonly used for transporting wood chips, frozen fish, grains, etc. Oil resistant 300 PVC + NBR (vinyl + nitrile) poly blend Highly oil resistant, suitable for general food transport (except for food to be eaten directly). Caution may occur when the operating temperature exceeds 80°C. Standard stock is one side white and one side green. Oil-resistant 310 black, oil-resistant 330 white, oil-resistant 340 green PVC + NBR (vinyl + nitrile) This is a custom color product of the Oil-resistant 300 series. This section mainly focuses on the material types, oil resistance and applicable scenarios of oil-resistant conveyor belts, and details the characteristics of oil-resistant conveyor belts with different formulas (such as NBR, PVC, etc.) in terms of chemical corrosion resistance, wear resistance, temperature resistance, etc., as well as their applications in food, industry and other fields.

We provide cold resistant conveyor belts, meticulously engineered with rubber cover grades to ensure seamless operation in the harshest cold environments. These belts are designed to maintain their integrity and performance in temperatures as low as –40 to –60 degrees Celsius. Cold resistant conveyor belt structure EP rubber conveyor belt consists of upper cover rubber, carcass and lower cover rubber. The carcass of the conveyor belt consists of fabric and rubber layer. We provide EP100, EP125, EP150, EP200, EP250 and other strength conveyor belt fabrics. The carcass thickness and fabric layers are customized according to the requirements of the conveyor belt.   Material of cold resistant conveyor belt The Material of our cold resistant conveyor belts is Ep Nylon Cotton, those fabric inside ensures the belts retain their exceptional strength, elasticity, and impact resistance even in the most frigid conditions. Two Types of Cold Resistant Conveyor Belts for option: According to different cold resistance performance, it is divided into two types: C1 and C2 C1: Operating temperature range: -45°C to +50°C. C2: Operating temperature range: -60°C to +50°C.

High temperatures are a real challenge for conveyor belts and can cause a lot of damage. When it's hot, the rubber on the belt ages quickly, making it hard and causing cracks. The heat also harms the main body of the belt because it weakens the bond between the outer cover and the belt's core, as well as between the layers of fabric inside the core. This can literally make the belt fall apart, a problem we call "de-lamination." As the rubber gets harder and less stretchy from the heat, its ability to stretch before breaking can drop by up to 80%, which really hurts its strength and flexibility. Plus, its resistance to wear can decrease by 40% or more. But, as the reference guide shows, Hi hero heat-resistant belts are really good at handling heat, and they last much longer than other belts out there. A QUICK REFERENCE GUIDE TO HIHERO HEAT RESISTANT COVERS  Heat-Resistant Conveyor Belt Design Cover rubber: SBR, EPDM rubber or chlorobutadiene rubber. Carcass: polyester cloth or nylon cloth. According to the client’s request, we can make an endless belt. The heat-resistant conveyor belt is made up of multi-layer structure to ensure exceptional durability and performance under high-temperature conditions. Its construction includes a high-temperature burning layer, a transition layer, an organic insulation layer, and a robust heat-resistant layer. Each layer is meticulously designed to work in harmony, providing superior resistance to heat, wear, and mechanical stress. The rubber surface is crafted using premium materials such as EPDM (Ethylene Propylene Diene Monomer) or SBR (Styrene-Butadiene Rubber), both of which offer excellent heat resistance and flexibility. For the reinforcing layer, high- strength materials like polyester canvas or high-permeability fabric are utilized, ensuring the belt maintains its structural integrity even under extreme conditions. These layers are seamlessly bonded together through high-temperature vulcanization, a process that enhances the belt's overall strength, elasticity, and longevity. This advanced manufacturing technique ensures the conveyor belt can withstand demanding industrial environments, making it ideal for applications in industries such as steel, cement, and chemical processing. Heat resistant conveyor belt Technical data:  heat resistant conveyor belt cover type T1 able to bear the temperature range of material less than 120°C. T2 able to bear the temperature range of material 120°C – 140°C  . T3 able to bear the temperature range of material 150°C – 180°C. T4:able to bear the temperature range of material 180°C – 400°C T5:able to bear the temperature range of material 240°C800°C Based on your material, choose the correct conveyor belt.

Sulfuric acid transfer pump: Concentrated /thick Sulfuric acid pump Concentrated sulfuric acid pump on the market are mainly fluorine plastic pump (F46) and cast iron pump, cast iron pump advantage is cheap, suitable for conveying high concentration of concentrated sulfuric acid; But if the occurrence of dilute sulfuric acid (sulfuric acid concentration decreased), cast iron is not resistant to dilute sulfuric acid corrosion will appear damage. The advantage of fluorine plastic pump is suitable for conveying arbitrary concentration of sulfuric acid, a wider range of application; The disadvantage is that the price cost is higher than cast iron pump. Dilute sulphuric acid pump At present, the main engineering plastic horizontal pump and steel lining plastic horizontal pump are widely used in China. Ultra high molecular weight polyethylene (UHMWPE) is used to make the flow parts of engineering plastic pump and steel plastic lining pump, which has excellent corrosion resistance, abrasion resistance and impact resistance. Dilute sulfuric acid pump is usually horizontal, single stage, single suction, bracket type centrifugal pump, suitable for the temperature of -20 to 100 degree celsius. The seal of the pump adopts mechanical seal, dynamic seal and packing seal and other sealing forms, which can not only transport dilute sulphuric acid clear liquid, but also transport slurry containing solid particles and wastewater containing various impurities.

Minimum Order: 1 bags

Keysight N9912A/104 FieldFox Handheld RF Analyzer, 4 GHz Product Overview: The Keysight N9912A/104 FieldFox Handheld RF Analyzer is a compact and portable instrument designed for field testing and troubleshooting of RF systems. With a frequency range of up to 4 GHz, it offers a wide range of capabilities for analyzing RF signals. Features and Specifications: Frequency range: 9 kHz to 4 GHz Dynamic range: >100 dB Measurement accuracy: ±0.5 dB Sweep speed: Up to 1000 sweeps/second Display: 5.7-inch color LCD touchscreen Battery life: Up to 8 hours Weight: 2.5 lbs What’s in the Box: N9912A/104 FieldFox Handheld RF Analyzer Rechargeable battery AC adapter USB cable Quick start guide

Minimum Order: 1 bags

Features and Specifications: Anritsu MA24330A Microwave CW USB Power Sensor Product Overview: The Anritsu MA24330A is a high-performance Microwave CW USB Power Sensor designed for accurate and reliable power measurements in various applications. With its wide frequency range of up to 33 GHz and a dynamic range of -70 to 20 dBm, it offers exceptional versatility and precision. Features: Frequency range: 10 MHz to 33 GHz Power range: -70 to 20 dBm Accuracy: ±0.5 dB (typical) Resolution: 0.01 dB USB 2.0 interface for easy connectivity Compact and lightweight design Compatible with MA243XXA Series Power Sensors Specifications: Sensor type: Thermocouple Connector type: 3.5 mm (f) Calibration factor: K(m) Operating temperature: 0 to 50°C Storage temperature: -20 to 70°C Dimensions: 100 x 50 x 25 mm Weight: 150 g

Minimum Order: 1 bags

Features and Specifications: Anritsu MA24441A USB Peak Power Sensor, 40 GHz, Low Noise Product Overview: The Anritsu MA24441A USB Peak Power Sensor is a high-performance instrument designed for accurate and reliable peak power measurements in various applications. With its wide frequency range of up to 40 GHz and exceptional low noise performance, it provides precise and repeatable results. Features: Frequency range: 10 MHz to 40 GHz Peak power range: -70 dBm to +20 dBm Low noise floor: < -110 dBm Fast measurement speed: < 100 μs USB 2.0 interface for easy connectivity Compact and portable design Specifications: Accuracy: ±0.5 dB (typical) Resolution: 0.1 dB Input impedance: 50 ohms Connector type: 2.4 mm female Power supply: USB 2.0 bus Dimensions: 100 mm x 60 mm x 25 mm Weight: 150 g What’s in the Box: MA24441A USB Peak Power Sensor USB cable Quick start guide

Minimum Order: 1 bags

Keysight N8482A/100/STD RF Power Sensor Product Overview The Keysight N8482A/100/STD RF Power Sensor is a high-performance, USB- powered sensor designed for accurate and reliable RF power measurements. It offers a wide dynamic range, high accuracy, and fast measurement speed, making it ideal for a variety of applications, including: Transmitter power measurements Amplifier gain measurements Antenna gain measurements Return loss measurements Features and Specifications Frequency range: 10 MHz to 18 GHz Power range: -70 dBm to +44 dBm Accuracy: ±0.5 dB Resolution: 0.01 dB Measurement speed: 100 readings/second USB 2.0 interface Compact and lightweight design What’s in the Box N8482A/100/STD RF Power Sensor USB cable Quick start guide Benefits High accuracy and reliability: The N8482A/100/STD RF Power Sensor provides accurate and reliable RF power measurements, ensuring confidence in your results. Wide dynamic range: The wide dynamic range of the sensor allows you to measure a wide range of power levels, from very low to very high. Fast measurement speed: The fast measurement speed of the sensor allows you to quickly and efficiently capture data, saving you time and effort. Easy to use: The N8482A/100/STD RF Power Sensor is easy to use, with a simple and intuitive interface. Compact and lightweight: The compact and lightweight design of the sensor makes it easy to carry and use in a variety of environments. Value to the Customer The Keysight N8482A/100/STD RF Power Sensor offers a number of benefits to customers, including: Improved accuracy and reliability: The high accuracy and reliability of the sensor ensures that you can trust your measurements. Increased efficiency: The wide dynamic range and fast measurement speed of the sensor allow you to quickly and efficiently capture data, saving you time and effort. Reduced costs: The affordable price of the sensor makes it a cost-effective solution for your RF power measurement needs.

Minimum Order: 1 bags

Keysight 8487D Diode Power Sensor Product Overview The Keysight 8487D Diode Power Sensor is a high-performance power sensor designed for accurate and reliable power measurements in a wide range of applications. With its wide frequency range of 50 MHz to 50 GHz and power range of -70 to -20 dBm, it is ideal for use in testing and characterizing RF and microwave devices and systems. Features and Specifications Frequency range: 50 MHz to 50 GHz Power range: -70 to -20 dBm Accuracy: ±0.5 dB Resolution: 0.01 dB Connector: 2.4mm Dimensions: 1.5″ x 1.5″ x 0.5″ Weight: 0.5 oz Benefits High accuracy and resolution for precise power measurements Wide frequency range for testing a variety of devices and systems Compact and lightweight design for easy portability Rugged construction for durability in harsh environments Value to the Customer The Keysight 8487D Diode Power Sensor provides customers with a high- quality, reliable, and versatile power measurement solution. Its wide frequency range, high accuracy, and compact design make it an ideal choice for a variety of applications, including: RF and microwave device testing System characterization Power monitoring Quality control What’s in the Box Keysight 8487D Diode Power Sensor 2.4mm calibration adapter User manual

Minimum Order: 1 bags