Negotiable

Category: Others

Company: Hengshui Changjiang Prestressing Co., Ltd.

Product Description: Contact me to order processing of JZQZ-20000kN-ZX highway bridge friction pendulum isolation bearingsThe friction pendulum isolation bearing is a seismic isolation device that combines friction sliding with pendulum reset functionality, primarily used in bridges, buildings, and other engineering projects to effectively absorb seismic energy and reduce structural vibrations. Through friction energy dissipation and the pendulum effect, this bearing provides damping and automatic reset, making it suitable for high-intensity seismic zones and large-span structures.1. Product Features(1) Superior Seismic Isolation PerformanceFriction Energy Dissipation: Utilizes specialized friction materials (such as PTFE and high-strength alloys) to dissipate seismic energy through sliding.Pendulum Reset: Employs the pendulum effect of curved sliding surfaces to automatically return to the original position after an earthquake, minimizing residual displacement.Multi-Directional Adaptability: Capable of withstanding horizontal bidirectional (X/Y direction) displacements, adapting to complex seismic actions.(2) High Load-Bearing CapacityVertical load-bearing capacity can reach 5000~30000kN (varies by model).Horizontal load-bearing capacity is adjustable to meet different seismic grade requirements.(3) Strong DurabilitySliding surfaces use stainless steel + PTFE composite materials, offering wear resistance and corrosion resistance.Sealed structural design prevents dust and moisture intrusion, extending service life.(4) Easy InstallationStandardized design complies with specifications such as **GB/T 20688.3 "Rubber Isolation Bearings for Buildings"**.Suitable for prefabrication or on-site assembly, applicable to both new construction and reinforcement projects.2. Applicable Engineering ScopeHighway and Railway Bridges (especially in high-intensity seismic zones)Large-Span Buildings (e.g., stadiums, airport terminals)Nuclear Power Plants, Critical Public Facilities (requiring high seismic performance)Seismic Reinforcement of Existing Structures more>

$75

Category: Hardware & Tools/Abrasive Materials/Synthetic Abrasives

Company: Zhengzhou Haixu Abrasives Co., Ltd.

Product Description: Ultra-fine Platelet Alumina Powder 3μm for Semiconductor Packaging Grinding, Comparable to US WCA3PRODUCT/Product: Platelet Calcined Aluminum Oxide / Platelet AluminaDESCRIPTION/Product Introduction:Platelet calcined alumina powder, also known as tabulated aluminum oxide grinding powder. It is named after its particle crystal structure being in the shape of scales/flat plates. The crystal form of flake alumina is α-Al2O3, which has high hardness and grinding performance. In the electronics industry, polishing and grinding require high surface precision. To ensure precise grinding effects and yield, abrasive materials with sharp crystal shapes can no longer meet the requirements. The surface of the abrasive particles of flake/flat alumina is flat and smooth, and the diameter-to-thickness ratio of the particles can be adjusted by modifying the synthesis method. Grinding semiconductor chips or other microelectronic components is less prone to scratches, greatly improving the yield of qualified chips. The production of platelet calcined alumina adopts a high-temperature calcination method to promote lateral crystal growth and form regular hexagonal powders with a tabulated structure. The suspension-treated aluminum oxide grinding powder of platelet shape achieves a uniform particle size distribution, ensuring a fine grinding surface.Platelet alumina, also known as flat-plate alumina, is named for its scale/flat-plate-shaped particle crystal structure. The crystal form of platelet alumina is α-Al2O3, which exhibits high hardness and grinding performance. In the electronics industry, surface finishing during polishing and grinding demands high precision. To achieve fine grinding results and high product yield, abrasive materials with sharp crystal shapes are no longer sufficient. The abrasive particles of platelet/flat-plate alumina have a smooth and flat surface, and the particle diameter-to-thickness ratio can be adjusted by altering the synthesis method. When grinding semiconductor wafers or other microelectronic components, it is less likely to cause scratches, significantly increasing the yield of qualified chips. The production of platelet alumina employs a high-temperature sintering method to promote lateral crystal growth, forming regular hexagonal powders with a platelet structure. The washed and classified platelet alumina has a highly concentrated particle size distribution, contributing to consistent grinding surface quality.Platelet calcined alumina powder, also known as tabulated alumina powder. It is named for its particle crystal structure in the shape of scales/plates. Platelet alumina has a crystal form of α-Al2O3 and possesses high hardness and grinding properties. In the electronics industry, polishing and finishing require high surface precision. To ensure precise abrasive effects and productivity, abrasives with sharp crystal shapes no longer meet the requirements. The surface of platelet/flat alumina abrasive particles is flat and smooth, and the particle diameter-to-thickness ratio can be adjusted by modifying the synthesis method. Grinding semiconductor chips or other microelectronic components is less prone to scratching, significantly increasing the production of qualified chips. The production of platelet calcined alumina uses a high-temperature calcination method to promote transverse crystal growth and form regular hexagonal powder with a tabulated structure. After suspension treatment, platelet alumina powder achieves a uniform particle size distribution, ensuring a fine ground surface.CHEMICAL COMPOSITION/Chemical Composition:ItemGuarantee Value/Guaranteed Value（%）Typical Value/Typical Value（%）Al2O3≥99.099.45Fe2O3≤0.100.03SiO2≤0.200.08Na2O≤1.00.22PHYSICAL PROPERTIES/Physical Properties:Specific Weight/Specific GravityHardness/HardnessCrystal Phase/Crystal PhaseCrystal Shape/Crystal Shape3.90 g/cm³9.0 Mohs scaleα-Al2O3Tabulated/TabulatedPARTICLE SIZE DISTRIBUTION/Particle Size Distribution:SPEC./SpecificationD3(μm)D50（μm）D94（μm）HXTA4550.5-56.233-38.520.7-24.5HXTA4039-44.627.7-31.718-20HXTA3535.4-39.823.8-27.215-17HXTA3028.1-32.319.2-22.313.4-15.6HXTA2524.4-28.216.1-18.79.6-11.2HXTA2020.9-24.113.1-15.38.2-9.8HXTA1514.8-17.29.4-115.8-6.8HXTA1211.8-13.87.6-8.84.5-5.3HXTA098.9-10.55.9-6.93.3-3.9HXTA056.6-7.84.3-5.12.55-3.05HXTA034.8-5.62.8-3.41.5-2.1APPLICATIONS/Application Scenarios：lSemiconductor industry: Grinding and polishing of single crystal silicon wafers, siliceous wafers, piezoelectric quartz crystals, and compound semiconductors (gallium arsenide, indium phosphide). / Semiconductor industry: Grinding and polishing of single crystal silicon wafers, silicon-based wafers, piezoelectric quartz crystals, and compound semiconductors (gallium arsenide, indium phosphide).lGlass industry: Grinding and processing of crystal, quartz glass, picture tube glass screen, optical glass, LCD glass substrate, and piezoelectric quartz crystals./ Glass industry: Grinding and processing of crystal, quartz glass, cathode-ray tube glass screen, optical glass, LCD glass substrate, and piezoelectric quartz crystals.lCoating industry: Special coatings and plasma spraying fillers. / Coating industry: Special coatings and plasma spray fillers.lMetal and ceramic processing industry: precision ceramic materials, sintered ceramic raw materials, high-end high-temperature coatings, etc. / Metal and ceramic processing industry: precision ceramic materials, sintered ceramic raw materials, high-end high-temperature coatings, etc.PACKAGE/Packaging：10kgs/Bag+20kgs/Carton+1Ton/Pallet / 10kg small bag + 20kg carton + 1 ton pallet more>

$电议

Category: Chemicals/Adhesives & Sealants/Epoxy Adhesives

Company: Shanghai Jintainuo Material Technology Co., Ltd.

Product Description: Thermal Conductive Potting Compound for Power Modules as Replacement for LORD SC-320LVHCase Name: Thermal Conductive Potting Compound for Power Modules (Replacement for LORD SC-320LVH)Application Point: Thermal Conductive Potting for Power Modules Requirements:1. Thermal conductivity greater than 2.5 W/m·K;2. Good fluidity, viscosity around 4000 cps;3. Replacement for LORD SC-320LVHApplication Point Image:Solution: Two-component Silicone Thermal Conductive Potting CompoundThermal Conductive Potting Compound for Power Modules as Replacement for LORD SC-320LVH more>

$19

Category: Electrical Equipment & Supplies/Power Distribution & Transmission/Power Distribution Cabinets

Company: Shanghai Keyingfa Electrical Technology Co., Ltd.

Product Description: Shanghai Keyingfa Electric Technology Co., Ltd., after ten years of dedicated effort, has achieved mass production of M12 threaded interface connectors and sockets, as well as M8 connectors and sockets. The company has innovatively developed high-temperature-resistant and highly sealed socket products. Through scientific design and the selection of high-quality raw materials, the products offer high reliability, addressing urgent user needs and earning customer acclaim. With stable quality and significant production capacity advantages, timely delivery is ensured. The current annual production capacity is 1 million units. This product series has passed the EU CE environmental directive certification. The company is certified under the *** quality management system. The main products in this series include: M12 sockets (panel-mounted, PCB solder, special types), 7/8 connectors, mining connectors, solar simulators, M8 connectors, and more. Our company specializes in customizing products according to users' specific requirements. For more detailed product parameters or business discussions, please contact us. more>

$询价

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Dongguan Kuanghe Electronic Technology Co., Ltd.

Product Description: ProductNameMetal Code DiscProductMaterialImported Japanese Stainless Steel 304StandardThickness0.05mm-0.3mmProcessAdvantages1. No mold required; uniform holes, straight lines, no burrs; high precision, no clogging or broken lines;2. Customizable according to customer drawings and requirements, customer LOGO can be added for branded production;3. High precision, small lines can be as fine as 0.05mm;4. Good thermal stability, more stable performance under high temperatures during high-speed rotation;5. High shock resistance, not easily deformed or broken;PrecisionTolerance ±0.007mm DeliveryCycleFast response within 24 hours; standard sampling in 3 days, delivery in 7 days; bulk orders can be shipped in batches or dailyApplicationA digital encoder for measuring angular displacement. It has strong resolution, high measurement accuracy, and reliable performance, making it a commonly used displacement sensor for measuring shaft rotation angle.The code disc (grating disc) has several rectangular holes evenly distributed on a circular plate of a certain diameter. Since the photoelectric code disc is coaxial with the motor, when the motor rotates, the code disc (grating disc) rotates at the same speed as the motor. The detection device, composed of electronic components such as light-emitting diodes, detects and outputs several pulse signals. By calculating the number of pulses output by the photoelectric encoder per second, the current motor speed can be determined. (As shown below) more>

$2500

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Yantai Lesen Machinery Equipment Co., Ltd

Product Description: Due to fluctuations in raw materials, prices and models may vary. For specific quotations, please contact our sales staff. Thank you.SL Type Pneumatic Slurry Sampler CombinationLet's talk about the slurry pipeline sampler—it's essential for mineral processing! It collects slurry samples to provide a basis for subsequent analysis. It can handle different types of slurry with stability. With it, mineral processing work becomes twice as efficient! By the way, it requires no frequent manual intervention. Not only can it work continuously 24/7, but it can also flexibly adjust sampling parameters according to settings. Its efficiency is something you have to experience to believe!Product Introduction: The DN300 fully automatic slurry sampler features a simple and novel structure, reasonable design, and extremely convenient installation. Its standout feature is that it is installed along the pipeline direction, causing no drop loss to the main slurry. It imposes no requirements on slurry flow velocity, pressure, or flow rate, making it suitable for all conditions of slurry pipeline transportation (or gravity flow). The slurry flow is vertically and uniformly intercepted by the sampling spoon, fully meeting the requirements of mine slurry sampling. With high sampling accuracy and strong representativeness, it is an ideal device to replace other samplers.Sampling Targets: Various slurries, coal slurry, cement slurry, and other slurry materialsFully Automatic Mining Pipeline Sampler Detail Display Since using it, sampling work has become worry-free and effortless, and the data accuracy is remarkable. It's a must-have for our peers! more>

$55

Category: Instruments & Meters/Specialized Instruments/Other Specialized Instruments

Company: Yantai Lesen Machinery Equipment Co., Ltd

Product Description: 因原材料波动、因此价格型号也有不同,具体报价请联系销售人员，谢谢。说简单也不简单,说难也不难，防倒装置主要用于煤矿支护中，连接π型梁和单体支柱，达到固定单体支柱的作用，从而避免支柱因泄压倾倒伤人事故。作用:矿用防倒装置的主要用途是防止煤矿工作面支架歪倒和下滑，确保工作面的设备正常运作，从而保障煤矿生产安全‌‌。钢管直径φ35mm φ40mm φ44mm 颜色 银色 类别 防止倾斜 表面处理 镀锌单体防倒丝扣装置当立柱与立柱之间都采用防倒装置连接,便是把单一的点对点连接变为一个整体的面对面相连,由单一的支护变为关联性的整体支护,同时对每根支柱都起到“双保险”的作用,即使支柱的左侧有松动它的右侧也会紧紧地加固着它,极大地起到了安全的作用。防倒装置也相当于为超前支护整个的一个面加了一条整体的横梁使得超前支柱面更加稳固可靠。125mm防坠落装置顺利完成防倾倒的任务了。单体液压支柱硬链接装置的每组防倒装置都由两个花篮螺丝和两个抱箍所组成,两抱箍与相邻两立柱相紧扣中间用两蓝螺丝挂钩相连接。联系人：胡经理手机：16653525598 more>

$面议

Category: Chemicals/Separation Equipment/Filter Press Equipment

Company: Liaoning Bishui Weilan Technology Co., Ltd.

Product Description: Liaoning Bishui Weilan Technology Co., Ltd. is a specialized water treatment company integrating: water treatment methods, mobile sludge dewatering and packaging one-stop services, dewatering equipment leasing, production, compounding, processing, and sales of water treatment chemicals, water sample analysis and testing, paid on-site debugging, technology transfer, and other businesses.Mainly producing and selling: polyaluminum chloride (iron), composite double acid aluminum iron (specialized for plate and frame dewatering), polyferric chloride, composite carbon source, polyacrylamide, plate and frame filter press hydrophobic filtration aids, activated carbon, retention and filtration aids, defoamers, decolorizing agents, bactericides, deodorants, corrosion and scale inhibitors, algicides, cleaning and pre-filming agents, calcium oxide, calcium hydroxide, resins, heavy metal capture agents, and other products required for water treatment.The company's products and technologies are widely used in: water plants, sewage treatment plants, sludge disposal centers, petroleum, petrochemicals, drilling, papermaking, mineral processing and coal washing, leather, coal chemical industry, steel, printing and dyeing, food and beverages, pharmaceuticals and pigment intermediates, chemical plants, and other industries.Specialized Dewatering Filtration Aid for Plate and Frame Filter Press--Specialized for Drilling MudProduct IntroductionThe product is processed and compounded from various inorganic coagulants, organic flocculants, and catalysts.Product FeaturesThis product has obvious gel-breaking and wall-breaking effects. After entering the mud system, it quickly integrates and reacts with the mud. It fully utilizes the coagulation and wall-breaking principles of inorganic coagulants through charge collision destabilization and bridging adsorption to break the walls and coagulate the hydrophilic cell membranes of colloidal particles in the mud. At the same time, it works in conjunction with the large molecular chain structure of polymer flocculants to provide rapid coagulation and filtration assistance. This product can be added alone without the need for other flocculants to achieve ideal dewatering results. It is a highly efficient, harmless, and low-moisture-content composite mud dewatering agent specifically developed for various difficult-to-treat drilling muds, sulfonated muds, and other complex muds.Usage MethodThe solid product can be directly added to the mud. When adding, it should be evenly and slowly introduced into a stirred mud mixer. Stir for about 20 minutes before feeding into the filter press. It can also be diluted for use at a ratio of 5-10‰. Dosage (reference amount): when the mud concentration is 3000-6000 mg/L, use 1-2 kg (solid) per ton (mud). The specific dosage should be determined through on-site small-scale testing. more>

$0.37

Category: Others

Company: Shenzhen Mengjing Technology Co., Ltd.

Product Description: 深圳市孟京科技有限公司 联系人：陈小姐 电话：13421366133 主营产品：LED贴片端子 SMT连接器 SMD端子 照明并线端子 PCB插件端子 双向连接器端子 布线接线器 2PIN小体积贴片连接器2059无阴影LED贴片PCB板对线贴片端子 more>

$1500

Category: Machinery & Equipment/Engineering & Construction Machinery/Other Engineering & Construction Machinery

Company: Hebei Naixin Environmental Protection Technology Co., Ltd.

Product Description: Customized thickened rotor discharger, special-shaped airlock feeder, made-to-order based on provided drawings. The discharging device consists of three parts: motor, cycloidal pinwheel reducer, and rotary ash discharge valve.(1)By adopting the principle of planetary rotation, the input and output shafts are on the same axis and integrated with the motor, resulting in a compact structure, aesthetically pleasing and novel design, small size, and light weight. (2) Excellent sealing performance, uniform and stable feeding, smooth discharge operation, low noise, few failures, long service life, and high wear resistance. (3) The bearings and gearbox are located away from the valve body to avoid the effects of high-temperature dust. The front and rear end covers have good sealing performance, preventing dust leakage and extending the service life of moving parts and the lubrication system. (4) Strong overload capacity, low impact inertia, suitable for frequent starting and reverse rotation. (5) Special dedicated motors can be configured according to user needs, such as explosion-proof, frequency conversion, speed regulation, marine motors, etc., to meet specific requirements. Materials can also be specially processed as needed, such as high-temperature resistance, corrosion resistance, stainless steel, flexible blades, explosion-proof impellers, etc.Usage precautions: 1. Before using the star-type discharger, check the quantity and type of lubricating oil in the reducer. Replace the oil after one month of operation, and then annually thereafter. 2. Connect the air source interface and check if it is blocked by foreign objects; ensure the interface is clean and unobstructed. 3. Before using the star-type discharger, ensure that the rotor rotates clockwise (viewed from the reducer’s output shaft end, consistent with the arrow on the sprocket cover). 4. Before using the star-type discharger, open the sprocket cover to check the chain tension and inspect it regularly during operation. Apply suitable lubricant to the chain and sprocket. 5. Throughout the use of the discharger, adjust the pressure relief valve so that the pressure at the seal is 0.05 MPa higher than the material pressure inside the valve body. The gas used should be oil-free, dry compressed air. 6. During the entire use of the star-type discharger, the air source for the seal must always be present. Only after confirming that the valve has stopped operating can the air source be shut off.Customized thickened rotor discharger, special-shaped airlock feeder, made-to-order based on provided drawings. more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Shenzhen Jiujing Refrigeration Equipment Co., Ltd.

Product Description: Low-Temperature Air Unit for Scientific ResearchThe low-temperature air unit for scientific research is a wind cooling device that provides a cold source ranging from -5℃ to -40℃ for scientific experiments. At specific temperatures, researchers can read the physical data of the experiments. The temperature range of the low-temperature air unit for scientific research introduced by our company is as follows: the new natural air can reach a low temperature of -40℃ and operate continuously for 24 hours a day; the cold air can reach a low temperature of -90℃ and operate continuously for 24 hours a day.Working PrincipleAccording to the principle of the refrigeration system: low-temperature and low-pressure liquid refrigerant undergoes heat exchange with the air flowing into the evaporator in the evaporator. The evaporator absorbs heat from the air. During the evaporation process, the temperature of the refrigerant remains unchanged. The liquid refrigerant evaporates into low-temperature and low-pressure gaseous refrigerant and enters the compressor. After being compressed by the compressor, it becomes high-temperature and high-pressure gaseous refrigerant and then enters the condenser. In the condenser, it undergoes heat exchange with the natural air drawn and discharged by the cooling fan, expelling the heat of the high-temperature and high-pressure refrigerant out of the unit. The cooled refrigerant flows out of the condenser and passes through a dryer filter to remove moisture or other impurities contained in the refrigerant during the evaporation process. It then enters the expansion valve for expansion and throttling. Expansion and throttling is a process of rapid cooling, turning the refrigerant into low-temperature and low-pressure liquid. The refrigerant after this process re-enters the evaporator for heat exchange and evaporation, thereby completing the entire process of the refrigeration system. This cycle continues continuously, allowing the water to be continuously cooled. The cold air is then sent to the desired cooling destination through the fan from the air outlet.Unit Selection12. Touch screen human-machine interface.After-Sales ServiceAll equipment from our company comes with a one-year warranty and lifetime maintenance (excluding human factors and wear parts).Upon receiving the customer's written equipment repair notice, we respond within 36 hours for on-site repairs within Guangdong Province and within 72 hours for on-site repairs outside Guangdong Province.Unit Technical ParametersModelModelRefrigeration CapacityRefrigerating capacityCompressorCompressorEvaporatorEvaporatorCondenserCondenserAir Blowerwater pumpAir OutletAir outletDimensionsShape dimensionNet WeightNet weightkcal/hkwkwhpm3/hm3/hkwmmcmkgJRA-05AL1247014.53.755100050000.75125120×60×143160JRA-06AL1496417.44.56120060001.1125126×65×155220JRA-08AL1955223.23×28160080001.1150130×65×160240JRA-10AL24940297.5102000100001.5150148×70×168310JRA-12AL2992834.84.5×2122400120001.5180150×70×173430JRA-15AL3741043.55.5×2153000150002.2180160×75×190480JRA-20AL49880587.5×2204000200003200170×90×210660JRA-25AL5985669.69×2255000250003.75200190×100×210740JRA-30AL74820877.5×3306000300004200220×100×210810JRA-40AL997601167.5×4408000400005.5200240×140×220980JRA-50AL1247001457.5×55010000500007.5200250×150×2201200 more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Shenzhen Jiujing Refrigeration Equipment Co., Ltd.

Product Description: Low-Temperature Refrigeration Air Unit for Scientific ResearchLow-temperature refrigeration air units for scientific research are air-cooled refrigeration equipment designed to provide cold sources ranging from -5°C to -40°C for research experiments. At specific temperatures, researchers can read physical data from experiments. The temperature range of the low-temperature refrigeration air units introduced by our company: the new natural air can reach as low as -40°C and operate continuously for 24 hours a day; the cold air can reach as low as -90°C and operate continuously for 24 hours a day.Working PrincipleAccording to the principle of the refrigeration system: low-temperature and low-pressure liquid refrigerant undergoes heat exchange with the air flowing into the evaporator. The evaporator absorbs heat from the air. During the evaporation process, the refrigerant temperature remains unchanged. The liquid refrigerant evaporates into a low-temperature, low-pressure gaseous refrigerant and enters the compressor. After being compressed by the compressor, it becomes a high-temperature, high-pressure gaseous refrigerant and then enters the condenser. In the condenser, it undergoes heat exchange with the natural air drawn by the cooling fan, discharging the heat of the high-temperature, high-pressure refrigerant out of the unit. The cooled refrigerant flows out of the condenser through a dryer filter to remove moisture or other impurities contained in the refrigerant during the evaporation process. It then enters the expansion valve for expansion and throttling, which is a rapid cooling process. The refrigerant turns into a low-temperature, low-pressure liquid. After this process, the refrigerant re-enters the evaporator for heat exchange and evaporation, thereby completing the entire refrigeration system process. This cycle continues continuously, allowing the water to be continuously refrigerated. The cold air is then sent to the desired cooling destination through the fan from the air outlet.Unit Selection12. Touch screen human-machine interface.After-Sales ServiceAll equipment from our company: one-year warranty, lifetime maintenance (excluding human factors and consumables).Upon receiving the customer's written equipment repair notice, we will respond within 36 hours for on-site repairs within Guangdong Province and within 72 hours for on-site repairs outside Guangdong Province.Unit Technical ParametersModelModelRefrigeration CapacityRefrigerating capacityCompressorCompressorEvaporatorEvaporatorCondenserCondenserBlowerwater pumpAir OutletAir outletDimensionsShape dimensionNet WeightNet weightkcal/hkwkwhpm3/hm3/hkwmmcmkgJRA-05AL1247014.53.755100050000.75125120×60×143160JRA-06AL1496417.44.56120060001.1125126×65×155220JRA-08AL1955223.23×28160080001.1150130×65×160240JRA-10AL24940297.5102000100001.5150148×70×168310JRA-12AL2992834.84.5×2122400120001.5180150×70×173430JRA-15AL3741043.55.5×2153000150002.2180160×75×190480JRA-20AL49880587.5×2204000200003200170×90×210660JRA-25AL5985669.69×2255000250003.75200190×100×210740JRA-30AL74820877.5×3306000300004200220×100×210810JRA-40AL997601167.5×4408000400005.5200240×140×220980JRA-50AL1247001457.5×55010000500007.5200250×150×2201200 more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Shenzhen Jiujing Refrigeration Equipment Co., Ltd.

Product Description: Low-Temperature Freezing Air Unit for Scientific ResearchLow-temperature freezing air units for scientific research provide a cold source ranging from -5°C to -40°C for research experiments. At specific temperatures, researchers can read the physical data of experiments. The temperature range of the low-temperature freezing air units introduced by our company: the new natural air can reach as low as -40°C, operating continuously 24 hours a day; the cold air can reach as low as -90°C, operating continuously 24 hours a day.Working PrincipleAccording to the principle of the refrigeration system: low-temperature and low-pressure liquid refrigerant undergoes heat exchange with the air flowing into the evaporator in the evaporator. The evaporator absorbs heat from the air, and during the evaporation process, the temperature of the refrigerant remains unchanged. The liquid refrigerant evaporates into low-temperature, low-pressure gaseous refrigerant and enters the compressor. After being compressed by the compressor, it becomes high-temperature, high-pressure gaseous refrigerant and then enters the condenser. In the condenser, it undergoes heat exchange with the natural air drawn by the cooling fan, discharging the heat of the high-temperature, high-pressure refrigerant out of the unit. The cooled refrigerant flows out of the condenser through a dryer filter to remove moisture or other impurities contained in the refrigerant during the evaporation process. It then enters the expansion valve for expansion and throttling, which is a rapid cooling process. The refrigerant becomes low-temperature, low-pressure liquid, and after this process, it re-enters the evaporator for heat exchange and evaporation, thus completing the entire refrigeration system process. This cycle continues continuously, allowing for continuous refrigeration. The cold air is then sent to the desired cooling destination through the fan from the air outlet.Unit Selection12．Touch screen human-machine interface.After-Sales ServiceAll equipment from our company: one-year warranty, lifetime maintenance (excluding human factors and consumables).Upon receiving the customer's written equipment repair notice, we will respond within 36 hours for on-site repairs within Guangdong Province and within 72 hours for on-site repairs outside Guangdong Province.Unit Technical ParametersModelModelRefrigeration CapacityRefrigerating capacityCompressorCompressorEvaporatorEvaporatorCondenserCondenserFanwater pumpAir OutletAir outletDimensionsShape dimensionNet WeightNet weightkcal/hkwkwhpm3/hm3/hkwmmcmkgJRA-05AL1247014.53.755100050000.75125120×60×143160JRA-06AL1496417.44.56120060001.1125126×65×155220JRA-08AL1955223.23×28160080001.1150130×65×160240JRA-10AL24940297.5102000100001.5150148×70×168310JRA-12AL2992834.84.5×2122400120001.5180150×70×173430JRA-15AL3741043.55.5×2153000150002.2180160×75×190480JRA-20AL more>

Negotiable

Category: Electrical Equipment & Supplies/Industrial Control Systems/Frequency Inverters

Company: Shenzhen Ouyanghuasi Power Supply Co., Ltd.

Product Description: Three-Phase Input Single-Phase Output 45KVA Frequency Converter Product Parameters:ManufacturerShenzhen Ouyang Huasi Power Supply Co., Ltd.ModelOYHS-98845Output Capacity (KVA)45KVABrandOuyang HuasiAC InputPhase3φ4W (Three-Phase Four-Wire)Voltage380V±15%Frequency50HZ or 60HZ±10%Circuit TypeIGBT/SPWM Pulse Width ModulationAC OutputPhase1φ2W (Single-Phase Two-Wire)WaveformSPWM Method, Sine Wave OutputPower Factor﹥0.9VoltageLow Voltage0-150V Continuously AdjustableHigh Voltage0-300V Continuously AdjustableFrequency60HZ, 50HZ, 40-499.9HZ Continuously AdjustableCurrent(A)Low Voltage120V375A (0-150V)High Voltage240V187A (150-300V)Overall PerformanceLine Regulation﹤1%Load Regulation﹤1%Waveform Distortion﹤1%Efficiency﹥90%Response Time≤2msCrest Factor3:1Protection DevicesMultiple protections including over-voltage, over-current, overload, input under-voltage, over-temperature, short circuitDisplayDisplay InterfaceDigital LED DisplayVoltage4-digit digital voltmeter, resolution 0.1VCurrent4-digit digital ammeter, resolution 0.1APower4-digit digital wattmeterFrequency4-digit digital frequency meterEnvironment and OthersCooling SystemHigh-speed variable frequency fan cooling, forced air coolingOperating Temperature-10℃ to 50℃Relative Humidity0～90% (non-condensing)Altitude≤1500mWeight (KG)450Dimensions (H*D*W) mm1100*750*550Note:1. The above dimensions do not include the height of the casters.2. Can be customized according to customer requirements.3. The company's product specifications are continuously researched and improved; specifications are subject to change without prior notice. more>

Negotiable

Category: Electrical Equipment & Supplies/Low Voltage Electrical/Reactors

Company: Shenzhen Ouyanghuasi Power Supply Co., Ltd.

Product Description: Three-Phase Input Single-Phase Output 30KVA Frequency Conversion Power Supply Product Parameters:ManufacturerShenzhen Ouyang Huasi Power Supply Co., Ltd.ModelOYHS-98830Output Capacity (KVA)30KVABrandOuyang HuasiAC InputPhase3φ4W (Three-phase four-wire)Voltage380V±15%Frequency50HZ or 60HZ±10%Circuit TypeIGBT/SPWM Pulse Width ModulationAC OutputPhase1φ2W (Single-phase two-wire)WaveformSPWM method, sine wave outputPower Factor﹥0.9VoltageLow Range0-150V continuously adjustableHigh Range0-300V continuously adjustableFrequency60HZ, 50HZ, 40-499.9HZ continuously adjustableCurrent（A）Low Range120V250A（0-150V）High Range240V125A（150-300V）Overall PerformanceVoltage Regulation﹤1%Load Regulation﹤1%Waveform Distortion﹤1%Efficiency﹥90%Response Time≤2msCrest Factor3：1Protection DevicesMultiple protections including over-voltage, over-current, overload, input under-voltage, over-temperature, short circuitDisplayDisplay InterfaceDigital LED displayVoltage4-digit, digital voltmeter, resolution 0.1VCurrent4-digit, digital ammeter, resolution 0.1APower4-digit, digital wattmeterFrequency4-digit, digital frequency meterEnvironment and OthersCooling SystemHigh-speed variable frequency fan cooling, forced air coolingOperating Temperature-10℃ to 50℃Relative Humidity0～90%（non-condensing）Altitude≤1500mWeight（KG）350Dimensions(H*D*W）mm1100*750*550Shenzhen Ouyang Huasi Power Supply Co., Ltd.Contact: Mr. OuyangTel: 0755-23088216 (Main)Fax: 0755-23088220Mobile: 13418992245Website: www.ouyanghuasi.netAddress: Dalang Tongfu Village Industrial Zone, Dalang Street, Longhua New District, ShenzhenNote:1. The above dimensions do not include the height of the casters.2. Custom specifications are available according to customer requirements.3. The company's product specifications are continuously researched and improved; specifications are subject to change without prior notice. more>

$18

Category: Chemicals/Oxides/Silicon Oxide

Company: Qingdao Xinchanglai Silicone Co., Ltd.

Product Description: Color-changing silica gel possesses the adsorption and moisture-proofing effects of fine-pore silica gel. Its characteristic is that during the moisture absorption process, it turns light blue as moisture absorption increases, and eventually becomes light red or light pink. It can indicate the humidity of the environment and also visually show whether a new desiccant needs to be replaced.Blue silica gel has the adsorption and moisture-proof effect of narrow pore silica gel, It is characterized by the moisture absorption process, it can become Light blue with the increase of moisture absorption, and finally become light red or light pink. It can indicate the humidity of the environment and also visually show whether a new desiccant needs to be replaced.Color-changing silica gel is widely used for moisture-proof packaging in transformers, electrical cabinets, precision instruments, leather goods, clothing, and household appliances. It can be used alone as a desiccant or in combination with fine-pore silica gel. more>

Negotiable

Category: Others

Company: Henan Zhaodi Electronic Technology Co., Ltd.

Product Description: The Pest Information Collection System offers significant advantages over traditional pest monitoring methods, which are mainly reflected in the following aspects:1. High Level of Automation and IntelligenceThe Pest Information Collection System integrates modern sensor technology, image processing, and big data analytics, enabling automated processes such as pest attraction, elimination, dispersion, imaging, and data transmission. This entire workflow requires no manual intervention, greatly reducing the workload of field inspections and improving efficiency. Additionally, the system employs advanced image recognition algorithms and machine learning models to automatically identify pest species, quantities, and growth stages, achieving intelligent pest monitoring.2. Accurate and Reliable DataTraditional pest monitoring methods, such as manual field inspections and light trap collection, are often limited by human effort and observational capabilities, making it difficult to achieve comprehensive, timely, and precise results. In contrast, the Pest Information Collection System uses high-precision sensors and image recognition technology to collect and analyze pest data in real-time with high accuracy, providing a scientific basis for subsequent pest control measures. Furthermore, the system can perform in-depth analysis of historical data to predict potential pest outbreak risks, further enhancing data accuracy and reliability.3. Real-Time Monitoring and Early WarningThe Pest Information Collection System features real-time monitoring and early warning capabilities. It operates 24/7 to continuously monitor pest activity in farmlands and immediately alerts users upon detecting anomalies. This immediacy and responsiveness enable users to take swift action to prevent further damage to crops. The system also sends alerts via SMS, email, or app notifications, ensuring users stay informed about pest dynamics at all times.4. Remote Management and Decision SupportUsers can remotely access the system’s monitoring platform via the internet to view pest data, reports, and alerts from anywhere at any time. This remote management approach not only improves operational efficiency but also facilitates easier data analysis and decision-making. The built-in big data analytics module performs deep analysis of monitoring data, offering users scientific decision support. This helps in formulating more precise and effective pest control strategies, thereby enhancing crop yield and quality.5. Environmental SustainabilityTraditional pest control methods often rely heavily on chemical pesticides, which not only pollute the environment but also hinder sustainable agricultural development. The Pest Information Collection System addresses this by accurately identifying pest-infested areas and enabling targeted pesticide application, minimizing overuse. This approach reduces production costs, protects beneficial organisms such as natural predators, and helps maintain ecological balance in farmlands, promoting sustainable agriculture.In summary, the Pest Information Collection System plays an increasingly vital role in modern agricultural pest management due to its high automation and intelligence, accurate and reliable data, real-time monitoring and early warning, remote management and decision support, and contributions to environmental sustainability. more>

$900

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Nanyang Shouan Explosion-proof Electric Co., Ltd.

Product Description: Explosion-proof air conditioners are required in hazardous chemical warehouses because standard air conditioners may produce sparks during operation, which can trigger dangers. Hazardous chemicals refer to highly toxic chemicals and other substances that possess properties such as toxicity, corrosion, combustion, and oxidation, posing risks to human health, facilities, and the environment. Some hazardous chemicals release intense heat when exposed to high temperatures, impact, or reactive chemicals. To prevent hazardous chemicals from causing harm to the surrounding environment and people, some chemical warehouses need to install explosion-proof air conditioners. For hazardous chemicals that are temperature-sensitive and volatile solids or liquids, when the gas concentration reaches a certain level (limit), it is necessary to install explosion-proof air conditioners to reduce inventory loss, minimize environmental pollution, and ensure safety by controlling the temperature to meet safe conditions. Some reactive chemicals may also release intense heat under certain circumstances. more>

Negotiable

Category: Instruments & Meters/Temperature Instruments/Other Unclassified

Company: Shenzhen Yida Intelligent Technology Co., Ltd

Product Description: F59 Infrared Thermometer The Fluke F59 Infrared Thermometer | Fluke 59 Thermometer | F59 Temperature Gun Mini Digital Thermometer is a powerful tool for electrical engineers in daily electrical installation and maintenance work. The Fluke 59 Mini Infrared Thermometer provides fast and stable surface temperature measurements. Its compact and small design makes it easy to carry and operate in industrial environments.The Fluke 59 Infrared Thermometer is an essential tool for assisting electrical engineers in daily electrical maintenance and installation debugging. It offers a quick and accurate method for detecting surface temperatures, and its compact design ensures easy portability and operation. The Fluke 59 inherits the high repeatability, low scattering, high energy level, and high durability characteristics of Fluke infrared point thermometers, reflecting Fluke's higher requirements for precise temperature measurement and making it more suitable for accurate temperature measurement in industrial environments.F59 Infrared Thermometer | F59 Infrared Point Thermometer F59 | F59 American Fluke Technical Specifications Temperature Range      –18°C - 275°C (0°F - 525°F) Accuracy        100°C - 275°C (212°F - 515°F): Reading ±2%  prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" 0°C- 100°C(32°F- 212°F): Reading ±2°C(3.5°F) Below 0°C (32°F): Reading ±3°C(5.5°F) Repeatability        ±1% of reading or ±1°C, whichever is greater Emissivity        Preset 0.95 Distance-to-Spot Ratio     8:1, 90% energy level Response Time      Less than 500 milliseconds Display Resolution    0.2°C (0.5°F) Spectral Response      6.5–18 µm thermopile detector Display Hold       7 seconds available LCD Backlight     Available Temperature Unit      °C or °F selectable Low Battery Indicator    Available Operating Temperature   0°C - 50°C (32°F - 120°F) Relative Humidity      10% - 90% RH, non-condensing Storage Temperature      -20°C - 65°C (-4°F - 150°F) without battery Power Supply        9V battery Battery Life      4 hours Weight          200 grams, including battery Dimensions (L x W x H) 152 x 102 x 38 mm Standards          Complies with electromagnetic radiation and response standard EN 61326-1                    General safety standard EN 61010-1                    Laser safety standard EN 60825-1 Certifications          CE, CMC Warranty          1 year The company sells various tools and instruments: digital multimeters, infrared thermometers, ground resistance testers, digital insulation megohmmeters, process calibrators, clamp meters, clamp power meters, environmental detectors, anemometers, illuminance meters, digital sound level meters, non-contact tachometers, leakage circuit breaker testers, laser distance meters, and other instruments. The company also represents internationally renowned brands such as Fluke, Raytek, E+H, and FLIR. Available in stock, welcome to visit and purchase!  Store: https://shop33817184.taobao.com/ Mobile: 13590455705    QQ: 961744193 (same as WeChat) more>

Negotiable

Category: Others

Company: 山西金鼎誉诚认证服务有限公司

Product Description: National Military Standard Certification: The Access Code and Quality Cornerstone of the Military IndustryNational Military Standard Certification, specifically GJB 9001C certification, serves as the core standard for the quality management system in China's military industry. It is an essential key for weaponry and equipment contractors to enter the military market and is one of the mandatory access requirements. Based on the internationally recognized ISO 9001 standard, it fully incorporates stringent requirements for reliability, safety, confidentiality, and other aspects of military products. It covers the entire lifecycle management process of weaponry and equipment, from research and development to production, maintenance, and services, ensuring comprehensive quality assurance for military products.The Multiple Values of GJB 9001C National Military Standard CertificationGrant Qualification: Obtain the "admission ticket" for the research, development, and production of military products, helping enterprises enter the military field;Enhance Efficiency: Systematically improve the overall level of enterprise quality management and optimize management processes;Build Trust: Increase the confidence of military clients in the enterprise and stabilize cooperative relationships;Ensure Compliance: Align with the regulatory requirements of the National Defense Science and Technology Industry Bureau and the Equipment Development Department, enabling lawful and compliant operations. more>