$电议

Category: Chemicals/Organosilicon/Organosilicon Modified Materials

Company: 广州印田新材料有限公司

Product Description: YINK-A05(500) Silicone-Free Defoamer and Anti-Foaming AgentDefoamer, silicone-free, for unsaturated polyester resins, polyurethane, and epoxy systems; especially recommended for transparent systems, alsosuitable for epoxy floor systems.Chemical CompositionSubstance with defoaming properties, silicone-free.Typical Physical and Chemical DataThe data provided on this datasheet are standard values; the production technical specifications of the product are within their permissible tolerances.Appearance: Transparent or slightly turbid liquidDensity (20°C, g/ml): 0.87-0.89Refractive index (20°C): 1.495-1.498Flash point (closed cup): 46°CHazen color number: more>

$电议

Category: Chemicals/Organosilicon/Silica Gel

Company: 广州印田新材料有限公司

Product Description: YINK-A52(052) Silicone-Free Defoamer and Anti-Foaming AgentA non-silicone defoamer and anti-foaming agent suitable for solvent-based and solvent-free systems, widely used as a standard anti-foaming agent in many solvent-based coatings.Chemical CompositionSubstances with defoaming properties, free of silicone.Typical Physical and Chemical DataThe data provided on this page are standard values; production technical indicators are within allowable tolerances.Appearance: Transparent or slightly turbid liquidDensity (20°C, g/ml): 0.81Flash point (closed cup): 43°CApplication InformationCharacteristics and AdvantagesuYINK-A52 serves as a standard anti-foaming agent in most solvent-based coatings, with strong defoaming performance, particularly effective in non-polar systems. Its compatibility as a standard defoamer requires testing for its impact on varnish transparency and cratering. For systems requiring high transparency, our YINK-A51 is recommended.uYINK-A52 inhibits foam formation during the stirring and application of printing inks. It rapidly breaks foam without affecting intercoat adhesion and performs well in solvent-free radiation-curable printing inks and overprint varnishes.Recommended ApplicationsvPrinting inks and overprint varnishesvIndustrial coatingsvAutomotive OEM coatingsvWood and furniture coatingsvArchitectural coatingsvAnticorrosive coatingsRecommended Dosage0.1-0.8% based on the total formulation.The above dosage is empirical; the optimal amount should be determined through a series of tests.Packaging and Storage25KG or 170KG net weight / blue iron drumStore in a cool, dry, and well-ventilated warehouse, keep sealed, and handle with care during transportation. more>

Negotiable

Category: Machinery & Equipment/Compression & Separation Equipment/Crushing & Grinding Equipment

Company: 宜兴精新粉体设备科技有限公司

Product Description: Main Structure     The LSG series of pollution-free submicron ultrafine grinders integrate multiple advantages of modern grinding machinery, representing advanced contemporary models. The main structure consists of the machine body, grinding spindle (equipped with multiple sets of S-shaped corundum ceramic blades), grading wheel section, motor drive section, automatic control section, automatic feeding section, cyclone collection, and exhaust section.      Working Principle     The material to be ground is evenly fed into the machine body’s feed inlet via an automatic feeder. Inside the machine, an appropriate amount of grinding media—such as zirconia microbeads, alumina microbeads, or silica microbeads (selected based on grinding product requirements)—is loaded. After startup, the spindle drives multiple sets of S-shaped ceramic blades (e.g., 13 sets in the 400 model) to rotate, causing the media and material to be thrown and dispersed within the machine. This results in high-speed collisions and grinding between the media beads, refining the material. The refined material is lifted by the negative pressure created by the high-pressure blower in the exhaust section and, assisted by the airflow from the grading wheel, is transported to the collection system.     Main Features 1. The flow path and grinding components are made of highly wear-resistant 99% alumina, ensuring no contamination of any ground material and maintaining the quality of high-purity substances. 2. Direct motor-driven grinding results in low energy consumption, using only 30% to 50% of the energy required by equipment of similar capacity. 3. Grinding is the primary mechanism, producing spherical particles without edges and with high bulk density. 4. Variable frequency speed control allows processing of products with various hardness and fineness requirements.     Main Applications     Primarily used for high-end materials such as electronic materials, lithium battery cathode and anode materials, trichromatic phosphors, LED luminescent materials, pharmaceutical raw materials, and other high-tech, high-purity oxide materials requiring ultrafine grinding (submicron level).     Main Specifications and Technical Parameters:   Model Feed Particle Size (mesh) Grinding Fineness (um) Output (kg/h) Power (KW) LSG-400 more>

Negotiable

Category: Machinery & Equipment/Compression & Separation Equipment/Crushing & Grinding Equipment

Company: 宜兴精新粉体设备科技有限公司

Product Description: New Patent Product Patent Number: 200920256041.1    This product is the latest addition to pollution-free crushing machinery. It was developed to address the need for high-yield, high-efficiency models in pollution-free crushing and to overcome production bottlenecks in the large-scale manufacturing of new materials. It features ingenious design, simple structure, and high-speed, multi-point, multi-station crushing. The production capacity ranges from 30 kg to 1000 kg/h, with fineness between 100 and 300 mesh. The fixed and rotating discs are densely embedded with highly wear-resistant engineering ceramic cylinders. The rotating disc drives these cylinders at a linear speed of 40–60 meters per second, swiftly moving between the cylinders of the fixed disc to impact and grind the coarse powder added between them. After efficient crushing, the material is collected.    Features: 1. High efficiency; 2. Multiple model sizes and specifications; 3. Use of ultra-pure, highly wear-resistant ceramic cylinders ensures no contamination of materials; 4. Simple structure, easy disassembly, assembly, and cleaning; 5. Integrated electromechanical operation.    Technical Parameters:ModelFeed Particle SizemmCrushing Particle Size (mesh)Production Capacitykg/hInstalled Powerkw more>

$待定

Category: Machinery & Equipment/Compression & Separation Equipment/Screw Compressors

Company: 淄博金钥环保科技有限公司

Product Description: Screw Air Compressor Cleaner      During the normal operation of an air compressor, if the unit shuts down due to high temperature, the compressor head becomes stuck, or if contaminants such as gum clog the oil passage, leading to poor oil supply and rendering the air compressor inoperable due to overheating, it should be cleaned promptly based on production conditions.KD-L211B Screw Air Compressor Cleaner is a specialized product designed for cleaning air compressors without disassembly. It effectively addresses the common issue of carbon buildup during air compressor operation, achieving significant breakthroughs in both cleaning performance and product safety. This product offers excellent cleaning, lubrication, rust prevention, and corrosion inhibition effects. With simple cleaning procedures, it is an economical, environmentally friendly, and effective solution for removing carbon deposits, gum, and dirt from screw air compressors.Product Characteristics:Appearance: Yellowish-brown transparent liquidpH Value: 7.0Relative Density: 1.02–1.05Viscosity: 18–20Product Features:1. Synthetic ester-based cleaning oil formulation provides strong cleaning action along with lubrication performance.2. Free of acids and alkalis, non-corrosive to metals such as copper, iron, and aluminum, compatible with sealing materials, and offers excellent rust prevention after cleaning.3. During cleaning, it strongly disperses and dissolves gum, carbon deposits, and dirt without damaging the operating oil in the air compressor.4. Simple operation: online cleaning while the machine is running, taking only half an hour. Saves time and effort, safe, reliable, and cost-effective, reducing manual labor intensity. Contributes to energy savings in air compressors after use.Application Scope:KD-L211B Screw Air Compressor Cleaner (non-disassembly air compressor cleaner) is used for emergency cleaning and repair when the air compressor unit shuts down due to high temperature or the compressor head becomes stuck. It is also effective when gum and other contaminants clog the oil passage, causing poor oil supply and rendering the air compressor inoperable due to overheating. By adding this cleaner to the operating oil, normal operation of the air compressor can be restored.For product inquiries and technical questions, please contact the Technical Center of Shandong Kaidi Chemical Cleaning Division to request cleaning solutions and quotations.kaidihuagongzjz more>

$999

Category: Hardware & Tools/Combination Tool Sets/Hand Tool Sets

Company: 沧州市志远防爆工具有限公司

Product Description: Cangzhou Zhiyuan Explosion-proof Tools Co., Ltd. is a well-known domestic professional manufacturer integrating explosion-proof tools, special tools, anti-magnetic tools, and platform measuring tools series. The company produces over 400 series of explosion-proof tools with nearly ten thousand specifications. According to the Japanese standard JISM7002-96 and the Chinese standard GB10686-89, the pass rate is 100%. The explosion-proof tools mainly include the following categories:1. Various explosion-proof wrench series, such as explosion-proof梅花扳手, explosion-proof呆扳手, explosion-proof活扳手, pipe wrenches, double-ended梅花扳手, double呆扳手, striking梅花扳手, drum wrenches, F wrenches, etc.;2. Explosion-proof sockets and accessories, including socket heads, ratchet wrenches, etc.;3. Explosion-proof hammers, such as octagonal hammers, ball-peen hammers, round drum hammers, claw hammers, pickaxe heads, safety axes, etc.;4. Explosion-proof screwdrivers, explosion-proof files, shovels, and spades, such as flat-head screwdrivers, cross-head screwdrivers, putty knives, rust removal knives, scrapers, square shovels, pointed shovels, flat files, half-round files, round files, triangular files, etc.;5. Explosion-proof flat chisels, explosion-proof crowbars, scissors;6. Explosion-proof pliers, such as linesman pliers, needle-nose pliers, diagonal cutters, water pump pliers, locking pliers, slip-joint pliers, bench vises, etc.;7. Explosion-proof hacksaws, explosion-proof buckets, explosion-proof hand-operated oil pumps, anvils, beveled iron, ladles;8. Explosion-proof tool sets (21-piece, 24-piece, 28-piece, 36-piece, 50-piece, 100-piece sets);The above products can effectively prevent the flammability generated by friction and impact between tools and workpieces, ensuring national property and personal safety. They are widely used in industries such as petroleum, chemical, mining, anti-terrorism, anti-magnetic fields, coal mines, gas extraction, oil and gas pipelines, power generation, metallurgy, aviation, storage and transportation, pharmaceuticals, gas production, plastics, chemical fibers, leather, fireworks, firecrackers, etc.The company can also design and customize various special-shaped tools and supporting products for customers based on their needs, leveraging the most advanced R&D personnel, strong technical production capabilities, good corporate reputation, and years of production experience.Adhering to the business philosophy of "Quality First, Customer Supreme, Integrity-Based, and Continuous Improvement," the company sincerely hopes to develop and create brilliance together with all colleagues!Contact Person: Zhao QingyaoPhone:13333278272  QQ: 2423175938Website: http//:www.czzhiyuan.com more>

$15

Category: Chemicals/Adhesives & Sealants/Other Adhesives

Company: 东莞市建达胶粘制品有限公司

Product Description: Saliva glue (rewetting adhesive) is a water-soluble resin adhesive that is non-toxic, has no irritating odor, and has no adverse effects on the human body. This rewetting adhesive is applied to the surface of paper, where it quickly forms a film after the paper dries and absorbs it. The adhesive area becomes sticky again when it comes into contact with water.Main parameters of saliva glue (rewetting adhesive):1. Milky white emulsion2. Viscosity: 12,000–15,000 CPS  (3#/60rpm/25°C)3. pH value: 4.0–5.04. Solid content: 42%II. Applicable scope of saliva glue (rewetting adhesive):1. Various types of offset paper.2. Paper products such as envelopes, paper bags, paper boxes, book spines, etc. more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Zhongshan Qinggao Industrial Materials Co., Ltd

Product Description: LPS Le Pei Shen™: 03116 Electronic CleanerCFC-Free Electronic Contact CleanerCFC-free electronic contact cleaner is ideal for use on de-energized equipment where a plastic-safe, fast-evaporating liquid remover and contact cleaner is required.Fast evaporationNo residue or precipitationLow odorHCFC-free (dichlorofluoroethane)Safe for use on metal, plastic, fabric, and glass surfacesReversible spray valve allows spraying upright or invertedNSF® registration number #059813 aerosol, #059814 bulk K2Complies with or exceeds the following specifications:AMS 1525BASTM F-519, Type 1CMcDonnell Douglas CSD#1MIL-PRF-29608(AS)Specifications/Packaging03116312g (11 oz) aerosol031013.78L (1 gallon) can0310518.93L (5 gallon) pail03155208L (55 gallon) drum more>

$193

Category: Chemicals/Food & Feed Additives/Feed Antifungal Agents

Company: 郑州超凡化工有限公司

Product Description: Model: Food Grade, Industrial Grade, Feed GradePackaging: 25 kg cardboard drum (lined with polyethylene bag)Content: 99.9%Origin: Domestic/ImportedCAS: 16540-17-9Appearance: White crystalline powderUsage: SweetenerBrand: Yuetian Huatian 1/bag 20 kg/box[Product Name] Neotame[Product Alias] Neotame, Lesweet[Product Molecular Formula] C20H30N2O5[Product Appearance]Neotame is a white crystalline powder containing approximately 4.5% crystalline water.[Product Solubility]The solubility of neotame in water at room temperature (25°C) is 12.6 g/L, which fully meets normal production needs.[Product Features]Neotame has a pure, fresh, and natural sweetness, similar to aspartame, with no bitterness or aftertaste. Its sweetness is 8,000–10,000 times that of sucrose—8,000 times at 5% sweetness and up to 10,000 times at 2% sweetness. It also has high stability.[High Sweetness] Neotame is about 8,000 times sweeter than sugar, with lower cost per unit sweetness compared to aspartame.[Easy Absorption] The nutrients in neotame are easily absorbed by the human body.Neotame, chemically known as N-[N-(3,3-dimethylbutyl)-L-α-aspartyl]-L-phenylalanine-1-methyl ester, is a white crystalline powder containing about 4.5% crystalline water. It is a functional sweetener with a pure and harmonious sweetness, very close to aspartame, without the bitterness or metallic taste often found in other high-intensity sweeteners. It is 7,000–13,000 times sweeter than sucrose and 30–60 times sweeter than aspartame. Its energy value is almost zero. It remains stable under instant high-temperature conditions; for example, after baking at 450°C in cake production, 85% of neotame remains.1. Application in Canned FruitsReduces the overall specific gravity of syrup, thereby minimizing fruit floating and eliminating the need for additional fruit. According to GB2760, it is permitted as a sweetener in canned products. Neotame exhibits good stability during the heat treatment of canned products. Replaces 40%–50% of sucrose, reducing product costs. Shelf life: 12–24 months. Flavors: sweet orange, bayberry, loquat, lychee, pineapple, longan. Recommended sweetness multiple: 6,500–7,000.2. Application in Chewing GumApplication method: Add neotame to the original formula. Recommended dosage: coating: 15 ppm, gum base: 40 ppm.To balance costs, the weight of chewing gum can be reduced by 7–8%.Application advantages: Provides longer sweetness duration, meeting the need for extended sweetness. The sweetness and mint flavor of the product are correlated; as long as the sweetness persists, the mint flavor remains. Due to neotame's flavor-enhancing properties, the amount of mint flavoring in chewing gum can be reduced.Recommended addition methods: Use propylene glycol as a solvent—saturated solubility is 20%; use glycerol as a solvent—saturated solubility is 10%; pre-mix with powdered sugar or other powdered additives at a ratio of 1–2%.Note: It is not recommended to use flavoring directly as a solvent.3. Application in Tabletop SweetenersAs neotame is non-hygroscopic and low in energy, it is highly suitable as a tabletop sweetener. Studies show that neotame can be stored for at least 156 weeks as a tabletop sweetener.4. Application in Starch-Based FoodsAdding neotame to starch-based foods can inhibit starch aging and extend shelf life. Adding it to protein-rich foods like eggs and fish can inhibit protein denaturation and maintain good taste.5. Application in PharmaceuticalsNeotame, used as a sweetener in pharmaceuticals, only serves to improve taste without affecting efficacy.Its prolonged sweetness can mask the bitterness of medicines or the off-taste of vitamins and other substances. Its small dosage does not increase tablet volume. Used in oral liquids, it provides a clearer taste compared to sucrose.6. Application in Toothpaste and CosmeticsUsing neotame as a sweetener in toothpaste and mouthwash effectively maintains the product's cool characteristics. Neotame can also be used in cosmetics such as lipstick, lip balm, and bath moisturizers.7. Application in Cigarette FiltersThe technical bottleneck of sweetness in cigarette filters is its short duration, unable to last until the cigarette is finished. Neotame's prolonged sweetness effectively solves this problem.8. Application in Animal Feed: Effectively masks the bitter aftertaste of saccharin and improves feed palatability.Daily feed intake is a major factor determining livestock growth speed, especially for piglets and suckling pigs, affecting the entire growth process. Improving feed palatability increases daily intake, thereby accelerating growth.Livestock, particularly piglets and suckling pigs, have more sensitive taste than humans.Neotame's characteristics can compensate for and improve feed sweeteners: pure sweetness without bitter, astringent, or metallic off-tastes.Its prolonged sweetness masks the bitterness and metallic taste of saccharin, improving feed taste and masking off-tastes. It has a synergistic effect of 14–24% with saccharin. Recommended dosage: 0.05–0.1% for low-grade feed, 0.15–0.25% for medium-grade feed, and 0.3% or above for high-grade feed.[Product Packaging] Neotame is packaged with two layers of polyethylene plastic bags inside a cardboard drum. Net content: 25 kg.[Product Storage] Store neotame in a dry, clean, and cool place. Shelf life: two years. more>

Negotiable

Category: Chemicals/Pharmaceutical Raw Materials/Amino Acids & Derivatives

Company: 成都泰和伟业生物科技有限公司

Product Description: CAS NO:949-67-7EC NO:213-442-6Molecular Formula:C11H15NO4Molecular Weight:225.2411Synonyms:;ethyl tyrosinate;H-Tyr-OEt;Tyrosineethylester;L-Tyrosine ethyl ester;ethyl L-tyrosinate;Molecular Structure: more>

$300

Category: Lighting/Specialty Lighting/Explosion-Proof Lighting

Company: 新黎明防爆电器(常州)有限公司

Product Description: Product FeaturesOptical System Features: Utilizes imported chips with excellent luminous flux maintenance and high luminous efficacy. Employs Surface Mount Technology (SMT) to significantly enhance thermal conductivity. Features a meticulously designed honeycomb light distribution structure that effectively improves luminaire efficiency.Driver System Features: Adopts constant current drive with short-circuit and over-voltage protection functions.Type EA can serve as normal working lighting with emergency function; Type EB is solely for emergency lighting and remains off during normal operation. Both Type A and B can immediately activate emergency lighting during main power failure and can also be controlled via external switches to start at any time during power outages. Offers excellent electromagnetic compatibility, causing no interference to other electrical devices or power transmission networks, with the power supply itself possessing strong anti-electromagnetic interference capability. Supports wide voltage compatibility, tolerating up to 20% voltage fluctuation. The driver power supply uses potting technology to ensure components are protected from corrosion.Heat Dissipation System Features: Meticulously designed with a three-chamber independent structure to ensure stable operation of electronic components. Incorporates carefully designed heat dissipation vents with air guidance structure to guarantee LED light source lifespan. Features an independent power supply chamber design, ensuring power supply operation is unaffected by LED heat, thus ensuring stable and long-lasting performance.Overall Luminaire Structure Features: Adopts IC-level explosion-proof structure and IP66 protection rating, providing excellent explosion-proof and protective performance. Uses high-borosilicate tempered glass capable of withstanding high-energy impact. All exposed fasteners and accessories are made of highly corrosion-resistant stainless steel materials. Employs an integrated emergency chamber, eliminating the need for an additional emergency box, facilitating installation and maintenance. Utilizes a side-opening cover connection method for convenient user wiring and maintenance; offers multiple installation options for user selection.Patent Points: Patented three-chamber independent design structure and a ventilated lamp body with air convection function, featuring advantages such as minimal contact interfaces, large heat dissipation area, aesthetically pleasing appearance, and suitability for various applications. more>

Negotiable

Category: Chemicals/Laboratory Reagents/Other Chemical Reagents

Company: 枣庄市合泰水处理有限公司

Product Description: HT-0160 Reverse Osmosis Membrane Scale InhibitorI. Performance and ApplicationsHT-0160 reverse osmosis scale inhibitor is a high-efficiency scale inhibitor suitable for reverse osmosis (RO) systems, as well as nanofiltration (NF) and ultrafiltration (UF) systems. It prevents membrane surface scaling, improves water production and quality, and reduces operating costs.Features of HT-0160 reverse osmosis scale inhibitor:(1) Effectively controls inorganic scaling over a wide concentration range; the LSI allowable value can reach 2.8 without acid addition;(2) Does not form insoluble substances by coagulating with iron and aluminum oxides or silicon compounds;(3) Particularly effective in controlling iron, aluminum, and heavy metal contaminants; the allowable iron concentration on the feed side can reach 8.0 mg/L;(4) Effectively inhibits silica polymerization and deposition; the SiO2 concentration on the concentrate side can reach 290 mg/L;(5) Applicable to reverse osmosis CA and TFC membranes, nanofiltration membranes, and ultrafiltration membranes;(6) Excellent solubility and stability;(7) Effective within a feed water pH range of 5-10.II. Technical SpecificationsItemSpecificationStandard Solution11x ConcentrateAppearanceColorless to brown liquidColorless to brown liquidDensity (20°C) g/cm31.10±0.051.20±0.05pH (1% aqueous solution)1.5-3.51.5-3.5  III. UsageThe dosing amount of HT-0160 reverse osmosis scale inhibitor is determined based on a comprehensive water quality analysis report and the conditions of the reverse osmosis system. The general dosing amount is 2-8 mg/L. Within the recommended dosage range, it can control most types of scaling, including calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, iron hydroxide, aluminum hydroxide, and silica.IV. Packaging and StorageHT-0160 reverse osmosis scale inhibitor is packaged in plastic drums, 25 kg per drum, or as required by the customer. Store in a cool, ventilated indoor area. Shelf life is two years.V. Safety and ProtectionHT-0160 reverse osmosis scale inhibitor is weakly acidic. Pay attention to labor protection during operation. Avoid contact with skin and eyes. In case of contact, rinse thoroughly with plenty of water. more>

$10000

Category: Chemicals/Paints & Coatings/Printing Inks

Company: 台州精岳模具机械有限公司

Product Description: more>

$88000

Category: Others

Company: 重庆祺霖机械设备有限公司

Product Description: 本实用新型与现有技术相比的优点在于 适应当前国家 国际的环保要求 经过改良后该产品延续了干式喷砂设备高效节能的优势 同时也达到无尘效果 提高了用户使用效率和延长设备的使用寿命 充分发挥该设备的优越性 配合正确的操作方法以便提高用户的生产率 取得更好的经济效益HP1300-2A气动遥控型（双枪）砂罐容积: 2M³砂管长度: 18 m砂管口径:1 1/4in喷嘴口径:10mm供气量:6-8m³/min喷砂压力范围:0.5-0.7Mpa耗砂量:≤5 kg/min装砂间隔”30min（裝砂量为罐体总容积2/3计算） more>

$1000

Category: Metallurgy & Minerals/Mineral Resources/Mining Ventilation & Dust Removal Equipment

Company: 泰安高新区顺鑫网络科技服务中心

Product Description: Core AdvantagesAutomation and Intelligence: No manual operation required; infrared sensing enables automatic opening and closing, reducing personnel dwell time and enhancing safety (e.g., avoiding sparks from human contact with metal components in underground gas environments).Strong Wind Pressure Adaptability: The pressure-balanced structure equalizes environmental wind pressure, allowing the door to open easily in both positive and negative pressure environments, preventing jamming or damage caused by excessive wind pressure in traditional air doors.High Safety:Pneumatic drive eliminates electrical sparks, making it suitable for flammable and explosive environments;Anti-pinch function automatically stops or reverses the door when obstruction is detected during closing;Interlock design prevents air short-circuiting, ensuring ventilation system stability.Durability and Low Maintenance: The pressure-balanced structure reduces mechanical wear; pneumatic components are simple in design with low failure rates. Routine maintenance only requires periodic checks of air pressure, cleaning of sensors, and replacement of sealing strips.Improved Passage Efficiency: Rapid response to sensing signals, smooth opening/closing actions, suitable for continuous passage of personnel and vehicles, reducing waiting time.Maintenance PointsPneumatic System: Regularly check compressed air pipelines for leaks, ensure pneumatic valves and cylinders operate smoothly, clean impurities from filters promptly, and maintain stable air pressure (typically 0.4-0.6 MPa).Sensing System: Clean dust and moisture from infrared sensor surfaces, calibrate sensing distance and sensitivity to avoid false triggers or sensing failures.Door Body and Seals: Inspect door hinges for looseness, check sealing strips for aging or damage, tighten or replace as needed to ensure sealing performance.Control System: Periodically test interlock function, delayed closing, fault alarms, and other logic functions; back up control programs to prevent system failures. more>

$88

Category: Lighting/Specialty Lighting/Explosion-Proof Lighting

Company: 新驰电气(湖北)有限公司

Product Description: LED Explosion-Proof Light 50W/60W Maintenance-Free Explosion-Proof LampScope of Application:◆ Suitable for temperature groups T1 to T6 of explosive gas mixtures.◆ Suitable for hazardous areas of explosive gas mixtures: Zone 1, Zone 2.◆ Suitable for combustible dust environments: Zone 21, Zone 22.◆ Suitable for hazardous areas of explosive gas mixtures of Class IIA, IIB, IIC.◆ Suitable for fixed lighting in workshops or factories such as chemical plants, warehouses, boiler rooms, storage areas, tank farms, steel plants, etc.Structural Performance:◆ This product is designed and manufactured in full compliance with flameproof explosion-proof requirements, offering excellent explosion-proof effects and safe, reliable operation in various environments.◆ The housing is made of high-quality die-cast aluminum alloy, offering high strength and a surface Technical Parameters:Parameter Name ValueLight Source Type LED Light SourceLight Source Process SMD Surface-MountHousing Protection Rating IP65Housing Corrosion Resistance Rating WF2Power Factor ≥0.95Power Supply Efficiency ≥0.88Inlet Specification G3/4" (Φ6～Φ12mm)Light Source Color Temperature 5500K～6500KDimensions Φ205×115mmLamp Weight 2.8KgRecommended Installation Height 2m～5mRecommended Installation Distance 2m～3mExplosion-Proof Marking Exde IIC T6 Gb/Ex tD A2IP65 T80℃Power: 5W 10W 20W 30W 40W 50W 60W 70W 80W 90W 100W 110W 120W130W 140W 150W 160W 180W 200W 220W 240W 260W 300WInstallation Methods Ceiling-mounted (x), Pendant-mounted (g), Wall-mounted (b30°/b90°), Guardrail-mounted (h), Flange-mounted (f)Previously, in petrochemical enterprises, flameproof lighting fixtures were primarily used in explosive hazardous areas. With the application of increased safety electrical equipment in Zone 2 explosive hazardous areas, increased safety and composite lighting fixtures are increasingly being used. Increased safety lamps, while offering certain explosion-proof performance, have advantages over flameproof lamps, such as lighter weight, lower cost, easier installation and maintenance, and longer service life. The most commonly used composite electrical equipment in petrochemical enterprises is the increased safety-flameproof composite explosion-proof electrical equipment, generally consisting of three parts: flameproof components, increased safety terminals, and an increased safety enclosure. It combines the safety performance of flameproof types with the advantages of increased safety types. In daily maintenance, the following points should be noted.Explosion-proof lamps should automatically cut off power before the cover is opened. However, due to the complexity of interlock devices, this is not easily achieved, so most lamps only have a warning sign in a conspicuous place on the housing stating "Do not open when powered." Additionally, since the bulb surface temperature remains high after power-off, immediately opening the cover may still pose a risk of igniting explosive gas mixtures (mainly referring to flameproof structures). Therefore, for light sources with high surface temperatures like incandescent, high-pressure mercury, and high-pressure sodium lamps, and for lamps with quick-open covers, this must be carefully considered. The CeY-1 explosion-proof fluorescent lamp, widely used in our unit, features an interlock mechanism that cuts power when the cover is opened, providing convenience and safety for maintenance. Since fluorescent lamps are cold light sources with no high surface temperature, the cover can be opened immediately after power-off.Proper use of explosion-proof LED lamps is crucial, and these details are important. 1. Intermittent operation: It is recommended not to operate the lamp continuously for 24 hours, as continuous operation causes the lamp temperature to gradually rise. Higher temperatures significantly impact the lamp's lifespan, with higher temperatures shortening the lifespan further.2. The ambient temperature for using LED explosion-proof lamps should not exceed 60°C. Temperatures above 60°C may reduce the lifespan by two-thirds.3. Regularly start the lamp during use.4. Check the transparent parts of the lamp for signs of impact and the protective net for looseness, desoldering, corrosion, etc. If any issues are found, stop using the lamp and perform maintenance or replacement promptly.5. Regularly clean dust and other debris from the lamp housing (accumulated dust can block heat dissipation, leading to poor heat dispersion. This ensures good heat dissipation for the LED explosion-proof lamp). Good heat dissipation is a key factor in extending LED lifespan.6. Avoid frequent switching of the lamp, as the current during startup is higher than during normal operation, causing a rapid increase in filament temperature and accelerated sublimation, greatly reducing lifespan. Minimize switching as much as possible.7. Regularly check the voltage of the explosion-proof LED lamp circuit. If the voltage is unstable, perform line maintenance and inspection.8. Replace damaged light sources in explosion-proof LED lamps promptly to prevent electrical components like ballasts from operating abnormally due to the light source failing to start.9. When opening the lamp cover, follow the warning instructions: cut off power before opening. After opening, check the flameproof joint surface of the lamp for integrity, any abnormalities in the rubber seals, green or carbonized insulation on wires, and deformed or charred insulation parts and electrical components. If any issues are found, perform maintenance or replacement promptly.10. Regularly clean dust and dirt accumulated on the lamp housing and tube. For lamps used in humid environments, if moisture is present inside the lamp cavity, clean it promptly to prevent rust, damage, or electrical short circuits over time.Friendly reminder: The prices listed online are for display purposes only. Actual prices are subject to consultation with customer service! more>

$面议

Category: Chemicals/Inorganic Salts/Sulfates

Company: 泰安市永晟生物科技有限公司

Product Description: The molecular formula of aluminum sulfate is AL2(SO4)3, with a molecular weight of 342.15. It appears as a white rhombic crystalline powder or lump with a density of 1.69 g/ml (25°C). In the paper industry, it is used as a precipitant for rosin glue, wax emulsions, and other adhesives. In water treatment, it serves as a flocculant. It is also used as an internal retention agent in foam fire extinguishers, as a raw material for producing alum and aluminum white, as a decolorizing and deodorizing agent in petroleum, and as a raw material for certain pharmaceuticals. Additionally, it is employed in the manufacture of artificial gemstones and high-grade ammonium alum.Scope of Application:Primarily suitable for the manufacturing of high-grade paper whitening and sizing agents, post-coating treatment in titanium dioxide production, soil improvement, catalysts, water purifiers, and new building materials.Product Characteristics:The product features high whiteness, high transparency, low impurities, high solubility, and extremely low iron content.Product Grades and Main Quality Indicators:Product GradeAL2O3%≥Fe%≤Water Insolubles%≤pH≥SolidFlake15.80.0050.023.0Powder15.80.0050.023.0Packaging Specifications: 25KG, 50KG, 500KG, 1000KG more>

$895

Category: Machinery & Equipment/Compression & Separation Equipment/Drying Equipment

Company: Zhangjiagang free trade zone kenshine international trading Co.,LTD

Product Description: QW,LW,GW,WQ Series submersible not-clogging sewage pump Summary: Submersible type and pipeline type and vertical type etc not-clogging sewage pump is the new ones with energy-saving and high effiiciency. The pumps adopt the impeller with single passage and hard alloy double rotary seals. Electric motor is devided by oil chamber. The pumps have the advantages such as not-clogging and wearable and convenient operation and energy-saving and hight efficiency. The pumps are suitable to transport the industrial water and city waste water with solid grain and fiber. They can also be used as discharge water and paper pulp pump and filter and washing and cooling and circulation pump and gardening pump. They are widely used in mine and instructure and hospital and restaurant and waste water etc conditions. ZW series self-priming sewage pumps are with self priming and sewage discharge. It means the pumps can not only be self priming as the same as ZX series self priming pump for clean water without foot valve and pouring water but also suck and discharge the large grain and long fiber and sediment and impurity in the waste water. And the performance is very steady.  It is very convenient to operate and move and install and maintain. ①Environment temperature≤45℃，Liquids temperature≤120℃。 ②Liquid PH: Cast iron pump :6～9，Stainless steel :1～14。 ③Max grain diameter can be 60% of caliber for pump. Length of fiber can be 5 times as caliber for pump. ④Impurity weight into liquid can not more than 15% of liquid weight. Liquid density≤1240kg/cm3 more>

$210

Category: Lighting/Specialty Lighting/Explosion-Proof Lighting

Company: 新黎明防爆电器(常州)有限公司

Product Description: Product FeaturesOptical System Features: Utilizes premium imported chips with excellent luminous flux maintenance and high efficacy. Employs Surface Mount Technology (SMT) to significantly enhance thermal conductivity. Features a meticulously designed honeycomb light distribution structure to effectively improve luminaire efficiency.Driver System Features: Adopts constant current drive with short-circuit and over-voltage protection. Type EA serves as normal working lighting with emergency function; Type EB functions solely as emergency lighting and remains off during normal operation. Both Type A and B can instantly activate emergency lighting during main power failure and can also be controlled via external switches to activate at any time during power outages. Excellent electromagnetic compatibility ensures no interference with other electrical devices or power transmission networks, while the power supply itself possesses strong anti-electromagnetic interference capability. Wide voltage compatibility tolerates 20% voltage fluctuation. The driver power supply uses potting technology to protect components from corrosion. Heat Dissipation System Features: Carefully designed heat dissipation vents with air flow guidance structure ensure extended service life of LED light sources. An independent power supply chamber design isolates the power supply from LED heat, ensuring stable and long-lasting operation.Overall Luminaire Structure Features: Employs Class IIIC explosion-proof structure and IP66 protection rating, delivering superior explosion-proof and protective performance. Uses tempered high-borosilicate glass resistant to high-energy impact. All exposed fasteners and accessories are made of highly corrosion-resistant stainless steel. Integrated emergency chamber eliminates the need for additional emergency boxes, facilitating installation and maintenance. Side-opening cover design simplifies wiring and maintenance for users; multiple installation options are available.◆ Patent Highlights: Patented triple-chamber independent design and ventilated lamp body structure enable air convection, featuring minimal contact interfaces, large heat dissipation area, aesthetically pleasing appearance, and suitability for diverse applications. more>

$78

Category: Chemicals/Organosilicon/Silicone Resin

Company: 深圳市宏图硅胶科技有限公司

Product Description: Non-oily, non-sticky pad printing silicone with long service life and high printing frequencyApplications of Pad Printing Silicone:Pad printing silicone is specifically used for manufacturing pad printing pads. It is mainly applied in plastic toys, electroplated products, electronic toys, trademarks, and printing of irregular patterns. The pad printing pad acts as a carrier to transfer patterns from the steel plate onto toy products.Features of Pad Printing Silicone:1) Low viscosity, good fluidity2) Non-shrinking, easy ink application, clear printed patterns3) Fine texture, good resilience, high printing frequency4) Professional-grade pad printing silicone is used for manufacturing pad printing pads. It requires fine texture, no impurities, no particles, and excellent resilience. Made from high-quality raw materials and added with DuPont's high-temperature resistant new material, it is processed at high temperatures, offering advantages such as wear resistance, high-temperature resistance, and excellent printing results.Operation of Pad Printing Silicone:① First, clean the mold with detergent, then wipe or blow dry the moisture inside the mold, and apply a layer of release agent.② The normal ratio of pad printing silicone to silicone oil is determined based on customer requirements. If the customer requires printing large pattern areas and a soft pad is needed, increase the amount of silicone oil. Conversely, if a harder pad is required, reduce or avoid adding silicone oil. Generally, the hardness of the pad printing pad should be between 15A° and 25A°. Excessive silicone oil will make the pad too soft, limiting the number of prints. Even the best silicone quality can be compromised by excessive silicone oil, leading to reduced wear resistance, solvent resistance, and accelerated aging.③ A typical ratio is as follows: 100g of silicone mixed with 30g of silicone oil results in a pad hardness of 20A°, suitable for printing small patterns on products like alloy toy cars with small contact areas. For larger contact areas or softer pads, the ratio of silicone to silicone oil can be adjusted to 100:30, 100:50, etc. However, note that increasing silicone oil reduces hardness, print frequency, wear resistance, and solvent resistance, leading to higher costs and material waste.④ The curing agent ratio and chemical reaction of silicone are as follows: Take 100g of silicone and 50g of silicone oil, mix and stir thoroughly. After the silicone oil and silicone are fully blended, add 2%–3% of the total weight of silicone and silicone oil as curing agent, stir for another 2–3 minutes, and then proceed to vacuum degassing. The degassing time should generally not exceed 10 minutes, as prolonged degassing may cause the silicone to cure too quickly, affecting the quality of the poured silicone.Principles of Pad Printing Pad Manufacturing:a. The vulcanization system of rubber is the foundation of significant advancements in the rubber industry. Pad printing pads are made using the principle of room-temperature vulcanized silicone rubber cross-linking into a network-structured elastomer under the action of vulcanizing agents.b. Rubber consists of large molecular chain hydrocarbons. Rubber with only carbon atoms in the main chain is called carbon-chain rubber; rubber with other atoms besides carbon in the main chain is called heterochain rubber. If the main chain contains organic groups with atoms like silicon (Si), tin (Sn), or boron (B), it is termed an elemental organic polymer. Silicone rubber is an elemental organic polymer with organic silicon groups in its main chain. There are two vulcanization processes for silicone rubber: high-temperature vulcanization, corresponding to high-temperature vulcanized silicone rubber (HTV), and room-temperature vulcanization, corresponding to room-temperature vulcanized silicone rubber (RTV). RTV silicone rubber is further divided into addition-type and condensation-type.c. Condensation-type silicone rubber contains terminal hydroxyl groups (-OH), which easily condense with silanes containing hydrolyzable groups (-OCH3, -OCOCH3) for room-temperature vulcanization. The cross-linking agent is ethyl silicate, and the catalyst is dibutyltin dilaurate. Addition-type silicone rubber typically contains -CH=CH terminal groups and usually uses polysiloxane with Si-H bonds as a cross-linking agent for self-addition reactions to form an elastomer. more>