$890000

Category: Others

Company: 西安国盛激光科技有限公司

Product Description: Laser cladding technology refers to the use of high-energy-density laser beams to irradiate the molten pool, raising its temperature to a supersaturated state. This causes elements in the molten pool to form dendrites or other amorphous substances, which flow at extremely high speeds to the surface of the molten pool and clad onto the workpiece surface, forming a new metallic layer with a certain thickness and performance. Compared to traditional overlay welding and electroplating, laser cladding technology offers many unique advantages.High-power laser cladding (HWS-WFJ) is a novel process that utilizes high-power fiber lasers to prepare cladding layers on metal substrates. Its characteristic is that it is not limited by the geometric shape of the part, enabling the fabrication of surfaces for workpieces with complex shapes, large sizes, and irregular forms. It is suitable for preparing parts with large dimensions, complex shapes, and special performance requirements.Based on the heat source, laser cladding can be divided into the following two types:One is laser cladding technology using fiber lasers as the heat source, also known as "laser beam additive manufacturing." This method is primarily used for surface strengthening to meet performance requirements in practical applications such as repair and remanufacturing. It enables surface modification and remanufacturing on various metal materials, including stainless steel, copper and copper alloys, aluminum and aluminum alloys.The other is laser cladding technology using high-power semiconductor lasers as the heat source. This method is mainly used to improve the surface properties of special materials (such as ceramics and nanomaterials), such as high-temperature alloys and ceramic matrix composites.Laser cladding technology involves irradiating the workpiece surface with high-energy-density laser beams, bringing the surface to a supersaturated state. Through rapid melting, expansion, solidification, and cooling, it achieves the process of repair and remanufacturing.Based on the materials used, laser cladding is mainly divided into: metal laser cladding and composite material laser cladding.Metal Laser CladdingLaser cladding involves uniformly covering the material surface on the workpiece through laser cladding materials, heat sources, and cooling methods, achieving a functional remanufacturing process. Its essence lies in using high-power-density laser beams to clad metal onto the workpiece surface, forming a new metallic layer with a certain thickness and performance.In terms of metallurgical principles, laser cladding involves laser-induced recrystallization of elements in the molten pool, causing the molten pool to solidify with unchanged volume while undergoing internal solidification, achieving metallurgical bonding. At the same time, laser cladding largely retains the properties of the base material, ensuring the workpiece remains fundamentally unchanged. It allows the use of one material to obtain workpieces with multiple different properties. In contrast, traditional processes use different base materials or parts as raw materials, selecting appropriate materials based on workpiece requirements and achieving metallurgical bonding for surface strengthening.Composite material laser cladding refers to the use of functional materials (such as ceramics, nanomaterials, etc.) that have the same or similar properties as the workpiece material, cladding a layer of material with the same properties as the protected surface onto the workpiece surface.Based on the cladding composition, composite material laser cladding can be divided into: ceramic laser cladding and metal laser cladding.Currently, due to the differences in properties between ceramics and metal materials, metal laser cladding is generally predominant.When using semiconductor lasers for laser cladding on ceramic matrix composites, if the laser power density is too high (generally exceeding 200 kW/cm²), the thermal stress between the metal substrate and the functional layer can cause uneven melting and solidification, leading to cracks in the cladding layer. When the power density is lower (generally not exceeding 30 kW/cm²), precise cladding can be achieved. more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 孝感市宏龙麻糖米酒有限公司

Product Description: more>

Negotiable

Category: Others

Company: 孝感市宏龙麻糖米酒有限公司

Product Description: more>

$760

Category: Others

Company: 翔业（日照）环保设备有限公司

Product Description:        Xiangye Environmental Protection editor details the working principle of the pulverized coal filter. Although it is compact in size, its design is sophisticated and powerful. It is installed after the air supplement regulator of the pulverized coal main pipeline at the outlet of the injection tank and is a key device to prevent clogging in the pulverized coal conveying pipeline. Through wear-resistant filter plates, this filter separates impurities from the pulverized coal, ensuring smooth pneumatic conveying of pulverized coal.       The design principle of the pulverized coal filter produced by our company is simple yet efficient. In industrial applications, pulverized coal filters are widely used in blast furnace pulverized coal injection systems and are key equipment to ensure the continuous and stable operation of the pulverized coal injection system. In blast furnace pulverized coal injection systems, the pulverized coal filter can filter out coarse and large particles as well as impurities in the pulverized coal, preventing these impurities from entering components such as distributors, pulverized coal branch pipes, and valves on the branch pipes, which could cause clogging and damage. The use of the pulverized coal filter not only improves production efficiency but also extends the service life of the equipment and reduces maintenance costs.      Structurally, the pulverized coal filter is made of carbon steel, with an inner wear-resistant layer that enhances the durability of the equipment. The double cone bodies are butt-welded, and the entire shell interior is designed with stable airflow angles, allowing the pulverized coal to pass through more smoothly, reducing resistance and wear. The middle section consists of a wear-resistant manganese steel filter plate, which offers excellent wear resistance and filtration efficiency, effectively filtering impurities from the pulverized coal. The filter plate is designed to be removable, facilitating maintenance and replacement, significantly reducing equipment downtime and maintenance costs.      The pulverized coal filter equipment is installed after the air supplement regulator of the pulverized coal main pipeline at the outlet of the injection tank. It is used to filter coarse and large particles, as well as other woven fibers, wood chips, and debris from the pulverized coal, ensuring smooth pneumatic conveying of pulverized coal. This prevents clogging in distributors, spray guns, and valves on branch pipes, ensuring continuous and stable pulverized coal injection. Its compact structure, light weight, and reliable performance make it widely used in various dust pipelines in industries such as metallurgy and petrochemicals. more>

Negotiable

Category: Others

Company: 杭州新蓝能源工程有限公司

Product Description: Project Overview:In the domestic setting machine exhaust gas treatment process, the exhaust gas first undergoes spray washing. After washing, the moisture content of the exhaust gas significantly increases, resulting in the formation of a large amount of white plume upon discharge. Therefore, a white plume elimination retrofit is necessary to mitigate visual pollution.Working Principle:We employ a "condensation + reheating" method for white plume elimination, where the heat for reheating the end-stage flue gas is sourced from the front end. Since the exhaust gas from setting machines contains oily substances and lint that can easily clog equipment, our company has specifically designed a heat recovery product for setting machine exhaust gas, effectively addressing issues of equipment clogging and difficult treatment.System Advantages:1. Utilizes waste heat from high-temperature exhaust gas to eliminate white plume, requiring no additional energy consumption2. This white plume elimination device is based on the company's patented technology, featuring low ventilation resistance and resistance to oil and lint scaling3. The equipment features fully automatic cleaning, covering 100% of the area with no dead zones4. The equipment is made of corrosion-resistant materials with special surface treatment, preventing adhesion of oily substances5. Integrated "white plume elimination + exhaust gas purification" design, with purification efficiency exceeding 95% more>

$面议

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

Company: 新久振动机械有限公司

Product Description: Operating and Maintenance Instructions for Vibration Source Three-Phase Asynchronous MotorOverviewThe vibration source three-phase asynchronous motor integrates power source and vibration source into one unit. It is a highly efficient and energy-saving universal vibration source, featuring compact size, strong vibration force, reliable structure, and convenient operation and maintenance. Abbreviated as vibration motor, other names include: vibrating motor, vibration motor.This series of products is widely used in industries such as mining, coal, power, chemical, grain processing, metallurgy, casting, light industry, and pharmaceuticals. It is an ideal vibration source for mechanized screening, conveying, crushing, filling, and anti-clogging of bulk materials like powders, granules, and lumps.This machine can be used as a single unit or in combination with multiple units.1. Operating Conditions for Vibration MotorThis series of vibration motors can continuously output the rated vibration force under the following conditions:Vibration acceleration: not exceeding 7g (g: gravitational acceleration)Ambient temperature: not exceeding 40°CAltitude: not exceeding 1000mPower frequency: 50HzVoltage: 220V, 380V, 660VTemperature rise: less than 80K (resistance method)2. Vibration Motor Model DescriptionThe XVM series product model consists of three parts (as shown in the example below):XVM-5-4XVM---Vibration Motor5---Maximum vibration force (kilonewtons)4---Number of poles(2) The XVML series represents vertically installed vibration motors.II. Operation and Maintenance of Vibration MotorThis machine should be equipped with electrical protection devices.During the initial operation of the machine, check the anchor bolts at least once a day to prevent loosening.If the motor rotation direction does not meet the requirements, adjust the power phase sequence.The motor should be well lubricated; replenish No. 3 molybdenum disulfide lithium-based grease every 720 hours of operation, with the amount being 1/3 to 2/3 of the bearing cavity.After the motor has accumulated 2000 hours of operation, inspect the bearings. If severe damage is found, replace them immediately.When using the motor after it has been idle for a long time, measure the insulation resistance with a 500V megohmmeter. It should be greater than 0.5 megohms.III. Common Faults and Troubleshooting for Vibration MotorNo. FaultPossible CausesTreatment MethodsI. Motor does not start when power is connected1. Phase-to-phase short circuit in stator winding, open circuit in stator winding, grounding2. Incorrect stator winding connection3. Overload or rotor obstruction1. Check and repair open circuit, short circuit, and grounding points2. Check winding connection and correct3. Reduce load, remove obstructionII. Motor temperature rise too high or smoking1. Overload2. Winding short circuit3. Incorrect winding connection4. Winding grounding or inter-turn short circuit5. Broken rotor bars6. Rubbing between stator and rotor1. Reduce load or replace motor2. Repair short circuit3. Check winding connection and correct4. Locate fault and repair5. Replace rotor6. Measure motor air gap, check bearing wear, etc., and repairIII. Bearing overheating1. Bearing wear or quality issues2. Too much or too little lubricant, incorrect type or poor quality3. Loose or tight fit between bearing inner ring and end cover4. Loose or tight fit between bearing outer ring and end cover5. Poor assembly quality of end cover and bearing inner cover1. Replace bearing2. Adjust lubricant3. If too loose, weld a metal ring on the shaft and re-machine; if too tight, re-machine the bearing seat4. If too loose, enlarge the bearing housing of the end cover and sleeve it; if too tight, re-machine the bearing housingIV. Motor casing electrified1. Poor grounding2. Winding insulation damaged3. Winding damp4. Terminal block damaged or too dirty1. Find cause and restore2. Repair insulation and perform dipping and drying treatment3. Dry or dip and dry4. Replace terminal block, clean dirtV. Bracket leg fracture1. Anchor bolts not tightened2. Installation surface not flat enough1. Tighten bolts2. Re-machine installation surfaceIV. Vibration Motor Technical Parameters:V. Vibration Motor Ordering Information:Specify the required product specifications, power, vibration force, number of poles, and quantity.Any special requirements for the topcoat.Any special requirements for the motor lead wires.(4) Custom vibration motors with special parameters, such as special voltage, special installation dimensions, etc., can be ordered. more>

$153

Category: Others

Company: 保定卓恒机械制造有限公司

Product Description: The load capacity of orange lifting slings is predetermined by manufacturers during production. According to the synthetic fiber lifting sling standards, there is no specific requirement for which tonnage should be orange. Therefore, when using orange flat lifting slings, it is essential to consult the manufacturer and avoid using them without confirmation.Currently, major lifting sling manufacturers produce orange slings with load capacities of 2 tons, 10 tons, 20 tons, 25 tons, and over 30 tons. For large-tonnage slings, adjacent load capacities may use webbing of the same width, which can be indistinguishable to the naked eye. Differentiation can only be made through inspection reports provided by the industrial lifting sling manufacturers.The proper use of lifting tools begins with understanding the production information from Hebei sling manufacturers, as well as the usage methods and precautions for rigging hardware. This helps prevent losses and accidents caused by lack of knowledge. Baoding Zhuoheng Machinery Manufacturing Co., Ltd. Sales Service Hotline: 15630204055Lifting Sling Manufacturer, Lifting Sling Factory, Lifting Sling Company http://www.ylqizhong.com/news/cj/Lifting and Handling Design Company http://www.ylqizhong.com/sj/Lifting Sling Usage Methods, Precautions for Using Lifting Slings http://www.ylqizhong.com/al/Lifting Sling Specifications and Models http://www.ylqizhong.com/tj/ more>

Negotiable

Category: Construction & Building Materials/Waterproof & Moisture-Proof Materials/Waterproof & Moisture Proof Materials

Company: 宜兴市鑫凯环保填料有限公司

Product Description: The filter nozzle material is made of ABS engineering plastic, featuring high compressive strength and resistance to breakage even when stepped on or impacted. The filter nozzle structure incorporates reinforced threads and additional rubber washers, ensuring secure connections that never loosen. The base of the filter nozzle cap is designed with enhanced bottom seams, eliminating dead water zones between the filter plate and preventing sludge accumulation. It is widely used in water treatment filters, filter tanks, combined and return-flow softening water systems, and ion exchange column equipment. Filter nozzles of various specifications are suitable for matching ion exchange columns, activated carbon filters, and can also be used in the drainage systems of rapid filter tanks. Backwash Filter Nozzles... Detailed Information: Filter nozzles are air-water backwash devices in the bottom water distribution system of filter tanks. They effectively flush out sludge and impurities from the filter tank, ensuring normal operation of water quality and quantity. Types of filter nozzles include (long and short handle) mushroom type, plum blossom type, tower type, and cylindrical type, all made of ABS engineering plastic. They feature a rational structure, secure connections, high compressive strength, and non-deforming seams, ensuring no dead water corners between filter plates and no sludge accumulation. They offer excellent performance with drainage capacities of 0.25 tons/hour, 0.5 tons/hour, and 1 ton/hour. Long-handle filter nozzles are commonly used in air-water backwash distribution systems of filter tanks, while short-handle filter nozzles are used in single-water backwash systems, gravity or pressure filter tanks, and ion exchange filter beds. Filter nozzles are used for advanced purification of urban drinking water and industrial water. They are high-grade purification materials in the production of high-purity water and mineral water, effectively removing COD, pigments, odors, and toxic substances from water. Long-handle filter nozzles are applied in air-water backwash distribution systems of filter tanks, while short-handle filter nozzles are used in single-water backwash systems, gravity or pressure filter tanks, and ion exchange filter beds. Filter nozzles are suitable not only for domestic drinking water treatment but also for various industrial water applications such as beverages, printing, dyeing, and swimming pools, as well as industrial wastewater and domestic sewage treatment projects. Filter nozzles are categorized by flow rate into 0.25 tons/hour, 0.5 tons/hour, and 1 ton/hour; by handle length into long, medium, and short handles; by shape into tower, hemispherical, plum blossom, and slice types; and by interface into external thread and internal thread types. more>

$210

Category: Instruments & Meters/Water Meters/Gas Meters

Company: 北京盛世昌华科技有限公司

Product Description: 基表特点：※ 机芯装有误差曲线调整机构可对燃气表的误差曲线斜率进行调整，以提高燃气表的计量精度，减小误差分散性；※ 计数器字轮放大显示窗可以更方便清楚的读取燃气表数据；※ 始动流量小于2dm3/h；※ 测量范围宽（宽量程），由于制造精度的提高，一个规格的燃气表可满足不同规格的燃气表的计量精度。如G2.5标准要求的计量范围为（0.025～4）m3/h，而我们生产的宽流量的燃气表同一规格可满足G1.6、G2.5、G4.0规格的检测要求，即(0.016～6) m3/h流量范围内的精确计量；※ 计量精度：（qmax≤q＜0.1qmax）≤±3%（qmin≤q＜0.1qmax）≤±1.5%※ 保护外壳之间涂胶后用一条整体的不锈钢封圈滚压密封，燃气表能承受75kPa的高压密封性检测；※ 工作温度范围宽，在-20℃～55℃环境下可正常使用；※ 预留脉冲输出接口，为未来实现远程抄表提供可能。电子控制部分特点：主芯片采用低功耗的MSP430；所有电子元器件采用工业级帖片焊接技术；超低功耗，四节碱性电池，使用寿命可达18个月以上；※ 计量功能：准确计量用气量；燃气表只需简单设置即可使用，软件界面直观，开户、购气等操作简单易用；电控部分的用气计量传感器采用双传感器桥式设计，双防双计，确保采讯可靠性；在燃气表运行过程中，传感器1和2（如上图）分别产生一个脉冲，单片机交替接收到脉冲1和脉冲2信号，计算为一个脉冲当量。如在运行过程中，其中一个传感器损坏，单片机只能接收到其中某一传感器的连续二个以上脉冲，此时，单片机就会自动判断传感器故障，关闭阀门；如在运行过程中，有强磁干扰，其中一个传感器会产生持续脉冲信号，另外一个传感器运行时也会产生脉冲信号，这样，单片机就会接收到同时存在的两个脉冲信号，单片机自动判断磁干扰，关闭阀门。※ 防磁干扰功能：当检测到外界磁场干扰时，燃气表自动关闭阀门，切断供气；※ 报警功能：当传感器被干扰或阀门发生故障时，燃气表会以液晶显示及声音报警的方式进行提示；※ 故障自我诊断功能：IC卡燃气表具有在“插卡操作”、“用气运行”过程中，出现故障或误操作的自我诊断功能，当诊断到燃气表有故障时，关闭阀门并将出现的故障或误操作的问题，通过故障代码的型式显示在液晶屏上，用户根据故障代码提示重新操作。插卡操作故障自我诊断功能在插卡操作过程中，如出现错误，液晶会显示具体的错误原因（如图）。异常 1：卡内数据效验错误，说明插错卡异常 2：卡密码错误，说明插错卡异常 3：二级低压，不操作卡，请换电池异常 5：用户卡表号错误，不是此户的卡异常 6：卡片被提前拔出异常 8：换表卡预换出未开户数据异常16：燃气表已经开户异常18：单位号错误燃气表运行中故障诊断功能：故障屏如右图所示，在燃气表出现故障，会自动在此液晶屏上显示相应提示，其中每一位数字指示一类故障，0表示无任何故障。第1位（即个位）：显示1表示一级低压，2表示二级低压。第2位（即十位）：显示1表示有磁攻击关闭阀门不超过6次，显示2表示有磁攻击关闭阀门已超过6次。第3位（即百位）：显示1表示通过开关阀控制指令关闭阀门，插卡操作、按键查询都可以解除故障。第4位（即千位）：显示1表示燃气泄漏报警器报警导致燃气表关阀，查询并修复漏气点后可重复上电池或插用户卡可正常开阀。第5位（即万位）：显示1表示阀门未正常关闭或关闭不到位。第6位（即十万位）：预留第7位（即百万位）：显示1表示干簧管有一根断裂，一个有效的计数脉冲可以清除此故障。※ 预付费用气功能：实现先交费后用气的功能，解决燃气公司收费和入户抄表难的问题；※ 提示功能：根据剩余气量及电池电量，当低于设定值时，燃气表蜂鸣器会及时提示用户购气和更换电池；※ 防囤气功能：可通过售气软件系统设定购气限额，防止用户囤气，从而减少燃气公司因气价波动而带来的损失；※ 与燃气泄漏报警器联动，当有燃气泄漏，报警器报警时，燃气表自动切断内置电机阀门，防止燃气进一步泄漏，提高燃气使用安全性。 more>

$8400

Category: Chemicals/Plastics & Products/Plastic Raw Materials

Company: 广东中海南联能源有限公司

Product Description: Injection Molding Material—Random CopolymerProduct Introduction: Maoming Petrochemical's random copolymer polypropylene is a copolymer with ethylene randomly distributed in the propylene chain segments. It offers excellent transparency, gloss, heat resistance, and processing performance.Product Applications: Random copolymer polypropylene is widely used in the production of medical devices requiring high transparency, such as medical syringes, infusion bottles, medical centrifuge tubes, and sample storage tubes. It is also used for food containers, stationery, packaging materials, household storage containers, and more.Product GradeHT9020MHT9025NXMelt Flow Rateg/10min20.025.0Tensile Yield StrengthMPa, ≥2323Notched Izod Impact Strength23°C, J/m, ≥6055Flexural ModulusMPa, ≥800800Heat Deflection Temperature°C, ≥6060Haze%, ≤--18Main ApplicationsHigh-transparency injection molded productsHigh-transparency injection molded productsProduct CertificationsFood Hygiene/FDA/RoHS/Food Hygiene/FDA/RoHS/ PAHs/Phthalate/Reach more>

Negotiable

Category: Machinery & Equipment/Electric Heating Equipment/Medium Frequency Power Supplies

Company: 郑州艾迪科技有限公司

Product Description: The QZ77-104 Electric Thermostatic Drying Oven, developed by Zhengzhou Aidi Technology Co., Ltd., is a multifunctional thermostatic processing device widely suitable for material drying in industrial and mining enterprises, experimental sample processing in universities and colleges, instrument sterilization in health institutions, and experimental research in scientific research units. It can perform operations such as baking, drying, and dissolving of items, providing stable support for material processing needs across various fields.In terms of equipment structure and configuration, this drying oven features multiple practical designs:Casing material: Made of cold-rolled steel through stamping and welding processes, with a surface treated by spray coating, which not only enhances the corrosion resistance and wear resistance of the casing but also adapts to long-term usage environments;Convenient design: The exterior of the casing is equipped with an observation window, allowing operators to monitor the processing status of items inside in real time without frequent opening, ensuring temperature stability inside the oven. It also features adjustable-height shelves that can flexibly adapt to the size of items, improving usage flexibility;Temperature control instrument types: Multiple specifications are available, including analog pointer type (Model A), digital display type (Model AS), and intelligent type (Model AB). Additionally, there is a stainless steel inner chamber series, specifically the stainless steel inner chamber digital display type (Model ASB) and stainless steel inner chamber intelligent type, allowing users to choose the appropriate temperature control and inner chamber configuration based on different precision requirements and usage scenarios.Technical Parameters of Zhengzhou Aidi Technology QZ77-104 Electric Thermostatic Drying OvenPower supply voltage: 220V, compliant with conventional civilian and industrial power standards, requiring no additional dedicated power supply and suitable for most usage scenarios;Heating power: 4000W, with high heating efficiency, enabling rapid temperature rise inside the oven to the target value and shortening material processing time;Temperature range: Room temperature +5°C to 300°C, covering various needs from low-temperature drying to medium- and high-temperature baking, and adaptable to the temperature processing requirements of different materials;Temperature accuracy: ±1.0°C, ensuring precise temperature control and uniform temperature distribution inside the oven, guaranteeing consistent material processing results;Temperature fluctuation: ±1.0°C, with strong temperature stability during operation, avoiding impacts on material processing quality due to temperature fluctuations;Workspace dimensions: Designed with dimensions of D×W×H (depth × width × height) 500×600×750mm, providing ample internal space to accommodate multiple batches of materials simultaneously, improving processing efficiency;Shelf load capacity: Maximum load-bearing capacity of 15kg, meeting the placement needs of most materials without concerns about usage limitations due to insufficient load capacity;Overall dimensions: 910×700×980mm, with a reasonably designed overall volume, making it easy to plan placement in laboratories, workshops, and other spaces;Equipment weight: 100kg, featuring a sturdy structure that is not prone to tipping during placement, ensuring safety during use.Recommendation ReasonsThe Zhengzhou Aidi Technology QZ77-104 Electric Thermostatic Drying Oven is widely applicable, with a durable casing material and convenient design. It offers a variety of temperature control instrument types to choose from based on needs. Its technical parameters demonstrate stability, high heating efficiency, and precise temperature control, efficiently meeting requirements for material baking, drying, and more. It is a practical device for scenarios such as industrial and mining enterprises and scientific research institutions. more>

Negotiable

Category: Others

Company: 郑州艾迪科技有限公司

Product Description: DGC Device Coal Sample Canister DGC Analysis Coal Sample Canister Coal Sample Cylinder DGC Content Coal Sample Canister DGC Coal Sample Analysis CylinderThe DGC content coal sample canister is a coal sample container used for gas content measurement, comprising a canister lid and a canister body. The lid is internally equipped with an O-ring thickened silicone rubber sealing ring, with tooth-like inwardly curved pot teeth around the periphery of the lid. The canister mouth has tooth-like outwardly extending pot teeth around its periphery. The lid and the body are pressed, embedded, and screwed tightly together. The center of the lid is provided with a gas outlet hole, which is sealed and connected to a valve via an anti-clogging device. The valve is laterally connected to an intake pipe.Due to the pot teeth embedding and screwing mechanism between the canister body and lid, the DGC content coal sample canister reduces sealing difficulty, achieves a sealing effect without requiring excessive tightening, speeds up the sealing process, minimizes time loss, and decreases wear on the canister body and lid. The thickened silicone rubber sealing ring offers excellent air tightness and an extended service life. The gas outlet is equipped with an anti-clogging device to prevent coal dust from blocking the channel during gas content measurement. A handle is added to the side of the canister for easy portability.This new type of coal sample canister simplifies the downhole direct measurement process for gas content, saves measurement time and costs, and improves the accuracy of gas content measurement results. It is an auxiliary device for mine gas content testing, primarily functioning to contain coal samples in a sealed state for testing gas desorption volume. It is a commonly used product in mine production and geological exploration work.The main body of the product is made of 304 stainless steel, which is corrosion-resistant and rust-proof, capable of withstanding harsh underground environments;Specifications: 0-1000mL, and can also be customized according to customer needs.Zhengzhou Aidi produces and supplies coal drill cuttings desorption instruments, deep hole sampling devices, pressure measuring instruments, geological exploration desorption instruments, borehole flow meters, mine extraction and outburst prevention equipment, true density measuring instruments for coal, gas content measuring instruments, automatic initial gas emission rate measuring instruments, diffusion speed measuring instruments, DGC downhole analysis coal sample canisters, DGC analysis coal sample canisters, gas canisters, mining stainless steel coal sample cylinders,coal gas extraction pipeline gas parameter instruments, borehole coal powder circulation devices  more>

Negotiable

Category: Chemicals/Paints & Coatings/Printing Inks

Company: 郑州艾迪科技有限公司

Product Description: Mining JN-2 Capsule Borehole Sealer is used to quickly seal boreholes for measuring the initial gas emission rate and predicting the risk of coal and gas outbursts in working faces. This sealer can also be used to seal boreholes and measure the natural gas emission volume.Mining JN-2 Capsule Borehole Sealer Product User Manual:I. PurposeUsed to quickly seal boreholes for measuring the initial gas emission rate and predicting the risk of coal and gas outbursts in working faces.This sealer can also be used to seal boreholes and measure the natural gas emission volume.II. Structure of the SealerThe structure of the sealer is as shown in the diagram. The sealer consists of capsule 1, gas discharge pipe 2, inflation tube 3, and air pump 4. Each section of the gas discharge pipe is 1m long, with a total of 10 sections, allowing the sealing depth to be freely adjusted within a range of 10m.III. Measurement Method and StepsWhen the borehole reaches the required length for measuring the initial gas emission rate, immediately withdraw the drill rod and insert the sealer to a certain depth, ensuring the gas emission measurement chamber length is 0.5m (when using the short-hole initial gas emission method to predict outburst risk) or 1m (when using the drill cuttings volume and maximum initial gas emission rate to predict outburst risk).Open valve 5 and use air pump 4 to inflate capsule 1 until the sealer cannot be moved by hand. Then close valve 5. Connect a flow meter to measure the initial gas emission rate of the borehole.After measurement, open valve 5 to release the air and withdraw the sealer.Technical ParametersCapsule inflation pressure: 0.15-0.2 MPaBorehole diameter: 42-50 mmMaximum sealing depth: 10 mInflation tube diameter: 6 mmUpgrade of JN-2 Capsule Borehole SealerBased on the requirements of coal mine users, our company has developed a new-generation product with quick-connect fittings. The JN-2A Capsule Borehole Sealer not only offers improved performance but is also more convenient to use, significantly enhancing efficiency.Zhengzhou Aidi produces Mining JN-2 Capsule Borehole Sealer and supplies coal drill cuttings desorption instruments, deep-hole sampling devices, pressure gauges, geological exploration desorption instruments, borehole flow meters, mine gas extraction and outburst prevention equipment, true density meters for coal, gas content meters, automatic initial gas emission rate meters, diffusion rate meters, gas parameter meters for coal extraction pipelines, and borehole coal powder circulation devices. more>

$2500

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

Company: 河南喜客信息技术有限公司

Product Description: Intelligent Variable Frequency Electric Control System: The Safety Guardian of HoistsWith the continuous development of industrial automation, hoists, as essential material transportation equipment, play an irreplaceable role in fields such as mining and factories. To enhance the operational efficiency and safety of hoists, our company has introduced an advanced intelligent variable frequency electric control system, providing customers with comprehensive protection and services.Scientific Advancement, Reliability, and DurabilityOur intelligent variable frequency electric control system employs advanced PLC intelligent control technology, combined with touchscreen dynamic display, enabling real-time monitoring and control of the hoist's operational status. Through handle speed change and direction reversal, as well as brake handle devices, operation is simple and convenient, ensuring the accuracy and safety of lifting operations. Additionally, the system is equipped with multiple intelligent protection functions, such as monitoring and protection of parameters like lifting direction, speed, and height, as well as emergency stop and speed limit in the crawling zone, maximizing the safety of the hoist system.Comprehensive Monitoring, Timely AlertsOur system can monitor various operational parameters of the hoist in real time and promptly alert and control in the event of a malfunction. Whether it is the hydraulic braking system or the motor and transmission components, comprehensive monitoring is ensured, guaranteeing the stability and reliability of equipment operation.Quality Assurance, Service FirstOur company strictly adheres to coal mine safety regulations and relevant standards in designing and producing products, ensuring product quality and safety. At the same time, we provide supporting logistics and transportation services to ensure timely delivery of products to customers. Located in Zhengzhou, a city with convenient transportation, we welcome customers to visit and inspect our facilities. We are committed to providing you with high-quality products and services.Guangzhong Brand, the Trusted ChoiceOur products are not only reliable in quality but also technologically advanced, with strict material selection and exquisite production processes, having been tested and recognized by the market. Guangzhong brand pressure relief valves are a brand you can trust with confidence. We will continue to strive to provide customers with better products and services.The introduction of the intelligent variable frequency electric control system brings new opportunities and challenges to hoist operations. We remain committed to technological innovation and quality improvement, providing customers with safer and more reliable lifting solutions, growing together with our customers, and creating a better future. more>

Negotiable

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

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: TAPS buffer is a commonly used buffer with high solubility and stability. Its pKa value is about 8.4, allowing it to play an excellent buffering role under neutral and alkaline conditions. It can be stably stored at room temperature and has a small impact on many biomolecules, making it widely used in biochemical and molecular biology experiments. The buffering range of TAPS buffer is usually between pH 7.7-9.1, providing stable buffering performance within the pH range. Within this range, TAPS exhibits small changes in ion strength and buffering effects, making it suitable for various experimental needs. application area 1. Protein research: TAPS buffer is widely used in protein research, especially suitable for experiments conducted at high pH values. It can be used for protein dissolution, purification, and stability research, while having a small impact on the structure and function of proteins. 2. Enzyme activity research: Due to the stability of TAPS buffer under alkaline conditions, it is widely used in enzyme activity research. It can provide a stable reaction environment, helping researchers accurately measure enzyme activity and catalytic efficiency. 3. DNA/RNA experiments: TAPS buffer is also suitable for DNA and RNA related experiments, such as polymerase chain reaction (PCR), DNA/RNA electrophoresis, etc. It can provide a stable buffering environment, which helps maintain the stability and structural integrity of DNA/RNA When using TAPS buffer, the following precautions should be taken: 1. TAPS buffer generates heat during the dissolution process, so caution should be exercised to avoid overheating of the solution. 2. When adjusting the pH value, a mixture of TAPS and hydrochloric acid solution can be used for adjustment, and a pH meter can be used for precise measurement. 3. It is necessary to select the appropriate concentration of TAPS buffer according to the experimental requirements and optimize it under different experimental conditions. TAPS buffer is suitable for various experimental needs, such as protein research, enzyme activity research, and DNA/RNA experiments. When using, it is necessary to pay attention to operational precautions and select appropriate concentrations and pH values according to experimental requirements. Through reasonable application and optimization, researchers can obtain accurate and reliable experimental results. more>

Negotiable

Category: Others

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: MOPS, also known as 3-morpholine propionic acid, with CAS number 1132-61-2, is a type of biological buffer mainly used for in vitro diagnosis, cell culture medium, protein purification, and electrophoresis analysis. Due to its lack of chemical reaction with most metal ions, it is also used as an auxiliary buffer in the preparation of metal ion solvents. MOPS, also known as 3-morpholine propionic acid, with CAS number 1132-61-2, is a type of biological buffer mainly used for in vitro diagnosis, cell culture medium, protein purification, and electrophoresis analysis. Due to its lack of chemical reaction with most metal ions, it is also used as an auxiliary buffer in the preparation of metal ion solvents. The commonly used method for preparing 10 × MOPS buffer in electrophoresis buffer is as follows: (1) Dissolve 41.8 g of MOPS in approximately 700mL of DEPC treated water; (2) Adjust its pH value to 7.0 using 2 N NaOH; (3) Add 20mL of 1M NaOAC and 20mL of 0.5M EDTA (pH 8.0) treated with DEPC to the solvent; (4) Dilute to 1 L and use 0.45 μ The filter membrane of m filters out impurities, and the final extracted solvent is stored at room temperature in a dark place. Because the chemical composition of MOPS is stable, the Pka value is stable, and it has no toxicity or osmotic effect on organisms. It does not undergo chemical reactions with various chemical reagents and has no chelating ability with metal cations. As a zwitterionic buffer, it has many advantages and is widely used in various fields such as biological science and medical diagnosis. Hubei Xindesheng produces a series of biological buffering agents, such as Tris, MOPS, CAPS, Bicine, and other products. The R&D technology is leading and the quality is excellent, with a complete R&D production, quality control, and sales service system. The production capacity is sufficient and can be customized and packaged according to customer requirements. If you have a need for biological buffering agents, please feel free to call Xindesheng! more>

Negotiable

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

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: The chromogen substrate HDAOS is a highly sensitive substrate in enzyme-linked immunosorbent assay, belonging to a new type of Trinder's reagent. Its detection principle is similar to TMB in ELISA, but it has differences. For example, in the detection of total cholesterol in serum, HDAOS is commonly used as a chromogenic substrate. Total cholesterol (TC) includes free cholesterol (FC) and cholesterol ester (CE). There are over a hundred methods for measuring TC, which can be divided into five categories: chemical reagent colorimetry, enzyme analysis, fluorescence, gas and high-performance liquid chromatography. Due to the high conditions of gas phase and high-performance liquid chromatography, enzymatic determination of total cholesterol using chromogen substrates such as HDAOS is currently the most conventional application method. Its advantages are fast, accurate, specific, small sample size, no need for extraction, and easy for automated analysis and batch determination. In the detection of total cholesterol in serum, chromogen substrates such as HDAOS, HRP or POD, as well as enzyme preparations such as cholesterol esterase and cholesterol oxidase, are indispensable reagent raw materials. As an established reagent manufacturer, Desheng can provide a variety of reagent raw materials including these. more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: HDAOS (82692-88-4) is a chromogenic substrate widely used in chemical analysis and biomedical fields. It has many advantages, making it the first product of choice for researchers and laboratory experts. In recent years, HDAOS produced by Desheng has received special attention. Next, we will analyze the advantages of HDAOS produced by Desheng in detail. 1. High sensitivity of color reaction: HDAOS, as a color substrate, undergoes significant color changes when reacting with specific enzymes or other catalysts under appropriate conditions. This color reaction has high sensitivity, and researchers can determine the presence and concentration of substrates by observing color changes, thus conducting quantitative or semi quantitative analysis. 2. High selectivity: HDAOS has high selectivity and can react with specific enzymes or other catalysts without interference from other molecules. This high selectivity makes HDAOS have important applications in enzyme activity detection and enzyme inhibitor screening in the biomedical field. Researchers can use HDAOS to study key issues such as enzyme activity, enzyme substrate affinity, and drug enzyme interactions. 3. Easy to operate and analyze: HDAOS has advantages in experimental operations and data analysis. Because it does not require complex pre-processing steps, color reactions can be analyzed through common analytical methods such as absorbance, fluorescence, and chromatography, making the acquisition and interpretation of experimental data more convenient. 4. Widely applicable fields: The advantages of HDAOS have enabled it to be widely applied in multiple fields. For example, in biomedical research, HDAOS can be used to detect enzyme activity, screen enzyme inhibitors, etc. In the fields of environmental monitoring and food safety, HDAOS can be used to detect harmful substances such as heavy metal ions, pesticide residues, and food additives. In addition, HDAOS can also be applied in fields such as materials science, drug development, and clinical diagnosis. 5. High stability and long-term storage: HDAOS has good stability and can be stored for a long time without losing its color characteristics. This allows researchers to easily use HDAOS when needed, without worrying about its quality being compromised, and high stability makes HDAOS an ideal choice for multiple experiments and large-scale screening. These advantages make HDAOS an important tool in chemical analysis and biomedical research, providing experimenters with powerful experimental methods and data interpretation capabilities. But the prerequisite is to purchase reliable reagents. As an advantageous supplier of color reagents, Desheng has been researching for 18 years, with a product purity of up to 99% and high sensitivity, making it a hot selling product in the market. If you are interested, please click on the website to inquire about purchasing! more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: EDTA tripotassium is a potassium salt of ethylenediaminetetraacetic acid EDTA, which can form chelates with the vast majority of metal ions and become a universal strong chelating agent. It is used for extraction, cation exchange, rare element separation, capacity analysis of calcium, magnesium, and barium, softening of hard water, and as a masking agent, metal cleaning agent, detoxifying agent for heavy metal poisoning, fungicide, and other aspects. High purity EDTA tripotassium is commonly used as an anticoagulant in vacuum blood collection vessels for blood cell analysis. The use of ethylenediaminetetraacetic acid (EDTA) salt as an anticoagulant for blood cell analysis was established by the International Committee on Blood Standards (ICSH) in 1993 and widely used. The use of EDTA-K3 anticoagulant for blood analysis in China has not been long, and there are few reports on EDTA dependent platelet pseudoreduction. Some studies have shown that when EDTA-K3 anticoagulant is used for blood analysis, unexplained platelet counts are found to be too low. Therefore, the patient should undergo manual examination of blood slides and PLT count rechecks, or directly use instruments to perform blood cell analysis after dilution with unconjugated peripheral blood, in order to correctly understand the true level of PLT in the patient. Especially for patients with tumors, autoimmune diseases, pulmonary heart disease, pregnant women, and advanced liver diseases. In addition to being used as an anticoagulant, EDTA tripotassium can also be used in combination with biological buffering agents such as Tris and MOPS, similar to EDTA dipotassium and EDTA disodium, as a masking agent and complexing agent for some divalent metal ions. Desheng has been committed to the research of blood collection additive separation gel, heparin, and EDTA potassium salt since 2005. Among them, separation gel, EDTA dipotassium, and EDTA tripotassium products have excellent quality and stable sales both domestically and internationally, receiving praise from customers! more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: When going to the hospital for a physical examination, doctors often prescribe blood routine tests, which are closely related to our daily lives. Today, we will talk about the application principles of blood routine and EDTA potassium in clinical blood routine tests. Blood routine is a test that determines blood status and disease by monitoring changes in the number and distribution of blood cells. Multiple indicators on the blood routine test sheet are sensitive to many pathological changes in the human body. Therefore, when conducting blood routine tests, the number of white blood cells, red blood cells, platelets, and hemoglobin can be checked to detect early signs of systemic diseases. For example, diagnosing whether there is a blood disease, anemia, and the hematopoietic function of the bone marrow. Blood routine is a common blood test item. When drawing blood, in order to ensure that the blood does not coagulate, blood collection vessels containing anticoagulants are currently used. The commonly used anticoagulant is EDTA-K2, which has good anticoagulant effects and minimal impact on the morphology of blood cells. To understand the anticoagulant principle of EDTA dipotassium, it is necessary to clarify the four common steps of blood coagulation: 1. The formation of prothrombin activators. 2. Subsequently, prothrombin is transformed into an active thrombin with the participation of calcium ions and phospholipid membranes. 3. Then form fibrinogen, which is converted from soluble fibrinogen to insoluble fibrinogen under the action of thrombin. 4. After the generation of fibrin, it will adsorb thrombin and form local blood clots. This is the pathway through which blood coagulation occurs. EDTA dipotassium is a chelating agent in the form of a white crystalline powder. Due to its strong affinity for calcium ions, it can chelate with calcium ions to block the formation of prothrombin and form thrombin. This means that the second step of the blood coagulation process mentioned above is suspended, and the subsequent coagulation process cannot continue, which can play a role in blood anticoagulation. EDTA dipotassium is used in conjunction with whole blood analyzers to prepare anticoagulant tubes, anticoagulants, and vacuum anticoagulant tubes. Desheng is a well-established manufacturer of blood collection reagents. Its anticoagulant EDTA dipotassium has a unit packaging volume of 500g/bottle and a shelf life of 3 years. It has served many domestic and foreign customers, and the repurchase rate is also very high, which shows that its quality is guaranteed. more>