$12

Category: Machinery & Equipment/Packaging Related Equipment/Wrapping Machinery

Company: 烟台乐森机械设备有限公司

Product Description: Due to fluctuations in raw material prices, the pricing and models may vary. For specific quotations, please contact our sales personnel. Thank you.Mine gas sealing bags speak with numbers, meeting the needs of all scenarios from conventional to complex working conditions. From 300g to 500g gas sealing bags, there is always one that suits you!Mine Marysan sealing bags are mainly used for coal seam water injection sealing, fire prevention and extinguishing treatment sealing, mine pressure control sealing, roadway support sealing, geological exploration drilling sealing, and mine safety isolation sealing. Gas sealing bags are formed by mixing two components packaged in a bag. Don’t underestimate their role!Reaction time of mine gas sealing bags:Kneading time: Usually 10-25 seconds.Initial reaction time: 1-2 minutes.Bag expansion and rupture time: 2.5-3 minutes.Reaction completion time: 4-5 minutes.Features of gas sealing bags:The 350g Marysan sealing bag has low viscosity, allowing it to penetrate well into fine cracks.The 350g Marysan sealing bag exhibits excellent compressive performance; the solidified body has good toughness, compressing 20-30% without brittle fracture, fully adapting to the deformation of rock masses and coal seams. Once solidified, it quickly reinforces fractured substrates.How to use gas sealing bags:1.Open the bag: Place the Marysan sealing bag on a flat surface and gently pull the bag opening apart on both sides.2. Load items: Place the items to be sealed into the bag, taking care not to exceed the bag’s capacity.3. Close the bag: Hold the bag opening vertically downward and gently slide your fingertips across it. The sealing strip will automatically adhere, completely closing the bag. For fine items, use vibrating machinery to evenly distribute them inside the bag before sealing.4. Store items: Place the sealed Marysan bag in a dry, cool, and well-ventilated area, avoiding direct sunlight.One box represents trust, one bag represents responsibility! Mine sealing bags are shipped in bulk, heading in your direction, safeguarding safety with details, and conveying reassurance with quantity—this wave of security is fully maximized! more>

$12500

Category: Machinery & Equipment/Desulfurization & Dust Removal/Dust Collectors

Company: 烟台乐森机械设备有限公司

Product Description: Due to fluctuations in raw material prices, the specifications and prices may vary. For specific quotations, please contact our sales staff. Thank you.In the past, working in mines meant being surrounded by dust, which not only affected work efficiency but also posed risks to our health. Since the introduction of mining dust removal fans, everything has changed. The motor operates stably with low noise, making our working environment cleaner and more comfortable. This dust removal fan for underground excavation surfaces effectively separates dust upon arrival. Come and explore it with me!The mining wet dust removal fan (hereinafter referred to as the dust removal fan) combines both ventilation and dust removal functions. It is primarily suitable for purifying dust-laden air at concentrated dust-producing operation points in coal mines and can partially remove certain components from the gas. This ensures the working environment meets industrial hygiene standards, safeguarding miners' health and mine production.Structure and Working Principle1. It mainly consists of (1) a mining local ventilation fan, (2) a water supply spray system, (3) a base, and (4) a wet vibratory string dust collector. The fan is placed in front of the dust collector.2. Working Principle: (1) As the impeller rotates, the resulting negative pressure draws dust-laden air into the fan. When the dust-laden air passes through the spray water curtain in front of the impeller, it mixes with the water mist from the curtain before entering the fan. Driven by the fan, the dust-laden air then enters the vibratory string filter plate of the dust collector.We continuously improve our mining wet dust removal fans, appreciating and supporting each other. With small daily progress in underground dust removal fans, we gradually pave the way to success. Additionally, routine wiping and tightening are all that’s needed—hardly any maintenance required.Contact: Manager Hu Mobile: 16653525598 more>

$12500

Category: Machinery & Equipment/Fans & Ventilation Equipment/Fan Coil Units

Company: 烟台乐森机械设备有限公司

Product Description: Due to fluctuations in raw material prices, the model and price may vary. For specific quotations, please contact our sales staff. Thank you.Coal mine tunneling machines use dust removal fans for wet dust extraction in mining faces. Mine fans are a type of axial flow fan. Due to the specificity of their industry and application environment, as well as significant differences in performance parameters and dimensions compared to general axial flow fans, they are classified separately. It is also important to note that they serve dual functions!Mine wet dust removal fans possess the following performance characteristics:The principle of wet dust removal fans: compact size, lightweight, and equipped with a "vibrating string filter plate" device that incorporates multiple dust removal mechanisms. The filtration wind speed of the dust collector can be increased to 10-18 m/s, which is positively correlated with dust collection efficiency. This results in a smaller space occupied per unit of air volume processed, amounting to only 10% to 40% of similar products.Performance and Main Technical Parameters1. The dust removal fan is entirely constructed from welded steel plates.2. The motor is a fan motor with durable copper rotor motors, ensuring a long service life.Our company's after-sales service:For vibrating string dust removal fans, wet dust removal fans, dust removal fan models, dust removal fan selection, and axial flow dust removal fans, if any damage occurs within 12 months due to manufacturing defects, our company will provide free repairs. For severe damage, we will be responsible for returns. This is why you should choose us.Contact: Manager Hu Mobile: 16653525598   more>

$120000

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

Company: 潍坊志特环保科技有限公司

Product Description: more>

$8800

Category: Chemicals/Inorganic Salts/Silicates

Company: 杭州蓝天仪器有限公司

Product Description: The programmable high-temperature furnace, also known as the programmable box-type electric furnace or integrated programmable high-temperature furnace, features a silicon carbide inner chamber with excellent wear resistance. The furnace heats from all four sides—top, bottom, left, and right—ensuring good temperature uniformity. The outer shell is made of cold-rolled steel with spray coating, offering an aesthetically pleasing appearance.The SXF-4-10 programmable high-temperature furnace controller uses a fully automatic multi-band LTDE programmable instrument with adjustable heating rates. The PID + SSR system enables synchronous and coordinated control, ensuring consistency and reproducibility for any test or experiment. It includes automatic constant temperature and time control functions, along with secondary over-temperature protection for reliable and safe operation. The controller is located below the chamber and is integrated into the unit. Electrical connections between the furnace body and the temperature controller are completed before shipment, allowing for immediate use upon power connection. It is suitable for universities, research institutions, laboratories, and production enterprises for applications such as elemental analysis, material ashing, high-temperature sintering, small steel part quenching, annealing, tempering, as well as crystal, jewelry, and mirror coating processes.Detailed Specifications:I. Product Technical Parameters1.1 Temperature Range: 100 ~ 1000°C;1.2 Temperature Fluctuation: ±2°C;1.3 Display Accuracy: 1°C;1.4 Chamber Dimensions: 300*200*120 MM;1.5 Overall Dimensions: 590*500*700 MM;1.6 Heating Rate: ≤10°C/min (adjustable to any rate below 10°C per minute);1.7 Total Power: 4KW;1.8 Power Supply: 220V, 50Hz;II. Temperature Control System2.1 Temperature Measurement: K-type nickel-chromium/nickel-silicon thermocouple;2.2 Control System: LTDE fully automatic programmable instrument with PID adjustment and 1°C display accuracy;2.3 Electrical Components: Brand contactors and solid-state relays;2.4 Time Control: Programmable heating time and constant temperature time control; automatic shutdown when constant temperature time is reached;2.5 Over-Temperature Protection: Built-in secondary over-temperature protection device for dual safety;2.6 Operation Modes: Full-range adjustable constant temperature operation; program operation.III. Furnace Structure and Materials3.1 Shell Material: Outer shell made of high-quality cold-rolled steel treated with phosphate皮膜盐 and high-temperature spray coating in computer gray color;3.2 Chamber Material: Silicon carbide inner chamber with excellent wear resistance; heating from all four sides;3.3 Insulation Method: Insulation bricks and insulation wool;3.4 Temperature Measurement Port: Thermocouple enters from the upper rear of the furnace body;3.5 Terminal Blocks: Heating element terminal blocks located at the lower rear of the furnace body;3.6 Controller: Located below the furnace body with built-in control system; connected to the furnace body via compensation wires;3.7 Heating Element: High-temperature resistance wire;3.8 Total Weight: Approximately 80KG;3.9 Standard Packaging: Wooden case.IV. Included Technical Documentation and Accessories4.1 Operation Manual4.2 Product Warranty CardV. After-Sales Service5.1 Provide remote technical guidance to users;5.2 Timely supply of spare parts and accessories;5.3 Offer technical consultation and support during equipment use;5.4 Respond within 8 working hours upon receiving customer故障 notification.VI. Main ComponentsLTDE Programmable Control InstrumentSolid-State RelayIntermediate RelayThermocoupleHigh-Temperature Heating Wire more>

Negotiable

Category: Chemicals/Carboxylic Acid Derivatives/Esters

Company: 迈确尔(柳州)椅业有限公司

Product Description: Black Polyurethane Seat CushionSeat Dimensions: 410×480mm (B×D)Rotatable and Height-Adjustable SeatHeight adjustment via air pressure rod controlled by the steel ring under the seatChrome-Plated Five-Prong BaseCaster-equipped stool suitable for frequently relocated work environmentsGerman Mey work chair, sincerely recruiting agents worldwide!Contact: 0772-3591588 more>

$1500

Category: Machinery & Equipment/Packaging Related Equipment/Filling Machinery

Company: 河北乃信环保科技有限公司

Product Description: Bottom pressure-resistant rotary valve double-hole circular discharger volumetric with suction port bulk cement,Usage precautions:1、 Before using the star-type discharger, check the quantity and type of lubricating oil in the gearbox. Replace with new oil after one month of operation, and then change the oil once a year thereafter.2、 Connect the air source interface and check if it is blocked by foreign objects to ensure it is clean and unobstructed;3、 Before using the star-type discharger, ensure that the rotor rotates clockwise (viewed from the extended shaft end of the gearbox, 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; also apply suitable grease to the chain and sprocket;5、 Throughout the use of the discharger, adjust the pressure reducing valve so that the pressure at the seal is preferably 0.05MPa higher than the material pressure inside the valve body; this gas should be oil-free, dry compressed air;6、 During the entire use of the star-type discharger, the air source at the seal must always be present; it can only be turned off after confirming that the valve has stopped operating;Common faults: 1. During transportation and installation of the star-type discharger, keep it stable and avoid collisions to prevent shell breakage or deformation. 2. Before leaving the factory, the gearbox is filled with No. 0 grease, and the ash discharge valve is filled with lithium-based grease. Within 6-10 months of use, the transmission and bearing components should be replenished or replaced with grease. If the ambient temperature is high, humid, or there is excessive dust in the air, the oil change interval should be appropriately shortened. 3. During use, if there is air or ash leakage along the axial direction, tighten the material compression cover. 4. During operation, avoid overload operation caused by large material particles or strong adhesion, or equipment jamming or motor short circuits due to foreign objects left in the dust collector, which may damage the equipment. It is recommended that users promptly inspect and install overload protection devices. 5. This machine is suitable for continuous operation and allows forward and reverse rotation. 6. When assembling the output shaft and input shaft of the discharger with other parts, do not strike or hammer directly to avoid damage.Bottom pressure-resistant rotary valve double-hole circular discharger volumetric with suction port bulk cement. more>

$276000

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

Company: 南京澳思泰生物科技有限公司

Product Description: The Ultrasonic Bone Densitometer OSTEOKJ7000A is a dual-system ultrasonic bone densitometer launched by Nanjing Kejin Industrial Co., Ltd. It is equipped with a 1.25MHz ultrasonic probe, suitable for testing the general population and slightly obese individuals. The overall solution of this product includes a high-definition touchscreen all-in-one computer, a color inkjet printer, a convenient cart, and a handrest, making it easy to use.OSTEOKJ7000A supports both Windows and Android dual systems, and can be connected to PCs, touchscreen all-in-one computers, Android phones, and tablets. It offers flexible configuration and is convenient and efficient to use.Scope of Application:The OSTEOKJ7000A Ultrasonic Bone Densitometer is suitable for various medical institutions. Its 1.25 MHz ultrasonic probe is ideal for general population health check-ups and screenings.For detailed information on product performance, models, technical parameters, and registration certificates, please refer to the Kejin website. Visit the website to view the product introduction.Product parameters and appearance are subject to change without prior notice. The above advertising content is for reference only.Friendly reminder: The listed price does not represent the actual price. For specific pricing, please contact Kejin manufacturer directly for detailed inquiries! more>

Negotiable

Category: Others

Company: 南京瑞尼克科技开发有限公司

Product Description: PFA volumetric flasks are also known as imported PTFE volumetric flasks or Teflon volumetric flasks.Common specifications include 10ml, 25ml, 50ml, 100ml, 250ml, 500ml, and 1000ml.Product Characteristics1. Resistant to strong acids and alkalis;2. Low dissolution and leaching, ensuring no contamination of samples;3. High transparency for easy observation of volumetric samples;4. Strictly adheres to the one-thousandth weighing requirement with clear electronic graduation lines and calibration lines. Due to inherent defects of plastic materials, they are susceptible to environmental factors such as air and temperature. Therefore, users must perform secondary calibration before use;5. Essential in ICP-MS analysis; primarily used in laboratories for trace and ultra-trace analysis, isotope analysis, etc.;6. As there is currently no national standard for the classification of plastic volumetric flasks like PFA in China, we temporarily refer to the calibration standards for glass volumetric flasks, as detailed below:Single-mark volumetric flasksNominal total capacity (ml)25ml50ml100ml250ml500mlCapacity tolerance (ml)±0.03±0.05±0.10±0.15±0.25Grade B±0.06±0.10±0.20±0.30±0.50Graduation line width (mm)≤0.4≤0.5Through batch sampling and calibration by the Nanjing Institute of Metrology and Testing, the error values of our volumetric flasks meet the standards of glass volumetric flasks. For specific calibration values, please refer to the data issued by the Nanjing Institute of Metrology and Testing.7. Application fields: Widely used in trace analysis such as ICP-MS, ICP-OES, isotope analysis, and other experiments; analytical laboratories in various industries including environmental testing centers, new materials, new energy, polysilicon, semiconductors, etc. more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 南京瑞尼克科技开发有限公司

Product Description: 一、产品介绍PFA试剂瓶也叫特氟龙试剂瓶、取样瓶、样品瓶，它耐受强酸碱及高低温，主要用于痕量分析、同位素检测，ICP-MS/OES/AAS分析等实验。常用规格：30ml 60ml 100ml 250ml 500ml 1000ml 2000ml 3000ml4000ml等PFA试剂瓶有广口和小口之分，广口适合盛放固体样品，小口适合盛放液体样品，不易挥发。二、产品特性1、外观半透明；2、耐高底温：使用温度-200℃～+260℃；3、耐腐蚀：耐强酸、强碱、王水、氢fu酸；4、防污染：金属元素空白值低；5、瓶口和瓶盖密封性好，无需瓶塞，液体不渗漏；可长期密封存储高纯试剂及标准样品。品名规格（ml）瓶口外径（mm）瓶体直径（mm）高度（mm）PFA取样瓶（细口）3017336960184088100265011112525(GL25）5011325032(GL32)6513230032(GL32)7114150032(GL32)78167PFA取样瓶（广口）12532(GL32)5011325045(GL45)6513230045(GL45)7114150045(GL45)78167100045(GL45)96205200045(GL45)122252300046151320400046171380500046180450 more>

Negotiable

Category: Chemicals/Gases/Gas Mixtures

Company: 南京瑞尼克科技开发有限公司

Product Description: Semiconductor specialty gases are applied in every stage of wafer manufacturing;In a narrow sense, "electronic gases" specifically refer to specialty gases used in the electronic semiconductor industry, primarily employed in various processes such as chemical vapor deposition, lithography, etching, and doping during front-end wafer manufacturing;The purity and cleanliness of electronic specialty gases directly affect the quality, integration, specific technical indicators, and yield of optoelectronic and microelectronic components. They fundamentally constrain the precision and accuracy of circuits and devices, holding significant importance for the quality and performance of semiconductor integrated circuit chips.Due to the development of semiconductor integrated circuit chips towards higher performance and greater integration, technology imposes increasingly stringent requirements on the purity of electronic specialty gases, making the purification of these gases more critical and important.There are many types of electronic gases, and purification methods commonly include adsorption (at room temperature, low temperature), distillation (including batch distillation), catalysis, and other techniques.Existing analytical method: Absorption method (bubbling method)We can provide supporting products: PFA absorption bottles/PFA gas washing bottles *(Various styles and sizes can be custom processed). more>

Negotiable

Category: Others

Company: 南京瑞尼克科技开发有限公司

Product Description: The PFA impinger is a laboratory container made of perfluoroalkoxy (PFA) resin, primarily used for experimental operations such as gas sampling, liquid collection, and chemical reactions. PFA material offers excellent chemical stability, corrosion resistance, and high-temperature resistance, making it an ideal choice for handling corrosive liquids and high-temperature experiments.1. Material CharacteristicsCorrosion Resistance: PFA material can withstand strong acids (such as hydrofluoric acid and aqua regia), strong bases, and organic solvents, making it suitable for complex chemical environments.High-Temperature Resistance: PFA impingers can operate stably within a temperature range of -200°C to 260°C, making them suitable for high-temperature experiments.Low Metal Ion Content: The content of metal elements (such as lead and uranium) in PFA material is extremely low (less than 0.01 ppb), reducing contamination of samples.Transparency: PFA impingers are made of transparent material, allowing easy observation of the internal sample state.2. Main FunctionsGas Sampling: Used for collecting and analyzing gas samples, such as atmospheric pollutants and industrial exhaust gases.Liquid Collection: Suitable for collecting corrosive liquids or high-purity liquid samples.Chemical Reactions: Conducts chemical reactions in high-temperature or corrosive environments, ensuring experimental safety and accuracy.3. Application FieldsEnvironmental Monitoring: Used for the collection and analysis of environmental samples such as air and water quality.Chemical Experiments: Suitable for handling corrosive liquids like strong acids and bases.Semiconductor Industry: Used for ultra-pure liquid transfer and high-temperature corrosive liquid handling.4. AdvantagesHigh Cleanliness: PFA material has low contamination, ensuring sample purity.Strong Durability: Can withstand multiple uses and harsh experimental conditions, with a long service life.Excellent Sealing: Designed with a focus on sealing to prevent gas and liquid leakage. more>

Negotiable

Category: Machinery & Equipment/Sewage Treatment Equipment/Other Sewage Treatment Equipment

Company: 南京瑞尼克科技开发有限公司

Product Description: I. Equipment List and Description:1. PFA Reaction BottleMade of PFA, semi-transparent, resistant to strong acids and alkalis. Commonly used sizes are 500ml and 1000ml, with other specifications available. For three necks or more, it is recommended to choose a size above 500ml. Optional features include a liquid level gauge to observe the amount of liquid inside. The bottleneck and bottle body are sealed with threads, making installation and disassembly convenient and easy to clean. Custom diameters (17mm/19mm/24mm openings) can be processed according to customer requirements.2. 500ml Receiving Bottle SetupCurrently, there are two options for the receiving bottle setup: one uses a PTFE reaction bottle as the receiving device, and the other uses an FEP reagent bottle as the receiving bottle. The FEP reagent bottle requires additional connectors at the joints. FEP material is resistant to acids and alkalis and is transparent, allowing visibility of the solution inside. The PFA reaction bottle is also transparent, enabling observation of the internal state.3. PFA Condenser TubeThe PFA condenser tube is an improved version based on the structure of glass condenser tubes, with the same basic principles. Fillers, such as PTFE balls, can be added inside the condenser tube to increase the surface area for condensation reflux. It can be directly connected to a flask to form a condensation reflux setup or connected to a PTFE adapter for condensation reflux into a receiving bottle.4. PFA Constant Pressure Dropping FunnelThe PFA constant pressure dropping funnel, also known as a constant pressure separatory funnel, is a type of separatory funnel. Like other separatory funnels, it can be used for separation, extraction, and other operations. Unlike other separatory funnels, the constant pressure separatory funnel maintains internal pressure unchanged, which prevents backflow, ensures smooth flow of liquid from the funnel, and minimizes the impact of added liquid on gas pressure, making gas volume measurements more accurate.Tube connection. The experimental operation process is easy to control and reduces labor intensity. When separating large volumes of liquid, simply adjusting the three-way valve allows both liquids in the funnel to flow into the lower tube simultaneously, completing the process in one step without changing containers.5. FEP Separatory FunnelThe funnel wall has no adhesion or adsorption to solvents, allowing complete drainage with a clear interface. It has good sealing properties, preventing chemical penetration from the separatory funnel. The piston device is easy to dismantle for cleaning. High transparency allows users to observe liquid changes in the cavity during actual sample separation. The control valve, made of high-purity laboratory-grade PTFE material, allows flexible flow control. Compared to glass separatory funnels, its advantages include the ability to separate hydrofluoric acid, durability for long-term use, smooth inner walls that do not adhere to any substances, and easy cleaning.II. Connection Methods:PFA reaction bottle + PTFE condenser tube + receiving bottlePFA reaction bottle + PTFE constant pressure separatory funnel + PTFE condenser tube + receiving bottlePFA reaction bottle + FEP separatory funnel + PTFE condenser tube + receiving bottle more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 南京瑞尼克科技开发有限公司

Product Description: I. Product IntroductionPFA reagent bottles, also known as Teflon reagent bottles, sampling bottles, or sample bottles, are resistant to strong acids, alkalis, and high/low temperatures. They are primarily used in experiments such as trace analysis, isotope detection, and ICP-MS/OES/AES analysis.Common specifications: 30ml, 60ml, 100ml, 250ml, 500ml, 1000ml, 2000ml, 3000ml, 4000ml, etc.PFA reagent bottles come in wide-mouth and narrow-mouth varieties. Wide-mouth bottles are suitable for holding solid samples, while narrow-mouth bottles are ideal for liquid samples, preventing evaporation.II. Product Features1. Semi-transparent appearance;2. High and low temperature resistance: operating temperature range from -200°C to +260°C;3. Corrosion resistance: resistant to strong acids, strong alkalis, aqua regia, and hydrofluoric acid;4. Contamination prevention: low blank values for metal elements;5. Excellent sealing between the bottle mouth and cap, eliminating the need for additional stoppers and preventing liquid leakage. Suitable for long-term sealed storage of high-purity reagents and standard samples.Product NameSpecification (ml)Mouth Outer Diameter (mm)Bottle Diameter (mm)Height (mm)PFA Sampling Bottle (Narrow Mouth)3017336960184088100265011112525(GL25)5011325032(GL32)6513230032(GL32)7114150032(GL32)78167PFA Sampling Bottle (Wide Mouth)12532(GL32)5011325045(GL45)6513230045(GL45)7114150045(GL45)78167100045(GL45)96205200045(GL45)122252300046151320400046171380500046180450 more>

Negotiable

Category: Others

Company: 南京瑞尼克科技开发有限公司

Product Description: PFA pipette tips professionally customized for pipettes1. Disposable use of ordinary tips requires frequent replacement, which is time-consuming and costly.2. PFA tips have low blank values for metal elements (lead and uranium content less than 0.01 ppb), making them suitable for ICP-MS analysis, trace analysis, and other experiments.3. PFA tips do not require frequent replacement. Their superior and stable performance allows for long-term, multiple, and repeated use, thereby reducing replacement frequency and effectively saving costs.4. PFA tips can be customized in various sizes and specifications to fit different models of pipettes.5. Customized PFA tips from professional manufacturers feature fine craftsmanship, no burrs, smooth surfaces, and easy cleaning.Features1. Resistant to high and low temperatures: usable temperature range from -200°C to 260°C;2. Transparent and colorless appearance3. Exceptional chemical resistance, such as to aqua regia, hydrofluoric acid, nitric acid, hydrochloric acid solvents, etc.;4. Meets the needs of various analytical laboratories for small-volume sample transfer and pipetting;5. Teflon pipettes can solve the problem of ordinary plastic burettes being corroded during experiments, which affects experimental data. They are available in graduated and non-graduated versions;6. Can be custom-marked with graduations using special marking machines according to customer requirements, but these graduations are for reference only and cannot serve as strict quantitative standards;8. Mainly used extensively in laboratories for trace analysis such as ICP-MS, ICP-OES, as well as isotope analysis. Suitable for small-volume pipetting in institutions such as geology, electronic chemicals, semiconductor analysis and testing, disease control centers, pharmaceutical factories, and environmental testing centers. more>

$6522

Category: Hardware & Tools/Castings/Iron Castings

Company: 泊头市启力机床制造有限公司

Product Description: Cast Iron Motor Test Base Plate - High-Performance Test Bench Base Selection Guide (Including Load-Bearing Accuracy Parameters)Cast iron motor test base plates are the "foundational cornerstone" of motor performance testing. The rationality of selection directly impacts testing accuracy and equipment lifespan—using a low-accuracy base plate to test motors may result in torque errors exceeding 3%; using a light-load base plate to support heavy equipment can easily cause deformation and cracking. Currently, the main materials for cast iron base plates are gray cast iron (HT250/HT300) and ductile cast iron (QT500/QT600). Selection must consider motor type, testing requirements, and environmental conditions. This article provides a practical selection guide from four core dimensions to help avoid common selection pitfalls.I. Based on Testing Accuracy Requirements: Matching Accuracy Levels1. Grade 1 Accuracy Base Plate (Flatness ≤0.04mm/m) Suitable Applications: Rough testing of general industrial motors (e.g., insulation resistance and noise testing for asynchronous motors below 5kW), teaching experiments, and basic performance verification after maintenance.Advantages: Low cost (approximately ¥12,000-20,000 per unit), no need for frequent calibration, and simple maintenance.Selection Key Points: Surface roughness Ra ≤3.2μm, T-slot spacing error ±0.1mm, suitable for scenarios with low accuracy requirements, such as preliminary diagnosis of motor faults in workshops.2. Grade 0 Accuracy Base Plate (Flatness ≤0.02mm/m)Suitable Applications: Testing of small and medium-sized motors (e.g., auxiliary motors for new energy vehicles, servo motors), quality inspection of mass-produced motors (efficiency, temperature rise testing).Advantages: Balanced accuracy and cost, annual accuracy attenuation ≤0.005mm, meeting 80% of industrial testing needs.Selection Key Points: Requires double artificial aging treatment (550°C + 450°C), residual stress ≤80MPa; T-slot parallelism error ≤0.03mm/m, ensuring motor and dynamometer coaxiality ≤0.01mm. For example, when testing a 20kW servo motor, torque error can be controlled within 0.5%.3. Grade 00 Accuracy Base Plate (Flatness ≤0.01mm/m)Suitable Applications: Motor R&D (e.g., 800V new energy drive motors), scientific research experiments (motor loss, electromagnetic compatibility testing).Advantages: Ultra-precise benchmark, calibrated with laser interferometers, data repeatability error ≤0.3%.Selection Key Points: Requires natural aging for over 6 months, material selection of HT300 + 0.5% alloy elements (to enhance stability); surface grinding accuracy Ra ≤0.8μm, T-slot width error ±0.05mm, suitable for high-precision sensor installation.II. Based on Motor Load and Size: Determining Load-Bearing Capacity1. Light-Load Base Plate (Load Capacity ≤5t)Suitable Motors: Micro motors (e.g., household appliance motors), small and medium-sized motors (weight ≤800kg, power ≤20kW).Material Selection: HT250 gray cast iron (tensile strength ≥250MPa, hardness HB180-220).Structural Requirements: Main body thickness 150-200mm, rib spacing 300-400mm, T-slot width 18-22mm (compatible with M12-M16 bolts). For example, a 1000×1500mm specification can meet batch testing requirements for washing machine motors.2. Medium-Load Base Plate (Load Capacity 5-20t)Suitable Motors: Industrial medium-sized motors (e.g., 30-100kW water pump motors, machine tool spindle motors), durability testing for small and medium-sized motors (72-hour full-load operation).Material Selection: HT300 gray cast iron (high rigidity) or QT500-7 ductile cast iron (good vibration resistance).Structural Requirements: Main body thickness 250-300mm, ribs arranged in a "cross pattern" with dense spacing (250mm spacing), T-slot width 24-30mm (compatible with M20-M24 bolts); slot bottom thickness ≥15mm to prevent deformation during bolt tightening. For example, when testing a 50kW mining motor, the deflection under a 15t load is ≤0.02mm.Selecting a cast iron motor test base plate requires "matching according to needs." For light-load, low-accuracy scenarios, choose HT250 Grade 1 base plates; for medium-load scenarios, use HT300 Grade 0 base plates; for heavy-load and complex environments, prioritize QT600 Grade 0/00 base plates. During selection, always request material reports and accuracy test reports to ensure parameters are authentic and traceable. Choosing the right base plate not only ensures reliable test data but also extends equipment lifespan by over 30%, providing a stable benchmark for motor testing.Qili Machinery Ms. Xie 13785751790 more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 庆云县鹏腾塑料制品有限公司

Product Description: Large Blue 200-Liter Plastic Drum 20kg with Iron Hoop, Qingyun Pengteng supplies pure raw material packaging drums, chemical plastic drums resistant to strong acids and alkalis, full water drop test indicator from 2 meters height, sealed drums, flange drums, iron hoop drums, clamp hoop drums, food-grade open-top round drums with ultra-sealing more>

Negotiable

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

Company: 苏州赛力威仪器设备有限公司

Product Description: YSI DO200A型溶解氧测量仪轻巧便携技术参数：温度：测量原理热敏电阻法（10kΩ@25℃）；测量范围-6℃至+46℃；分辨率0.1℃；准确度±0.3℃±1蕞小有效位数溶解氧（%空气饱和度）：测量原理 稳态极谱法（PE盖膜）； 测量范围 0至200%；分辨率 0.1%空气饱和度； 准确度 读数之±2%或±2%空气饱和度，以较大者为准溶解氧（毫克/升）：测量原理 稳态极谱法（PE盖膜）； 测量范围 0至20ppm（毫克/升）； 分辨率 0.01ppm（毫克/升）； 准确度 读数之±2%或±0.2毫克/升，以较大者为准主要特点：仪器外壳防水性好，采用IP65防水等级设计不锈钢探头、外加塑料保护套，坚固耐用，更易于沉入水中电缆接口加装应力舒缓器，减少接线处物料疲劳，有效延长电缆寿命备有4米和10米电缆可供选择使用新一代快速反应/低搅拌依赖性PE盖膜自动温度补偿，手动盐度补偿和手动大气压补偿低电量显示苏州赛力威 实力供应美国YSI维赛进口仪器设备 为您提供准确报价 欢迎来电详询 more>

Negotiable

Category: Instruments & Meters/Other Instruments/Calibrators

Company: 苏州赛力威仪器设备有限公司

Product Description: Pro20i Visay YSI Dissolved Oxygen Meter Fast Response Time One-Button CalibrationProduct Features:Users can replace the dissolved oxygen probe themselves;Fast response time: With a standard membrane, 95% of the final value can be reached in 8 seconds;Press the "One-Button Calibration" button to achieve one-button dissolved oxygen calibration within 3 seconds, with automatic atmospheric pressure compensation;IP67 waterproof rating, battery compartment and instrument circuit compartment are independently separated and sealed, ensuring that even if the battery compartment gets wet, it will not affect or damage the instrument circuit;MS standard connector, quick plug-and-play, waterproof, reliable and stable connection;The cable connector can withstand 300,000 bends, ensuring long-lasting durability;Stainless steel probe protective sleeve, sturdy and impact-resistant, making it easier to sink into water; luminous keyboard and backlit display for easy operation in dim environments;Luminous keyboard and backlit display for easy operation in dim environments;Long lifespan, low consumable usage, and low average operating cost;Can store 50 sets of data, eliminating the need for manual data recording; various weighted cables of different lengths are available, and a cable management kit makes it easier to use longer cables;Main Unit,4-Meter Cable, and Sensor SpecificationsParameterMeasurement RangeResolutionAccuracyDissolved Oxygen% Air Saturation0 to 500%0.1% or 1%(Optional)0 to 200%: ±2% of reading or 2% air saturation, whichever is greater;200 to 500%: ±6% of readingDissolved Oxygenmg/L0 to 50 mg/L0.01 or 0.1 mg/L(Optional)0 to 20 mg/L: ±2% of reading or 0.2 mg/L, whichever is greater;20 to 50 mg/L: ±6% of readingTemperature-5 to 55°C0.1°C±0.3°CAtmospheric Pressure53 to 133 kPa0.01 kPa±0.4 kPa (within ±15°C of the calibration point temperature change)Suzhou Sailiwei represents products such as water quality analyzers, online water quality instruments and meters—online TOC (Total Organic Carbon) analyzers, COD detectors/monitors, multi-parameter water quality analyzers, electrochemical analyzers, portable water quality analyzers, rapid ion analyzers, turbidity meters, colorimeters, oil content meters, heavy metal analyzers, soil testing instruments, VOC analyzers, gas analyzers, ultrapure water systems, water quality particle counters, air particle counters, reagents, and other laboratory analytical reagents/consumables. Welcome to inquire for details. more>

Negotiable

Category: Instruments & Meters/Other Instruments/Calibrators

Company: 苏州赛力威仪器设备有限公司

Product Description: Lovibond PFXi195/2 Microcomputer Fully Automatic Colorimeter with Automatic Calibration on StartupTechnical Parameters:Built-in Color StandardsPt-Co/Hazen/APHA Platinum-Cobalt (0 to 500 PCU), Saybolt (-16 to +30)ASTM (0.5 to 8), CIE Values, Spectral DataApplication FieldsApplied in Petroleum & Industrial Oil IndustriesOptical System5V, 10W Halogen Tungsten Light Source, 9 Interference FiltersSpectral Indicators420 to 710 nm, Spectral Bandwidth: 10 nmRepeatabilityChromaticity (x,y) ±0.0004; ΔE 0.04Measurement IndicatorsOne-Key Automatic Calibration, CIE Illuminants: A, B, C, D65; Viewing Angle: 2°, 10°; Measurement Time: Less than 20 SecondsOptical PathSelectable within 0.1 to 50 mm RangeData ManagementStores 100,000 Measurement Data; USB; LAN Transmission InterfaceScreen Display240 x 128, Backlit Large Screen DisplayKeypad Area23 Membrane Keys, Wash-Resistant Polyester Material, with Keypress ToneMenu LanguagesEnglish, Chinese, French, German, Italian, Portuguese, Russian, Spanish, JapaneseInput Voltage90 – 240 VAC Power AdapterHousing MaterialSteel Housing with Textured Paint CoatingDimensions and WeightMain Unit Dimensions: 435x195x170mm, Main Unit Weight: 6.8 kgSailiwei Agency in Suzhou offers products including water quality analyzers, online water quality instruments - online TOC (Total Organic Carbon) analyzers, COD detectors/monitors, multi-parameter water quality analyzers, electrochemical analyzers, portable water quality analyzers, rapid ion analyzers, turbidimeters, colorimeters, oil content analyzers, heavy metal analyzers, soil detectors, VOC analyzers, gas analyzers, ultrapure water systems, water particle counters, air particle counters, reagents, and other laboratory analytical reagents/consumables. Welcome to inquire for details. more>