$15000

Category: Others

Company: 杭州凯瑞机电工程有限公司

Product Description: SouthProduct Detailed IntroductionDebugging process: Gateway debugging should be performed after the chiller unit debugging is completed. 1. CCN settings. Communication parameters: 9600 baud rate, alarm broadcasting disabled, master-slave function disabled, all of which are the operator's factory default settings and do not need to be modified. Set the CCN address (i.e., the combination of element address and bus number) for each device. Please note that element address 239, bus 0 is occupied by the gateway; do not set it to this address. For steps on setting the CCN address, refer to the device manual. If the debugging personnel changed the operation password, apply to Carrier Corporation. This is the owner's legal right. 2. Gateway status indicator: After power-on, the power light remains on, which can be used to determine if the power supply is working properly. The status light turns on when powered and turns off when the program starts running. If devices have been mapped within the gateway, the status light will blink every two seconds. 3. RS485 status indicator: The transmit indicator blinks when any data is sent. The receive indicator blinks only when a valid data packet is received. Note: For the CCN interface, a valid data packet indicates a valid response has been received; for the Modbus RTU/ASC interface, it refers to receiving valid data packets sent to the local machine or broadcast; for BACnet, it refers to receiving valid network data packets (excluding token packets) sent locally or broadcast. If the gateway has no mapped devices, it will automatically initialize and configure the device every 30 seconds after power-on, assigning it element address 1 and bus number 0. If initialization is successful, the status light will start blinking. 5. Gateway reset. If you forget the gateway's IP address, web username, and password and cannot log in, press and hold the reset button for more than 3 seconds, then release. The gateway will automatically restart, the IP address will revert to 192.168.100.1, and DHCP will be enabled. more>

$120

Category: Electronic Components & Supplies/Sensors/Displacement Sensors

Company: Shenzhen Zhishun Measurement and Control Technology Co., Ltd

Product Description: [Shenzhen Zhishun Measurement and Control Technology Co., Ltd.] is a first-tier domestic distributor, primarily representing: ZEMIC Zhonghang Electrical Measurement sensors, Chuanli sensors, MKcells Keli sensors, U.S. Keli sensors, KELI sensors, KELI load cells, Guangce sensors, CELTRON U.S. Shiquan sensors, Germany HBM load cells, Yaohua display instruments, Shanghai Yaohua weighing indicators, Zhuhai Zhimei sensors, Kaishi sensors, Kaishi load cells, and other domestic and international brands. The company offers comprehensive services, providing one-on-one pre-sales, in-sales, and after-sales tracking and support, assisting customers in quickly achieving their requirements at work. Products are delivered quickly with original factory packaging. How about the quality? What is the price? Please call our company for detailed product information and technical services.Keli ILF-500kg Box-Type Single-Point Load Cell Product Overview:◆ Shear stress measurement method, capable of withstanding tension and pressure. Excellent output symmetry, compact structure, easy installation, high precision, and good stability. Suitable for batching scales, packaging scales, dynamic detection systems, platform scales, and other weighing instruments.Keli ILF-500kg Box-Type Single-Point Load Cell Product Features:◆ Applicable Platforms: Suitable for platform scales, batching scales, packaging scales, dynamic detection systems, platform scales, and other weighing instruments.◆ Rated Load: 50kg, 75kg, 100kg, 120kg, 200kg, 300kg, 500kg, 1000kg.◆ Comprehensive Error: ±0.03% F.S.◆ Capable of meeting measurement requirements within the range of 0.05kg to 1000kg.◆ Alloy steel material, parallel beam structure.◆ Silicone rubber sealing, surface anodized, excellent corrosion resistance.◆ Integrated structure, easy to install and use. Single-point load cells are a type of digital single-point load cell with the following advantages:1. High Accuracy: Single-point load cells can achieve high-precision weighing data, with an error range typically between 0.05% and 0.2%.2. Good Linearity: Single-point load cells exhibit excellent linear characteristics, with a linear relationship between output and input signals, ensuring higher measurement accuracy.3. Fast Response: Single-point load cells feature high sensitivity and rapid response, quickly measuring changes in the mass of the object, meeting real-time control requirements.4. Easy Installation: The compact structure of single-point load cells allows for easy installation without occupying much space, making them suitable for applications in confined areas.5. Good Stability: Single-point load cells offer excellent stability, accurately measuring mass under varying temperatures, humidity, and electromagnetic interference conditions, and are less affected by mechanical vibrations and external forces.6. Strong Adaptability: Single-point load cells are suitable for various industrial automation applications, such as weighing instruments, assembly lines, robots, machine tools, automated painting, and PDAs.In summary, single-point load cells, with their high accuracy, good stability, fast response, and ease of installation and maintenance, are widely used in various industrial automation fields. Keli ILF-500kg Single-Point Load Cell Box-Type Structure Other Models:1. IL Load Cell: IL-50kg, IL-100kg, IL-150kg, IL-200kg, IL-250kg, IL-300kg, IL-500kg, IL-750kg, IL-1000kg, IL-1500kg, IL-2000kg.2. ILC Load Cell: ILC-50kg, ILC-75kg, ILC-100kg, ILC-120kg, ILC-150kg, ILC-200kg, ILC-250kg, ILC-300kg, ILC-500kg, ILC-750kg.3. ILE Load Cell: ILE-45kg, ILE-100kg, ILE-200kg, ILE-300kg, ILE-500kg, ILE-800kg.4. ILG Load Cell: ILG-50kg, ILG-100kg, ILG-A-200kg, ILG-250kg, ILG-500kg, ILG-A-750kg, ILG-A-1000kg, ILG-A-2000kg.5. ILCB Load Cell: ILCB-200kg, ILCB-300kg, ILCB-500kg, ILCB-750kg, ILCB-1000kg, ILCB-1500kg.6. ILEB Load Cell: ILEB-50kg, ILEB-100kg, ILEB-150kg, ILEB-200kg, ILEB-250kg, ILEB-300kg, ILEB-500kg, ILEB-800kg, ILEB-1000kg.7. ILEC Load Cell: ILEC-250kg, ILEC-300kg, ILEC-500kg, ILEC-750kg, ILEC-800kg, ILEC-1000kg. ILEC-250kg, ILEC-300kg, ILEC-500kg, ILEC-750kg, ILEC-800kg, ILEC-1000kg.8. ILKB Load Cell: ILKB-60kg, ILKB-100kg, ILKB-150kg, ILKB-200kg.9. ILGB Load Cell: ILGB-50kg, ILGB-100kg, ILGB-200kg, ILGB-250kg, ILGB-500kg, ILGB-750kg, ILGB-1000kg, ILGB-2000kg. ILGB-A-50kg, ILGB-A-100kg, ILGB-A-200kg, ILGB-A-250kg, ILGB-A-500kg, ILGB-A-750kg, ILGB-A-1000kg, ILGB-A-2000kg.10. ILEG Load Cell: ILEG-30kg, ILEG-60kg, ILEG-100kg, ILEG-150kg, ILEG-200kg, ILEG-300kg, ILGB-50kg, ILGB-100kg, ILGB-200kg, ILGB-250kg, ILGB-500kg, ILGB-750kg, ILGB-1000kg, ILGB-A-2000kg. more>

$22

Category: Chemicals/Amines/Cyclohexylamine

Company: 惠州市卓辉电子有限公司

Product Description: 恒温宠物烘干箱，表面不带电PTC发热器：是在铝壳发热体基础上，加上铝散热片组装而成的，产品具有安全可靠、功率稳定、噪音小、寿命长、机械强度好等优点.卓辉公司可以根据用户对发热功率，输入电压，外型尺寸，线束的不同要求设计，还可以根据用户的需要加装不同参数的温控器和熔断器配套生产;PTC绝缘加热器是一种大功率的需吹风且散热件不带电类发热器件。绝缘PTC发热体：是以PTC热敏电阻为发热源,以铝合金制成的波纹片为散热器，经粘、焊组成的发热器. 本公司生产表面带电系列PTC发热器和绝缘型PTC加热管二种供大家选择.卓辉绝缘PTC加热体可设计额定电压12-240V，功率100-6000W，尺寸依据客户要求设计，产品电器强度1800V，功率允许偏差+5-10%之间，满足不同产品设计技术所需，深受到客户的普遍欢迎。主要应用:：电动汽车、汽车空调、移动空调、家用空调、中央空调、消毒柜、器件消毒类、风帘机、风幕机、暖风机、取暖器、集成吊顶电暖器、壁炉、干衣机、干燥机、干手器、浴霸、鞋柜、等需要提供暖风的设备上由于产品型号众多，客户可先来电咨询，确定图纸及样品具体要求，本司即可依据客户要求进行做样，不同的产品做样时间不同，常规品一般8天内，非常规品需要与客户沟通具体模样及时间，样品完成后，本司将提供规格书及产品价格，欢迎新老客户来电咨询！ more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Nanjing Guogao Electric Automation Co., Ltd.

Product Description: Product OverviewThe Disaster Prevention Safety System for Passenger Dedicated Lines (Disaster Prevention Power Supply Box for Passenger Dedicated Lines, Dual Power Supply Box for High-Speed Rail Disaster Prevention) is one of the essential infrastructures ensuring the safe operation of high-speed railways. It provides data and basis for train operation management, primarily including monitoring systems for wind direction, rainfall, snow depth, earthquakes, and foreign object intrusions. The reliability of the system's power supply is fundamental to its stability, and dual power supply automatic switching is a widely accepted solution for system power within the industry.Nanjing Guogao Electric has been dedicated to switching technology for over a decade. The FZJF-1 Dual Power Distribution Box for Passenger Dedicated Line Disaster Prevention Equipment (featuring auto-switch and auto-recovery, auto-switch without recovery, mutual switching, and manual disaster prevention modes) is designed to meet the power distribution requirements of disaster prevention systems. Based on nearly a thousand railway disaster prevention control devices and incorporating internationally renowned circuit breakers, this new-generation power distribution system is standardized for wall-mounted or embedded installation (concealed mounting). It offers high reliability, intelligence, ease of operation, and compact size.The FZJF-1 Dual Power Distribution Box is suitable for low-voltage power distribution disaster prevention systems without auxiliary power sources (UPS/D.C. panels) on-site. It is used at the front end of UPS systems for disaster prevention equipment and supports modes such as auto-switch and auto-recovery, auto-switch without recovery, mutual switching, and manual debugging. It ensures rapid and reliable switching between qualified dual power sources to guarantee power supply reliability. The FZJF-1 primarily consists of a DCM631MS controller (specialized auto-switch and auto-recovery module for passenger dedicated lines), imported brand circuit breakers, built-in fused surge protectors, and system backup power supplies.This product has been certified by: National Railway Product Quality Supervision and Inspection Center / China Railway Inspection and Certification Center Co., Ltd.Test Report No.: (2019) GTJ (JCW) W5963Design principles of railway-specific disaster prevention power distribution boxes, technical solutions for high-speed rail disaster prevention power boxes, and manufacturers of passenger dedicated line disaster prevention power distribution boxes.Main Product Features☆ Multiple working modes, programmable on-site.☆ Controller operates with wide voltage range and high redundancy.☆ Dual display: primary diagram panel and LCD screen.☆ Manual test mode for easy debugging and maintenance.☆ Communication compatible with most passenger dedicated line safety monitoring systems.☆ Independent energy statistics for dual power sources.Main Product FunctionsAuto-Switch and Auto-Recovery Process:☆ Under normal power supply conditions, Power Source 1 supplies UPS-I load for disaster prevention equipment, Power Source 2 supplies UPS-II load, and the bus-tie circuit breaker is in the open state. The system enters a hot standby state with charging completed.☆ If Power Source 1 fails, the control module trips the circuit breaker of Power Source 1. After confirming the trip, it closes the bus-tie circuit breaker to complete the auto-switch action. When Power Source 1 is restored, the control module trips the bus-tie circuit breaker. After confirming the trip, it closes the incoming circuit breaker of Power Source 1. After confirming the closure, the auto-recovery action is completed.☆ If Power Source 2 fails, the control module trips the circuit breaker of Power Source 2. After confirming the trip, it closes the bus-tie circuit breaker to complete the auto-switch action. When Power Source 2 is restored, the control module trips the bus-tie circuit breaker. After confirming the trip, it closes the incoming circuit breaker of Power Source 2. After confirming the closure, the auto-recovery action is completed.Auto-Switch Without Recovery Process:☆ Under normal power supply conditions, Power Source 1 supplies UPS-I load for disaster prevention equipment, Power Source 2 supplies UPS-II load, and the bus-tie circuit breaker is in the open state. The system enters a hot standby state with charging completed.☆ If Power Source 1 fails, the control module trips the circuit breaker of Power Source 1. After confirming the trip, it closes the bus-tie circuit breaker to complete the auto-switch action. When Power Source 1 is restored, the control module takes no further action.☆ If Power Source 2 fails, the control module trips the circuit breaker of Power Source 2. After confirming the trip, it closes the bus-tie circuit breaker to complete the auto-switch action. When Power Source 2 is restored, the control module takes no further action.Mutual Switching Process:☆ Under normal power supply conditions, Power Source 1 supplies UPS-I load for disaster prevention equipment, Power Source 2 supplies UPS-II load, and the bus-tie circuit breaker is in the open state. The system enters a hot standby state with charging completed.☆ If Power Source 1 fails, the control module trips the circuit breaker of Power Source 1. After confirming the trip, it closes the bus-tie circuit breaker to complete the auto-switch action. When Power Source 1 is restored, the control module does not perform auto-recovery. However, if Power Source 2 fails, the controller trips the circuit breaker of Power Source 2 and closes the circuit breaker of Power Source 1 to complete the mutual switching action.☆ If Power Source 2 fails, the control module trips the circuit breaker of Power Source 2. After confirming the trip, it closes the bus-tie circuit breaker to complete the auto-switch action. When Power Source 2 is restored, the control module does not perform auto-recovery. However, if Power Source 1 fails, the controller trips the circuit breaker of Power Source 1 and closes the circuit breaker of Power Source 2 to complete the mutual switching action.Manual Mode (Debugging and Maintenance) Process:☆ When the panel selector switch is set to manual mode, the system enters manual debugging state.☆ Directly open or close circuit breakers using the buttons on the panel, and observe the status through indicator lights.Product Appearance and Dimensions more>

$7800

Category: Machinery & Equipment/Pipes & Fittings/Other Pipe Materials

Company: Zouping Yuanzhuo Marine Parts Co., Ltd.

Product Description: Lost Foam Casting Aluminum Suction Pipe for Electrolytic Aluminum AluminaThe aluminum suction pipe is a vulnerable spare part on various types of lifting bags (including open lifting bags and vacuum lifting bags) in electrolytic aluminum plants. During operation, the aluminum suction pipe is inserted into the aluminum liquid in the electrolytic aluminum cell. Using the siphon principle, the molten aluminum is drawn into the lifting bag.The combination of low cost and the excellent performance of corrosion-resistant and heat-resistant materials effectively extends the service life of the aluminum suction pipe. At the same time, its simple manufacturing process and low material cost make it highly cost-effective.Features: Good surface quality, few defects, long service lifeMaterial: Heat-resistant cast ironSpecifications: 3T, 5T, 6T, 7.5T, 10T  12T  15TApplication: Suitable for 3T, 5T, 6T, 7.5T   10T   12T  15T  vacuum bags in electrolytic aluminum plants or custom processing according to drawingsAluminum suction pipe & Heat resistant aluminum suction pipe & aluminum suction tube for electrolytic aluminum and alumina Aluminum suction tube is a vulnerable spare part on various types of lifting bags (including open lifting bags and vacuum lifting bags) in electrolytic aluminum plants.Aluminum suction pipe is inserted into the aluminum liquid in the electrolytic aluminum cell. Using the siphon principle, the aluminum water is sucked into the lifting bag. Low price and excellent performance of corrosion-resistant and heat-resistant materials can effectively prolong the service life of the aluminum suction pipe.At the same time, the aluminum suction pipe has the advantages of simple manufacturing process and low material cost, making it highly cost-effective.Good surface quality, few defects, and long service lifeMaterial: QT500   It is applicable to 3T, 5T, 6T, 7.5T, 10T, 12T, and 15T vacuum bags in electrolytic aluminum plants more>

$7800

Category: Machinery & Equipment/Pipes & Fittings/Other Pipe Materials

Company: Zouping Yuanzhuo Marine Parts Co., Ltd.

Product Description: Lost Foam Casting Aluminum Suction Tube for Electrolytic Aluminum AluminaThe aluminum suction tube is a vulnerable spare part on various types of ladles (including open-top ladles and vacuum ladles) in electrolytic aluminum plants. During operation, the aluminum suction tube is inserted into the molten aluminum of the electrolytic aluminum cell. Using the siphon principle, the molten aluminum is drawn into the ladle.The combination of the low cost of the ladle aluminum suction tube and the excellent properties of corrosion-resistant and heat-resistant materials effectively extends the service life of the aluminum suction tube. Additionally, its simple manufacturing process and low material cost make this aluminum suction tube highly cost-effective.Characteristics: Good surface quality, few defects, long service lifeMaterial: Heat-resistant cast ironEmpty package or processed according to drawings more>

$173

Category: Instruments & Meters/Electronic Measuring Instruments/Oscilloscopes

Company: Shenyang Guangcheng Technology Co., Ltd.

Product Description: 1. Functional Overview GCAN-401 CAN-Bus data recorder is specially used for offline record CAN-Bus data. This adapter has integrated one CAN-bus interface and one TF card port. Users can use TF card record bus data real-time. GCAN-401 adapter is suitable for historical data playback, error message analysis. That can be widely used in automobile, rail vehicle, industry control and others large amount of data and not easy to troubleshoot fault system. 2. Properties at a Glance 1) High speed 32-bit industrial-grade processor; 2) Use an external power supply (DC +9~30V，100mA)； 3) EMC ：contact ±2KV，air ±15KV； 4) EFT：±1KV； 5) SURGE：±1KV； 6) CAN-Bus connection via OPEH3, PHOENIX; 7) Compliant with CAN specifications 2.0A (11-Bit ID) and 2.0B (29-Bit ID); 8) CAN-Bus baud rate 10Kbps~1Mbps, set by code switch； 9) Galvanic isolation on the CAN connection up to 1500 V; 10) The highest receiving data traffic：14000 fps/s； 11) CAN data time stamp resolution 100μs； 12) Extended operating temperature range from -40 to 85 °C; 13) Dimensions: (L) 102 mm * (W) 63mm * (H)23mm。 3. Typical application 1) High-speed rail control cabinet communication record 2) Metro electrical cabinet communication record 3) Auto mobile data recording playback 4) CAN-Bus black box 5) Occasional error logging analysis more>

Negotiable

Category: Others

Company: Yun Fai Jewelry Boxes Manufactory

Product Description: Dongguan Mayor An Sha Tou Xu Hui decorative box products factory was established in 1998, is a wholly-owned enterprises, the company is headquartered in Dongguan Changan. Company plant 3,500 square meters, more than 80 employees. Production base is located in Yizhou City, Guangxi Economic Development Zone Covers an area of 53.92 acres and a building area of  23000 square meters, the whole plant existing staff more than 400. Branch located in Guangxi Hechi Luo City, the existing staff of more than 200 people, Xu Hui has experienced years After the market competition, the Ebb Tide sand is now in the gold, after improving its production and development capabilities, Xuhui has become a brand worth trusting by customers. ,Window dressing and make-up boxes and other series of packaging products, packaging products exported to Europe and the United States, Southeast Asia and Hong Kong, Macao and Taiwan, the brand has created more honor and more market value. Xu Hui well-produced products and on time delivery Good quality, is to win customers Jiabao.Xu Hui will uphold the credibility of the first, quality first, customer first business philosophy.Xu Hui decorative box determined to make progress, advancing with the times, the company all staff look forward to working with your sincere cooperation, join hands in creating a better future. more>

$0.02

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Longhai City Wing Lung Foam Packaging Co., Ltd.

Product Description: Ultra-light composite material, simple to assemble multiple shapes, green protective material waterproof and moisture resistant more>

$55

Category: Others

Company: New Dawn Explosion-proof Electrical Appliances (Changzhou) Co., Ltd.

Product Description: Product FeaturesThe housing is formed by high-pressure die-casting of aluminum alloy, with surface shot blasting followed by electrostatic powder coating; the entry ports offer multiple methods and specifications to meet various on-site wiring needs; specialized anti-twist terminals ensure safety, reliability, and convenient wiring;The thread type for entry ports is typically pipe thread, but can also be customized to metric thread or NPT thread upon request; suitable for conduit or cable wiring. more>

$120

Category: Chemicals/Rubber & Products/Rubber Products

Company: Shandong Meihuan Rubber & Plastic Co., Ltd.

Product Description: Coal Mine Conveyor Dust-proof Rubber Seal Strip Dust Barrier CurtainThe dust barrier curtain can be used in both retreating mining faces and development faces, as well as in isolated roadways of development faces. It can suppress and extinguish coal dust generated by processes such as blasting and loading.The dust barrier curtain is easy to install, convenient to use, and durable.It is commonly used at the outlet of conveyor chutes, in coal mine roadways,workshop partitions, coal bunker discharge points, etc., to suppress dust and reduce noise.Product Name: Dust Barrier Curtain / Coal Barrier Curtain / Conveyor Chute Dust Barrier CurtainMaterial Composition: Rubber strips, steel plates, bolts and nuts; polyurethane materials can also be usedManufacturer: Shandong Meihuan Rubber & Plastic Co., Ltd.Storage Method: Store at room temperature in a dry place; avoid acids and alkalisCommon Dimensions: Standard; 200mm, 250mm wide, 6mm diameter; custom width, number of layers, and length available upon customer requestApplication Range: Roadways / Belt Conveyor Chutes, etc.The dust barrier curtain effectively blocks and filters airborne floating coal dust. Its dust suppression effect is superior to that of a standalone water curtain system. Compared to dust suppression sprays, the dust barrier curtain shows significantly better results, with a dust reduction efficiency more than 20 times higher than using dust suppression sprays alone. The dust barrier curtain does not affect ventilation.The dust removal effect of chutes is relatively poor. The main reasons for this are incomplete dust-proof structures and an excessively large flow area at the chute outlet (almost open), allowing dust to escape freely without resistance. To address these issues, double or multiple layers of soft dust barrier curtains are installed at the chute outlet. After implementation, the dust removal efficiency of the chute significantly improves, effectively controlling the free escape of dust and greatly reducing the dust concentration in coal conveying trestles.Consider using dust barrier curtains in dust control solutions. They do not affect ventilation. Dust barrier curtains can be used in retreating mining faces, development faces, and isolated roadways of development faces. Using dust barrier curtains reduces coal dust in mining faces. Mining operations are one of the processes with the highest dust generation in mine production, especially with the application of top coal caving mining techniques in recent years, which has further increased dust generation during mining operations. more>

$10

Category: Hardware & Tools/Molds & Dies/Other Molds

Company: Baoding Chili Mold Manufacturing Co., Ltd.

Product Description: The retaining wall mold adopts an internal hollow structure, accompanied by two box structures, with an external porous design and complex sidewall structure, making the technical requirements for template production very stringent. In the display effects of retaining wall molds - stepped retaining wall molds - box-type retaining wall molds, many are improved or rearranged based on studying the molds we produce. This is because, in the production of retaining wall molds, we always produce the molds in advance according to the drawings required by the customer. The application of the molds is very simple and convenient, resulting in aesthetically pleasing retaining wall precast blocks with excellent performance, all strictly produced according to the drawings. The key lies in our factory technicians' understanding of the drawings.Materials for retaining wall production: Retaining walls are made of steel because retaining wall molds are primarily cast-in-place types. The environmental conditions at different construction sites vary greatly, and many construction sites generally have harsh natural conditions. Only by using steel can the molds maintain good sturdiness. Steel molds are also relatively easy to maintain. When the molds are not in use, simply keeping them away from humid air prevents oxidation for extended periods.Production process of retaining wall molds: First, the mold must be designed. Sometimes, mold drawings cannot accurately provide the required data, so the factory needs to design based on the intended use. Second, steel selection is made according to needs and cut to appropriate sizes. Next is the connection of the templates, which is sometimes fixed with screws and other times requires direct welding. Then, reinforcement of the mold is carried out, typically adding rib plates or reinforcement plates at key or stress-bearing parts to enhance the mold's strength. Surface treatment of the mold is also necessary: imperfections must be polished, and the mold must be sprayed with rust inhibitor to ensure its durability.Baoding Chili Mould Manufacturing Co., Ltd. produces various types of retaining wall steel molds, retaining wall molds, etc., year-round and can create a wide variety based on drawings. more>

$7800

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

Company: Ruizi Technology (Dongguan) Co., Ltd.

Product Description: I. Basic Introduction1. Working PrincipleIts working principle is based on specific wavelengths of ultraviolet light emitted by UVLED. When items coated with materials requiring curing, such as ink, glue, or paint, are placed into the drawer and pushed into the curing chamber, the ultraviolet light emitted by the UVLED source irradiates these materials. The photoinitiators in the materials absorb the energy from the ultraviolet light and undergo a chemical reaction, causing the liquid material to rapidly transform into a solid state, thereby achieving the purpose of curing.2. Product ParametersII. Features1. Ease of Operation: The drawer-style design allows users to quickly place and remove items without complex operational procedures.2. Quick Start: Compared to traditional mercury lamps, the UVLED curing chamber requires no preheating and can start instantly.3. Excellent Curing Effect: Since the UVLED light source provides stable and appropriately wavelength ultraviolet light, it ensures uniform and thorough curing.4. Energy Efficiency: The UVLED drawer-style curing chamber is relatively energy-efficient, offering significant advantages in energy consumption compared to traditional curing equipment.5. Eco-Friendly and Pollution-Free: The UVLED curing chamber contains no harmful substances such as mercury and does not produce ozone emissions, meeting the requirements of environmentally friendly production.III. Application AreasThe application areas of the UVLED curing chamber are very extensive.1. In the printing industry, it can be used for the rapid curing of UV inks, improving printing efficiency and meeting environmental requirements.2. In the electronics industry, it is used for curing circuit board coatings, chip encapsulation adhesives, etc. The furniture manufacturing industry uses it to cure UV coatings, giving furniture surfaces excellent performance.3. In the medical device manufacturing industry, it can be used for curing adhesives in medical device assembly and surface marking printing. more>

$1000

Category: Construction & Building Materials/Cement/Cement & Cementitious Materials

Company: Hebei Bangzhu Building Materials Co., Ltd.

Product Description: more>

$68.00

Category: Machinery & Equipment/Valves/Other Valves

Company: Shanghai Yunlong Marine Valve Co., Ltd.

Product Description: The marine globe check valves produced by our company include:Marine Flanged Cast Iron, Bronze Suction Check Valve CB/T3478-92 (DN32-DN250)Marine Bronze Wafer Check Valve CB/T3819-99 (DN50-DN500)Marine Bronze Globe Check Discharge Valve CB/T 557-75 (DN50-DN125)Marine Flanged Cast Steel Globe Check Valve GB/T585-99 (DN20-DN300), CB/T3197-95(DN40-DN250), CBM1049-81(DN50-DN250)Marine Hydraulic Globe Check Valve CB/T4158-2011Marine Flanged Cast Steel Check Valve GB/T586-99 (DN20-DN300), CBM1050-81Marine Flanged Bronze Globe Check Valve GB/T588-93 (DN15-DN150), CB855-76(DN32-DN150)Marine Flanged Bronze Check Valve GB/T589-93 DN15-DN150Marine Flanged Cast Iron Globe Check Valve GB/T591-93 DN20-DN200Marine Flanged Cast Iron Check Valve/Lift Check Valve GB/T592-93 DN20-DN200Marine External Thread Bronze Globe Check Valve GB/T596-83 DN6-DN32Marine External Thread Bronze Check Valve GB/T597-83 DN10-DN32Marine Low-Pressure External Thread Bronze Check Valve GB/T1952-80 DN10-DN32Marine Low-Pressure External Thread Bronze Globe Check Valve GB/T1953-84 DN10-DN32Marine External Thread Forged Steel Globe Check Valve GB/T1241-83 DN10-DN32Marine Internal Thread Bronze Straight-Through Check Valve CB/T310-99 DN15-DN50Marine Flanged Cast Steel Side Globe Check Valve GB/T1853-94 DN40-DN350Marine Flanged Cast Iron Suction Globe Check Valve Box GB/T1855-93 DN40-DN200Marine Flanged Cast Steel Vertical Check Valve GB/T11696-96 (DN100-500), CB900-79(DN15)Marine Air Right-Angle Globe Check Valve with Mounting Plate GB/T590-95(DN15-DN20)Marine High Air Right-Angle Check Valve CB591-96Marine Hose Coupling Check Valve CB300-77 DN15-DN80Marine Hose Coupling Globe Check Valve CB301-77 DN15-DN80Marine Wafer-Type Double-Disc Butterfly Check ValveCast Steel Swing Check ValveJapanese Standard Marine 10K Cast Steel (Straight Through/Right Angle) Globe Check Valve CB/T4003, JIS F7471/F7472, CBM1049-81Japanese Standard Marine 20K Cast Steel (Straight Through/Right Angle) Globe Check Valve CB/T4005, JIS F7473/F7474, CBM1052-81Japanese Standard Marine 5K Cast Iron (Straight Through/Right Angle) Globe Check Valve CB/T4008, JIS F7353/F7354, CBM1088/1120Japanese Standard Marine 5K Cast Iron (Straight Through/Right Angle) Lift Check Valve CB/T4009, JIS F7358/F7359, CBM1089-81Japanese Standard Marine 5K Cast Iron Swing Check Valve JIS F7372Japanese Standard Marine 10K Cast Iron (Straight Through/Right Angle) Globe Check Valve CB/T4011, JIS F7375/F7376, CBM1082-81Japanese Standard Marine 10K Cast Iron Swing Check Valve JIS F7373Japanese Standard Marine 16K Cast Iron (Straight Through/Right Angle) Globe Check Valve JIS F7377/F7378Japanese Standard Marine 5K Bronze (Straight Through/Right Angle) Globe Check Valve CB/T4013, JIS F7351/F7352, CBM1070-81Japanese Standard Marine 5K Bronze (Straight Through/Right Angle) Check Valve CB/T4014, JIS F7415/F7416, CBM1071-81Japanese Standard Marine 5K Bronze Swing Check Valve CB/T4019, JIS F7371, CBM1127-81Japanese Standard Marine 5K Bronze Lift Check Valve JIS F7356Japanese Standard Marine 16K Bronze (Straight Through/Right Angle) Globe Check Valve CB/T4016, JIS F7409/F7410, CBM1076-81Japanese Standard Marine 16K Bronze (Straight Through/Right Angle) Check Valve CB/T4017, JIS F7417/F7418, CBM1077-81Marine Bronze Ball Globe Check Valve 5K—JIS F 7411 (Combined Bonnet Type)Marine Bronze Ball Globe Check Valve 16K—JIS F 7413 (Combined Bonnet Type)Marine Bronze Angle Globe Check Valve 5K—JIS F 7412 (Combined Bonnet Type)Marine Bronze Angle Globe Check Valve 16K—JIS F 7414 (Combined Bonnet Type)Marine Bronze Ball Lift Check Valve 5K—JIS F7415 (Combined Bonnet Type)Marine Bronze Ball Lift Check Valve 16K—JIS F 7417 (Combined Bonnet Type)Marine Bronze Angle Lift Check Valve 5K—JIS F 7416 (Combined Bonnet Type)Marine Bronze Angle Lift Check Valve 16K—JIS F 7418 (Combined Bonnet Type)150 lb Bronze Ball Globe Check Valve 5K/10K JIS F7400-96German Standard Marine Bronze Globe Check Valve DIN86261Supply 150 lb Bronze Ball Globe Check Valve | Japanese Standard Marine 5K10K Bronze Ball Globe Check ValveModel: JIS F7400-1996Nominal Pressure: 5K 10KNominal Diameter: DN15-DN80mm,Applicable Media: Seawater, Freshwater, OilMaterial: Valve Body Material is ZCuSn5Pb5Zn5, Disc Material is ZCuZn40Pb2, Bonnet and Stem Material is HPb59-1Marine Flanged Suction Check Valve CB/T3478-1992Type: R Type RS Type, Y Type, YS Type,Nominal Diameter: DN32-DN250mm,Applicable Media: Seawater, Freshwater, OilMaterial: Valve Body Bonnet: Cast Iron/Tin Bronze, Disc: Tin Bronze, Stem: Brass.Marine Bronze Wafer Check Valve (Marine Bronze Wafer Check Valve CB/T3819-1999)Nominal Diameter: DN50-DN500Nominal Pressure: PN1.0 MPAApplicable Media: Freshwater SeawaterMaterial: Valve Body Material is Aluminum Bronze/Stainless Steel; Disc Material is Cast Aluminum Bronze/Stainless SteelMarine Flanged Cast Steel Seawater Globe Check Valve CB/T3197-95(DN40-DN250), CBM1049-81(DN50-DN250) Marine Hydraulic Globe Check Valve CB/T4158-2011Applicable Media: Seawater, FreshwaterType: A Type, AS Type, B Type, BS TypeNominal Pressure: PN0.6/1.0/1.6 MPANominal Diameter: DN40-DN250mm,Material: Valve Body, Bonnet Material is ZG230-450; Disc Material is ZCuSn10Zn2; Seat Material is ZCuA19Mn2; Stem Material is CuA19Mn2Our Company Supplies Marine Bronze Globe Check Discharge Valve Marine Discharge Valve Marine Flanged Bronze Check Valve CB/T557-75Type: A Type--Remote Control Globe Check Discharge Valve B Type--Globe Check Discharge ValveApplicable Media: SeawaterFlange Connection Standard: GB 569-65Material: Valve Body, Disc and Bonnet Material is ZCuSn10Zn2; Stem Material is QA19-2Specification: DN50-DN125Nominal Pressure PN: 0.1MPaMarine Flanged Cast Steel Globe Valve GB/T584-99 Marine Flanged Cast Steel Globe Check Valve GB/T585-99, Marine Flanged Cast Iron Globe Valve GB/T590-93 Marine Flanged Cast Iron Globe Check Valve GB/T591-93, Marine Flanged Bronze Globe Valve GB/T597-93 Marine Flanged Bronze Globe Check Valve GB/T588-93 Type; A Type AS Type B Type BS Type, Nominal Pressure; PN0.6 1.0 1.6 2.5 4.0 6.4. Applicable Media; Seawater, Freshwater, Lubricating Oil, Water Vapor not exceeding 300°C, Valve Body; Cast Steel/Ductile Iron/Bronze, Stem; Stainless Steel/Aluminum Bronze, Disc; Stainless Steel/Tin Bronze, Nominal Diameter; DN15-DN500.Marine Flanged Cast Steel Check Valve GB/T586-99, Marine Flanged Cast Iron Check Valve GB/T592-93, Marine Flanged Bronze Check Valve GB/T589-93, Applicable Media; Seawater, Freshwater, Lubricating Oil, Water Vapor not exceeding 300°C, Type; A Type AS Type B Type BS Type, Nominal Pressure; PN0.6 1.0 1.6 2.5 4.0 6.4. Applicable Media; Seawater, Freshwater, Lubricating Oil, Water Vapor not exceeding 300°C, Valve Body; Cast Steel/Ductile Iron/Bronze, Stem; Stainless Steel/Aluminum Bronze, Disc; Stainless Steel/Tin Bronze, Nominal Diameter; DN15-DN500.Marine External Thread Forged Steel Globe Valve GB/T594-83 Marine External Thread Forged Steel Globe Check Valve GB/T1241-83, Marine External Thread Bronze Globe Valve GB/T595-83, Marine External Thread Bronze Globe Check Valve GB/T596-83, Marine External Thread Bronze Check Valve GB/T597-83, Marine External Thread Low-Pressure Bronze Globe Valve GB/T1951-84, Marine External Thread Low-Pressure Bronze Globe Check Valve, GB/T1953-84, Marine External Thread Bronze Check Valve GB/T1952-80, Marine Internal Thread Bronze Globe Valve GB/T309-99, Marine Internal Thread Bronze Straight-Through Globe Valve GB/T310-99, Nominal Diameter; 6-32, Applicable Media; Seawater, Freshwater, Lubricating Oil, Fuel Oil, Air, Type; A Type, B Type.Marine Low-Pressure External Thread Bronze Check Valve GB/T1952-80Type: A, B TypeApplicable Media: Seawater, Freshwater, Fuel Oil, Lubricating Oil and Steam t≤250°CNominal Pressure: 1.6MPaNominal Diameter: DN10～DN32Material: Valve Body, Bonnet, Disc Material is ZCuSn10Zn2.Marine Low-Pressure External Thread Bronze Globe Check Valve GB/T1953-84Type: A, B TypeApplicable Media: Seawater, Freshwater, Fuel Oil, Lubricating Oil and Steam t≤250°CNominal Pressure: 1.6MPaNominal Diameter: DN10～DN32Material: Valve Body, Bonnet, Disc Material is ZCuSn10Zn2, Stem Material QA19-2Marine External Thread Forged Steel Globe Check Valve GB/T1241-83Type: A, B TypeApplicable Media: Seawater, Freshwater, Fuel Oil, Lubricating Oil and Steam t≤250°CNominal Pressure: 4.0MPaNominal Diameter: DN10～DN32Material: Valve Body, Bonnet Material is Mild Steel, Disc, Stem Material is Stainless Steel, Handwheel is Malleable Cast IronMarine Internal Thread Bronze Straight-Through Check Valve GB/T310-1999Applicable Media: Pipelines for Seawater, Freshwater, Fuel Oil, Lubricating Oil and Steam t≤250°CNominal Pressure: 1.6MPaNominal Diameter: DN15～DN50Material: Valve Body, Bonnet, Disc Material is ZCuSn10Zn2Marine Flanged Cast Steel Side Globe Check Valve GB/T1853-94Type: A Type/B Type (According to GB/T569), AS Type/BS Type (According to GB/T2501)Applicable Media: Seawater, FreshwaterNominal Pressure: 0.6MPaNominal Diameter: DN40～DN350Material: Valve Body, Bonnet Material is Cast Steel, Disc, Seat Material is Cast Aluminum Bronze, Stem is Aluminum Bronze.Marine Hose Coupling (Bronze and Brass) Check Valve CB300-77Type: Q (Bronze Check Valve), H (Brass Check Valve)Nominal Pressure: 0.6MPaNominal Diameter: DN15-DN80Bronze Check Valve Applicable Media: SeawaterBrass Check Valve Applicable Media: Freshwater, Lubricating Oil, Fuel Oil and Compressed AirBronze Valve Material and Standard Number: Valve Body, Disc, Bonnet Material is Cast Tin Bronze, Standard Number: GB 1176-74Brass Valve Material and Standard Number: Valve Body, Disc is Cast Silicon Brass, Bonnet is Cast Lead Brass, Standard Number: GB 1176-74Marine Hose Coupling Bronze and Brass Globe Check Valve CB301-1977Type: Q (Bronze Check Valve), H (Brass Check Valve)Nominal Pressure: 0.6MPaNominal Diameter: DN15-DN80Bronze Globe Check Valve Applicable Media: SeawaterBrass Globe Check Valve Applicable Media: Freshwater, Lubricating Oil, Fuel Oil and Compressed AirBronze Valve Material and Standard Number: Valve Body, Bonnet, Disc is Cast Tin Bronze, Standard Number: GB 1176-74, Stem is Tin Brass Standard Number: YB 457-71Brass Globe Valve Material and Standard Number: Valve Body, Disc is Cast Silicon Brass, Standard Number: GB 1176-74, Bonnet is Cast Lead Brass, Standard Number: GB 1176-74, Stem is Iron Brass, Standard Number: YB 457-71Japanese Standard Marine 10K Cast Steel (Straight Through/Right Angle) Globe Check ValveProduct Model: CB/T4003, JIS F7471/F7472, CBM1049-81 more>

$8800

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

Company: Hangzhou Lantian Instrument Co., Ltd.

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 superior temperature uniformity. The exterior is made of cold-rolled steel with a sprayed plastic finish, offering an aesthetically pleasing appearance.The control unit utilizes 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 control unit is integrated at the lower part of the chamber, with all electrical connections between the furnace body and the temperature controller completed before shipment. Simply connect to power to begin use. 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: 400*250*160 MM (16L);1.5 Overall Dimensions: 740*550*750 MM;1.6 Heating Rate: ≤10°C/min (adjustable to any rate below 10°C per minute);1.7 Total Power: 8KW;1.8 Power Supply: 380V, 50Hz;II. Temperature Control System2.1 Temperature Measurement: K-type nickel-chromium/nickel-silicon thermocouple;2.2 Control System: LTDE fully automatic programmable instrument, PID adjustment, display accuracy 1°C;2.3 Electrical Components: Brand contactors, cooling fans, solid-state relays;2.4 Time Control: Adjustable heating time, 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 film 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: Insulating bricks and insulating wool;3.4 Temperature Measurement Port: Thermocouple enters from the upper rear of the furnace body;3.5 Terminal Blocks: Heating element terminals located at the lower rear of the furnace body;3.6 Controller: Located below the furnace body, with built-in control system and compensation wires connected to the furnace;3.7 Heating Elements: High-temperature resistance wires;3.8 Total Weight: Approximately 120KG;3.9 Standard Packaging: Wooden crate.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: Machinery & Equipment/Compression & Separation Equipment/Screw Compressors

Company: Shenzhen Jiujing Refrigeration Equipment Co., Ltd.

Product Description: Steel Box Girder Welding Cooling Air Conditioning UnitAddresses the construction environment issue of high temperatures inside steel box girders during bridge construction in summer. Due to the high-temperature environment, construction workers are unable to perform normal operations, making the use of refrigeration-type cooling equipment a necessary choice. The steel box girder welding cooling air conditioning unit provides point-to-point localized cooling for steel box girder welding construction, reducing the construction environment temperature to below 28 degrees Celsius, thereby improving the working environment temperature and enhancing workers' construction efficiency.Unit Features1. The unit features an all-in-one design, plug-and-play operation, no installation required, low power consumption, compact size, and easy mobility.2. Scientifically designed, meticulously manufactured, aesthetically pleasing appearance, compact size, reliable performance, and quality.3. The air outlet is designed for side discharge, which can be customized according to user requirements and specific usage scenarios.4. The fan is a snail-type fan with high air volume, long-distance air delivery, low noise, ensuring sufficient airflow. The fan bearings use lithium-based grease, eliminating the need for lubricant addition during long-term operation.Steel Box Girder Welding Cooling MethodThrough the action of the fan, natural air is drawn into the steel box girder welding cooling air conditioning unit for refrigeration. The cooled air is then introduced into the steel box girder via air ducts, effectively reducing the temperature inside the box. This eliminates the high-temperature work pressure on construction workers.Heavy Industry CoolingMarine steel box girder welding cooling air conditioning unit is a mobile product designed by our company based on the current needs of the shipbuilding industry and the working environment conditions. This product is mainly used in high-temperature work environments such as hull sections, sandblasting, and decks. It ensures both a constant and low temperature in the space, providing comfort for welders' operation rooms, and maintains the welding process at a stable temperature, ensuring the product remains within a specific temperature range. Widely used in enclosed large welding spaces such as bridges and shipyards.Equipment Packaging and Transportation1. For nearby customers, the equipment is packaged with cardboard and protective film and transported by dedicated vehicles.2. For customers purchasing fewer and smaller units over long distances, packaging includes cardboard, protective film, and wooden frames, with logistics transportation. For larger units over long distances,3. Cardboard and protective film packaging can be used, with dedicated vehicle transportation.4. For export, wooden crate packaging is used, with dedicated vehicles or logistics transportation to the cargo ship terminal.After-Sales ServiceEquipment produced by our company: one-year warranty, lifetime maintenance (excluding human factors and consumables).Upon receiving the customer's written equipment repair notice, response and on-site repair within 36 hours for locations within Guangdong Province, and 72 hours for locations outside Guangdong Province.Technical ParametersModelModelRefrigeration CapacityRefrigerating capacityCompressorCompressorEvaporatorEvaporatorCondenserCondenserFanwater pumpAir OutletAir outletDimensionsShape dimensionNet WeightNet weightkcal/hkWkWhpm³/hm³/hkWmmcmkgJRA-15A3741043.55.5×2153000150002.2180160×75×190480JRA-20A49880587.5×2204000200003200170×90×210660JRA-25A5985669.69×2255000250003.75200190×100×210740JRA-30A74820877.5×3306000300004200220×100×210810JRA-40A997601167.5×4408000400005.5200240×140×220980 more>

$36000

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Chengdu Qichuang Tiancheng Technology Co., Ltd.

Product Description: I. Product IntroductionBased on a high-performance chip platform, it provides multi-computing power, high-value, low-power consumption computing intelligent hardware. It can connect to network cameras to offer video algorithm analysis capabilities, meeting video-centric data access and cloud-based requirements. It supports access to multiple types of data sources, enabling rapid aggregation and concurrency of video streams. It helps industry applications achieve intelligent, cloud-based, and data-integrated device capabilities.II. Product FeaturesØ24/7 Monitoring: Compatible with existing front-end monitoring devices and systems to continuously analyze and judge surveillance footage, enabling round-the-clock automated video monitoring;ØTimely Response: High utilization of unstructured data, capable of quickly processing massive front-end data, making timely event judgments and warnings to avoid missed reports;ØAccurate Alerts: Customizable high-precision algorithms can be developed based on actual needs, leveraging powerful image processing capabilities to accurately identify abnormal situations and avoid false alarms;ØRich Algorithms: Supports recognition of people, vehicles, and objects, as well as multi-channel video structured analysis; provides customized algorithms and deployment solutions to meet various scenario requirements;ØIntelligent Management: Supports automatic alarms, customizable analysis areas, abnormal events, automatic video storage, and other functions for smarter management;III. FunctionsFace recognition, safety helmet detection, reflective clothing detection, absence detection, area intrusion, channel occupancy, smoke and fire detection, line crossing detection, illegal parking detection, fall detection, loitering detection, smoking detection, phone call detection, license plate recognition, road condition detection, traffic flow detection, people counting, crowd density detection, passenger flow statistics, queue detectionIV. Application ScenariosSuitable for smart communities, smart campuses, smart elevators, smart water management, transparent kitchens, smart retail, smart construction sites, emergency command centers, smart security, smart energy, smart manufacturing, smart parks, smart logistics, smart retail, smart transportation, smart power, smart chemical industry, smart mining, smart metallurgy, smart ports, smart warehousing, smart oil fields, and other fields. more>

Negotiable

Category: Others

Company:

Product Description: Dingwang Building Materials Co., Ltd., Qingxu County, Taiyuan City, Shanxi Province Website: http://www.qingxudingwang.com Contact: Mr. Hu Phone: 18703401090 **Development Directions of Cast-in-Place Concrete Hollow Floor Slabs** Since the early 1990s, the engineering application and related research on cast-in-place concrete floor slabs have gradually increased in China. Due to concrete savings, reduced structural self-weight, and significant economic benefits, research focused on manufacturing inner molds has developed rapidly, entered the market, and begun engineering applications. Over the past decade, this technology has been applied in more than 20 provinces and cities, covering tens of millions of square meters of buildings. This article discusses the main issues in the application of cast-in-place hollow floor slabs. 1. **Application of Prestressing Technology** When the span and load of cast-in-place hollow floor slabs are large, the use of prestressing is effective for controlling cracks and increasing load-bearing capacity. Currently, the unbonded post-tensioned prestressing technique is widely used in engineering. It allows for reasonable curved reinforcement to enhance the resistance of components. The construction method in actual projects is similar to that of ordinary floor slabs, but it is important to ensure sufficient cross-sectional width, avoid interference with inner molds and the resulting hollow sections during reinforcement placement, and strengthen the prestressed anchorage ends with effective structural measures. 2. **Improvement of Construction Techniques** A major difficulty in constructing cast-in-place hollow floor slabs is the buoyancy of inner molds. As internal formwork for shaping the cross-section, inner molds generate significant buoyancy during concrete pouring. Therefore, securing the position of inner molds is a key technical challenge in the construction of cast-in-place hollow floor slabs. Currently, three methods are employed: fixing inner molds to the bottom formwork with iron wires; positioning and pressing inner molds with steel reinforcement frames or structural steel frames; and a combination of downward pulling and upward pressing. Most methods used in practice are empirical, with varying effectiveness, making evaluation difficult. Since buoyancy-induced displacement of reinforcement and thinning of the concrete compression zone significantly affect structural performance, necessary experimental research should be conducted. For example, calculating buoyancy forces in actual construction and developing effective measures to prevent buoyancy. 3. **Diversification of Inner Molds** Due to substantial profits, much of the research on hollow floor slabs has focused on the development and improvement of inner molds. From initial paper tube cores, inner molds have evolved into various forms with different materials, processes, and shapes. The shapes can generally be categorized into three types: circular tube cores, continuous cylindrical tubes, and rectangular boxes. Some boxes feature holes in the middle, curved tops, or other shapes. In terms of materials, options include thin-walled glass fiber cement bodies, assembled hard plastic thin-walled bodies, polypropylene plastic hollow bodies or poly light solid bodies, as well as solid bodies made of lightweight materials such as perlite. more>

$2.8

Category: Machinery & Equipment/Gear Reducers & Speed Variators/Cycloidal Pinwheel Reducers

Company: Dongguan Shunjie Gear Co., Ltd.

Product Description: In the era of rapid development of smart devices, the precision and reliability of transmission systems directly determine product competitiveness. With 15 years of industry experience, Shunjie Gear Co., Ltd. proudly launches the TT Motor Gearbox Series, redefining the value standards of micro transmission solutions with 3V-12V wide voltage compatibility, 11 precision speed ratios (from 1:21 to 1:288), and end-to-end customization services.I. Core Advantages: Precise Matching, Uninterrupted PowerFull-Scenario Voltage CompatibilityAchieves breakthrough compatibility with 3V-12V DC voltage, ensuring stable operation from 3V toy motors to 12V industrial drives. Equipped with an intelligent voltage stabilization module, it maintains ±3% speed accuracy even with ±15% voltage fluctuations, perfectly adapting to scenarios with stringent stability requirements such as smart homes, medical devices, and consumer electronics.Precision Speed Ratio MatrixOffers 11 standardized speed ratios (1:21/37/48/60/85/105/120/180/220/256/288), covering output requirements from 0.5rpm to 1200rpm. Utilizing a planetary + parallel-axis composite transmission structure, it achieves a transmission efficiency of over 85%, saving 30% more energy than traditional gearboxes. 18924335709 more>