Find Hot

Enterprise hot news

Blog

  • Joining Forces for Mutual Success — Kossel Medtech and FuseMedTech Announce Strategic Partnership

    Kossel Medtech (Suzhou) Co., Ltd. (“Kossel Medtech”) and Shanghai Rongmai Medical Technology Co., Ltd. (“FuseMedTech”) have officially established a strategic partnership. Both companies will deliver comprehensive integrated solutions for peripheral vascular intervention, fostering deep collaboration across global commercialization, clinical program development and technological innovation.

    Strategic Alignment to Expand Clinical Access for Peripheral Vascular Implantable Interventional Devices

    FuseMedTech specializes in vascular interventional device development, addressing unmet clinical needs through continuous innovation. Its product portfolio is anchored by the FuseVive® Pulmonary Artery Thrombectomy System, covering peripheral vascular embolism, peripheral thrombus removal and hepatic interventional procedures. Drawing on Kossel Medtech’s well‑established commercial channels, clinical education and regulatory access capabilities, FuseMedTech’s innovative domestic devices will reach broader patient populations living with peripheral vascular disease worldwide.

    FuseSuper® Peripheral Fibered Embolization Coil (Pushable Coil)

    Manufactured in‑house by Shanghai Xiaoyu Medical Technology Co., Ltd. (“Xiaoyu Medical”), a wholly‑owned subsidiary of FuseMedTech, the FuseSuper® Peripheral Fibered Embolization Coil (Push‑able Coil) is China’s first domestically‑manufactured push‑able peripheral fibered embolization coil granted marketing clearance by the NMPA.

    – Constructed with platinumtungsten alloy and dense fibers, the device delivers excellent radiopacity, MRI compatibility and biocompatibility.
    – Offered in 0.018‑inch and 0.035‑inch delivery systems. A comprehensive size and shape portfolio meets diverse clinical demands. Its unique bi‑hemispherical geometry lowers push‑resistance and minimizes vessel trauma for enhanced procedural safety.
    – Proprietary loading and delivery hardware improves handling stability, optimizes coil‑catheter docking, and boosts reliability during coil deployment.

    FuseSuper® Peripheral Fibered Embolization Coil

    FuseEasy® Peripheral Detachable Fibered Embolization Coil System (ControlledDeployment Coil)

    FuseEasy® is Xiaoyu Medical’s flagship peripheral interventional system, indicated for embolization of peripheral aneurysms, arteriovenous fistulas, arteriovenous malformations and other peripheral vascular lesions.

    – It adopts an innovative dual‑latch mechanical detachment design for secure connection. Push, retraction and repositioning are permitted prior to deployment, enabling precise, controlled deployment and reducing the risk of unintended premature detachment.
    – Variable‑diameter multi‑segment push wire with PTFE coating balances column strength and trackability. It maintains reliable push‑and‑pull performance within tortuous, complex vasculature to streamline workflow.
    – Supports both 0.018‑inch and 0.035‑inch platforms, with 2D, Cross and 3D coil configurations across 98 total configurations. It addresses the full embolism workflow: target vessel occlusion, aneurysm basket framing, dense packing and final contour filling, delivering versatile options for peripheral embolization cases.

    FuseEasy

    FuseVive® Pulmonary Artery Thrombectomy System

    Developed in‑house by FuseMedTech, the FuseVive® system features a minimally‑invasive “large‑bore aspiration + mechanical thrombectomy” workflow for safe, efficient removal of large thrombus within the main pulmonary artery and its major branches. Key clinical benefits:

    – Robust Thrombus Clearance: Proprietary dual‑set disc geometry conforms to native pulmonary artery anatomy and improves mural thrombus removal efficacy.
    – Intra‑procedural Bleeding Control: Adaptive hemostasis valve minimizes unnecessary blood loss and enhances patient safety.
    – High‑Performance Aspiration: Volume‑calibrated aspirator pairs with the large‑bore aspiration catheter to deliver consistent high negative pressure. It reduces catheter clogging and shortens procedure duration.
    – Simplified Workflow: Streamlined device design supports intuitive handling, improves operating efficiency and flattens the operator learning curve.

    FuseVive® Pulmonary Artery Thrombectomy System

    Ecosystem Expansion & Continuous Platform Advancement

    Kossel Medtech pursues its dual‑focus strategy of in‑house innovation and ecosystem integration, expanding its pan‑vascular interventional footprint through strategic acquisitions and industry partnerships.

    Through in‑house strategic acquisitions, Kossel Medtech has integrated Biotriton Medical and Xinzhi Medical. Biotriton brings peripheral intravascular ultrasound (IVUS) technology, completing the full care pathway of “imaging assessment → targeted intervention”. Xinzhi Medical develops drug‑coated balloons with both sirolimus‑ and paclitaxel‑based formulations, strengthening Kossel Medtech’s market position for “implant‑free coronary intervention”.

    For external alliances, Kossel Medtech has signed strategic agreements with Innomed and Silvan Medical, securing exclusive overseas distribution rights for the Python peripheral drug‑coated balloon (DCB) and Clothoid vascular closure device, accelerating global market access for China‑origin innovations. Kossel Medtech’s platform capabilities are globally recognized, with deep‑running joint projects alongside industry leaders Abbott and Medtronic covering R&D, clinical development and commercialization, enabling mutual knowledge and resource exchange between domestic innovation and global healthcare stakeholders.

    This collaboration marks a major milestone for Kossel Medtech’s ecosystem build‑out. It broadens the company’s peripheral intervention product portfolio and advances its vision of delivering a complete one‑stop peripheral interventional solution. As the partnership evolves, both parties will explore further joint innovation, bring diverse interventional treatment options to clinicians worldwide, benefit larger patient cohorts, and drive high‑quality sustainable progress within China’s peripheral intervention sector.

  • Metal vs Plastic Impellers in Centrifugal Fans: Fire Safety, Strength & Performance

    When selecting a centrifugal fan, airflow, static pressure, efficiency and noise are usually the first parameters considered. Impeller material, however, is often reduced to a simple assumption: metal is stronger, while plastic is lighter.

    In practice, impeller material affects structural strength, dimensional stability, manufacturing methods and environmental suitability. It should not be evaluated independently of blade geometry, impeller diameter, operating speed or temperature.

    In this article, metal impellers mainly refer to the steel, aluminum-alloy and stainless-steel impellers commonly used in industrial centrifugal fans. Plastic impellers mainly refer to components made from glass-fiber-reinforced engineering plastics such as PA6-GF. Performance can vary significantly according to material grade, glass-fiber content and structural design. Final selection should therefore be based on the technical documentation and test results for the specific fan model.

    Comparison of the structural and material characteristics of metal and engineering-plastic centrifugal impellers

    Fire Safety: Material Properties Are Not the Same as Whole-Fan Fire Resistance

    Under normal fan operating conditions, steel and aluminum-alloy impellers do not exhibit the softening and dripping behavior associated with thermoplastics. Their metallic base materials also do not produce smoke through the thermal decomposition of a polymer matrix.

    Metal impellers can therefore offer a material-level advantage in applications where combustible materials are restricted, or where smoke generation and molten dripping are particular concerns.

    A metal impeller, however, should not automatically be regarded as suitable for smoke extraction. At elevated temperatures, the mechanical strength of steel and aluminum alloys may decrease, and thermal deformation may occur. Surface coatings, motor insulation, bearing lubricants, cables and electronic controls must also be assessed for high-temperature operation.

    Some engineering plastics can be compounded with flame retardants to achieve specified flammability ratings. These ratings describe how a standardized material specimen performs under defined test conditions. They do not, on their own, demonstrate that the complete fan is suitable for smoke extraction or has achieved a particular fire-resistance classification.

    For smoke extraction, high-temperature air handling or applications with defined fire-resistance requirements, suitability should be determined through whole-fan testing at the specified temperature and duration, rather than by impeller material alone.

    The fire safety and structural reliability of a metal impeller must be verified together with the complete fan under defined high-temperature test conditions

    Structural Strength: Focus on Allowable Tip Speed and Long-Term Stability

    At comparable temperatures and with appropriate structural design, metals generally offer a higher elastic modulus and better dimensional stability. This can provide greater design flexibility for larger impellers, higher allowable tip speeds and greater centrifugal loads.

    Even so, the reliability of a metal impeller is not determined by material strength alone. Stamping, bending and welding may introduce local deformation or residual stress. Blade attachment points, weld quality and balancing accuracy can all affect long-term operation.

    For high-speed impellers, structural safety margins may also need to be assessed through finite-element analysis, overspeed testing and fatigue validation.

    Plastic impellers are commonly manufactured from glass-fiber-reinforced engineering plastics such as PA6-GF. Glass fibers can improve stiffness and mechanical strength, but actual performance depends on fiber content, fiber orientation, wall-thickness design, ambient humidity and molding conditions.

    Injection molding allows blades, backplates and connecting structures to be formed as a single component, making complex three-dimensional blade geometries easier to produce. At the same time, designers must control molding shrinkage, warpage and anisotropic behavior caused by fiber orientation.

    For impellers operating continuously at elevated temperatures or under sustained mechanical loads, creep and long-term material aging must also be considered.

    Aerodynamic Performance: Blade Design Matters More Than Material Choice

    The aerodynamic efficiency of a centrifugal fan is not determined directly by whether the impeller is made from metal or plastic.

    Blade curvature, impeller diameter, blade count, inlet geometry, volute or airflow-path matching, and the clearance between the impeller inlet and inlet cone all influence flow separation, recirculation losses and pressure development.

    Injection molding is well suited to complex surfaces and smooth geometric transitions. When tooling, material and processing conditions are stable, it can also provide consistent geometry across large production volumes. For this reason, molded plastic impellers are widely used in small and medium-sizedproduced in larger quantities.

    Advances in metal forming and joining technologies have also made three-dimensional blade designs possible in metal impellers. Some product generations have improved efficiency, allowable speed and acoustic performance through optimized blade profiles, inlet matching and stress distribution.

    These results, however, are usually associated with the development of specific products. They should not be interpreted as evidence that metal impellers are universally more efficient than plastic alternatives.

    The two options should be compared under the same test standard and operating conditions, using airflow–static pressure curves, total or static efficiency, input power and sound power data.

    Impeller material should be matched with the motor, airflow path, heat-exchange components and actual operating conditions

    Noise and Vibration: Material Alone Does Not Determine Acoustic Performance

    Engineering plastics generally provide greater material damping, while metals usually offer a higher elastic modulus. These characteristics can influence structural behavior, but neither directly determines the overall noise level of a fan.

    The acoustic performance of a centrifugal fan is also affected by blade-pass frequency, flow separation, impeller balance, installation stiffness, structural modes and the selected operating point.

    When a fan operates close to stall or near a structural resonance speed, noise and vibration may increase significantly even when the impeller material remains unchanged.

    Statements such as “plastic impellers are always quieter” or “metal impellers are always more stable” are therefore too broad. Low-noise selection should be based on sound power data at the specified operating point, together with the operating-speed range and the airflow path inside the equipment.

    Corrosion Resistance and Environmental Compatibility: Verify Material Suitability Case by Case

    Plastic impellers do not suffer from conventional metallic oxidation or rust and generally require no additional anti-corrosion coating in ordinary humid environments.

    However, plastic is not resistant to every medium. Oil mist, solvents, cleaning chemicals, ultraviolet exposure, high temperatures and high humidity can all affect material properties.

    Metal impellers can be manufactured from galvanized steel, coated steel, aluminum alloy or stainless steel, depending on the operating environment. Corrosion resistance varies substantially between different metal grades and surface treatments.

    Where salt spray, chemical gases or condensate may be present, material selection should be based on the actual medium and verified accordingly.

    Manufacturing Cost: Production Volume and Size Determine Overall Value

    Plastic impellers usually require a relatively high initial investment in injection-molding tools. Once stable mass production has been established, however, they can offer short molding cycles, fewer individual parts and good batch-to-batch consistency. This makes them well suited to small and medium-sized products manufactured in larger volumes.

    Metal impellers may require cutting, forming, welding, surface treatment and balancing. Although this involves more individual processing steps, metal construction often provides greater flexibility for large impellers, special dimensions and low-volume customized projects.

    Cost comparisons should therefore extend beyond the purchase price of a single impeller. Tooling investment, production volume, transport weight, maintenance conditions and expected service life should all be considered.

    Selection Must Begin with the Actual Operating Conditions

    When selecting an impeller material for a centrifugal fan, engineers should verify several key conditions:

    Does the applicable equipment standard restrict combustible materials? What are the ambient temperature and conveyed-air temperature? What are the maximum operating speed and allowable impeller tip speed? Does the airstream contain moisture, salt spray, oil mist, dust or chemical substances? Will the fan operate continuously? What safety tests and market-access requirements must the complete fan satisfy?

    Across its centrifugal fan range, Blauberg uses different impeller materials according to impeller diameter, operating speed and application environment. Model-specific documentation identifies parameters such as impeller material, motor protection, control options and performance data.

    Some models use PA6-GF impellers, while others use metal impellers. The exact configuration and scope of protection should always be confirmed in the technical specification for the relevant model.

    This product-development approach reflects an important principle: impeller material should be treated as one element of system selection and evaluated together with the motor, operating speed, airflow path, control method and application environment.

    Metal impellers are often worth considering where equipment standards restrict combustible materials, where tip speeds are relatively high, or where dimensional stability is a priority.

    Engineering-plastic impellers may be suitable where weight reduction, complex molded blade geometry and production consistency are important.

    The comparison should not be viewed as a contest between a “higher-grade” and a “lower-grade” material. The better choice is the impeller that suits the operating conditions, has been properly validated and is correctly matched to the complete fan system.

  • Trumony Aluminum Limited: Battery Cold Plate Manufacturer

    As the global electric vehicle (EV) and energy storage markets continue to grow, efficient battery thermal management has become essential for battery safety, performance, and service life. Trumony Aluminum Limited is a professional manufacturer of aluminum battery cold plates and liquid cooling components, providing customized thermal management solutions for EV, ESS, BESS, and other new energy applications.

    Professional Battery Cold Plate Manufacturing

    Headquartered in Suzhou, China, Trumony Aluminum Limited specializes in the R&D, manufacturing, and supply of aluminum battery thermal management components. With standardized production facilities, automated manufacturing equipment, and advanced testing capabilities, Trumony has developed an annual production capacity of approximately 600,000 battery cold plates.

    The company provides cooling solutions for different battery configurations, including prismatic, cylindrical, and pouch cells. Its product portfolio covers stamped cold plates, micro-channel cooling plates, tube-based cooling plates, and integrated liquid cooling plates.

    Advanced Aluminum Cooling Technology

    Trumony uses aluminum alloys and established manufacturing processes such as precision stamping, bending, welding, and vacuum brazing to produce lightweight and high-performance battery cooling components.

    Optimized internal flow channels help distribute coolant evenly across the cooling surface, improving heat transfer and reducing temperature variations within battery packs. Aluminum construction also provides a combination of thermal conductivity, lightweight design, structural strength, and corrosion resistance suitable for demanding battery applications.

    The cooling plates can be customized according to battery pack dimensions, cooling requirements, connection interfaces, nozzle positions, mounting holes, and surface treatment specifications.

    Quality Control and Testing

    Consistent quality is essential for battery thermal management components. Trumony operates according to established quality management procedures covering raw material inspection, process control, dimensional inspection, and finished-product testing.

    The company maintains ISO 9001 and IATF 16949 quality management certifications and conducts relevant tests such as pressure testing, leak testing, dimensional inspection, and thermal performance verification according to product and customer requirements.

    These quality-control processes support consistent product performance from prototype development through mass production.

    Battery Cooling Solutions for EV and ESS

    Trumony’s aluminum cold plates are designed for a wide range of applications, including passenger EVs, commercial electric vehicles, battery energy storage systems (BESS), industrial energy storage, and other high-power battery applications.

    For energy storage systems, Trumony supplies cooling plates for different battery configurations and capacity requirements. For electric vehicles, customized cooling plates can be developed according to battery pack architecture, thermal load, available installation space, and coolant requirements.

    By combining aluminum processing expertise, thermal management engineering, and production capabilities, Trumony supports customers from initial prototype development to volume production.

    Customized Thermal Management Solutions

    Battery thermal management requirements vary significantly between applications. Trumony works with customers to optimize cooling plate structure, flow channels, material selection, connection design, and manufacturing processes according to specific project requirements.

    With professional engineering capabilities, established production processes, and scalable manufacturing capacity, Trumony Aluminum Limited is committed to providing reliable aluminum battery cold plates and liquid cooling components for the global new energy industry.

     

     

     

  • The Impact of Transformer Exports on China’s Grain-Oriented Electrical Steel Market

    The Impact of Transformer Exports on China’s Grain-Oriented Electrical Steel Market

    Since the beginning of this year, China’s transformer industry has benefited from multiple structural growth drivers, including the global energy transition, the rapid expansion of AI infrastructure, and accelerating investment in power grids. As a result, both the value and volume of China’s transformer exports have increased by more than 40% year on year, maintaining a strong growth trajectory.
    However, smaller and mid-sized transformer manufacturers continue to face challenges in expanding into overseas markets due to certification barriers, limited distribution channels, and relatively weak financial capabilities. Many of these companies remain more dependent on the domestic market or on subcontracting and secondary orders from larger exporters.

    silicon steel sheet
    Copper and GOES Remain Key Cost Drivers for Transformers

    Copper and grain-oriented electrical steel (GOES) are two of the principal raw materials used in transformer manufacturing. Copper typically accounts for more than 35% of total transformer costs, while electrical steel accounts for more than 25%. Consequently, fluctuations in the prices of these two materials have a significant impact on transformer manufacturing costs and overall profitability.
    Since the fourth quarter of last year, copper prices have surged sharply, pushing up transformer prices as copper-intensive products became increasingly expensive to manufacture. By contrast, prices for GOES, another major transformer input, have remained relatively stable.
    Industry sources indicate that the stability of electrical steel prices since the beginning of this year has provided transformer manufacturers with relatively favorable cost conditions and helped support their profit margins.

    Strong Overseas Demand, but Limited Upside for High-Grade GOES

    As grid modernization accelerates across Europe and the United States, demand for transformers in overseas markets has increased substantially. At the same time, however, a significant portion of overseas customers remains highly price-sensitive.
    Although there appears to be limited room for further increases in the price of high-permeability grain-oriented electrical steel (Hi-B steel), prices have been raised by approximately RMB 100–200 per ton on a monthly basis since the beginning of this year. Even so, prices have yet to return to what would be considered a normal or sustainable level, and some products are reportedly still being sold at a loss.

    ei lamination
    Overseas Demand Structure Continues to Pressure GOES Prices

    Demand patterns across different overseas markets have also contributed to pricing pressure on China’s electrical steel industry.
    Customers in Africa and the Middle East tend to have stronger demand for conventional electrical steel grades and are less reliant on premium-grade grain-oriented electrical steel. This has increased price competition among Chinese transformer and electrical steel manufacturers, forcing producers to negotiate aggressively over raw-material costs.
    This persistent price competition is considered one of the key reasons why GOES prices have remained under pressure despite growing transformer demand.
    Another major factor is the rapid expansion of domestic GOES production capacity.
    According to incomplete industry statistics, China’s effective GOES production capacity reached approximately 4.08 million tonnes in 2025, representing an increase of around 750,000 tonnes year on year. Total production reached approximately 3.45 million tonnes, up 13% year on year, of which grain-oriented electrical steel production accounted for approximately 2.96 million tonnes.
    The continued expansion of domestic capacity has intensified competition among producers and limited the industry’s ability to pass higher costs through to downstream transformer manufacturers.

    GOES Prices Could Enter a Gradual Recovery Cycle

    Although GOES prices are currently near the bottom of the cycle, market conditions may gradually improve.
    Industry analysts expect China’s GOES market to enter a period of range-bound consolidation with an upward bias in 2026, supported by increasing demand from both domestic and international power-grid investment.
    The 14th Five-Year Plan’s successor planning cycle, commonly referred to as the “15th Five-Year Plan” (2026–2030), is expected to involve approximately RMB 4 trillion in power-grid investment. Meanwhile, grid modernization programs in the United States and Europe are expected to continue generating strong demand for transformers and related electrical steel products.
    Market research suggests that new capacity coming online in 2026, together with increasing order volumes reported by operating producers, could support a gradual recovery in GOES prices.
    There are already indications that power-grid projects under the 15th Five-Year Plan are moving into the implementation stage, with related orders beginning to enter the supply chain. Following the impact of the Chinese New Year holiday during the first quarter, a portion of these grid-investment projects is expected to enter the tendering phase from the second quarter onward.
    The pace of project implementation appears to be faster than previously anticipated by the market, potentially providing additional support to transformer and electrical steel demand.

    Transformer Demand Remains Strong Despite Weakness in Certain Domestic Segments

    Since last year, demand for small- and medium-sized transformers from domestic EV charging stations has weakened noticeably. Nevertheless, industry participants remain broadly optimistic about China’s transformer market over the next two years.
    The implementation of approximately RMB 4 trillion in planned grid investment is expected to generate substantial incremental demand for transformers. At the same time, China’s rapidly developing energy-storage sector and heavy-duty truck charging infrastructure are expected to create additional demand for conventional transformer products.
    Overseas charging infrastructure is also entering a period of accelerated development, creating further opportunities for Chinese transformer manufacturers with established export capabilities.
    In China, transformer replacement and upgrading programs in rural and township power networks are also expected to support demand for high-efficiency transformers over the coming years.
    More importantly, the rapid expansion of AI data centers and high-performance computing (HPC) facilities has emerged as one of the most certain growth drivers for the transformer industry.

    ei lamination for transformer 
    AI Data Centers Could Reshape the Future of Transformer Technology

    In October 2025, NVIDIA presented an 800V DC power architecture white paper at the OCP Global Summit, outlining a potential roadmap for power delivery in next-generation AI data centers.
    As AI infrastructure continues to scale, future data centers will require substantially higher power density, greater energy efficiency, and more intelligent power-management architectures. Against this backdrop, solid-state transformers (SSTs) are increasingly being considered as a potential long-term solution for next-generation AI factories.
    In the longer term, solid-state transformers could gain significant market share in high-end applications such as renewable energy systems, data centers, and smart grids.
    Several publicly listed companies have already begun investing in and accelerating the development of solid-state transformer technologies.
    However, industry experts generally believe that conventional transformers will remain the dominant technology in data centers and AI computing facilities in the short term, primarily because the cost of solid-state transformers remains significantly higher than that of conventional transformer systems.
    Therefore, while SSTs may represent the long-term technological direction of the industry, conventional transformers are still expected to account for the majority of near- to medium-term demand.

    Outlook

    Overall, China’s transformer and GOES industries are entering a period characterized by strong overseas demand, accelerating domestic grid investment, and rapidly expanding AI-related power infrastructure.
    For the GOES market, the combination of China’s large production capacity and intense price competition continues to limit near-term pricing power. Nevertheless, the expected acceleration of domestic grid investment, together with sustained demand from the U.S. and European power-grid upgrade cycles, could gradually tighten the supply-demand balance.
    For transformer manufacturers, meanwhile, the combination of grid modernization, renewable energy deployment, energy storage, EV charging infrastructure, and AI data centers is creating a broad-based demand cycle.
    The key question for the GOES industry is therefore no longer whether transformer demand will grow, but rather how quickly incremental transformer demand will translate into additional demand for electrical steel and, ultimately, restore pricing power to upstream GOES producers.

    https://www.lamination-core.com/the-impact-of-transformer-exports-on-chinas-grain-oriented-electrical-steel-market/

  • Green Advantages of Vegetable-Based Sodium Fatty Acid

    Vegetable-based sodium fatty acid is a natural, plant-derived surfactant produced through the saponification of renewable vegetable oils, including coconut, soybean, and sunflower oil. As a sustainable alternative to synthetic chemical surfactants, it has gained wide popularity in food, cosmetic, and daily chemical industries for its safety, mildness, and eco-friendly properties. Different from petroleum-based ingredients, its raw materials are renewable, making it a core material for green and clean formulations.
    This natural compound possesses excellent emulsifying, foaming and dispersing capabilities. It can effectively reduce the surface tension of liquids, enabling stable mixing of oil and water components. It creates fine, rich and long-lasting foam in both cold and warm water, ensuring reliable cleansing performance. Meanwhile, it features extremely low skin irritation and high biological compatibility, which makes it suitable for sensitive skin care products and mild daily detergents.
    The most prominent strength of vegetable-based sodium fatty acid lies in its environmental sustainability. It can be completely biodegraded in soil and water without leaving harmful chemical residues. It causes no damage to aquatic ecosystems and complies with global environmental protection and clean-label standards. In food processing, it also serves as a safe food additive that improves texture and prevents ingredient agglomeration.
    With the growing global demand for eco-friendly and healthy products, vegetable-based sodium fatty acid has become an indispensable green raw material. It perfectly balances functional performance, user safety and environmental protection, and will continue to promote the upgrading of sustainable manufacturing across multiple industries.

    Plastic-Deodorant

  • AC vs DC vs EC Cross Flow Fans: Control, Efficiency & Where Each Fits

    The same fan architecture, but very different control capabilities

    Cross-flow fans, also known as tangential fans, typically use a long cylindrical impeller. Air enters the impeller radially, passes across its interior, and then flows through the blades a second time before being discharged. This creates a broad, relatively uniform airflow pattern across the length of the fan.

    Their low-profile design makes cross-flow fans well suited to applications where installation space is limited but a wide air outlet is required. Typical uses include air curtains, fan coil units, heating appliances, terminal HVAC equipment, refrigerated display cases, and selected electronics-cooling systems.

    Cross-flow fans are generally used in applications requiring relatively high airflow at low pressure. Their actual aerodynamic performance, however, depends not only on the motor but also on impeller length, tongue clearance, inlet and outlet geometry, and the overall resistance of the host equipment.

    AC, DC, and EC cross-flow fans differ in power supply, speed-control capability, and ease of system integration. Strictly speaking, however, these are not three fully parallel motor classifications. AC and DC mainly describe the input power supply, while EC refers to electronic commutation. Many low-voltage brushless DC fans therefore also use electronically commutated motors in principle.

    In practical fan selection, the industry commonly uses “AC fan” for conventional motors connected directly to an AC supply, “DC fan” for low-voltage direct-current products, and “EC fan” for electronically controlled permanent-magnet solutions, often designed for direct connection to AC mains. This article follows that widely used convention.

    AC cross-flow fans: straightforward control for stable operating conditions

    AC cross-flow fans are normally powered directly from an alternating-current supply. Common motor types include shaded-pole motors, permanent-split-capacitor motors, and other AC induction-motor designs.

    Their mechanical and electrical configurations are well established. For equipment that only requires on/off operation, a fixed speed, or a small number of preset speed levels, the overall system can remain relatively simple.

    AC fans are not necessarily limited to one speed. Depending on the motor and product design, some single-phase AC motors can use tapped windings, transformers, series capacitors, or voltage-control methods to provide stepped speed adjustment. Compatible three-phase motors may also be controlled by a variable-frequency drive.

    These methods can affect motor temperature, available torque, and acoustic performance. Their suitability should therefore be confirmed against the motor specification and through testing of the complete appliance.

    For entry-level air curtains, heating appliances, and air-circulation equipment that operate for long periods at a stable duty point, an AC solution may still be a practical choice. Its main advantages are fewer control components and a relatively straightforward initial configuration—not universally lower cost or higher efficiency under every operating condition.

    When an application requires frequent airflow adjustment or prolonged operation at low speed, a conventional AC control arrangement may offer a limited control range. It may also experience changes in low-speed torque or electromagnetic noise. These effects vary by motor design, so AC fans should not be treated as though they all behave in the same way.

    AC cross-flow fans.jpg

    DC cross-flow fans: a natural fit for low-voltage systems

    DC cross-flow fans commonly operate from low-voltage supplies such as 12, 24, or 48 VDC, although the available voltage range depends on the specific design.

    Most modern DC fans use brushless motors with electronic commutation. This allows for compact construction, fast control response, and convenient integration with an equipment controller or main circuit board.

    In this context, “DC fan” is primarily a product and power-supply classification. It does not mean that DC and EC motors are fundamentally unrelated. A low-voltage brushless DC motor can also be electronically commutated. In practice, the main differences usually involve the input supply, where power conversion takes place, the available control interfaces, and the intended application platform.

    Depending on the model, a DC cross-flow fan may support speed control through a dedicated PWM input, an analog control signal, or adjustment of the supply voltage within the permitted operating range. Some models may also provide FG or tachometer feedback, alarm outputs, locked-rotor protection, or reverse-polarity protection.

    These functions should not be assumed to be standard across all products. The specification sheet and wiring documentation for the selected model must always be checked.

    Where the equipment already includes a DC bus or switch-mode power supply—such as in vehicle HVAC systems, electronic equipment, charging systems, or compact heating and cooling appliances—a DC fan is often easier to integrate into the electrical architecture.

    Where the host system is supplied only by AC mains, the efficiency, capacity, thermal management, and cable-voltage drop of the AC/DC power supply must also be included in the system assessment.

    EC fan.jpg

    EC cross-flow fans: designed for variable-speed operation and system integration

    EC stands for electronically commutated. In fan applications, an EC motor generally combines a permanent-magnet rotor, stator windings, and an electronic controller. The controller energizes the windings in sequence according to rotor position, creating the rotating magnetic field required to drive the motor.

    In an EC fan designed for direct connection to AC mains, the incoming AC supply is typically rectified to create a DC bus. Power electronics then control the motor. The motor, drive electronics, and control functions can be integrated into a compact assembly, so a separate variable-frequency drive is usually not required.

    The main value of an EC solution lies in its wide speed-control range and its ability to operate efficiently under part-load conditions. Fan speed can be adjusted in response to temperature, equipment load, or commands from the main control system, reducing unnecessary input power when full-speed operation is not required.

    Depending on the model, an EC fan may accept PWM, 0–10 V, 4–20 mA, or digital communication signals. It may also provide speed, operating-status, and fault feedback.

    Functions such as Modbus communication, RS485 connectivity, PID control, or constant-airflow operation are model-dependent or optional. They should not be presented as standard features of every EC cross-flow fan.

    For air curtains, fan coil units, and heating or cooling equipment that operate continuously, experience significant load variation, or need to communicate with a central controller, EC technology generally makes demand-based speed control easier to implement.

    The electronic section still requires careful attention to electromagnetic compatibility, ambient temperature, cooling, signal compatibility, and electrical protection. Fan selection should therefore not be based on rated airflow alone.

    Efficiency comparisons must be made at the actual operating point

    AC, DC, and EC cross-flow fans should not be compared only by motor nameplate efficiency or maximum airflow.

    The final performance of the system depends on the motor, power electronics, impeller, scroll or airflow guide, and the complete internal airflow path of the equipment.

    A more meaningful comparison is made under the same installation boundary conditions, at the same air density and operating point. Input power, airflow, pressure rise, and acoustic performance should all be measured under equivalent conditions.

    For cross-flow fans, airflow distribution along the full impeller length is also important. Restricted inlet sections, uneven internal geometry, or incorrect tongue clearance may cause airflow distortion, recirculation, and additional noise.

    The benefit of EC technology under variable-load conditions does not come from the motor alone. It also comes from the ability to reduce speed when full airflow is unnecessary.

    If a system always operates at one duty point, a properly matched AC or DC solution may still satisfy both performance and cost requirements. If the equipment spends long periods at part load or requires frequent airflow adjustment, an EC solution usually provides greater scope for system-level optimization.

    Where each option fits best

    An AC cross-flow fan is generally suited to equipment with an AC supply, relatively stable operating conditions, and limited control requirements.

    A DC cross-flow fan is a good fit for products that already have a low-voltage DC supply, limited installation space, and a need for integration with an electronic control board.

    A mains-powered EC cross-flow fan is typically better suited to applications with variable loads, continuous speed control, operating feedback, or communication requirements.

    Final selection should also account for target airflow, pressure requirement, impeller length, mounting orientation, inlet and outlet clearance, operating temperature, noise limits, supply voltage, and control interface.

    Choosing the correct motor type does not automatically guarantee the expected performance of the complete appliance. The match between the fan, impeller, housing, and airflow path remains equally important.

    For suppliers such as Blauberg, whose product portfolio includes fan, motor, and control technologies, technical discussions should go beyond a simple “AC or EC” comparison. The selected solution should be based on the actual duty point, available power supply, installation conditions, and control requirements.

    For any specific cross-flow fan, the final decision should always be confirmed against the relevant performance curves, wiring diagrams, and technical data sheet.

  • Types of Solar Mounting Structures and Their Application Advantages

    Solar mounting structures are core supporting components for photovoltaic systems, which fix solar panels stably and optimize their angle to capture maximum solar radiation. Reasonable selection of mounting structures directly affects the power generation efficiency, service life and overall safety of solar projects. According to installation scenarios and structural designs, mainstream solar mounting structures are mainly divided into four categories: ground-mounted, rooftop-mounted, carport and floating solar brackets.
    Ground solar mounting structures are the most widely used type, suitable for large-scale photovoltaic power stations on open lands, hills and wastelands. Made of high-strength aluminum alloy or galvanized steel, they feature strong wind and snow resistance and adjustable installation angles. This structure boasts high stability and easy maintenance, perfectly adapting to large commercial and industrial solar projects with long service life.
    Rooftop mounting structures are customized for residential and factory building roofs, including tiled roof and flat roof brackets. They are lightweight, space-saving and will not damage the original building structure. With flexible installation layout, they are ideal for distributed solar power generation, helping users make full use of idle roof space to reduce electricity costs.
    Solar carport structures integrate power generation and parking functions. They not only stably support solar panels to generate clean power, but also provide sunshade and rain protection for vehicles. It is a cost-effective dual-purpose solution, widely applied in community, enterprise and commercial parking lots.
    Floating solar mounting structures are designed for water surfaces such as reservoirs and lakes. The corrosion-resistant floating materials ensure stable operation on water, saving precious land resources. In addition, water cooling can reduce panel temperature and effectively improve solar power generation efficiency. All types of our solar brackets support standardized mass production and customized design to meet diverse project demands worldwide.

    Types-of-Solar-Mounting-Structures

  • An In-depth Study on Fatty Acid Sodium Salt: Structure, Traits and Uses

    Fatty acid sodium salt, commonly known as sodium soap, is a typical anionic surfactant formed by the neutralization reaction between fatty acids and sodium hydroxide. It is generally produced through the saponification of natural animal and plant fats or the direct acid-base neutralization of pure fatty acids, representing one of the most widely used organic salt compounds in daily life and industrial production.
    The most distinctive feature of fatty acid sodium salt is its amphipathic molecular structure. Each molecule contains a hydrophilic sodium carboxylate head and a hydrophobic long-chain hydrocarbon tail. This unique structure enables it to bridge oil and water, effectively dissolving grease and dirt that cannot be removed by pure water alone. Its physical properties vary with the length of the alkyl chain; longer carbon chains enhance its cleaning and thickening performance, while shorter chains improve its water solubility and foaming ability.
    With excellent emulsifying, decontaminating, foaming and wetting properties, fatty acid sodium salt has diverse applications. Domestically, it is the core raw material of traditional hard soap, widely used in daily cleaning products. Industrially, it serves as an emulsifier and stabilizer in textiles, cosmetics and food processing. Food-grade fatty acid sodium salt acts as a safe additive to maintain the stability of mixed ingredients in baked goods and seasonings.
    In addition, this compound is environmentally friendly and fully biodegradable in natural environments, causing little pollution to water and soil. Thanks to its low irritation, stable performance and renewable raw materials, fatty acid sodium salt remains an indispensable and cost-effective chemical material in modern daily chemicals and light industry.

  • 52S ESS Cold Plate for Reliable Energy Storage Thermal Management

    The 52S ESS Cold Plate is an aluminum liquid cooling component designed for standard 52S battery modules in containerized and commercial energy storage systems. It provides efficient thermal management to support stable battery operation and consistent cooling performance.

    Efficient Cooling Performance

    Manufactured using precision stamping and vacuum brazing, the 52S ESS Cold Plate features optimized internal flow channels that promote uniform coolant distribution and efficient heat transfer. Its low flow resistance helps improve cooling system efficiency under demanding operating conditions.

    Under specified test conditions, the cooling plate can achieve a temperature difference of below 2°C, helping reduce temperature variations across battery modules and supporting more consistent battery performance.

    Reliable Quality and Customization

    Each cooling plate undergoes strict pressure and leak testing to ensure product reliability and sealing performance. The compact structure is designed for integration with mainstream 52S battery packs, while nozzle positions, mounting holes, and surface treatments can be customized according to customer requirements.

    Trumony supports the development and mass production of aluminum liquid cooling components for energy storage applications. From prototype samples to volume production, we provide customized cooling solutions to meet different battery pack designs and thermal management requirements.

    52S-ESS-Cold-Plate.jpg

  • Camlock Fitting Size Guide: How to Choose the Right Size

    Choosing the correct Camlock fitting size is essential for creating a reliable fluid transfer connection. A fitting that is too small can restrict flow and increase pressure loss, while an incorrectly matched hose and coupling can lead to leakage, poor performance, or premature component failure.

    Camlock fittings, also called cam and groove couplings, are commonly available in standard nominal sizes such as 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 3″, 4″, 5″, and 6″. However, selecting a Camlock fitting is not simply a matter of choosing the same number printed on a hose or pipe.

    In this guide, we explain how Camlock fitting sizes work, how to measure a hose correctly, and what you should consider before ordering a Camlock coupling.

    What Does Camlock Fitting Size Mean?

    The size of a Camlock fitting normally refers to its nominal connection size. For example, a 2-inch Camlock coupling is generally designed for a 2-inch nominal hose or piping system.

    However, nominal size does not necessarily equal the actual outside diameter of the fitting, hose, or thread.

    For example, a 2-inch hose may have an approximately 2-inch internal diameter while its outside diameter is considerably larger because of the hose wall thickness.

    Therefore, when selecting a Camlock coupling, it is important to understand the difference between:

    • Nominal size
    • Hose inside diameter
    • Hose outside diameter
    • Thread size
    • Actual fitting dimensions

    Common Camlock Fitting Sizes

    The most common Camlock coupling sizes include:

    Nominal Size Typical Application
    1/2 inch Small fluid transfer lines
    3/4 inch Water, chemical and utility lines
    1 inch General industrial fluid transfer
    1-1/4 inch Medium-flow applications
    1-1/2 inch Industrial hose systems
    2 inch General-purpose industrial transfer
    3 inch High-flow water, chemical and industrial systems
    4 inch Large-volume fluid transfer
    5 inch Large industrial systems
    6 inch High-volume transfer applications

    The exact available sizes depend on the fitting type, material, manufacturer, and applicable standard.

    Stainless Steel Camlock Couplings

    How to Choose the Correct Camlock Fitting Size

    1. Measure the Hose Inside Diameter

    For hose applications, the inside diameter (ID) is one of the most important measurements.

    Measure the internal opening of the hose rather than measuring only its outside diameter.

    For example:

    • Approximately 1-inch ID hose → consider a 1-inch Camlock
    • Approximately 2-inch ID hose → consider a 2-inch Camlock
    • Approximately 3-inch ID hose → consider a 3-inch Camlock

    However, always check the hose manufacturer’s actual dimensions before ordering.

    1. Check the Hose Outside Diameter

    The outside diameter becomes particularly important when selecting the appropriate hose clamp, ferrule, or crimping system.

    Two hoses may have the same internal diameter but different wall thicknesses.

    For example:

    Hose A: 2-inch ID with a relatively thin wall

    Hose B: 2-inch ID with a heavy-duty wall

    Both may use a 2-inch Camlock connection, but their outside diameters can be different.

    This means the fitting size and hose clamp dimensions should be selected independently.

    Aluminum Camlock Couplings

    1. Consider the Required Flow Rate

    Larger Camlock fittings generally provide a larger internal flow path.

    If the fitting is significantly smaller than the hose or piping system, it can create a restriction.

    This may result in:

    • Higher pressure drop
    • Reduced flow rate
    • Increased turbulence
    • Additional pumping requirements

    For high-flow applications, engineers should consider the complete flow path rather than selecting a fitting based only on hose size.

    1. Check the Pipe or Thread Size

    If your Camlock fitting connects to a threaded pipe, the nominal pipe size and thread specification must also be confirmed.

    Common thread specifications include:

    • NPT
    • BSP
    • BSPT
    • JIS
    • Other regional or customer-specific thread standards

    A fitting with the correct nominal size can still be unsuitable if the thread standard is incorrect.

    For example, NPT and BSP threads should not simply be treated as interchangeable.

    Camlock Size vs. Hose Size: Are They Always the Same?

    In many standard hose assemblies, the Camlock fitting nominal size is selected to correspond to the hose’s nominal internal diameter.

    However, this does not mean that every physical dimension will be identical.

    Consider a typical hose assembly:

    2-inch hose → 2-inch hose shank → 2-inch Camlock adapter → 2-inch Camlock coupler

    The nominal sizes are matched, but the actual dimensions of each component can vary.

    This is why purchasing decisions should consider the manufacturer’s dimensional drawings and specifications.

    How to Measure a Camlock Fitting

    If you already have a Camlock fitting and need to identify its size, measure several dimensions.

    Measurement 1: Connection Size

    Identify the nominal size marked on the product or packaging if available.

    Measurement 2: Hose Shank

    For hose-tail Camlock fittings, measure the hose connection area and compare it with the hose’s internal diameter.

    Measurement 3: Thread

    For threaded Camlock fittings, identify:

    • Thread type
    • Thread diameter
    • Thread pitch
    • Number of threads per inch where applicable

    Do not determine thread compatibility based solely on outside diameter.

    Measurement 4: Overall Dimensions

    For replacement or OEM applications, compare the complete dimensional drawing.

    Important dimensions may include:

    • Overall length
    • Coupling diameter
    • Shank diameter
    • Thread dimensions
    • Groove dimensions
    • Seal dimensions

    How Camlock Size Affects Flow

    The internal diameter of a coupling can influence system flow.

    A smaller flow passage can increase pressure loss, especially when:

    • Flow velocity is high
    • Fluid viscosity is high
    • The hose is long
    • Multiple fittings are installed
    • The system contains valves or other restrictions

    For water-transfer applications, a larger coupling may be appropriate when high flow is required.

    For chemical or petroleum transfer, however, flow requirements must be considered together with material compatibility, pressure, temperature, and hose construction.

    Choosing Camlock Size for Different Applications

    Water Transfer

    Common applications include:

    • Irrigation
    • Construction dewatering
    • Water treatment
    • Pump connections
    • Tank transfer

    The primary considerations are hose ID, flow rate, working pressure, and connection compatibility.

    Chemical Transfer

    Chemical applications require more than simply matching size.

    You should also confirm:

    • Chemical compatibility
    • Temperature
    • Pressure
    • Seal material
    • Hose construction

    A correctly sized fitting made from an incompatible material can still fail.

    Petroleum and Fuel Transfer

    For fuel and petroleum applications, consider:

    • Hose size
    • Flow requirements
    • Material compatibility
    • Seal compatibility
    • Pressure rating
    • Applicable regulations

    Agriculture

    Agricultural irrigation and spraying systems commonly use quick-connect hose couplings because equipment may need to be connected and disconnected frequently.

    Camlock Size Selection Checklist

    Before ordering a Camlock coupling, confirm the following:

    • Hose inside diameter
    • Hose outside diameter
    • Required flow rate
    • Working pressure
    • Operating temperature
    • Fluid or media
    • Camlock fitting type
    • Thread type, if applicable
    • Coupling material
    • Gasket or O-ring material
    • Required dimensional specifications

    What If You Cannot Find the Exact Size?

    Standard Camlock sizes cover many industrial applications, but some projects require customized solutions.

    Depending on the application, manufacturers may provide:

    • Special thread configurations
    • Custom hose shanks
    • Special materials
    • Non-standard dimensions
    • Custom seals
    • OEM configurations

    When requesting a quotation, provide the hose size, connection type, fluid, pressure, temperature, and required quantity.

    This gives the manufacturer enough information to recommend a suitable configuration.

    Frequently Asked Questions

    What is the most common Camlock fitting size?

    2-inch Camlock couplings are widely used in industrial fluid transfer, water handling, agriculture, and other general-purpose applications. However, the most appropriate size depends on the hose, flow rate, and system requirements.

    Is a 2-inch Camlock fitting exactly 2 inches?

    Not necessarily. “2 inch” normally refers to the nominal connection size rather than the exact outside diameter of every component.

    Should Camlock size match the hose ID?

    In a typical hose assembly, the nominal fitting size is generally selected to correspond with the hose’s nominal internal diameter. Always verify the actual dimensions and manufacturer’s specifications.

    Does a larger Camlock fitting provide more flow?

    A larger coupling can provide a larger flow path, but actual flow depends on the entire system, including hose diameter, length, fluid properties, pressure, valves, and other restrictions.

    Can I use different Camlock sizes together?

    Standard Camlock couplings are normally designed to connect within compatible nominal sizes and configurations. If different sizes are required, an appropriate reducer, adapter, or custom solution may be necessary.

    Conclusion

    Selecting the correct Camlock fitting size is an important part of designing a safe and efficient fluid transfer system.

    Do not choose a coupling based only on the number printed on the hose. Confirm the hose inside diameter, outside diameter, flow requirements, pressure, temperature, thread configuration, material, and sealing requirements.

    For demanding industrial applications, a dimensional drawing and complete product specification should always be checked before installation.