News
-
High Torque Extruder Dominates the European Market
Recently, our independently developed high-performance High Torque Extruder has shown strong performance in the European market, with continuous sales growth, and has successfully occupied the high-end plastic modification and mixing markets in multiple countries. With excellent torque performance and stable operation, this equipment is widely used in various high demand production lines. In addition to the main product, the Economic Extruder and Lab Usage Extruder, which are launched as complementary products, have also been widely used in small and medium-sized enterprises and laboratory fields due to their high cost-effectiveness and flexible configuration. The company's main equipment, Twin Screw Blending Machine and Color Masterbatch Blending Line, further improve the overall solution and meet customers' diverse and personalized modification needs. In addition, our Single Shaft Shredder equipment is also exported synchronously and widely used in plastic recycling and pre-treatment processes, providing customers with one-stop production support. In the future, Our company will continue to deeply cultivate the European market, improve product performance and service quality, and promote the continuous expansion of Chinese intelligent manufacturing on a global scale.
2025 04/08
-
Characteristics of co rotating twin-screw extruder and basic principles of screw combination
There are many types of twin-screw extruders, among which the meshing co rotating twin-screw extruder is a widely used production and processing equipment in the plastic industry. This type of extruder is composed of two interlocking "building block" screws, a barrel, a power device, a temperature control device, etc. It can have multiple feeding ports and vacuum/non vacuum volatilization ports on the body. The main characteristics of a co rotating twin-screw extruder are as follows. (1) Two screws rotate in parallel and in the same direction, producing uniform shear between the contact area and the barrel, and the strength of this shear can be adjusted through screw combination, spacing design, and other means. (2) The geometric shape and co rotation of the screw block enable the screw to have good material distribution and mixing ability, making it suitable for mixing operations. After the material is softened in the material barrel, due to the opposite direction of the twin-screw at the meshing point, one screw needs to pull the material into the meshing gap, while the other screw pushes it out of the gap. Therefore, the material is transferred from one screw to the other screw here in an "∞" motion. This motion has a high relative velocity at the meshing point, which is very conducive to the mixing and homogenization of the material. The gap in the meshing area is small, and the speed of the threads and grooves at the kneading point is opposite, which has a high shear effect and achieves uniform plasticization. (3) The screw and barrel are both combined. There are many types of threaded components, including conveying components, kneading components, shearing components, reverse threaded components, and pressure boosting threaded components, each playing a different role. According to the needs of material processing, various components are combined together by building blocks, and through optimized design, they can adapt to the processing of various process formula materials. (4) The co rotating twin-screw extruder has reaction capability and is a dynamic reactor. After the material melts in the barrel, a series of chemical reactions such as polymerization and grafting can occur. Reactive extrusion processing is mainly used for polymerization reactions of monomers or oligomers (free radical polymerization, addition polymerization, condensation polymerization, and copolymerization reactions); Controllable crosslinking and degradation of polyolefins; Grafting modification of polymers (functionalization or polar functionalization of polymers to achieve material modification and preparation of compatibilizers); Forced blending modification of multiple materials. It also includes physical modification of materials, such as filling, mixing, toughening, and reinforcement. Basic principles of screw combination For a twin-screw extruder, the screw is mainly divided into a feeding section, a melting section, a mixing section, an exhaust section, and a homogenization section. Threaded components mainly include functions such as conveying, melting, shearing, material mixing, and residence time control. The threaded components of twin-screw extruders are assembled in a "building block" manner, and can be adjusted according to different production needs in practice. Therefore, screw combination is the key to customizing twin-screw extrusion processes. The co rotating twin-screw extruder is mainly used for mixing, and the screw combination should consider the performance and shape of the main and auxiliary materials, the feeding sequence and position, the position of the exhaust port, the temperature setting of the barrel, and so on. At the same time, the objects of mixing are very diverse, and reasonable screw combinations are required for each specific mixing process. However, the screw combination of the co rotating twin-screw extruder still has its basic rules to follow. The following are several basic principles of screw combination. (1) Large lead threads should be used at the feeding port to ensure smooth feeding. (2) Small lead threads should be used in the melting section to establish pressure, thereby compressing and melting the material. Kneading blocks with a misalignment angle of 90 ° can be set to balance the pressure, or kneading blocks with a misalignment angle of 30 ° can be used for preliminary distribution and mixing of the material. Kneading blocks should be set from the middle of the melting section, and attention should be paid to the spacing arrangement of kneading blocks. (3) In the mixing section, the main purpose is to shear, refine, and disperse material particles. The setting of threaded components in this section is very complex and requires designers to have rich practical experience. In this section, kneading blocks with staggered angles of 45 ° and 60 ° are mainly used to enhance shear, supplemented by special elements such as tooth shaped elements or "S" - shaped elements. However, it should be noted that there should not be too many kneading and shearing elements, nor should they be arranged too tightly to avoid excessive shearing. In addition, to enhance the conveying capacity of this section of material, threaded conveying elements should be installed at intervals, that is, the kneading block and the threaded conveying elements should be staggered from each other. (4) Reverse threaded components or reverse kneading blocks should be installed before the exhaust or vacuum port, large lead threaded components should be installed at the exhaust or vacuum port, and small lead threaded components should be installed after the exhaust or vacuum port. (5) In the homogenization section, the thread lead should be gradually reduced to achieve pressurization and reduce the length of the back pressure section. At the same time, attention should be paid to using single head threads and wide ribbed threads to improve the discharge capacity and avoid material spillage.
2023 11/22
-
The Growing Demand for Twin-Screw Extruders in Manufacturing
In recent years, twin-screw extruders have seen a surge in demand across multiple industries, from plastics and chemicals to food and pharmaceuticals. Known for their versatility, precision, and efficiency, twin-screw extruders are quickly becoming the preferred equipment for manufacturers seeking enhanced productivity and superior product quality. Key Advantages Driving Market Growth One of the primary reasons for the increased adoption of twin-screw extruders is their ability to handle complex formulations with ease. These machines allow for better control over mixing, compounding, and reactive extrusion processes, making them indispensable for producing high-performance materials. Compared to traditional single-screw extruders, twin-screw machines offer enhanced mixing capabilities, improved material feeding, and reduced processing times. This results in higher output rates and consistent product quality, which is crucial in sectors such as plastic recycling, where precision and efficiency are key. Applications Across Multiple Industries 1. **Plastics and Polymers**: Twin-screw extruders are widely used for compounding, blending, and recycling plastics. They provide manufacturers with the ability to fine-tune processes for producing high-quality polymer blends, masterbatches, and recycled plastics. 2. **Food Processing**: The food industry uses twin-screw extruders for applications such as producing snack foods, cereals, and pet food. Their precision allows for the creation of complex food textures and shapes while ensuring uniform cooking and mixing. 3. **Pharmaceuticals**: In the pharmaceutical industry, twin-screw extruders are essential for manufacturing drug delivery systems. The technology enables continuous production, offering greater scalability and consistency in dosage form production. 4. **Chemical Engineering**: For chemical processing, twin-screw extruders excel at mixing, dispersing, and reacting chemical compounds. Their flexibility allows them to process a wide range of materials with different viscosities and properties. The Future of Twin-Screw Extrusion Technology As industries continue to innovate and demand more efficient, environmentally friendly manufacturing processes, twin-screw extruders will play a crucial role in this evolution. Advances in automation, energy efficiency, and customization options are expected to further enhance the capabilities of these machines, solidifying their position in global manufacturing. In conclusion, the twin-screw extruder market is set to grow steadily, with increasing applications and technological developments paving the way for broader adoption. Whether it’s improving plastic recycling processes or revolutionizing food production, twin-screw extruders will remain at the forefront of industrial manufacturing.
2023 11/22
-
Color Masterbatch Compounding Line Revolutionizes Polymer Processing
The demand for vibrant, high-quality plastic products is driving innovation in the polymer industry, with the Color Masterbatch Compounding Line emerging as a game-changer. As manufacturers seek more efficient ways to produce color-enhanced plastics with consistent quality, this specialized compounding line is providing the solution, offering advanced capabilities for blending pigments and polymers seamlessly. Elevating Color Masterbatch Production The Color Masterbatch Compounding Line is designed to meet the growing demand for precise color matching and uniform pigment dispersion in plastic products. It allows manufacturers to create custom-colored masterbatches with exceptional accuracy, ensuring that the final plastic products meet the exacting standards of industries like packaging, automotive, electronics, and consumer goods. This compounding line is equipped with state-of-the-art technology that delivers superior mixing performance, allowing for even distribution of pigments and additives within the polymer matrix. This results in vibrant, consistent colors that enhance the aesthetic appeal and functionality of plastic products, even in large production runs. Key Features Driving Market Adoption 1. **High-Performance Mixing**: At the heart of the Color Masterbatch Compounding Line is its high-torque twin-screw extruder, which ensures efficient mixing of pigments, stabilizers, and polymers. This leads to superior pigment dispersion and prevents issues like color streaking or uneven shades in the final product. 2. **Customization Capabilities**: The compounding line allows for flexible production of masterbatches with customized colors, additives, and polymer types. Manufacturers can easily adjust formulations to meet specific client requirements, making the system highly versatile across various applications. 3. **Advanced Control Systems**: Equipped with intelligent automation and control systems, the compounding line ensures precise monitoring of extrusion parameters. This real-time control reduces the risk of process deviations, ensuring that each batch meets the desired specifications in terms of color, quality, and consistency. 4. **Energy Efficiency and Cost Savings**: Designed with energy-efficient motors and optimized screw configurations, the Color Masterbatch Compounding Line reduces energy consumption while maintaining high output levels. This helps manufacturers lower operational costs without compromising on quality or productivity. Applications Across Industries 1. **Packaging**: The packaging industry, where visual appeal is crucial, benefits significantly from color masterbatch compounding. This technology enables the production of vibrant, eye-catching packaging materials that stand out on shelves while maintaining consistency in large-scale production. 2. **Automotive**: In the automotive sector, color masterbatch compounding is critical for producing colored plastic components with UV resistance and other performance-enhancing properties. The compounding line ensures precision in color matching for both interior and exterior vehicle parts. 3. **Consumer Goods**: Manufacturers of consumer products, from toys to electronics, rely on high-quality color masterbatches to create visually appealing and durable plastic items. The Color Masterbatch Compounding Line offers flexibility in producing custom colors that meet brand-specific demands. 4. **Construction Materials**: For the construction industry, where colored plastics are used in various applications such as piping, siding, and roofing materials, this compounding line ensures that colors are not only aesthetically pleasing but also durable under different environmental conditions. The Future of Color Masterbatch Compounding As the global market for colored plastics continues to grow, the **Color Masterbatch Compounding Line** is set to play an increasingly important role. Ongoing advancements in extrusion technology and automation will further improve its capabilities, making the production of custom-colored masterbatches faster, more efficient, and more cost-effective. In conclusion, the Color Masterbatch Compounding Line represents a significant leap forward in polymer processing. Its ability to deliver precise, vibrant colors with unmatched consistency is transforming industries reliant on high-quality plastic products, positioning it as a cornerstone of future manufacturing processes.
2023 07/21
-
Say goodbye to the blockage of the underwater cutting die hole! Adjust three points to reduce downtime for cleaning.
Extruders are increasingly using underwater pelletizing to produce engineering polymers, including resins such as PET, nylon, and polycarbonate. These resins have "difficult" characteristics such as low viscosity and/or rapid cooling or high melt temperature. Compared with strip granulation, underwater granulation has the advantages of good particle quality, high degree of automation, and low cost. However, compared to less sensitive commodity resins such as polyethylene, polypropylene, or polystyrene, there is a greater risk of mold freezing when producing engineering resins such as those mentioned in the previous paragraph. Underwater pelletizers typically use circular dies with 10 to 20 or even hundreds of holes. The system can be designed for compounding anywhere from a few hundred to nearly 20000 pounds per hour. (Even larger pelletizers are used for extrusion production.) Reasons for mold hole freezing The diameter of the mold hole is usually 0.125 inches, but for smaller particles, it can be as small as 0.01 inches or as large as 0.20 inches. The output of each hole is approximately 25-100 pounds per hour, but the average output of a 0.125-inch mold hole is approximately 30 pounds per hour. The key to underwater granulation is to transport enough thermoplastic through the mold holes to keep the holes at the melting temperature of the resin, while the melt and mold head come into contact with water at a temperature several hundred degrees lower. Metal molds are excellent thermal conductors, so unless there is sufficient polymer flow through the mold holes, water will cool the holes and the polymer will solidify within them. However, the processor cannot immediately know that this blockage has occurred. The problem is that if one or more mold holes are blocked by polymer, the efficiency of the mold head will decrease. Ultimately, blocked holes will affect the flow of surrounding holes, resulting in larger and irregularly shaped finished particles and a decrease in yield. Ultimately, it is necessary to completely shut down the production line to clean the mold holes. The main reasons for mold freezing are as follows: improper starting sequence of polymer, water flow, and cutter operation; Insufficient heating and insulation of the mold, as well as process fluctuations. Not considering the material formula (resin, filler level, and filler type - heat absorbing or conducting) can also lead to problems. But you cannot change the recipe to please the granulator, it should be designed to run most recipes. Adjust the start-up process of the granulator Most mold hole freezing occurs during startup, when the resin, cooling water, and cutter must be started in the correct order. If the resin starts flowing through the mold and the tool engages before the water reaches the mold surface, it will cause smearing and resin blockage outside the holes of the water tank. If water reaches the mold surface before the polymer begins to flow, excessive cooling can cause the pores to freeze. In early underwater granulation systems, skilled operators manually controlled this sequence. Starting from the early 1990s, automation and control can be achieved through commercial PLC control systems. The polymer diversion valve and process water bypass system enable PLC to more accurately control the timing of polymer and water entering the mold. Granulators manufactured since the mid-1990s offer automatic cutting systems that use hydraulic, pneumatic, and servo motors to control cutting pressure. Therefore, today's fully automated systems can control the startup sequence in a fraction of a second. Optimize mold design Once the production line is started and running, most molds can be avoided from freezing by maintaining a very constant flow of material through the mold holes. But some freezing issues are related to the mold design itself. The mold is heated by a flashlight heater or hot oil. Electric heating will not be completely uniform because the ink cartridges are mainly placed in the ring around the mold holes, near the outer edge of the mold plate. Therefore, the holes around the outside of the die are often hotter than the holes in the center. The mold manufacturer once attempted to add a cylinder at the center of the mold, but the engineering proved to be clumsy Therefore, cylindrical heaters may not be suitable for large molds or materials with a narrow melting temperature range, such as nylon, which may tend to freeze in the center of the mold. Compared to cylindrical heaters, oil heating can apply more uniform heat over a larger area. The oil system is configured with up to eight mold zones. But oil heating is more expensive than cylindrical heaters. Oil heating is commonly used in high output production lines of resin manufacturers or large blending plants. Recently, it has been applied on smaller systems to achieve better temperature control. If the oil valve is blocked, the mold holes in the affected area of the mold will become colder and may freeze, but the rest of the mold will be fine. At the beginning, the output may not change. Similarly, like cylindrical heaters, the problem will manifest as defective particles. All chips have some type of insulation layer. Most molds use special plates attached in the middle of the mold surface. But the plate may loosen. Then the water flows behind them, cooling the molds and potentially causing freezing. Another insulation method is to use a "hollow" mold design with gaps containing vacuum. If it is not part of the original template design, it can be retrofitted onto most systems. Vacuum is a good insulator and cannot be damaged like solid insulation boards. Reduce process fluctuations Any type of extrusion process interruption or output fluctuation may cause freezing. For example, extruding recycled materials with low packing density can cause fluctuations in the output of the extruder, leading to inconsistent polymer flow and freezing of the mold holes in a random manner. Polymer melt pumps can be used to prevent these fluctuations and provide consistent die flow. The use of discontinuous skateboard type screen changers can also cause flow interruption and trap air, resulting in temporary loss of polymer flowing towards the mold holes. May cause random freezing of mold holes. The solution is to use a continuous screen changer, which can instantly replace dirty screens without interrupting the process or trapping air.
2022 12/13
-
KTD High Production Series Extruders Revolutionize Manufacturing Efficiency
The extrusion equipment market is buzzing with excitement as the **KTD High Production Series Extruders** set new standards in high-volume manufacturing. Known for their advanced design and cutting-edge technology, these extruders are fast becoming a go-to solution for industries demanding superior output, precision, and cost-effectiveness. Breaking New Ground in High-Volume Production The **KTD High Production Series** stands out for its ability to deliver exceptional production speeds without sacrificing product quality. These extruders are specifically engineered for high-output manufacturing, making them ideal for industries like plastics, packaging, and chemicals that require fast, continuous production lines. One of the defining features of this series is its high-efficiency motor and optimized screw design, which allows for smoother material flow and enhanced mixing. This results in reduced processing times and significantly higher throughput, enabling manufacturers to meet increasing market demands while maintaining consistent product quality. Key Features Elevating the KTD High Production Series 1. **Energy Efficiency**: The KTD series is designed with energy-efficient components that reduce power consumption by up to 20%. This not only lowers operational costs but also supports sustainability efforts in energy-intensive manufacturing sectors. 2. **Advanced Automation**: These extruders come equipped with intelligent control systems that allow for real-time monitoring and adjustment of extrusion parameters. This level of automation minimizes human error and ensures optimal processing conditions, maximizing output while maintaining precision. 3. **Modular Design**: The KTD High Production Series features a modular design that allows manufacturers to customize the machine based on specific production needs. Whether it's changing screw configurations or adding downstream equipment, the flexibility of this series ensures seamless integration into existing production lines. 4. **High-Precision Manufacturing**: The KTD extruders are built for precision, providing manufacturers with the ability to maintain tight tolerances and uniform quality across large batches. This is particularly important in applications such as plastic film, sheet extrusion, and complex profiles where accuracy is paramount. Diverse Applications Across Industries 1. **Plastics & Packaging**: With its high-output capabilities, the KTD High Production Series is ideal for producing plastic films, sheets, and profiles used in the packaging industry. Its speed and precision help manufacturers meet the growing demand for packaging materials while reducing production costs. 2. **Chemical Compounding**: The superior mixing capabilities of the KTD series make it a valuable asset in the chemical industry for compounding and blending various materials, including polymers and additives. 3. **Automotive**: In the automotive sector, where precision and consistency are critical, the KTD series enables the efficient production of complex plastic components and profiles, ensuring that manufacturers meet the industry's stringent quality standards. 4. **Building Materials**: The construction industry also benefits from the high production rate and reliability of the KTD series, particularly in producing materials like PVC pipes, profiles, and insulation sheets. The Future of Extrusion Technology As industries continue to evolve, the demand for high-output, energy-efficient extrusion equipment like the **KTD High Production Series** is set to grow. Innovations in automation and energy management are expected to further enhance the performance and sustainability of this series, making it a key player in the future of global manufacturing. In conclusion, the KTD High Production Series is pushing the boundaries of what’s possible in large-scale production. With its combination of speed, precision, and energy efficiency, this extruder series is poised to become a cornerstone for manufacturers looking to increase output, reduce costs, and maintain the highest quality standards.
2022 09/16
Loading ...
Total 6 News
