SHANGHAI FRANCOM ROTOMOLDING TECHNOLOGY CO.,LTD Company News

In today's industrial manufacturing field, rotoplastic mold design stands out with its unique flexibility, opening up a new path for product innovation and diversified production. Rotoplastic molding technology is especially suitable for processing large hollow products, and its key element - rotoplastic mold, shows extraordinary adaptability and creativity. The design flexibility of rotoplastic molds is reflected in many aspects.   From the shape point of view, whether it is a simple sphere, cylinder, or complex special-shaped structure, with deep cavity or inner products, can be easily achieved through the rotomolding process. This feature greatly expands the designer's creative space and meets the market's demand for personalized and customized products. Rotoplastic molds also have a high degree of flexibility in material selection. At present, the domestic rotoplastic mold mainly uses steel plate welding die, cast aluminum and forged aluminum CNC processing three types. These materials have their own characteristics, steel plate welding die is strong and durable, suitable for large-scale production; Because of its good thermal conductivity and lightness, cast aluminum and forged aluminum molds can better ensure the quality and fineness of rotoplastic products, especially in the case of high temperature control requirements during the molding process. Designers can flexibly choose the most suitable mold materials according to the specific needs of the product. The design of the rotoplastic mold also allows for flexible changes in product color. Compared with the traditional injection molding process, the color change of rotonized products is more convenient, there is no need to replace expensive molds, and only need to adjust the pigment formula to achieve different color effects. This feature makes rotoplastic products more attractive in appearance and can meet consumers' needs for color diversity. In addition to the above features, the rotomolding mold also supports personalized surface treatment.   By simulating surface effects such as patterns, wood or metal textures, rotomized products can present a more unique and high-end appearance, thereby increasing the added value of the product. In practical applications, the flexibility of the rotoplastic mold has also been widely verified. The feasibility and effectiveness of rotoplastic mold design are fully proved. At the same time, many successful cases of rotoplastic products have further demonstrated the application potential of rotoplastic molds in different fields. Rotoplastic mold design brings new opportunities for industrial manufacturing with its unique flexibility. It not only meets the market demand for personalized and diversified products, but also improves production efficiency and product quality. With the continuous progress of technology and the continuous expansion of applications, it is believed that rotometer mold design will play a greater role in the future and inject more vitality and innovation into industrial manufacturing.                                                                                                                                                                                                                                                                                                                2025.3.20

  In today's rapidly developing manufacturing industry, product appearance and quality are equally important, in order to meet these needs, an advanced technology called in-mold Decoration (IMD) came into being, it not only improves production efficiency, It also greatly improves the beauty and durability of the product.   Rotational molding, also known as rotational molding, loads quantities of powdered resin into a cold mold and slowly rotates the mold around two perpendicular axes while heating the mold with an external heat source to melt the powder and spread it evenly across the inner surface of the mold. This process ensures consistency and high quality of the product. Combining in-mold decoration technology and rotoplastic molding technology, the technology of in-mold transfer of rotoplastic mold came into being.   This technology is particularly suitable for products that require multi-color printing and brand identity, such as auto parts and home appliance housings. By marking the rotoplastic mold and using the in-film paste technology, the LOGO color conversion problem can be perfectly solved, and the brand image and market competitiveness can be enhanced. The advantages of in-die transfer technology are obvious. It can achieve a consistent color pattern on the three-dimensional product surface, especially suitable for a variety of curved, curved and inclined surface decoration needs. Compared to traditional methods such as thermal transfer, direct surface printing, spraying, electroplating or two-color injection molding, in-mold decoration technology is more efficient and environmentally friendly. Its application can not only improve production efficiency, but also reduce material waste and environmental pollution, in line with the concept of modern green manufacturing. In practical applications, the in-die transfer technology of rotoplastic mold shows high flexibility and adaptability. Complex patterns, whether monochromatic or multi-colored, can be presented perfectly through this technology. Especially in the production of brand logos, in-mold transfer can ensure that each product has a consistent color and pattern, thereby enhancing brand recognition and market influence. The emergence of in-mold transfer technology for rotomolding has brought a revolutionary change to the manufacturing industry. It not only improves the quality and aesthetics of the products, but also meets the needs of the market for personalization and branding. With the continuous progress of technology and the expansion of application scope, in-mold transfer technology will certainly play a more important role in the future manufacturing industry, bringing more innovation and possibilities to all walks of life.

Different types of rotational molding machine, its mold bracket structure are also different.Common mould bracket has box type, the disc spider web.Rock and roll machine and large direct fire type machine mould bracket is not the same, that is a kind of similar to a structure of concrete mixer.Today we want to say to is a small plastic mold on the general rolling machine of installation method.Plastic mold of mould bracket is installed on whether proper to directly affect the quality plastic products.It is also important content plastic part of the process can not be ignored.    1. Choose for rotational mold.On the same rotomolding machine, if the conditions permit (with a sufficient number of the same mold), had better choose the same type of mold;If you want to produce different types of other products at the same time, the rotational mould when trying to choose to install the mold size, the weight difference is not too wide, thickness of the plastic products requirement basically consistent.Lest appear product ageing degradation or the phenomenon of residual plastic powder.Because the plastic mold production of different required processing cycle is different. 2.Rotational mould installation distance. A mold on the bracket to install how many mould, the compute first of all, to leave enough distance between mold, in order to avoid each other shade, conduction of hot air, also easy to open mold, mold clamping. 3. The mould bracket the center of gravity of the master.It is important to note that if the bracket light, while heavy rotational molding machine rotation will be affected, light products thickness, serious when, can damage roll machine. 4. Pay attention to the diameter of the rotomolding machine have oven, to calculate the rotary mould installation range, otherwise it will bring adverse consequences. 5. Also fixed rotational mould.Mould installation should not only consider soundness is also the speed of the installation, should remove.  

Rotational moulding, known also as rotomolding or rotocasting, is a process for manufacturing hollow plastic products. For certain types of liquid vinyls, the term slush molding is also used. Rotational molding has particular advantages in terms of relatively low levels of residual stresses and inexpensive molds. Rotational molding also has few competitors for the production of large (> 2 m3) hollow objects in one piece. Rotational molding is best known for the manufacture of tanks but it can also be used to make complex medical products, toys, leisure craft, and highly aesthetic point-of-sale products. The process begins with specially developed and uniquely applied resins. They can include plastisols, polyethylene, polycarbonate, acetate butyrate, polyamide, elastomers, polyurethane, polypropylene, ethylene vinyl acetate and fluorocarbons. Some of the most advanced work is being done with cross-linked polyethylene and even nylon. The principle of rotational molding of plastics is simple. Basically the process consists of introducing a known amount of plastic in powder, granular, or viscous liquid form into a hollow, shell-like mold.The mold is rotated and/ or rocked about two principal axes at relatively low speeds as it is heated so that the plastic enclosed in the mold adheres to, and forms a monolithic layer against, the mold surface. The mold rotation continues during the cooling phase so that the plastic retains its desired shape as it solidifies. When the plastic is sufficiently rigid, the cooling and mold rotation is stopped to allow the removal of the plastic product from the mold. At this stage, the cyclic process may be repeated. The basic steps of (a) mold charging, (b) mold heating, (c) mold cooling, and (d) part ejection are shown in Figure below.

March 17, 2025, 16:32 — Rotational molding is a unique plastic processing technique that has been widely used across various industries in recent years. To better understand its application value, this article provides a comprehensive analysis of rotational molding from both advantages and disadvantages perspectives. I. Advantages of Rotational Molding Flexible design with diverse products: Rotational molding can produce complex-shaped, structurally varied hollow plastic items, meeting the personalized needs of different products. Low mold cost and short development cycle: Compared to other plastic processing techniques, the mold-making cost for rotational molding is lower, and the development cycle is shorter, making it suitable for small-batch, multi-variety product production. Uniform wall thickness and minimal stress concentration: During the rotational molding process, plastic powder or liquid evenly adheres to the inner surface of the mold, resulting in uniform wall thickness and minimal stress concentration, which enhances product stability. High material utilization and minimal waste: The rotational molding process generates almost no waste, leading to high material utilization and compliance with environmental requirements. Production of large items: Rotational molding is not limited by equipment size, allowing the production of large plastic items such as large containers and amusement facilities.   II. Disadvantages of Rotational Molding Longer production cycle: Rotational molding involves multiple steps like heating and cooling, resulting in a relatively long production cycle, making it unsuitable for mass and rapid production. Limited surface precision: Compared to injection molding and other processes, the surface precision of rotational molding products is relatively low, making it difficult to meet the demands of high-precision products. Restricted material selection: Not all plastic materials are suitable for rotational molding; commonly used materials include polyethylene and polypropylene. High equipment investment cost: Rotational molding equipment is relatively expensive, posing a significant initial investment challenge for small enterprises. Higher energy consumption: The rotational molding process requires heating and cooling, leading to higher energy consumption, necessitating energy-saving measures to reduce costs.   III. Conclusion Rotational molding, as a unique plastic processing technique, offers advantages such as flexible design, low mold cost, and uniform wall thickness, but also has drawbacks like longer production cycles and limited surface precision. Enterprises need to consider various factors, including their product characteristics and production needs, to choose the most suitable processing method. Future Prospects: With continuous technological advancements, the rotational molding process is evolving. For example, developing new rotational molding materials, optimizing production processes, and improving production efficiency will further enhance the application value of rotational molding and expand its application areas.

On March 17, 2025, at 16:29 — As the global economy recovers and technology continues to advance, the rotational molding market in 2025 is showing some new growth trends, presenting opportunities for businesses while also posing challenges. I. Expansion into New Application Areas New Energy Vehicles: With the rapid development of new energy vehicles, there is a surge in demand for lightweight, corrosion-resistant plastic components, making rotational molding a promising technique for battery casings, charging station enclosures, and more. Medical Devices: Rotational molding can produce complex-shaped, smooth, and sterile medical devices such as medical containers and prosthetics, offering vast potential in the healthcare sector. Environmental Equipment: The process can be used to manufacture large-scale environmental equipment like wastewater treatment systems and exhaust gas treatment units, aligning with environmental policies and experiencing strong market demand.   II. Technological Innovation Drives Industry Upgrades High-performance Material Applications: The use of advanced engineering plastics and bio-based materials will enhance the performance of rotational molded products and expand their application areas. Smart Manufacturing: Technologies such as automated production lines and intelligent control systems will boost production efficiency, reduce costs, and improve product quality. Green and Environmentally Friendly Processes: Developing eco-friendly rotational molding materials, optimizing production processes, and minimizing waste emissions will be key directions for industry development.   III. Changes in Market Competition Landscape Accelerated Industry Consolidation: Large enterprises are expanding their market share through mergers and acquisitions, increasing competitive pressure on small and medium-sized companies. Regional Market Differences: The Asia-Pacific region is expected to become the fastest-growing area for the global rotational molding market, while markets in Europe and America are relatively mature and growing slowly. Brand Development Trend: As competition intensifies, brand will become a crucial factor for companies to capture market share. IV. Coexistence of Challenges and Opportunities Fluctuating Raw Material Prices: Volatility in plastic raw material prices poses challenges for cost control. Increased Environmental Pressure: Stricter environmental regulations require companies to increase environmental investments and develop green products. Talent Shortage Issue: Rapid industry growth has led to a shortage of specialized talent, necessitating enhanced training

How to choose a right rotational molding machine?   Rotational molding is a unique plastic forming process widely used for manufacturing large, hollow plastic products such as tanks, hulls, and amusement equipment. With growing market demand and technological advancements, selecting the right rotational molding machine has become increasingly important. This article provides an in-depth guide to help you choose the most suitable equipment from various options. 1. Basic Principles of Rotational Molding Rotational molding involves placing plastic powder into a mold, then rotating and heating it until the plastic melts and evenly coats the interior surface of the mold, finally cooling to form the product. This process is capable of producing large, hollow, and complex-shaped products. 2. Main Types of Rotational Molding Machines Rotational molding machines are primarily categorized as follows: Single-arm rotational molding machine: Suitable for small to medium-sized products, easy to operate, and requires minimal space. Double-arm rotational molding machine: Suitable for medium-sized products, offering higher production efficiency. Multi-arm rotational molding machine: Suitable for large products, capable of handling multiple molds simultaneously to increase efficiency. Vertical rotational molding machine: Suitable for high products like vertical tanks. 3. Key Factors in Choosing Rotational Molding Machines When selecting a rotational molding machine, consider the following key factors: Production capacity: Choose a machine that meets your production needs. For instance, if you need to produce large quantities of small to medium-sized products, a double-arm rotational molding machine might be suitable. Product size: Select the appropriate machine type based on the maximum size of the product. For large tanks, a multi-arm or vertical rotational molding machine may be necessary. Number of molds: If you need to handle multiple molds at once, opt for a multi-arm rotational molding machine to boost efficiency. Heating system: The heating system significantly impacts product quality and production efficiency. Common heating methods include electric and gas heating. Consider energy costs and environmental requirements when choosing. Control system: Advanced control systems enhance production efficiency and product quality. Machines with automated control features can precisely regulate temperature and speed. Brand and after-sales service: Opt for reputable brands with comprehensive after-sales support to ensure smooth operation and reduce maintenance costs. 4. Technical Parameters of Rotational Molding Machines When purchasing a rotational molding machine, pay attention to the following technical parameters: Maximum mold size: Indicates the largest mold size the machine can handle. Maximum rotation speed: Specifies the highest rotation speed of the machine. Heating power: Indicates the power of the machine's heating system. Cooling method: Refers to the machine's cooling system, commonly natural or forced cooling. Control system: Denotes the type of control system, such as PLC or touchscreen control. 5. Maintenance and Care of Rotational Molding Machines To ensure normal operation and extend the lifespan of rotational molding machines, regular maintenance and care are essential: Clean molds: After each production run, promptly clean the molds to prevent residue from affecting subsequent productions. Inspect heating system: Regularly check the heating system's operational status to ensure even heating. Lubricate moving parts: Regularly lubricate the machine's moving parts to minimize wear. Check electrical system: Regularly inspect the electrical system.

Global Rotational Molding Industry Analysis Report for 2025 and Future Trends Over the Next Five to Ten Years   As global manufacturing continues to evolve, rotational molding is increasingly showcasing its unique advantages and broad market potential. In particular, from 2025 onwards, the rotational molding industry is set to face new opportunities and challenges. This article provides a detailed analysis of the global rotational molding industry from aspects such as technological development, market size, and application areas. Rotational molding is a technique that involves heating molds and rotating them to shape plastic products. In recent years, this process has gained widespread use due to its cost-effectiveness, design flexibility, and suitability for mass production. Currently, global rotational molding technology is relatively mature, but there are still differences in its adoption and application across various regions. In developed countries like Europe and America, rotational molding is widely used in sectors such as automotive, medical, and construction, while the market in the Asia-Pacific region is rapidly expanding.   In terms of market size, the global rotational molding industry's market size is expected to exceed $10 billion by 2025. As one of the world's largest manufacturing nations, China's rotational molding industry is growing rapidly. According to the 'China Rotational Molding Industry Market Dynamics and Competitive Strategy Analysis Report 2023-2029', China's rotational molding industry will maintain steady growth over the next few years, with the market size reaching trillions of yuan by 2030. This growth is primarily driven by the demand for industrial upgrading and transformation, along with the increasing awareness of environmental protection.   Regarding technological development, future advancements in rotational molding will focus on optimizing and upgrading technologies. The application of automated production lines and intelligent control systems will significantly enhance production efficiency and product quality stability. For instance, incorporating robotic arms and smart monitoring systems can achieve full automation of the production process, reducing labor costs and improving product consistency. Additionally, material diversification is another crucial direction for the future development of rotational molding. The use of bio-based materials and biodegradable materials will reduce environmental impact, aligning with sustainable development trends. These new materials not only have excellent environmental performance but also meet the specific needs of different industries.   Apart from technological and material progress, the application areas of rotational molding are continuously expanding. Traditionally, rotational molding was mainly used for manufacturing large storage tanks and containers, but with continuous technological innovation, rotational molded products now extend to automotive parts, medical equipment, building materials, and more. For example, in the automotive industry, rotational molding can be used to produce lightweight high-strength vehicle body components, helping to reduce overall vehicle weight and improve fuel efficiency; in the medical field, rotational molding is used to manufacture various medical device housings and protective gear, meeting stringent hygiene requirements.   Looking ahead to the next five to ten years, the global rotational molding industry will continue to experience rapid growth. Technological innovation will be the core driving force behind industry development, while green and intelligent trends will become significant directions. Companies need to continuously improve their technological levels and innovation capabilities, actively explore new application areas and market spaces to cope with increasingly fierce competition. Meanwhile, governments should strengthen policy support.