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[Rui'an, March 2026] The 2026 China (Rui'an) International Printing & Packaging Industry Exhibition will be grandly held from March 17 to 19 at the Rui'an Convention & Exhibition Center (No. 111 Linhu Road). As a professional manufacturer in the printing and packaging machinery field, Rui'an Hengtuo Machinery Co., Ltd. will showcase its core products at this exhibition with booth number 1B05-06.     Exhibition at Industrial Base, Direct from Source   Featuring the theme "Exhibition at Industrial Base, Lock in the Source, Direct Access to Factory," this exhibition leverages Rui'an's cluster advantages as China's printing and packaging industry base to create an efficient platform for exhibitors and buyers. Hengtuo Machinery, rooted at the source of the industry, is committed to providing customers with cost-effective machinery equipment and solutions.   Main Products   Hengtuo Machinery specializes in the R&D and manufacturing of the following three categories of products: Air Bubble Film Machine — for producing various cushioning packaging materials Pelletizing Machine — plastic recycling and re-pelletizing equipment Stretch Film Machine — professional equipment for producing stretch wrap films The company's products are widely used in logistics packaging, industrial packaging, and other fields, winning market recognition with stable performance and quality service.   Sincere Invitation with Exclusive Benefits   To express gratitude for the support of our valued customers, Hengtuo Machinery has launched a special benefits program and sincerely invites industry professionals to visit: Unlimited free coffee and beverages on-site Free accommodation for 1-2 nights Exclusive exhibition center working meals   Exhibition Information   Item Details Exhibition Name 2026 China (Rui'an) International Printing & Packaging Industry Exhibition Date March 17-19, 2026 Venue Rui'an Convention & Exhibition Center (No. 111 Linhu Road) Hengtuo Booth 1B05-06 Contact 13362791939 (WeChat same number)   Welcome to scan the pre-registration QR code to sign up in advance, or call for more details. Rui'an Hengtuo Machinery Co., Ltd. looks forward to meeting you in Rui'an to seek common development and create brilliance together!   About Rui'an Hengtuo Machinery Co., Ltd. The company is a high-tech enterprise specializing in the R&D, production, and sales of plastic packaging machinery including air bubble film machines, pelletizing machines, and stretch film machines. Adhering to the business philosophy of "Quality First, Customer Supreme," the company continues to provide quality equipment and services to domestic and international customers.

[Shanghai, April 2026] Ruian Hengtuo Machinery Co., Ltd., a leading manufacturer of plastic packaging machinery, is pleased to announce its participation in Chinaplas 2026, the 38th International Exhibition on Plastics and Rubber Industries. The exhibition will take place from April 21 to 24, 2026, at the National Exhibition & Convention Center (Shanghai), PR China.     Visit Us at Booth 3D84   Hengtuo Machinery cordially invites all industry professionals, partners, and customers to visit our booth 3D84, where we will showcase our latest innovations and comprehensive range of plastic machinery solutions.   About Chinaplas 2026   As one of the world's premier exhibitions for the plastics and rubber industries, Chinaplas brings together global industry leaders, cutting-edge technologies, and business opportunities under one roof. The 2026 edition promises to be an exceptional platform for networking, knowledge exchange, and exploring the future of sustainable manufacturing.   Exhibition Details   Item Information Exhibition Chinaplas 2026 — The 38th International Exhibition on Plastics and Rubber Industries Date April 21–24, 2026 Venue National Exhibition & Convention Center (Shanghai), PR China Hengtuo Booth 3D84 Pre-registration Deadline April 17, 2026, 17:00 (GMT+8:00)   How to Register   Visitors are encouraged to pre-register for quick and convenient access: Quick Pass: Scan the QR code for fast entry Chinaplas iVisit: Download the official app for show information at your fingertips Pre-registration is available until April 17, 2026, at 17:00 (GMT+8:00).   About Ruian Hengtuo Machinery Co., Ltd.   Ruian Hengtuo Machinery Co., Ltd. is a professional manufacturer specializing in plastic packaging machinery, including air bubble film machines, pelletizing machines, and stretch film machines. With years of industry experience and a commitment to quality and innovation, Hengtuo Machinery has established itself as a trusted partner for customers worldwide.   We look forward to meeting you at Chinaplas 2026 and exploring how our solutions can drive your business forward!

With the increasing emphasis on environmental protection, plastic recycling has attracted more and more attention. It is not only a solution to plastic pollution, but also an important part of building a circular economy, which has far-reaching significance for the sustainable development of human society. Plastic recycling can effectively reduce greenhouse gas emissions. The production of virgin plastic requires a lot of energy and emits a large amount of carbon dioxide. In contrast, the production of recycled plastic can save more than 60% of energy, greatly reducing carbon emissions and helping to achieve the global "dual carbon" goal. This is crucial for mitigating global warming and protecting the Earth's climate. In terms of resource utilization, plastic recycling realizes the transformation of "waste into treasure". The granulator processes waste plastic into high-quality plastic granules, which have the same performance as virgin plastic granules and can be widely used in various fields. This not only reduces the waste of plastic resources, but also reduces the environmental pressure caused by plastic production, forming a virtuous cycle of resource utilization. Moreover, plastic recycling promotes the upgrading of the environmental protection industry. With the continuous development of the plastic recycling industry, more advanced recycling technologies and equipment (such as high-efficiency granulators) are constantly emerging, which not only improves the efficiency and quality of plastic recycling, but also drives the development of related industries, creating more opportunities for the green development of the society.

In daily life, we often throw away plastic products without thinking, but few of us realize that every piece of waste plastic can be turned into a valuable resource through recycling. Plastic recycling is not only a kind of environmental protection behavior, but also a way to realize resource reuse, which brings multiple benefits to individuals, society and the planet. For the environment, recycling plastic is an effective way to alleviate the "white pollution". Every year, a large amount of plastic waste is discarded into the natural environment, causing great harm to ecological systems. Recycling can reduce the number of plastic products in landfills and oceans, reduce the pollution of soil and water sources, and create a cleaner living environment for us. For resources, plastic recycling is a key measure to save non-renewable resources. Petroleum, the main raw material of plastic, is in limited supply. Recycling waste plastic can reduce the demand for new petroleum, extending the service life of petroleum resources. The granulator plays a core role in this process: it converts messy waste plastic into standardized plastic granules, which can be used to produce new plastic products, textiles, building materials and other products, realizing the cycle of "waste - raw material - new product". For individuals, participating in plastic recycling is a simple and meaningful way to practice green life. By classifying and recycling plastic waste in daily life, we can contribute our own strength to environmental protection, and at the same time, enhance the awareness of environmental protection, driving more people to join the ranks of plastic recycling.

Plastic has become an indispensable part of modern life, but its improper disposal has caused severe environmental problems. From plastic bags floating in the ocean to waste piling up in landfills, plastic pollution is eroding our living environment. Fortunately, plastic recycling provides an effective solution, bringing profound benefits to the planet and all living beings. First and foremost, recycling plastic significantly reduces environmental pollution. Unlike other wastes, plastic takes hundreds or even thousands of years to decompose naturally, which can poison soil and water, and endanger the lives of marine organisms. By recycling plastic waste, we can minimize the amount of plastic entering the natural environment, protecting the ecological balance of oceans, forests and grasslands. Resource conservation is another major advantage of plastic recycling. Plastic is mainly made from petroleum, a non-renewable resource. Recycling 1 ton of waste plastic can save about 7.4 barrels of oil, reducing the dependence on petroleum extraction. The granulator is an essential equipment in the recycling process: it processes scattered waste plastic into uniform plastic granules through crushing, melting and granulating. These granules can be reused as raw materials, realizing the circular utilization of resources and reducing the waste of limited resources. In addition, plastic recycling promotes the development of the green economy. It drives the formation of a complete industrial chain, creating a large number of jobs in recycling, classification, processing and other links. For enterprises, using recycled plastic granules as raw materials can reduce production costs while fulfilling social responsibilities, achieving a win-win situation between economic benefits and environmental benefits.

Due to its light weight and durability, plastic has long been integrated into every aspect of life. However, the accompanying plastic pollution has become a "white burden" threatening the Earth. Recycling plastic, though a simple act, can bring multiple values: it protects the environment, benefits you and me, and promotes sustainable development. The primary benefit of recycling plastic is protecting the ecological home. Plastic takes hundreds of years to decompose in the natural environment; random disposal pollutes soil and water sources, and harms animals and plants. Recycling and treatment can reduce the amount of garbage landfilled, prevent plastic fragments from entering oceans and forests, reduce damage to the ecosystem, keep the land cleaner and water sources clearer, and reserve living space for all creatures. Recycling plastic is the key to saving resources and realizing circular utilization. Most plastic raw materials are non-renewable resources such as petroleum. Recycling 1 ton of plastic can save about 7.4 barrels of petroleum, reducing resource consumption and environmental impact caused by petroleum extraction. The granulator plays a core role in this process: it crushes, melts and granulates the recycled waste plastic, processing scattered plastic garbage into uniform plastic pellets. These pellets can be used as recycled raw materials to produce new plastic products, fibers, building materials, etc., truly realizing "turning waste into treasure" and allowing limited resources to exert infinite value. Recycling plastic can also drive the green economy and reduce pollution emissions. The plastic recycling industry can create a large number of jobs, forming a complete green industrial chain from recycling and classification to processing. At the same time, the production of recycled plastic saves more than 60% of energy compared with virgin plastic, greatly reducing the emission of greenhouse gases such as carbon dioxide, helping to achieve the "dual carbon" goal and promoting the coordinated development of the economy and the environment. Small plastic bottles and bags can regain vitality after being recycled. Recycling plastic is not only a responsibility to the environment, but also an easy act to keep a green home for ourselves and future generations. Let us work together to participate in plastic recycling, practice a green life, and make every piece of waste plastic a force to protect the Earth.

Shanghai, China– Hengtuo Machinery, a leading manufacturer of stretch film and bubble wrap machines, made a significant appearance at the SWOP 2025 exhibition held in Shanghai. The event, which took place from November 12 to 15, 2025, is one of the premier platforms for packaging professionals worldwide.     At booth W2/W2P06, Hengtuo Machinery showcased its latest innovations in plastic packaging machinery. The company's main products include stretch film making machines, bubble film making machines, plastic recycling machines, and various other packaging equipment. These machines are designed to meet the growing demands of the e-commerce and logistics industries, offering superior packaging solutions that are both efficient and environmentally friendly.   Key Highlights of Hengtuo Machinery's Participation Innovative Technology: Hengtuo Machinery's machines are equipped with state-of-the-art technology that ensures high production efficiency and product quality. The company's bubble wrap machines, for example, use a one-time molding process to produce high-quality bubble wraps. Versatile Applications: The company's products are suitable for a wide range of applications, including e-commerce packaging, logistics, and industrial use. Hengtuo Machinery's machines can produce multi-layer bubble wraps and composite bubble wraps, which provide enhanced protection and durability for packaged goods. Commitment to Quality: Hengtuo Machinery is dedicated to continuous improvement and innovation. The company has passed international quality system certifications such as CE, CIQ, and ISO9001.   Future Outlook   Hengtuo Machinery looks forward to welcoming industry professionals and potential partners at future exhibitions. Our company is committed to providing excellent service and support, and is eager to explore new opportunities for collaboration and growth in the global market.  

In recent years, Ruian Hengtuo Machinery Co., Ltd. has successfully occupied an important position in the global market with its innovative capabilities and high-quality products in the field of plastic packaging machinery. The company produces a variety of equipment, including stretch film machines, plastic recycling machines, air bubble film machines, rewinding and slitting machines, bag making machines, and film blowing machines, which are widely welcomed in the international market due to their high efficiency, stability, and environmental friendliness.     Ruian Hengtuo Machinery's products have not only performed strongly in the domestic market, but also achieved significant sales growth in international markets such as Europe and America. For example, its stretch film manufacturing machine and bubble film manufacturing machine adopt advanced technology to ensure high quality and efficiency of the products. In addition, the company's plastic recycling machines are also favored by global customers due to their efficient recycling capabilities and environmental characteristics.   In addition, the company has also obtained international quality system certifications such as CE, CIQ, and ISO9001, further enhancing the international competitiveness of its products.   In the future, Ruian Hengtuo Machinery will continue to be committed to technological innovation and product quality improvement to meet the global market demand for efficient and environmentally friendly plastic packaging machinery.

The main unit of a plastic pelletizing machine is the extruder, which consists of a compression system, a transmission system, and a heating and cooling system. Solving the problem of low pelletizing rate and irregular particles is crucial to the production efficiency of the pelletizing machine and the economic benefits of the enterprise. Therefore, it is essential to master the solutions for low pelletizing rate and irregular particles in plastic pelletizing machines. Below, I will introduce how to address these issues based on the moisture content, fineness, and adhesiveness of the raw materials. Material Fineness: Coarse fibers in the material naturally lead to poor pelletizing effects, making the particles fragile and poorly shaped, with a rough appearance. The finer the material, the better the pelletizing effect, resulting in smoother particles. Material Adhesiveness: This is especially important for organic fertilizer pelletizing. Common raw materials include animal manure (such as pig, cow, chicken, sheep, and pigeon manure), straw (such as rice straw, corn stalks, and leaves), molasses, pharmaceutical residues, edible fungus residues, and monosodium glutamate by-products. These materials generally have poor adhesiveness, so it is necessary to add a certain amount of adhesive filler, such as bentonite. It is important to note that these fillers should be added in proportion. Moisture Content: Before pelletizing, the material is in a powdered form. To facilitate pelletizing, water must be added to bind the particles together. More water results in larger particles, while less water leads to smaller particles. This is a significant challenge for the skills of the pelletizing workers. Disk pelletizers require higher skill levels from operators, while drum pelletizers have lower skill requirements. These are the methods for solving the problem of low pelletizing rate in pelletizing machines. Have you understood them? If you want to learn more about plastic pelletizing machines, please continue to follow our website, where we will present more exciting content to you!

The working principle of a granulator is to press and shape granular raw materials through a mold. The processing of raw materials usually includes screening, mixing, adding water/oil, etc., and then sending them into a granulator. Under the action of the mold, as the top shaft and mold core rotate, the raw material is gradually compressed into small particles. By using different types of mold cores and pressure rollers, particles of different shapes, sizes, and densities can be produced.   For most granulators, the application industries include food, feed, fertilizers, etc. During the production process, the granulator must have good adjustability and stability to ensure that each particle produced meets the required specifications. In addition, attention should be paid to maintaining the lubrication system during use to prevent early wear of system components due to frictional effects.     High energy consumption: Granulators not only require a large amount of electrical energy, but also require a large amount of compressed air or hydraulic oil transmission devices.

Knowledge of maintenance and upkeep for bubble wrap machines   1. Before turning on the bubble wrap machine, check the power supply, vacuum system, air pressure system, and cooling system. After starting the device, check whether the rotation direction of each rotating component is correct. Pay attention to checking the lubrication condition regularly. Lubrication of parts should be maintained and serviced according to regulations for electrical instruments.   2. The bubble film machine equipment should be operated by a dedicated person, and the extruder screw should not run idle without material to avoid scratching the screw and barrel. After shutdown, if there is material in the hopper, before restarting, the temperature in each temperature zone needs to be raised according to the process requirements and maintained for more than 30 minutes before starting up. It is strictly prohibited to turn on the machine before the temperature reaches the required level. To avoid damaging machine parts.   3. When feeding the hopper of the bubble wrap machine, it is necessary to clean and prevent metal debris, sand, gravel, and small tools from entering the feeding port to avoid damaging the machine barrel and screw. If any abnormal noise is found during operation, the machine should be stopped immediately for handling.   4. The screw should be properly handled to prevent deformation when removed from the barrel of the bubble wrap machine due to unforeseen circumstances. If the barrel is not installed for a long time, the screw needs to be suspended vertically to prevent scratches, bending, and deformation after a long time. The surface of the barrel and screw should be coated with anti rust oil for protection.   5. The use, adjustment, maintenance, and upkeep of temperature controllers, electronic instruments, electrical switches, etc. should be carried out in accordance with regulations and product manuals.   6. In addition to daily maintenance, it is also necessary to regularly inspect the components of the bubble wrap machine. The mold head should be cleaned every three months, various bearings should have their lubricating grease replaced every three months, the gearbox should have its lubricating oil replaced every six months, and the equipment should undergo a comprehensive overhaul every two years.   Attention: Please carefully read the instruction manual of the bubble wrap machine before operating the equipment to understand the control and adjustment functions; Maintain vigilance and pay attention to safety; Pay attention to safety signs; Wear appropriate goggles; Wear appropriate protective clothing; Correctly and appropriately use maintenance tools; Do not directly contact high-temperature work or heating equipment, pay attention to the overflow of high-temperature melt; Pay attention to scratches on special parts; Proper maintenance and upkeep of equipment; The wires and power parameters used should meet the requirements. It is prohibited to connect the power supply during circuit maintenance; Prohibit limbs from entering equipment transmission and other parts that may cause harm to the human body; Equipment protection facilities should be returned after major repairs; Before powering on, ensure that the equipment is properly grounded.

How is the blowing process of bubble wrap machine operated?   How is the blowing process of bubble wrap machine operated?   The bubble film machine has a very important process, which is blown film. This article explains how the blown film process of the bubble film machine is operated.   During the blown film process, low-density polyethylene (LDPE) is in a molten state and has good transparency when extruded from the mold. After leaving the mold, the expansion zone of the film bubble needs to be cooled by a cooling air ring. When the cooling air is blown at a certain angle and speed towards the plastic film bubble just extruded from the machine head, the high-temperature film bubble comes into contact with the cooling air, and the heat of the film bubble will be carried away by the cooling air. Its temperature will significantly drop below the viscous flow temperature of low-density polyethylene (LDPE), causing it to cool, solidify and become blurry. On the blown film bubble, we can see a boundary between transparency and blurring, which is the dew point (or frost line).   The dew point has a certain impact on the film performance during the film blowing process of the film blowing machine. If the dew point is high and located above the inflated film bubble, the film is inflated in liquid state, and inflation only thins the film without stretching the molecules. At this point, the performance of the inflated film is close to that of a cast film. On the contrary, if the dew point is relatively low, the inflation is carried out in the solid state. At this time, the plastic is in a high elastic state, and the inflation is like transverse stretching, causing molecules to undergo orientation, thereby making the performance of the inflated film close to that of the oriented film.   Extruder temperature: When blowing low-density polyethylene (LDPE) film, the extrusion temperature is generally controlled between 160 ℃ and 170 ℃, and it is necessary to ensure uniform head temperature. If the extrusion temperature is too high, the resin is prone to decomposition, and the film becomes brittle, especially causing a significant decrease in longitudinal tensile strength; If the temperature is too low, the resin plasticization will be poor, and it will not be able to expand and stretch smoothly. The tensile strength of the film will be low, and the surface gloss and transparency will be poor, even resulting in patterns like wood rings and unmelted crystal nuclei (fish eyes).   Inflation ratio: Inflation ratio is one of the key control points in the production process of blown film, which refers to the ratio between the diameter of the film bubble after inflation and the diameter of the tube ring without inflation. The inflation ratio is the transverse expansion multiple of the film, which is actually a transverse stretching of the film. Stretching will have a certain degree of orientation effect on plastic molecules, increasing the inflation ratio and thus improving the transverse strength of the film. However, the inflation ratio should not be too high, otherwise it may cause instability of the film bubbles and the film is prone to wrinkling. Therefore, the inflation ratio should be appropriately matched with the traction ratio. Generally speaking, the inflation ratio of low-density polyethylene (LDPE) film should be controlled between 2.5 and 3.0.   Traction ratio: Traction ratio refers to the ratio between the traction speed of the film and the extrusion speed of the pipe ring. Traction ratio is the longitudinal stretching ratio that gives the film a directional effect in the pulling direction. As the traction ratio increases, the longitudinal strength will also increase, and the thickness of the film will become thinner. However, if the traction ratio is too large, the thickness of the film is difficult to control and may even break the film, causing the phenomenon of film breakage. The traction ratio of low-density polyethylene (LDPE) film is generally controlled between 4-6.   Dew point: Dew point, also known as frost line, refers to the boundary between the viscous flow state and the highly elastic state of plastic.

Bubble wrap machines produce bubble wrap from high-quality polyethylene resin and are a widely used packaging material. Due to the air-filled middle layer of the bubble wrap, it is lightweight, elastic, and has sound insulation, shock absorption, and wear resistance properties. First, bubble wrap machines can produce three-layer composite bubble wrap, which is a mark of high quality. The performance of bubble wrap machines is very stable and durable, resulting in higher efficiency. A single machine is equipped with both water cooling and air cooling. Water cooling can increase production efficiency and produce bubble wrap that is strong and transparent. It also ensures that the produced film is free of moisture. Bubble wrap machines use different embossing roll molds to produce a wide range of bubble sizes, from 6mm to 32mm. It features a flip-winding mechanism, which makes operation simple and quick. Bubble wrap machines are not selective about raw materials, such as low-density polyethylene (LDPE), LLDPE, and recycled plastics. The entire machine uses frequency conversion speed control, which effectively reduces energy consumption.     Bubble wrap machines mainly consist of five parts: the extruder, the electrical control cabinet, the forming machine, the traction machine, and the winding machine. The extruder is composed of a motor, reducer, screw, barrel, screen changer, mold, and heater. It is mainly responsible for melting, filtering, and extruding the raw materials. The electrical control cabinet consists of a temperature controller, electrical components, and a frequency converter. It is mainly responsible for the centralized electrical control of the entire machine. The forming machine is composed of forming rollers and a vacuum pump. The forming rollers come in three sizes (6mm, 10mm, and 28mm) and can be equipped according to customer requirements. The forming machine is mainly responsible for effectively shaping the molten material extruded from the mold into bubble wrap products, which is a very important step. The traction machine consists of traction rollers, a slitting device, and a film-guiding roller. It is mainly responsible for effectively pulling the bubble wrap from the forming rollers. The winding machine consists of two winding rollers, a flipping device, and a torque motor. It is mainly responsible for effectively winding the bubble wrap from the traction machine, forming it into coils, and then packaging it for storage. This is the final step in bubble wrap production.