1. What is a blown film machine
What does a blown film machine do?  
As the name suggests, a blown film machine is a machine used for blowing films, which is a type of plastic production machinery. There are many types of blown film machines, such as PE, PC, PVC, and so on. By adding different types of particles, different types of films can be blown. These films can be made into various products such as greenhouse films, food packaging bags, express delivery bags, and so on.  
2. Type of film blowing machine
Here are some types of blown film machines: five-layer co-extrusion blown film machine, seven-layer co-extrusion blown film machine, nine-layer co-extrusion blown film machine, eleven-layer co-extrusion blown film machine, ABC three-layer co-extrusion, AB double-layer co-extrusion, single-layer, high-speed single-layer, mini high-speed single-layer, ABA three-layer co-extrusion, and double-head ABA
3. How does a film blowing machine work?  
What is the principle of blown film? Dry plastic particles are placed in a hopper, melted by heat, extruded, and then blown to form a film. How about the production efficiency of your blown film machine, and is it easy to operate? Different models have different production efficiencies, and the output depends on the chosen configuration. For example, adding an IBC internal cooling system can increase the output by 30-40%. Whether it is easy to operate also depends on the chosen configuration. So, blown film machines have a lot of uncertainties, and each component can determine the ease of operation of the machine. For example, manual quick screen changing in the screen changer is the most convenient and labor-saving method. This device does not require downtime, and manual operation to change the screen can complete the operation.
 How long can your film blowing machine work continuously? The film blowing machine can operate continuously without stopping, except for maintenance periods. If maintenance is not considered, it can work continuously. Do you know what are the main components of the film blowing machine? The main components of the film blowing machine include a motor, a frequency converter, a reducer, a screw, a screen changer, a mold, an air ring, a bubble stabilizing frame, a herringbone plate, an upper traction device, an upper rotating device, a winding device, a guide roller, and a corona device. Common problems during film blowing The most common problems during film blowing are uneven thickness of the film bubbles, wrinkles, poor transparency of the film, many fish eyes, unstable film bubble vibration, shark skin, and so on.
 4. What is the purpose of a blown film machine?  
Types and application fields of film blowing machines Film blowing machines have a wide range of applications, such as food packaging, logistics, medical structures, family farming, pharmacy, transportation, health, electronics, automation engineering, chemical engineering, and more.  
5. Raw materials that can be used in film blowing machines
What are the raw materials used in film blowing machines? Introduction to film blowing raw materials Plastic particles are divided into new materials and recycled materials. New materials include LDPE, HDPE, LLDPE, MLDPE, EVOH, PA nylon, and EVA. Recycled materials are divided into four categories: Category 1 and Category 2 are used for film blowing, while Category 3 and Category 4 are used for injection molding. 6. Configuration of film blowing machine What is film blowing corona treatment? Corona treatment devices are mostly used for products that require printing in the later stage and can eliminate static electricity. What is the film blowing winding device (traction device)? The function of the traction device is to pull the film upwards, which can control the film thickness and prevent air leakage from the film bubble. Next is the winding device, whose function is to roll the film into a coil
What is the blown film IBC system? The working principle of the IBC internal cooling system is to detect the film width through three ultrasonic probes, suck out hot air, blow in cold air, and quickly cool down the film bubble temperature.
Its functions include:
 (1) Control the size and width of the film bubble
(2) Cooling the interior of the membrane bubble
(3) Increase production by 30-40%
(4) Improve the brightness and toughness of the film
 (5) Replace the air inside the film bubble to eliminate odor. 7. What are the advantages of blown film extrusion? The method used by the blown film machine is blown film extrusion, which is a robust and efficient way to produce thin films. The produced films can be applied to most fields, including food, clothing, textiles, mushroom cultivation, daily necessities, and other civilian and industrial products for both internal and external packaging. Compared to traditional simple extrusion processes, blown film extrusion has many advantages.
 The film extruded by the blown film machine exhibits better strength and flexibility: the film produced by the machine is not only tensile but also more flexible and stronger, capable of adapting to various packaging designs with different shapes and specifications.
 ② Broader application areas: Due to the high quality of the blown film extruded, it can accommodate the production of most packaging, such as food, industrial, and agricultural films. Moreover, customized films can better suit the specific needs of the industry.  
③ Customized design makes applications more flexible: Manufacturers can customize films with specific requirements according to their desired film thickness, width, and performance. We can customize an exclusive blown film machine for the manufacturer based on their final product. 8. How to choose a blown film machine? There are many types of blown film machines available today. Choosing the right one can effectively improve production efficiency and create better value for you. Nowadays, customized machines are becoming increasingly popular. Tell me your needs, and I will help you select the most suitable machine for you!  1.  Customers who want to produce smaller sizes (such as supermarket bags, garbage bags, etc.) can choose a single-layer film blowing machine. Moreover, mini film blowing machines are affordable, have low maintenance costs, require minimal initial investment, and have a short payback period. Additionally, single-layer film blowing machines are relatively easy to operate and learn, reducing personnel learning costs.  
2. Currently, the market environment is placing increasing and more specific demands on packaging films. At this time, multi-layer co-extrusion blown film machines are needed. Our factory provides high-quality multi-layer co-extrusion blown film machines with three, five, or even up to eleven layers. Multi-layer blown film machines are generally equipped with advanced technologies such as IBC bubble internal cooling systems, ±360° horizontal upper traction rotation systems, photoelectric automatic correction devices, automatic thickness gauges, fully automatic winding and film tension control, and computer screen automatic control systems. Compared to equipment of the same model, machines equipped with advanced options offer advantages such as higher production, better product plasticization, uniform thickness, low energy consumption, and easy operation. They better solve problems such as uneven film thickness and uneven winding sizes, elevating the final film quality to a new level. Due to their good barrier properties, preservation, moisture resistance, frost resistance, oxygen barrier, and oil resistance, these films can be widely used in light and heavy packaging. For example, they can be used for various fresh fruits, meat products, pickled vegetables, fresh milk, liquid beverages, medical supplies, and more.
 9. Price of Film Blowing Machine The price of a film blowing machine is influenced by many factors, including materials, dimensions and specifications, production processes, and production technologies. In addition, the prices of various optional devices vary. Features such as IBC internal cooling devices, upper rotating devices, fully automatic thickness measurement systems, and automatic air rings can improve film quality and production capacity, but their prices will also increase accordingly. Besides configuration, brand is also an important factor determining price. Foreign brands tend to be more expensive than Chinese brands. As a manufacturer, we will choose configurations that suit our production needs based on an understanding of various factors. While ensuring quality, we will control costs and maximize production efficiency.  
10. Difference between Film Blowing Machine and Blow Molding Machine Many people who are new to the plastics industry cannot distinguish between a film blowing machine and a blow molding machine. It is important for beginners to understand the difference between the two. A film blowing machine is used to manufacture plastic films. After extruding the plastic, it is stretched and cooled by a tractor through a die head to obtain a tubular film. Manufacturers of plastic bags, agricultural films, and freshness bags generally purchase film blowing machines. A blow molding machine is generally used to manufacture containers. It inflates plastic containers such as bottle preforms in a mold to obtain the desired container. This is the main difference between a film blowing machine and a blow molding machine. You can purchase according to your own needs!