How to choose a PE blown film machine that suits your production needs?

As the core equipment for plastic film production, the technical level and market prospects of PE blown film machine directly affect the development of the plastic industry. With continuous technological innovation and market expansion, PE blown film machines will play a more important role in future plastic production. Meanwhile, the increasing demand for environmental protection and customization will also drive the PE blown film machine industry towards a greener and more intelligent direction.

Regularly clean the extruder, die, cooling air ring, traction device and other components to prevent the accumulation of plastic residue and dust from affecting equipment performance. Regularly lubricate the moving parts of the extruder, such as screws, bearings, and rollers of the traction device, to reduce wear and friction and extend the service life of the equipment. Regularly check the heater and thermocouple of the extruder to ensure stable and accurate heating temperature. When the heater is damaged or the thermocouple fails, it should be replaced in a timely manner.

How to choose a PE blown film machine that suits your production needs?

Clarify production requirements:

Film type: Determine whether to produce regular packaging film, composite film, shrink film, or other special types of film. For example, single-layer blown film machines can be selected for producing ordinary packaging films, while multi-layer co extrusion blown film machines are required for producing films with special functions such as barrier properties and freshness preservation.

Film width and thickness: Select a blown film machine that can produce the corresponding width and thickness based on the size specifications of the target product. If producing large width films, it is necessary to choose equipment with large width production capacity; When producing thinner films, attention should be paid to whether the blowing ratio of the film blowing machine meets the requirements.

Output requirement: Determine the required output based on the production scale, and then select the blown film machine with the appropriate extrusion volume. The larger the extrusion volume, the more film can be produced per unit time, and large-scale production should choose equipment with larger extrusion volume.

Assess equipment performance:

Temperature control: The heating system can accurately control and stabilize within the required temperature range, which is crucial for ensuring the quality and production efficiency of the film.

Pressure and speed control: Appropriate air pressure can ensure the uniformity of the membrane, and stable extrusion speed can help reduce product defect rates. Therefore, it is necessary to examine whether the air pressure and extrusion speed control of the equipment are accurate.

Automation level: Consider the degree of automation based on production scale and budget. High end models are equipped with functions such as automatic screen changing, automatic material suction, and inflatable shaft winding, which can improve production efficiency, reduce labor costs, and enhance product quality stability.

Evaluate the adaptability of raw materials: Different polyethylene raw materials, such as high-density polyethylene (HDPE), low-density polyethylene (LDPE), etc., have different requirements for blown film machines. It is necessary to confirm whether the density, melting point, heat resistance, and other factors of the raw materials match the selected equipment.

Consider energy consumption and environmental protection: prioritize selecting equipment with low energy consumption to save production costs and comply with environmental trends. You can understand the energy consumption indicators of the equipment, such as motor power, heating power, etc., and compare the energy consumption of different models.

Considering price and cost-effectiveness: The price of blown film machines varies depending on their configuration, specifications, and manufacturer. Before making a purchase decision, it is necessary to comprehensively consider factors such as equipment performance, brand reputation, after-sales service, and price, and choose products with high cost-effectiveness to avoid the high maintenance costs and production efficiency losses caused by purchasing low-priced and inferior equipment in the later stage.

Assessing brand and reputation: Choose well-known brands and manufacturers with good reputation, which usually have more guarantees in technology research and development, production processes, quality control, and after-sales service. You can learn about the strength and reputation of manufacturers through online searches, industry exhibitions, peer recommendations, and other methods.

Considering after-sales service: Various problems may occur during the use of the equipment, so good after-sales service is very important. Understand the manufacturer's after-sales service system, including whether it provides installation and debugging, operation training, technical consultation, and timely maintenance support services.

Extruder: The extruder is the core component of the PE blown film machine, responsible for melting and extruding polyethylene particles into tubular films. Extruders are usually composed of screws, barrels, heaters, and driving devices. Mold head: The mold head is the end component of an extruder, responsible for extruding molten plastic into a tubular film. The design and manufacturing of the die directly affect the thickness uniformity and surface quality of the film.

PE blown film machine can achieve continuous production, high production efficiency, and meet the needs of large-scale production. By adjusting parameters such as inflation ratio, cooling air volume, and traction speed, films of different thicknesses, widths, and properties can be produced to meet diverse application needs. Modern PE blown film machines adopt advanced energy-saving technologies such as variable frequency speed regulation and heat recovery, which can effectively reduce energy consumption and environmental pollution.