The structure of a film blowing machine is relatively simple, but its functionality and efficiency are crucial in plastic processing. In this article, we will explain the main components and working principle of a film blowing machine. The machine typically consists of several key parts, including the extrusion unit, die head, take-up device, cooling system, traction mechanism, and others. The extruder features a hopper for feeding raw materials, a Motor that powers the system, and a film reel for winding the final product. Belt drive is commonly used to transfer power efficiently. The screw die plays a vital role in the process, as it ensures uniform melting and distribution of the molten plastic. This high-quality design helps improve the output efficiency and overall performance of the machine. During operation, polyethylene pellets are first fed into the cutting device, which then feeds them into the extruder. As the machine operates internally, the pellets gradually melt and are formed into a tubular film through the die head. Once formed, the film is cooled, stretched, and finally wound onto a roll by the take-up device. This entire process is continuous and automated, making the film blowing machine ideal for large-scale production. Here are some specifications for two models: - **Model XY-55** - Material: LDPE - Extrusion Output: 5–25 kg/h - Blowing Bag Width: 50–480 mm - Film Thickness: 0.04–0.15 mm - Membrane Output Diameter: Φ550 mm - Screw Diameter: Φ55 mm - L/D Ratio: 28:1 - Electric Heating: 12 kW - Machine Power: 25 kW - Dimensions: 6000 × 1200 × 4100 mm - **Model XY-65** - Material: LDPE - Extrusion Output: 10–30 kg/h - Blowing Bag Width: 100–580 mm - Film Thickness: 0.04–0.15 mm - Membrane Output Diameter: Φ550 mm - Screw Diameter: Φ65 mm - L/D Ratio: 28:1 - Electric Heating: 15 kW - Machine Power: 30 kW - Dimensions: 6000 × 1200 × 4100 mm These machines are widely used in the production of plastic films for packaging, agriculture, and other industrial applications. Their reliability, ease of operation, and consistent quality make them popular choices in the industry. Whether you're looking for small-scale or high-volume production, there's a suitable model available to meet your needs.

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