What are the technical parameters of PE blown film machine?

PE blown film machine is an equipment used for producing polyethylene (PE) film, widely used in packaging, agriculture, construction and other fields. Understanding the technical parameters of PE blown film machines is crucial for selecting suitable equipment, optimizing production processes, and improving product quality.

1. Equipment model and specifications

Model: The model of a PE blown film machine usually reflects the basic specifications and purpose of the equipment. For example, certain models may be dedicated to producing films of specific thicknesses or suitable for different types of polyethylene materials (such as LDPE, LLDPE, HDPE).

Specifications: The specifications of the equipment include production width, film thickness range, extruder screw diameter, etc. These parameters directly determine the production capacity and scope of application of the equipment.

2. Extruder parameters

Screw diameter: Screw diameter is one of the core parameters of an extruder, usually expressed in millimeters (mm). A larger screw diameter means higher production, but it also requires greater power and more complex control systems.

Length to diameter ratio (L/D): The length to diameter ratio refers to the ratio of the length of a screw to its diameter. A higher aspect ratio helps to better plasticize materials and improve the quality and uniformity of films.

Extrusion rate: Extrusion rate represents the production capacity of the extruder per unit time, usually measured in kilograms per hour (kg/h). This parameter directly affects the production efficiency of the equipment.

3. Mold parameters

Mold head types: Common mold head types include spiral mold heads, center feed mold heads, etc. Different types of molds are suitable for different production processes and film characteristics.

Die diameter: The die diameter determines the width range of the film. A larger die diameter can produce wider films, but it also requires higher technology and more complex control systems.

Mold gap: Mold gap refers to the size of the mold opening, which directly affects the thickness of the film. Accurate control of die gap is the key to producing high-quality films.

4. Cooling system parameters

Wind ring type: Wind rings are used to cool thin films, and common types include single lip wind rings, double lip wind rings, etc. The cooling effect and applicable range of different types of wind rings are different.

Airflow: Airflow determines the efficiency of the cooling system, typically measured in cubic meters per hour (m ³/h). A larger air volume can cool the film faster and improve production efficiency.

Cooling methods: Cooling methods include natural cooling, forced air cooling, water cooling, etc. Different cooling methods are suitable for different production processes and film characteristics.

5. Traction system parameters

Traction roller diameter: The diameter of the traction roller affects the traction force and stability of the film. A larger diameter of the traction roller can provide more uniform traction force, reducing the stretching and deformation of the film.

Traction speed: Traction speed refers to the traction speed of the film, usually measured in meters per minute (m/min). Higher traction speed can improve production efficiency, but it also requires higher technology and more complex control systems.

Tension control: The tension control system is used to accurately control the tension of the film, preventing problems such as stretching and deformation during the traction process.

6. Roll up system parameters

Roll up methods: Common roll up methods include center roll up, surface roll up, etc. Different winding methods are suitable for different production processes and film characteristics.

Winding diameter: The winding diameter represents the maximum diameter of the winding roller, usually measured in millimeters (mm). A larger winding diameter can roll more film, reduce the number of roll changes, and improve production efficiency.

Winding tension: The winding tension control system is used to accurately control the winding tension of the film, preventing problems such as uneven tension and wrinkling during the winding process.

7. Electrical control system parameters

Control methods: Common control methods include manual control, semi-automatic control, fully automatic control, etc. Different control methods are applicable to different production processes and operational requirements.

PLC control system: PLC (Programmable Logic Controller) is the core control system of modern PE blown film machines, used for precise control of various parameters and operation processes of the equipment.

Touch screen operation interface: The touch screen operation interface provides intuitive and convenient operation methods, making it easy for users to set parameters, monitor equipment, and diagnose faults.

8. Power system parameters

Motor power: Motor power represents the power output of the equipment, usually measured in kilowatts (kW). A larger motor power can provide higher production capacity and more stable operating performance.

Heating power: Heating power represents the heating capacity of the equipment, usually measured in kilowatts (kW). A higher heating power can heat materials faster and improve production efficiency.

Energy consumption: Energy consumption refers to the energy consumption of equipment, usually measured in kilowatt hours per hour (kWh/h). Lower energy consumption can reduce production costs and improve economic efficiency.

9. Safety and environmental parameters

Safety protection device: The safety protection device includes overload protection, overheating protection, emergency shutdown, etc., to ensure that the equipment can be safely shut down in abnormal situations and prevent accidents from occurring.

Noise level: Noise level refers to the level of noise produced by equipment during operation, usually measured in decibels (dB). Lower noise levels can improve the comfort of the working environment and reduce the impact on the health of operators.

Environmental performance: Environmental performance includes equipment exhaust emissions, wastewater treatment, etc. Good environmental performance can reduce pollution to the environment and meet the environmental requirements of modern industry.

10. After sales service and technical support

Warranty period: The warranty period refers to the free repair service period provided by the equipment manufacturer, usually measured in years. A longer warranty period can provide more reliable after-sales support.

Technical support: Technical support includes equipment installation, debugging, training, fault diagnosis, etc. Good technical support can help users better use equipment, improve production efficiency and product quality.

The technical parameters of PE blown film machine cover all aspects of the equipment, from extruder, die head, cooling system to traction system, winding system, electrical control system, etc. Understanding these parameters not only helps to select suitable equipment, but also optimizes production processes, improves product quality and production efficiency. In practical operation, users should consider various parameters comprehensively based on specific production needs and process requirements, and choose the more suitable PE blown film machine.