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Polymer Leaf Disc Filters from China Suppliers | High-Quality Filtration for Plastic Film Factory

Leaf disc filters play a crucial role in polymer film filtration, effectively removing impurities, contaminants, and particles from the polymer melt or solution prior to the film formation process. This essential filtration ensures the production of high-quality, defect-free polymer films—a necessity for manufacturers aiming for excellence, Compared to traditional melt filter elements, our filter discs offer significant advantages, such as a larger effective filtration area and enhanced stability due to their robust mechanical structure. Maintenance is also simplified, making them an ideal choice for demanding working conditions characterized by high impurity content, increased output, and elevated pressure, As a leading factory in China, we take pride in being top suppliers of advanced leaf disc filters, designed to meet the rigorous standards of the polymer industry

    Polymer Leaf Disc Filters

    Our Polymer leaf disc filters are well-developed filtration products after we are delicate to developing and improving on it for many years by using advanced professional welding equipment and process.

    It has the characteristics of the resistance to high pressure & temperature, to chemical corrosion; and good permeability, large dirt-holding capacity, reliable performance and long lifetime with high strength, tenacity, excellent impact resistance, and can be repeatedly used after cleaning. It is mainly used for polymer filtration in the production line of BOPA, BOPET, and BOPP, in order to remove polymer gel, coagulating agent, catalyst, and other solid impurities. Polymer Discs filters are widely applied in the industry of film, polyester polymer, spinning, packaging materials, engineering plastics, oil, chemical and others.

    Main Features
    • 🔬 Remove impurities, contaminants, and particles from the polymer melt
    • 💧 Good permeability, large dirt-holding capacity
    • 🛡️ Corrosion resistance; High Temperature And Pressure Resistance
    • ♻️ Filter element is repeatedly used after cleaning by ultrasound
    Specification
    Working pressure ≤31.7MPa
    Working temperature ≤300℃
    Medium viscosity ≤260Pa.s
    Allowable pressure differential ≤10Mpa
    Media material Stainless steel sintered fiber, multi-layer sintered stainless steel wire, sintered metal powder
    Filtration rate (βx≥75) 5、7、10、15、20、25、30、40、60、80、100μm
    Type
    Center ring welding type (soft hub) Center ring type (hard hub)
    Center-ring-welding-type disc-filter (1)
    Note We can provide high quality polymer disc filters to meet your specific requirements of polymer melt filtration applications.
    How to Choose Between Filter Discs and Melt Filter Elements?

    It depends on the specific production process requirements and economic benefit considerations.

    🔵 The situation where the filter disc is preferred:
    • The Recycled Material (Recycled material) has a very high impurity content.
    • Continuous production, pursuing an extremely long replacement cycle and the highest equipment stability.
    • The melt pressure is extremely high and the working conditions are harsh.
    • From a long-term economic perspective, they are willing to accept a higher initial investment in exchange for lower long-term operating costs.
    🟢 Situations where melt filter elements are preferred:
    • The raw materials are relatively clean with low impurity content.
    • It has extremely high requirements for filtration accuracy (some filter elements can provide even more extreme accuracy).
    • Due to limited space, a more compact filtration solution is needed.
    • The production batches are variable and require flexible adjustments, or the initial investment budget is limited.
    Detail Display
    Frequently Asked Questions
    Q What industries are polymer leaf disc filters used in?
    Polymer leaf disc filters are widely used in the film, polyester polymer, spinning, packaging materials, engineering plastics, oil, and chemical industries. They are specifically applied in BOPA, BOPET, and BOPP production lines to remove polymer gel, coagulating agents, catalysts, and other solid impurities.
    Q What filtration accuracy levels are available for polymer disc filters?
    Our polymer disc filters are available in a wide range of filtration rates (βx≥75), including 5, 7, 10, 15, 20, 25, 30, 40, 60, 80, and 100 μm, to suit various polymer melt filtration requirements.
    Q Can polymer leaf disc filters be cleaned and reused?
    Yes. The filter elements can be repeatedly cleaned using ultrasound and reused, which significantly reduces long-term operating costs and makes them a cost-effective solution for continuous production environments.
    Q What are the maximum working pressure and temperature of these filters?
    The polymer leaf disc filters support a maximum working pressure of ≤31.7 MPa and a maximum working temperature of ≤300℃, making them suitable for high-pressure and high-temperature polymer processing environments.
    Q What types of polymer disc filters are available?
    We offer two main types: the Center Ring Welding Type (soft hub) and the Center Ring Type (hard hub). Both types are available in custom specifications to meet your specific polymer melt filtration application needs.
    Q When should I choose a filter disc over a melt filter element?
    Filter discs are preferred when dealing with recycled materials with high impurity content, when continuous production with long replacement cycles is required, when melt pressure is extremely high, or when a higher initial investment is acceptable for lower long-term operating costs. Melt filter elements are better suited for cleaner raw materials, compact spaces, variable production batches, or limited initial budgets.

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