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Lightweight PE Plastic Plate for Chemical Handling - Custom Shapes from China Suppliers & Factory

Sintered plastic PE plates are expertly crafted from ultra-high molecular weight polyethylene or polypropylene material through high-temperature and high-pressure sintering processes. Available in round, square, or custom shapes, these plates are tailored to meet specific customer requirements. Their fixed shapes and uniform pore sizes make them ideal for use as gas distribution plates in various powder operations. As a leading manufacturer in China, our factory provides high-quality sintered plastic solutions for diverse applications, ensuring durability and efficiency. Partner with us, the trusted suppliers in the industry, for all your sintered plastic needs

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    Product Description

    ● It plays a decisive role in the control of gas distribution, the transmission and fluidization of powder materials, and is used in industrial processes. It has a very wide range of applications, it is used as a supporting plate for dispersing porous solids in liquid-solid separation (ion exchange columns, chromatography columns, etc.). In addition, polymer composite materials have the characteristics of anti static voltage, so filter plates are also widely used in electrostatic powder spraying, electrostatic generator barrels and fluidized bed devices.

    ● The surface of the filter plate is sprayed with PTFE coating, penetrates into the matrix of the polymer filter plate, and forms an ultra-fine micro porous structure with it, so that the filter plate has good chemical stability, large filtration area, high pore precision, uniform airflow distribution, and low resistance loss, small size, superior flow air distribution performance and so on.

    Technical Parameters Of Plastic PE Plate

    Working temperature: PE ≤ 80°C

    Working pressure: 0.1MPa - 0.6MPa

    Filtration precision: 0.2um - 100um

    * Existing Specification
    Round disc Rectangular filter plate/disc Square filter plate
    Diameter (mm) Thickness (mm) Diameter (mm) Thickness (mm) Length (mm) Width (mm) Thickness (mm) Diameter (mm) Thickness (mm)
    250 3 90 5 170 85 5 280 3
    240 1.7 89.5 5 157 85.5 5 150 2
    143 6.35 89 1.65 108 237 1.5 142 3.2
    125 3.3 - - - - - - -

    Note: In addition to the above molded pieces, the largest size can be customized to 1800*1200mm, and the thinnest thickness is 3-35mm. This range of sizes can be made.

    Product Performance Of Plastic PE Plate

    Uniform distribution of filter pore size, good fluidity, resistant to strong acid alkali, salt and most organic solvents, easy to back flush, high regeneration efficiency.

    The temperature resistance of PE material is 80°C, and the temperature resistance of PA material is 120°C. It is non-toxic, tasteless, and has no medium shedding. It has excellent mechanical properties and is not easy to damage. The raw material meets the requirements of GMP and FDA, does not use adhesives, and has a wide range of chemical compatibility.

    Production Process Of Plastic PE Plate

    • 1 Raw material preparation and mixing
      High molecular weight polyethylene (UHMW-PE) granules are selected as the main raw material, which need to be dried to remove moisture. Additives such as lubricants and fillers may be added at the mixing stage, and the homogeneous mixing is realized through high-speed mixing or ball milling process.
    • 2 Molding
      The mixed materials are loaded into molds and initially pressed into molded blanks through high pressure (room temperature or heat). Example:
      - Molding-sintering method: the mold is heated together with the raw material to a molten state (about 200-230°C) and subsequently cooled and shaped.
      - High-speed molding method: At a temperature close to the melting point, a dense structure is formed by high-speed impact pressing to shorten the molding time.
    • 3 Sintering process
      The blanks are sintered in an inert gas-protected furnace to melt and recrystallize locally at the particle interface to form a porous structure. The temperature and time need to be precisely controlled to avoid degradation or impermeable plasticization.
    • 4 Post-treatment and surface modification
      The sintered plate is cooled, polished, and antifouling treated (e.g., sprayed with PTFE coating) to enhance hydrophobicity and corrosion resistance. Some processes require secondary pressing to optimize mechanical properties.
    • 5 Cutting and quality control
      Cut to specific sizes as required and tested for density, pore size distribution, mechanical strength, etc. to ensure compliance with application standards.

    Advantages of Sintered PE Plate

    1. Abrasion & Impact Resistance

    Extremely low coefficient of friction (0.07-0.11), abrasion resistance is 3-7 times higher than that of steel, suitable for high abrasion environments.

    2. Excellent Chemical Resistance

    Stable to acid, alkali, salt and most organic solvents, suitable for chemical industry, electroplating and other corrosive media treatment.

    3. Hydrophobicity & Moisture Resistance

    The composite structure of PE and PTFE gives the plate strong hydrophobicity, which can be used in humid environment for a long time, avoiding the problem of muddy bag.

    4. Environmentally Friendly & Long Life

    No adhesive, non-toxic, odorless, FDA certified; service life of more than 10 years, support for cleaning and regeneration.

    5. Wide Temperature Range

    Resistant to low temperature (-100℃ to -70℃), short-term high temperature up to 80-120℃ (depending on specific materials).

    Application of Plastic PE Plate

    1. Environmental & Industrial Filtration

    Water treatment: wastewater heavy metal ion filtration (cadmium, lead) & drinking water purification.
    Air purification: dust collector filter elements for high temp/humidity flue gas.

    2. Chemical & Energy

    Chemical equipment: corrosion-resistant pipes and reactor liners.
    New energy: lithium battery diaphragm materials to adapt to high energy density demands.

    3. Food & Medicine

    Food processing: filtration media for dairy product degreasing and fruit juice clarification.
    Pharmaceutical: aseptic filtration and sterilization of medical devices, complying with GMP standards.

    4. Transportation & Machinery

    Marine & automotive: wear-resistant liners, seals, reducing maintenance costs.
    Powder conveying: hopper and chute lining to avoid material adhesion.

    Our factory, with its unique processing technology (such as molded sintering and surface modification) and performance advantages (wear-resistant, corrosion-resistant, environmentally friendly), ensures sintered PE plates occupy an important position in the fields of environmental protection, chemical industry, food, and so on. Its market penetration is expected to increase further in the future with technological upgrades.

    Frequently Asked Questions (FAQ)

    What is the working temperature limit for the plastic PE plate?
    The standard working temperature for the PE filter plate is ≤80°C. For applications requiring higher temperature resistance, PA material options are available, which can withstand temperatures up to 120°C.
    Can the size and thickness of the PE plates be customized?
    Yes. In addition to our standard specifications, we can customize sizes up to a maximum of 1800*1200mm, with the thinnest achievable thickness ranging from 3mm to 35mm.
    Is the sintered PE plate safe for food and pharmaceutical applications?
    Yes, the raw materials used meet GMP and FDA compliance standards. The manufacturing process does not use adhesives, ensuring the plates are non-toxic, tasteless, and free from medium shedding.
    How does the PTFE coating improve the performance of the filter plate?
    The PTFE coating penetrates the polymer matrix to form an ultra-fine microporous structure. This enhances the plate's chemical stability, ensures uniform airflow distribution, minimizes resistance loss, and provides excellent hydrophobicity.
    What is the expected service life and maintenance process for these plates?
    Sintered PE plates feature excellent mechanical properties and are highly durable, offering a service life of over 10 years. They are easy to backflush and clean, resulting in high regeneration efficiency.