Plate-Type Quick Screen Changer

A plate-type quick screen changer is a highly efficient and automated switching device specifically designed for polymer (such as plastics and rubber) melt filtration. Its core function is to filter impurities and foreign particles from the melt online during continuous production processes such as extrusion and granulation, ensuring the purity and quality of the final product. It allows for rapid screen switching without interruption of operation or interrupting the material flow. Depending on the station design, it can be divided into various types, such as single-plate dual-station and dual-plate dual-station, to adapt to different production needs. It is widely used in many fields, including adhesives, rubber, chemical fiber products, plastic extrusion, granulation, pipes, blown films, and sheets.

Product Overview

Material Viscosity 100~40000Pa.s
Filtration fineness Approximately 600 um
Application areas Production of adhesives, rubber, chemical fiber products, granulation, pipes, blown films, and sheets; production of other thermoplastic products and blending and filtration of materials.
Applicable materials It can filter various materials with a viscosity below 40,000 Pa·s and a filtration fineness greater than 600 μm, such as adhesives, rubber, corrugated pipes, pipes, PVC, PC, PMMA, PET, PS, PU, ​​PP, PE and more than a thousand other materials.

 Working Principle

The plate-type quick screen changer consists of precision-machined plates with built-in filters, a hydraulic drive unit, sealing components, and a heating and temperature control system. Each plate has two filter stations. While one station is in operation, the other is in standby mode. During screen changing, a accumulator-type hydraulic station enables rapid switching between the working and standby stations, ensuring efficient screen changing without interruption of operation or material leakage. The heating system ensures stable material temperature and prevents cooling blockage; the control system precisely regulates the entire screen changing process.

Product Advantages

  • Quick Screen Replacement and Convenient Operation
    Screen replacement can be completed within 2 seconds. The dual filtration channels work alternately, enabling truly continuous production without downtime and significantly improving production efficiency. The modular design simplifies daily maintenance and screen replacement, reducing personnel workload and training costs.
  • Excellent Sealing and Large Filtration Area
    The flexible pressure-activated sealing structure automatically activates and compensates for the melt pressure, effectively preventing material leakage under high pressure and ensuring long-term operational reliability. The large filtration area quickly removes impurities, ensuring product purity.
  • Reliable Structure and Strong Process Adaptability
    The equipment is made of high-pressure and high-temperature resistant alloy steel, allowing stable operation under pressures up to 25 MPa and temperatures up to 400°C, meeting the processing requirements of most polymer materials. Its short and straight flow channel design minimizes temperature and pressure changes as the material flows through, effectively ensuring product stability and consistency, making it suitable for high-viscosity and heat-sensitive materials.
  • Highly Customized Solutions
    Explosion-proof design can be provided according to customer requirements, and the material can be SS304/SS316L stainless steel or other special alloys as needed.

Technical Parameter

Type Screen-Dm (mm) Capacity(kg/h) Heating Power (kw) Pressure(Mpa)
DHB-70 ∅70 60-250 2.0 ≤50
DHB-100 ∅100 110-400 2.4 ≤50
DHB-150 ∅150 200-800 4.5 ≤40
DHB-180 ∅180 300-1100 4.5 ≤35
DHB-200 ∅200 400-1200 8 ≤35
DHB-220 ∅220 400-1500 8 ≤30
DHB-250 ∅250 600-1800 8 ≤30
DHB-300 ∅300 700-2100 11.5 ≤25
DHB-330 ∅330 800-2300 15 ≤25
DHB-350 ∅350 1000-2800 16.4 ≤20
DHB-400 ∅400 1300-3700 21 ≤20
DHB-450 ∅450 1500-4500 30 ≤15
DHB-500 ∅500 2000-6000 40 ≤15

Contact Information

  • Office

    Rm. 305-307, Building 1, No. 168 Taihong Rd.,
    Hongqiao Business District, Shanghai China

    View Map
  • Factory

    Block D2, D5 Intelligent Industry Park, No. 2777 WanfengRd,
    Jinshan District, Shanghai, China

    View Map
  • Tel

    +86 21 52913185 / 52913186

  • Fax

    +86 21 52912822

Leave Us a Message

Please kindly fill out the following form if any question or for more information, we will reply you as soon as possible.

    • captcha