Single plate screen changer

The single plate screen changer comprises a main body, a slide plate (fitted with 2 screens), and a hydraulic station, together forming a polymer filtration system. During screen changing, the hydraulic station drives the slide plate to push the contaminated screen out of the melt flow for filter mesh replacement, while the other screen simultaneously moves into the melt flow—enabling non-stop screen changing.

Our single plate screen changer is equipped with an accumulator. When changing screens, the accumulator can instantly release all its stored kinetic energy to switch the screens rapidly. This minimizes pressure fluctuations, ensuring no impact on product quality.

We offer three variants of the single plate screen changer: round, square, and two-piece designs.

Advantages of the Single Plate Screen Changer:

1. Non-stop screen changing: Eliminates the need for machine shutdown during screen changing, reducing production interruptions and boosting output.
2. Rapid screen change process: Equipped with an accumulator, it enables instant screen switching with minimal pressure fluctuation, thereby enhancing product quality consistency.
3. High-efficiency filtration: Effectively removes impurities from the melt while improving product quality, making it suitable for high-precision filtration requirements.
4. Exceptional durability: The main body is crafted from 45# carbon steel, utilizing forging and tempering processes. After nitriding treatment, it achieves a hardness of 850HV–1000HV and a pressure resistance of up to 60MPa, ensuring suitability for long-term continuous operation.
5. Strong adaptability: Compatible with various materials and process conditions, capable of handling complex working environments such as high-viscosity materials and high temperatures.
6. High automation level: Features user-friendly operation, significantly reducing labor costs.
7. Energy-efficient and eco-friendly: Reduces waste and energy consumption, lowering production costs, improving efficiency, and increasing economic benefits.
8. Easy maintenance: Its simple structure allows for easy disassembly and cleaning, greatly reducing maintenance costs.

Disadvantages of single plate screen changers:​
Compared with double filter barrel screen changers and netless screen changers, its filtration area is much smaller. As a result, under the same output, it requires much more frequent screen changes. Additionally, the working pressure of the extruder needs to be reduced when changing the screen.

The single plate screen changer features a simple structure and high reliability. It is adaptable to the processing and production of various polymers, as well as high-temperature and high-pressure working conditions. With user-friendly operation and fast screen-changing speed, it is widely used in filtering polymer, rubber, resin, and other raw materials in the extrusion production field. Its applications span processes such as film blowing, vacuum forming, blow molding, and granulation, contributing to enhanced production efficiency and product quality.

◆ Granulation production lines: Suitable for polymer materials including PP, PE, PET, and PA;
◆ Film production lines: Suitable for polymer materials including PET, CPE, BOPP, PE, and HDPE;
◆ Sheet and plate production lines: Suitable for polymer materials including PP, PE, PET, and ABS;
◆ Packing tape production lines: Suitable for polymer materials including PP and PET;
◆ Hollow product production lines;