Dimensions and Aperture Parameters
The dimensions and aperture configuration of polyurethane slotted screen panels constitute their core technical parameters. The width of the slots typically ranges from 1 to 20 millimeters and can be customized according to the particle size of the material being processed; the slots are arranged with uniform spacing to ensure high screening precision and efficiency. The thickness of the screen panel usually falls between 10 and 30 millimeters, selected based on the type of screening machine and the characteristics of the material. Greater thickness generally translates to superior wear resistance, though this requires corresponding adjustments to ensure proper installation and efficient vibration transmission. The length and width of the screen panels are designed to match specific screening machine models, with customized production options available to meet the requirements of both single-layer and multi-layer screening systems.
Material Performance Indicators
Polyurethane slotted screen panels are primarily manufactured from high-performance polymeric polyurethane materials. Their hardness typically ranges from 70 to 95 on the Shore A scale, allowing for the selection of an appropriate hardness level based on the specific hardness and abrasive properties of the material being screened. The material generally exhibits a tensile strength of 15 to 25 MPa and an elongation at break of 300% to 500%; these properties ensure that the screen panels resist fracture or deformation, even when subjected to high-frequency vibrations and material impact. Furthermore, polyurethane materials possess excellent resistance to abrasion, corrosion, and extreme temperatures, making them well-suited for use in diverse industrial environments such as mining, chemical processing, construction materials, and food processing.
Vibration Compatibility and Operational Parameters
Polyurethane slotted screen panels are designed for use with high-frequency vibrating screens. Their typical operating frequency ranges from 800 to 1500 Hz, with an amplitude of 0.3 to 0.8 millimeters; these parameters can be adjusted according to material characteristics to achieve optimal screening results. Under high-frequency vibration, the screen panels maintain a stable structural form, effectively preventing aperture clogging and ensuring the uniform passage of material. Concurrently, the elastic structure of the polyurethane material helps dampen the impact of vibrations on the equipment frame, thereby extending the overall service life of the screening machine. The service life of these panels is typically two to five times longer than that of traditional metal screen panels, and they feature shorter maintenance cycles, making them ideal for continuous production environments.
