Analysis and Solutions for Rapid Wear of Metal Wire Mesh Screens in Sand Making Production Screening Process

Those in the sand making industry know: screens need replacing more often than clothes. Many people's first reaction is "poor screen quality," but in reality, most problems lie in the usage process, not the screen itself.

Three Main Reasons

Excessive Feed Impact is the most common "killer" of your wire woven mesh. The material coming out of the sand making machine slams against the screen at high speed, equivalent to hammering the wire every day. Many production lines directly align the feed inlet with the center of the screen, causing that area to always be the first to fail. The Material Characteristics are Too "Hardcore." If the stone has a high silica content, such as quartzite or granite, the particles are hard and have sharp edges, constantly grinding the wires every time they pass through the screen.

Combined with high humidity, which easily clogs the holes, the wear rate doubles after accumulated friction. Improper Screen Tension is often overlooked. If it's too loose, it bounces up and down during operation, causing the wires to rub against each other; if it's too tight, it's prone to breakage. The correct approach to maintain your metal wire mesh is to maintain moderate tension, without wrinkles or excessive tension like a string.

Targeted Solutions

Firstly, a buffer device can be added. Adding a rubber pad or material plate below the feed inlet allows the material to fall onto the plate first and then slide onto the screen surface, thus dispersing most of the impact force and effectively extending the screen's lifespan. Secondly, choosing the right materials and structure is also crucial. For highly abrasive materials, manganese steel or spring steel screens are recommended, as their wear resistance is several times that of ordinary carbon steel. If conditions permit, polyurethane-coated screens can also be chosen. Although their cost is higher than other screens, their lifespan is significantly extended, resulting in a lower overall cost. Optimizing tension and support is also an effective way to delay wear of your wire woven mesh. Special tools should be used during installation to ensure even stress distribution.

Regular cleaning and maintenance is necessary for your wire woven screen. After daily shutdown, use a high-pressure water gun or air gun to clean any blockages in the screen holes. On the meanwhile，Regularly rotating the screen direction helps distribute wear evenly and also extends its overall lifespan.

In short, rapid screen wear is often the result of a combination of factors. From feeding and material selection to installation and maintenance, doing each step properly is crucial for a long-lasting wire mesh screen. Don't always rely on replacing the screen; first, change your usage habits, and the results will be immediate.