1.Diagonal Imbalance in Vibrating Screen
In polyurethane screen panel systems used for coal preparation and mining operations, diagonal imbalance is a frequent issue. This abnormal vibration pattern—where two diagonal corners vibrate while the others remain still—can severely reduce high efficiency screening.
Common causes include spring misalignment, exciter defects, and inconsistent counterweight angles on the vibrating screen motors.
Recommended for: Coal screening panel operators, screen mesh manufacturers, and mining screen suppliers should ensure correct spring installation and uniform motor synchronization.
2.Torsional Vibration in Vibrating Screens
orsional vibration typically affects linear vibrating screens and is more noticeable in polyurethane slot screen panels. This occurs when the excitation forces are misaligned or the eccentric weights on both sides are not in phase.
Poor installation and manufacturing tolerances can lead to these issues. Mining screen users and coal washing plant engineers should inspect the spring modulus and ensure the frame is not deformed.
Expert Tip: Use consistent spring dampers and check the rectangular integrity of your vibrating screen structure to reduce torsional movements and improve performance.
3.Small Amplitude in Vibrating Screens
Low amplitude in polyurethane screen systems can severely impact throughput and precision, especially when screening fine materials in coal processing plants or mineral industries. This is a common issue reported by screen mesh suppliers and end-users.
Causes include insufficient voltage, underloaded counterweights, or improper adjustment of the eccentric blocks.
ip for Mining Equipment Buyers: Check if your vibrating screen is fitted with the appropriate power supply and counterweight setup. Also, consider consulting a screen mesh manufacturer to review spring design and energy transfer efficiency.
4.Excessive Vibration in Vibrating Screens
Excessive vibration is often reported in heavy-duty screening systems where polyurethane slot screen panels are used for dewatering or de-sliming. This issue reduces operational safety and shortens the lifespan of screen panels.
Causes may include oversized excitation force, over-rigid springs, improper installation surface, or loose foundation bolts.
Advice for Global Buyers: Ensure the screen mesh manufacturer provides spring dampers suitable for your application. Always verify the motor direction before operation to maintain high efficiency screening with your polyurethane screen panel system.
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