Choosing the right screen panel thickness is about balancing durability against screening efficiency. For heavy, high-impact ores (iron ore, granite) , recommended thickness is 50–100 mm to withstand extreme abrasion and impact. For medium-density materials (coal, aggregates) , 30–60 mm balances wear life and efficiency. For light, fine screening, 8–25 mm provides higher open area for better fines separation. Key factors: feed drop height (>1m requires ≥50mm or impact pads), aperture-to-thickness ratio (1.25–2.5× for rubber; 1.25–3.5× for polyurethane), and Shore A hardness (85+ for abrasion; 60–70 for anti-blinding). The optimal thickness delivers the lowest cost per screened ton—don't guess, calculate based on your ore type and operating conditions.