Heavy-Duty Mining Systems? Oil Filter Elements for Abrasive Protection & Longer Change Cycles
February 2, 2023
Mining hydraulics operate under heavy shock loads and intense abrasive dust (quartz, slag fines). These particles grind pumps and valves quickly, causing creeping cylinders, cavitation noise, and grooved filter surfaces.
Mining-grade Oil Filter Elements need high burst strength, reinforced support, and very high β values. Use a metal mesh core + multi-layer depth glass fiber: a 50 μm outer layer for coarse capture, a 10 μm main layer, and an inner support layer. Such elements withstand ~25 MPa pulse pressure. In return lines, choose 10 μm with β≥1000; pressure lines may require 5–10 μm to protect pump inlets.
Monitor the ΔP rise slope. Mining ΔP rises faster normally, but a sudden 2× jump within days indicates abnormal dust ingression or bypass leakage. Replace around 0.25–0.30 MPa, improve tank sealing and breathers, and control water content to prevent abrasive slurry formation.
