Why Do Australian Customers Prefer Scrw Sand Washers?

Australian customers prefer screw sand washers for several key reasons: the raw material is highly adhesive and has a high clay content; production is large-scale and continuous; sites are remote, requiring durable equipment; high standards demand superior cleaning efficiency; and the machines are compatible with Australia’s established local processing chains.

1. Raw Materials

The primary sand sources in Australia are mountain sand, weathered sand, and crushed sandstone—not clean river sand. The clay content generally exceeds 15%, with high levels of clay and strong adhesion, causing the mud to cling tightly to the surface of the sand particles.

The screw sand washer features a horizontal, elongated design. The low-speed, vigorous agitation of the screw shaft, combined with counter-current flushing, provides deep scrubbing, achieving a de-silting rate of over 90%. The finished product has a clay content of ≤1%, delivering a cleaning efficiency far superior to that of wheel bucket sand washers.

2. On-Site Requirements

Australian sand and gravel plants are typically large-scale operations, commonly processing 150–300 t/h with 24-hour continuous operation. The spiral sand washer features a simple, durable design with few wear parts and a long service life. For remote areas, this machine can significantly reduce maintenance costs.

3. After-Sales Service

Spiral sand washing production lines are well-established in Australia, with comprehensive maintenance and spare parts services available. Customers choosing a spiral sand washer need not worry about post-sales support issues.