Keep Spec Sand in Spec
A fine material screw is your workhorse for sand production. It separates unwanted silts and clays from your final product, then lifts clean sand up and out of the pool. It’s a simple design that does exactly what you need: wash, classify, and move material without slowing down the rest of your circuit.
Whether you're producing mason sand, concrete sand, or anything in between, this machine keeps your gradation tight and your operation moving. The Fine Material Screw is a straightforward tool that just works, day in, day out, load after load.
Models
Advantages
Outboard Bearing
Externally mounted pillow block bearing protects from water and contamination for longer service life and more convenient maintenance.
Load Zone Baffle
Calms the rush of incoming water to stabilize the pool, allowing more fines to settle and improving recovery efficiency.
Adjustable Wear Plate
Levels overflow to control water velocity and maximize fines retention across varying feed conditions.
Washback Nozzle
Directs spray toward the discharge to lift and drain sand that would otherwise remain saturated or idle near the outlet.
Speed Isn’t Always Spec
It’s easy to think a faster screw means faster production. But in reality, higher speed creates turbulence that keeps heavier particles suspended and valuable sand is lost with the overflow.
This animation shows what really happens inside a fine material washer and why operating at the recommended speed gives sand time to settle, reduces waste, and produces cleaner, in-spec material with every pass.
Where to BuyVideos
See how a surprising sand discovery led Hoover Materials to build a turnkey plant that delivers consistency, sustainability, and new opportunity just north of Nashville.
A veteran sand and gravel producer in Wisconsin replaces inefficient, water-wasting sand screws with water recycling Aggredry Washers.
See how Cemstone’s new washing circuit is reclaiming fines, reducing moisture, and delivering saleable material straight off the belt.
