Classify, Scrub and Dewater
Fine material is usually defined as 3/8” (9.5mm) and less. However, Superior’s fine material screw washers will accept a maximum feed of 3/4” (19mm).
In addition to minor scrubbing, the machinery is capable of removing clays, silt, and unwanted lightweight contaminants. Heavier material settles to the bottom and is augured up the tub.
As it proceeds up the incline, water drains from the material and is eventually discharged with a moisture content of 15-25%.
If you don’t have time or space to stockpile and dry this material, many producers pair with a dewatering screen to remove half of that moisture. Better yet, the Aggredry® Dewatering Washer is all processes in a single machine.
- Single or twin screws
- Capacities up to 1,100 STPH (1,000 MTPH)
- Only fine screw capable of handling up to 3/4” (19mm) material
resources
Customer Stories
Models
BEARING OPTIONS

Safeguard™ Outboard Bearing
36 x 25 SINGLE SCREW SHOWN
Standard design
Pillow block bearing
Bearing mounted away from tank
Retrofit kits for existing screws

Flange Mount Bearing
44 x 32 SINGLE SCREW SHOWN
Uses flange block bearing
Matches footprint of EIW and Trio
Replacement parts available too
Fine Material Washer in Application
Saylorcreek Sand Company, a Des Moines, Iowa-based producer of sand, mulch and dirt relies on Superior’s quick response service times to maintain high levels of material production.
Startup construction aggregate firm, Apex Sand & Gravel, uses Superior washing and conveying equipment to supply I-80 in Western Nebraska.

Stock Inventory
Most of the time, we rely on our dealers to stock Superior equipment. However, we typically have a small amount of factory stock.
Have questions? Need a quote? Complete the form below and we will follow up shortly.
Request More Info | Fine Material Washer
See our privacy policy.
Service & Parts
We always have been and always will be a privately-owned company. That means we can add more employees to our customer service team without Wall Street breathing down our neck. Isn’t that the way it should be?
dealer support
They’re the same neighbors you’d trust to babysit your dog on the weekend. Our factory-trained dealers are a local connection for sales, service and parts.
phone support
Staffed by agents born to serve others, you’re welcome to call our technical service team 24/7/365. (If you call in the middle of the night, we can’t guarantee they’re in uniform!)
replacement parts
You know the old saying…”square pegs don’t fit in round holes?” It’s often the case with knock-off parts. Genuine Superior parts are forged from the same steel as our equipment