Aggredry® Dewatering Washer

Aggredry® Dewatering Washer 36 inch Single by Superior Industries

Next Generation Sand Screw

The Aggredry Dewatering Washer, a combination wet screw and dewatering screen, can be used anywhere a fine material washer might be used. However, the added benefits pay back your investment in a very short time.

Generally speaking, traditional sand screws produce material with a moisture content of about 15-20%. That sloppy sand can be impossible to run up a stacker, takes weeks to dry and wears on other equipment. Meanwhile, the precious water is wasted as it usually evaporates before finding your pond.

While material moves through an Aggredry Washer’s screw section clays, dirts and fines are separated before the good sand moves to an attached dewatering screen.

The major disadvantage of dewatering screens has always been lost material, but that’s the superpower of this machine. Those lost fines collect in an underflume and are flushed back to the screw. This patented jet is constantly reclaiming and returning valuable material.

Sand discharges from the Aggredry Washer with a moisture content as low as 8% and is instantly available for sale or further processing.

  • Single or twin screw options
  • Capacities up to 800 STPH (725 MTPH)
  • Maximum material size of ¾” (19mm)

How much better could you do with an Aggredry Washer?


Fine material washer

Single or twin screw models accept feed sizes up to 3/4” (19mm). Separates unwanted slime and dirt from sand.


fines recovery jet

Valuable ultrafines that collect below the screen are flushed back to the screw.


dewatering screen

Deeper bed depth combined with sidewall media produces a drier product.


Safeguard™ outboard bearing

Off-the-shelf pillow block bearing installed outside the tank to shield from moisture.


Belly Pan

Curved shape eliminates dead spots for material to gather, which is common at 90° angles.

5 Disadvantages of Wet Sand

Do you use a fine screw in your application without a drying or dewatering stage? Sand processed through standard screws retains about 25% moisture, which affects performance throughout the rest of your plant.

Five disadvantages of wet sand:

  1. Extra real estate required for drying stockpiles 
  2. Reduced lifespan of rolling stock tires
  3. Water run-off makes for a messy operation
  4. Sand sticks to conveyor idlers and pulleys
  5. Wasted water evaporates before reaching pond
Wissota Sand Uses New Technology to Save Water

Veteran producer fixes damaging effects of wet sand.

Aggredry Washer

Fines Recovery CALCULATOR

Enter your plant’s production data into the calculator to learn how much profit you’re flushing away.

Wet Sand Production
Minimum of 3% savings calculated.
Keep going, see how it affects your bottom line.

Find Your Additional Annual Profit

Your calculated additional annual profit from fines recovery.

Aggredry Dewatering Washers in Application

Wissota Sand Uses New Technology to Save Water

A veteran sand and gravel producer in southeast Wisconsin replaces inefficient, water-wasting sand screw with a water recycling Aggredry Washer.

John Bennington gives a walk-through of the Aggredry Washer at CONEXPO/CONAGG 2020/

Cemstone Upgrades To Superior Aggredry® Washer and Classifying Tank

Operations manager Matt James talks about the benefits of using Superior’s Aggredry Washer as well as Superior’s Aggrespec™ Control System on a Classifying Tank..

John Bennington Calls Aggredry® Washer Standard Screw of Future

We call him the “professor” for a reason. From the mind of longtime industry veteran and guru of sand washing and classifying, John Bennington, came the Aggredry® Washer. Learn more.

Which equipment is right for my production?

Aggredry® Dewatering Washer Single Screw by Superior Industries 300px


  • Cost: $$
  • Power: 0.22 kW
  • Water: Dependent on silt
  • Footprint: Medium
  • Maintenance: Monthly
  • Tonnage: Up to 600 TPH
  • Feed: Up to 3/4″
  • Feed Preparation: Slurry
  • Feed Variation: Not sensitive
  • Set-Up: Half day
Fine Material Washer by Superior Industries

Fine Material

  • Cost: $
  • Power: 0.14 kW
  • Water: Dependent on silt
  • Footprint: Medium
  • Maintenance: Monthly
  • Tonnage: Up to 1,200 TPH
  • Feed: Up to 3/4″
  • Feed Preparation: Slurry
  • Feed Variation: Not sensitive
  • Set-Up: Half day
Alliance Low Water Washer | Superior Industries

Alliance® Low
water Washer

  • Cost: $$$
  • Power: 0.22 kW
  • Water: Very low
  • Footprint: Small
  • Maintenance: Annually
  • Feed: Up to 1/2″
  • Feed Preparation: Dry
  • Tonnage: Up to 300 TPH
  • Feed Variation: Sensitive
  • Set-Up: Half day
Spirit Sand Plant | Superior Industries

Sand Plant

  • Cost: $$$
  • Power: 0.67 kW
  • Water: Fixed (Medium)
  • Footprint: Very small
  • Maintenance: Annually
  • Tonnage: Up to 300 TPH
  • Feed: Up to 2/5″
  • Feed Preparation: Slurry
  • Feed Variation: Very sensitive
  • Set-Up: Full day
stock inventory mockup laptop - front page

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.

GET DRIER SAND | Aggredry dewatering washer

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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

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