ABOUT THE GENTLE ROLL™

ABOUT THE GENTLE ROLL™

Straightforward, simple screening.

KNOWN FOR IT'S QUALITY, EFFICIENCY, AND RELIABILITY.

The Gentle Roll™ screener’s tried-and-true design allows the product to be sifted, scalped, sorted, or cleaned. Each machine’s specifications are determined by the application, desired capacity, and final product goal.

Screeners that shake or vibrate may potentially cause structural stress and product damage. Unlike these screeners, the Gentle Roll™ uses a gentle rolling action to move the product through a non-vibrating, rotary drum assembly. The drum and screen rotate together as one assembly to prevent the drum from grinding the product. We manufacture the following models: Standard, 9″, and Mobile Model.

CREATED WITH SIMPLICITY IN MIND

The Gentle Roll™ screener is designed to be mounted on a level, horizontal plane. No adjustments are necessary for the screens or drum(s) after installation. The Gentle Roll™ is easy to install inside, outside, or on top of a building or structure. Because it’s weight-accounted and static-operating, the Gentle Roll™ may be safely mounted anywhere. Each Gentle Roll™ is built to run continuously, provides excellent dust control, and uses only the highest quality, weather-proof materials.

screener

CREATED WITH SIMPLICITY IN MIND

The Gentle Roll™ screener is designed to be mounted on a level, horizontal plane. No adjustments are necessary for the screens or drum(s) after installation. The Gentle Roll™ is easy to install inside, outside, or on top of a building or structure. Because it’s weight-accounted and static-operating, the Gentle Roll™ may be safely mounted anywhere. Each Gentle Roll™ is built to run continuously, provides excellent dust control, and uses only the highest quality, weather-proof materials.

screener

DRUM DESIGN

The Gentle Roll™ screener uses simple gravity and mild centrifugal force to screen product. The flights extend to the edge of the screen. The drum and screen rotate together as one assembly to prevent the drum from grinding the product. Screening efficiency is maximized at 25 sq ft of screening area per section.

screener
screener

INSTALLATION

  • All Gentle Roll™ units should be installed on a level, horizontal plane.
  • Foot mounting, suspension, or a combination of both is acceptable.
  • Rigid or loose mounting is acceptable, because the Gentle Roll™ does not vibrate, nor does it have horizontal/vertical movement during operation.
  • A 24” clearance is recommended on all sides with the exception of the bottom. Consult engineering for minimums.
  • Spouting to and from all flange connections is possible. Mate flanges come with all units.
  • Typically, the Gentle Roll™ ships assembled. Hoppers and legs can be removed if needed.
  • Multiple drum units are modular. Each level is lifted and stacked separately during installation.

MAINTENANCE

Very little maintenance is required. Recommended maintenance points:

Gentle Roll™

  • Grease main bearings on each end of drum
  • Proper adjustment of drum seal
  • Inspection of screens
  • Check fluid level on gearbox


Sidewinder™

  • Belt tracking
  • Inspection of flights and belt
  • Inspect air take-up
  • Check fluid level on gearbox


* Intervals will vary based on use

CONSTRUCTION

  • The Gentle Roll™ unit is made of mild steel (stainless steel, optional), and powder coated or hot-dipped galvanized.
  • Every Gentle Roll™ is built to run continuously and is fully enclosed to provide dust control and weather proofing.

DRIVES

Each Gentle Roll™ drum is individually powered by its own drive assembly, with a minimum class II service factor. The speed reducer is a standard, off-the-shelf, shaft mounted, reducer. V-belts & pulleys are used, allowing speed changes if necessary. When cleaning products require minor speed changes, an adjustable frequency controller is used.

SCREEN REPLACEMENT

  • The time it takes to change screens is approximately 8 – 10 minutes.
  • Access is gained by removing the light-weight aluminum door. Each screen section has one door.
  • Retention: (5) 5/16” bolts hold the screen to the drum. Hand or power tools can be used.

SCREEN SELECTION

The product to be screened determines the wire size, clear opening, & materials used to meet desired outcome. The standard model 24 will have 48” wide screens, rolled to fit 24” diameter drums.

SCREEN BLINDING (PLUGGING)

Screen blinding occurs when a product lodges into a screen opening. Shaking or vibrating screeners use balls in an attempt to prevent screen blinding. This “hammer” action is effective in removing lodged product. But over time, the constant impact can result in product and screen damage.

In order to minimize screen blinding, the Gentle Roll™ screener uses a free-rolling, rotary brush to sweep against the screen as the drum rotates. The brush gently pushes the particles back into the drum. This solution has been tested successfully on many different applications.

Typically, the Gentle Roll™ maintains screening efficiency without the use of brushes. During the gentle rollover action, larger product rubs against the lodged particles, breaking it free from the screen.