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Grizzly Screens

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Most often used for pre-screening, the typical feed materials that require grizzly screens versus the typical vibrating screen are very coarse aggregates. Read More…

Grizzly Screens A grizzly screen, also referred to as a grizzly scalper or a grizzly feeder, is an extremely rugged type of low horsepower vibrating screen that is placed between a vibrating feeder and a primary crusher.
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Leading Manufacturers

Erie, PA  |  814-835-6000

ERIEZ is a global manufacturer of an entire range of vibratory feeders and related machinery. We serve all the process industries, including food, chemical, pharmaceutical, ceramics, glass, packaging, metalworking, minerals processing and others.

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Eriez $$$

Louisville, KY  |  502-969-3171

Carrier Vibrating Equipment, we pride ourselves on our extensive customer base and our commitment to excellence. We know that the grizzly screens you receive from us are the best in the business. Carrier continues to bring new technology to the market, as well as new value to existing technology through its research and development lab, to make sure they remain at the front of the industry.

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Carrier Vibrating Equipment, Inc. $$$

Rockford, IL  |  800-562-1868

Rodix manufactures vibratory feeder controls, inline track drives, drive bases, & bulk storage hoppers for part feeding systems. Our line of vibratory feeder controls feature variable amplitude, variable frequency, line-voltage compensation, UL/cUL Listed, CE Marked, and more. We have experience working with machine integrators, vibratory feed system builders, and manufacturers.

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Rodix Inc. $$$

Walnut, IL  |  815-379-2090

TCI Manufacturing has been a leading manufacturer of vibratory feeders since 2000. We pride ourselves on our top-of-the-line vibratory feeders and our communication with customers. Whether you are looking for a product in one of our lines or a custom design, our staff is here to help. Contact us today!

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TCI Manufacturing $$$

Rochester, NY  |  800-724-6735

CDS Manufacturing is a manufacturer of vibratory feeders, parts feeders, bowl feeders, and linear feeders. CDS Manufacturing designs high-quality feeding equipment to be used in a wide variety of applications including light bulb filaments, balloons, ball bearings, molded plastics and more.

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CDS Manufacturing $$$

San Dimas, CA  |  909-599-8087

At Carlson Engineering & Manufacturing, we provide vibratory feeders, assembly machinery and assembly systems. We have a variety of products and operator controlled systems including screw feeders, step feeders, hand pieces, tool stands, testers, spindle systems and robotic assembly machines.

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Carlson Engineering & Manufacturing $$$
placeholder image Eriez Carrier Vibrating Equipment, Inc. Rodix Inc. TCI Manufacturing CDS Manufacturing Carlson Engineering & Manufacturing

Able to handle both wet and dry materials, grizzly screens often handle materials such as minerals, ore, blasted or ripped rock, gypsum, foundry materials and large stone. Grizzly screens can offer multiple sizing decks on a single unit as well as side plates that provide additional height to ensure that large materials stay on the screen.

Grizzly screens can provide either linear or circular motion and each type offers its own advantages. Linear motion grizzly screens work best for scalping ahead of primary cone crushers in mining applications, while circular motion grizzly screens for heavy duty medium to fine pre or post-screening.

Primarily used for the heavy duty screening of undersized materials in bulk material handling applications, the most common industries that utilize grizzly screens include mining, construction, foundry, recycling and industrial.

Most often fed through either a pan or apron feeder, grizzly screens consist of an inclined or horizontal screen with parallel sets of grizzly bars that are held by spacers at varied openings depending on the size of the material being screened.

The grizzly bars are often constructed of manganese steel, but can also be made from ceramic materials. Typically, grizzly screens consist of a screening body is connected to a tray; materials enter the vibrating screen through a feed box located at the base of the tray. The vibrators are often either electromagnetic or electromechanical, and are placed at intervals underneath the screening body. While electromechanical vibrators are more common and simpler in design, electromagnetic vibrators offer a smoother conveying motion.

The suspending device supports the structural framework that the screens are mounted on and are typically either leaf springs or steel coil springs. These springs serve as shock absorbers as well as ensuring that the vibrations occur at a natural frequency. An electric motor is attached to the structural framework and causes the materials to be vibrated in a specific direction.

Grizzly screens are able to provide either linear motion or circular motion through the use of roller bearings, shafts or couplings.

Grizzly Screens Informational Video