Grizzly Screens

A reliable source for Vibratory Feeder information and leading Vibratory Feeder Companies & Manufacturers.

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

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.

Leading Manufacturers

Erie, PA  |  800-345-4946

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. We also offer feeding machines so that all of your needs can be met. Please contact our company for a quote today!

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Eriez $$$

Louisville, KY  |  502-969-3171

Internationally known, Carrier Vibrating Equipment specializes in manufacturing vibratory feeders and screeners. We have been pioneers in process equipment technology for over 60 years. Our economical products are easily installed, offering minimum downtime and low maintenance. Our equipment serves industries such as chemical, glass, dairy, pharmaceutical and explosives.

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Carrier Vibrating Equipment, Inc. $$$

Crystal Lake, IL  |  815-455-3222

At General Kinematics, we design and manufacture vibratory feeders, conveyors and more for applications in foundries, recycling mining, coal and food processing. We are always working on new, creative designs for our customers that are cost effective in pricing. We have the expertise and knowledge to respond to your objectives for efficient, dependable, products.

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General Kinematics $$$

Marine City, MI  |  888-919-5568

Martin is the leader in industrial vibrators and vibration systems and solutions. We provide the quietest and most energy efficient vibratory feeders, hoppers and compaction tables available and a host of other products to make material flow easy. Martin serves a wide range of manufacturing industries which use our equipment to improve productivity and safety all while increasing the bottom line.

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Martin Vibration Systems Solutions $$$

Hamilton, ON  |  905-648-8200

Over 20 years as a vibratory feeder manufacturer, Autofeed has an outstanding reputation nationally & globally for offering the finest in parts handling equipment & service. A skilled & creative staff knows the best vibratory bowl feeder, elevator feeder or rotary parts feeder configuration for loading & discharge of delicate electrical components & plastic moldings to large springs & castings.

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Autofeed Corporation $$$

Grimsby, ON  |  800-313-8655

VTR was established in 1995 as a single man operation founded on the premise of creating reliable, efficient parts feeding solutions. Now, just over a decade later, VTR is an industry leader in the busy Canadian automation field with an eye to ever expanding markets worldwide.

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VTR Feeder Solutions $$$
placeholder image Eriez Carrier Vibrating Equipment, Inc. General Kinematics Martin Vibration Systems Solutions Autofeed Corporation VTR Feeder Solutions

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