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…
Leading Manufacturers
Eriez
Erie, PA | 814-835-6000ERIEZ 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.
Carrier Vibrating Equipment, Inc.
Louisville, KY | 502-969-3171Carrier 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.
Rodix Inc.
Rockford, IL | 800-562-1868Rodix 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.
JVI Vibratory Equipment
Houston, TX | 832-467-3720JVI Vibratory Equipment is a leading provider of vibratory process solutions. JVI manufactures vibratory feeders, screens, spiral elevators, conveyors, & grizzlies – all custom designed and manufactured specifically to meet the customer’s exact application requirements. JVI incorporates dry bulk material handling expertise with years of experience to provide innovative, custom machines unsurpassed in quality and performance. For more information, visit us online at www.jvivibratoryequipment.com
Martin Vibration Systems Solutions
Marine City, MI | 888-920-1933Martin 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.
Autofeed Corporation
Brantford, ON | 905-648-8200Over 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.
Grizzly Screens - General KinematicsAble 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.
