Grizzly Scalping Screens

Overview

Featuring a rugged, heavy-duty design, Astec inclined grizzly scalping screens can easily handle the high tonnage and lump size required at large primary crushing stations.

Utilizing the TL vibrator mechanism, both single- and dual-shaft models are available. Deep section grizzly bars allow up to 6" nominal spacing without interference from cross members.  Astec inclined grizzly scalping screens are reliable and low maintenance with proven performance.

Applications

  • Aggregates

    There are two main classes of aggregates: natural and manufactured. Deleterious material needs to be removed from both classes. Processing these materials typically requires various steps including reduction and sizing and also may include dewatering and sorting. Producers can use a variety of crushing, screening, dewatering and conveying equipment to meet their desired specifications.
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    • Construction

      Construction projects today depend on an available supply of quality concrete mix. With the most comprehensive line of concrete production equipment in the industry, Astec is ready to help meet that demand.
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    • Concrete Recycling

      Concrete is one of the most recycled materials in the world and can be repurposed several times over. Once the existing concrete is demolished or torn up, it needs to be processed for accurate shaping and sizing using a crusher and screen. 
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      • Construction Aggregates

        Construction aggregate is typically medium or coarse materials like granite, limestone or trap rock, sand, gravel, slag or recycled concrete. Processing this material may include reducing its size with a crusher, sizing the crushed material with a screen and conveying the material into different stockpiles.
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        • Construction & Demolition Recycling

          Construction and demolition recycling (C&D) is mixed material associated with construction and demolition. The material could include wood, cardboard, gypsum, plastic, metal, wire, roofing shingles, asphalt, concrete and more. By separating and recycling different materials it reduces landfill waste and associated costs, while also producing value-added products.
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        • Crushed Stone

          Crushed stone is a versatile product that can be used in a wide range of applications from construction to road building and even agriculture. Processing this material may include reducing its size with a crusher, sizing the crushed material with a screen and conveying the material into different stockpiles. 
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          • Sand & Gravel

            Aggregates, when gathered, may contain clays, silts and other deleterious material that needs to be processed out for commercial-grade products.
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            • Recycled Asphalt Pavement

              Recycled asphalt pavement (RAP) is asphalt paving material recovered from old road beds either by milling or excavation.
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            Key Specifications

            All specifications subject to change without notice.

            Features

            • Construction

              • Huck-bolted basket design
              • Fabricated, J-style deck construction
              • 2-deck models 

            • Drive

              • Oil-lubricated TL vibrator mechanism with "never-wear" sealing system
              • Wide series, self-aligning spherical roller bearings
              • Standard, 20-degree mounting angle with 14-degree grizzly bars

            • Operation

              • Maximum feed size: 42” / 450mm
              • Maximum stroke: .500” / 12.7mm
              • Speed range: 700-900 RPM
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