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Sifting & Screening Solution

Pneumatic In-Line Screeners

Scalp in-line with pneumatic conveying systems

This Pneumati-Sifter vibratory separator employs twin screening decks for in-line pneumatic scalping or dedusting of up to 60,000 lbs./hr (27,200 kg/hr) of free-flowing material in-line with dilute-phase pneumatic conveying systems.

The chambers above the top screen and below the bottom screen are connected by a central bypass chute, causing on-size material entering the central chamber to reach the bottom outlet via two pathways: upward through the top screen then downward through the chute; or downward through the bottom screen. Oversize material is ejected through a spout at the periphery of the lower screen.

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Product Details

The upper and lower screens are readily changed, or the entire unit disassembled for thorough wash down, by loosening all quick-disconnect clamps and the band clamps that connect housing sections, then activating the Air-Lift device to separate the sections as required.

A tangential inlet along the horizontal centerline of the central chamber prevents material from impacting screens at 90° angles. Gradual changes in flow stream direction minimize breakage of oversize foreign material and subsequent material contamination, and reduce screen breakage significantly.

The unit is equipped with "ball tray" anti-blinding devices to dislodge near-size particles from apertures in the upstream side of upper and lower screens, and is intended to remove oversize particles from plastic resin, flour, starch, sugar, and numerous food and chemical products gently, at ultra-high rates. Applications include loading and unloading of trucks and railcars, and conveying of material between process or storage areas.

Offered in 48" (1219 mm) and 60" (1525 mm) diameters, the twin-screen machines are available to 3-A, FDA, BISSC and other sanitary standards.

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Options

  • "Air-Lift" Quick Screen Change System
  • "Clamshell Lid" Quick Screen Change System
  • Clean-In-Place (CIP) Design, Construction and Finish
  • Design, Construction and Finish to Pharmaceutical Specifications
  • Ball Tray Anti-Blinding Device
  • Auto-Lube Automatic Lubrication System for gyratory motors
  • Design, Construction and Finish to FDA, 3-A, BISSC, EEC and other sanitary standards

Principle of Operation

The chambers above the top screen and below the bottom screen are connected by a central bypass chute, causing on-size material and air entering the central chamber to reach the bottom outlet via two pathways: upward through the top screen then downward through the chute; or downward through the bottom screen. Oversize material is ejected through a spout at the periphery of the lower screen. A tangential inlet along the horizontal centerline of the central chamber prevents material from impacting screens at 90° angles, minimizing screen damage and the breakdown of oversize foreign material into on-size contaminants.

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Product Types

Ultra-High Capacity In-Line Pneumatic Sifter

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"Air-Lift" Allows Rapid Cleaning and Screen Changes

Pneumati-sifter ultra-high capacity in-line viratory screener includes an "Air-Lift" device that allows rapid disassembly, cleaning, inspection and screen changes.

The upper and lower screens are readily changed, or the entire unit disassembled for thorough wash down, by loosening all quick-disconnect clamps and the band clamps that connect housing sections, then activating the Air-Lift device to separate the sections as required.

Dual Screen Ultra High Capacity Screener

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Gently Scalps In-Line with Pneumatic Conveying Systems, at Ultra High Rates

Offered in 48" (1219 mm) and 60" (1525 mm) diameters, the twin-screen machines are available to 3-A, FDA, BISSC and other sanitary standards, and can be disassembled rapidly for thorough wash down. A range of accessories is available including clean-in-place spray heads and quick-release clamshell lids for rapid screen changes.

Pneumati-Sifter High Capacity Vibratory Screener

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Scalps In-Line with Pneumatic Conveying Systems Gently, at High Rates

Pneumati-sifter separators scalp dry materials in-line with dilute-phase pneumatic conveying systems at high rates, removing oversize particles and foreign materials from plastic resin, flour, starch, sugar, and numerous food and chemical products. These pressurized systems are ideal for loading/unloading of trucks or rail cars, or conveying materials between process or storage areas. Available in diameters from 24" to 60" (610 mm to 1530 mm) to handle up to 30,000 lbs./hr. (13,600 kg/hr), depending on material. For higher capacities see Pneumati-sifter dual screen model. Also see Pneumati-sifter centrifugal separators for screening in-line with pneumatic conveyors.

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