Whisper Loaders

Pneu-Con Whisper Loaders

Self-Contained Vacuum Conveying Systems

Whisper Loaders offer easy operation, low maintenance & cost savings.

Pneu-Con's Whisper Loaders are self-contained vacuum conveying systems which operate automatically to maintain a constant material level in day bins or a receiving hopper, which can be located above injection, extrusion or blow molding machines. Each self-contained conveying system operates on a batch principle. They come with an adjustable timer for conveying, and a proximity switch to initiate the process.

With 0.25 to 4.25 cubic ft. capacities, Whisper Loaders can be fitted for gravimetric applications. Adding a high-level probe and slide gate will allow you to refill material with a signal from a feeder.

Whisper Loader

Key Features:

  • Automatic high-level control of the process hopper using a proximity switch.
  • 120 volt power, pre-wired with power cords.
  • NEMA 1 control panel, Solid State PLC controller, adjustable timers, built-in circuit breaker.
  • Tool-less lid removal for filter maintenance.
  • Sound attenuation cone, (standard on SC1500 and SC1750 models)
  • 10 to 20 feet of flexible hose, depending on model.
  • Operates as a self-contained, stand-alone system.

Loader Options:

  • Available in Pellet, Vibra-Pulse or Powder orientation.
  • 120 or 240 Volt power.
  • NEMA 12, 4 and 4X hinged enclosures.
  • Variable speed controller.
  • Flanged discharge for batch/gravimetric applications.
  • Proportional loading of two (2) products with Interblend.
  • Available in Aluminum, Carbon steel, 304 & 316 Stainless steel.

Whisper Loader Base Models


Whisper Loader SC1250


Whisper Loader SC1500


Whisper Loader SC1750


Whisper Loader SC2000


Whisper Loader SC2500

Whisper Loader Options

Sound Hood

Sound Hood


variable speed control


Vibra Pulse

Filter Media

filter media options

Portable Hopper

portable hopper

Proportional Loading with Interblend

Proportional loaders allow for the alternate conveying of two (2) different materials. Interblend is a static internal blender used to prevent layering in a proportioning loader.

To learn how a proportional loader with interblend can benefit your material blending process, please contact us.

proportional loading with interblend

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