Whisper Loaders

Pneu-Con Whisper Loaders

Self-Contained Systems

Pneu-Con’s proven 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 system operates on a batch principle. They come with an adjustable timer for conveying, and with a proximity switch to initiate the process.

With 0.25 to 4.25 cubic ft. capacities, Whisper Loaders can also be outfitted for Gravimetric operations. Adding a high-level probe and slide gate will allow you to refill 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 with adjustable timers, and built-in curcuit 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.

WHISPER 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

Whisper Loader offers a complete vacuum conveying system that affords ease of operation and low maintenance, reducing the cost of producing your finished product.

Consult Pneu-Con for available options.

Pneu-Con manufactures a complete line of Central Powered Conveying Systems, Whisper Loader® Self-Contained Systems, Blower Packages, Bag Dump Stations, Day Bins, Silos, Volumetric/Gravimetric Blenders, Tilt Stations (Drum & Gaylord), Powder Loaders, Powder Receivers, Bulk Bag Racks, Vertical Mixers, Weigh Hoppers/Batchers, Rotary Airlocks. Railcar Unload / Pull-Pack Systems, Just-In-Time Loaders & Fines Separators.

Other Models


Whisper Loader SC1250


Whisper Loader SC1500


Whisper Loader SC1500


Whisper Loader SC1500


Whisper Loader SC1500

Sound Hood

Sound Hood

Pneu-Con Product Lines