Vacuum receivers, also called vacuum chambers, vacuum stations, or just stations, are integral parts of a central conveying system. Think of them as intermediate holding points for resins conveyed by vacuum. Vacuum receivers have one primary job: separate material from air. They accept resin from a source that is pulled by vacuum, separate the material from the air flow and transfer that resin to a destination.
Vacuum receivers come in several designs with all sorts of features aimed at offering a variety of advantages in conveyance, maintenance, and ease of use. Some receivers are designed for pellets, some for regrind, and others for powders.
Some receivers mount atop hoppers or bins; others are mounted directly to the throat of a processing machine.
All receivers have a sequencing device. Some receivers require a separate sequencing valve to connect to the vacuum line; others have a built-in fill valve. The sequencing device allows vacuum to pull material into the receiver and while the bulk of the material falls to the bottom of the receiver, the vacuum pulls the air up through the top of the receiver and back to the vacuum pump.
