The centralized system broke the materials into two separate
banks, with "dew point control" enabling each bank of hoppers to
maintain different moisture levels in the material. The quick change
manifolds allowed for quick change of materials for a given machine
by simply moving a hose from one connection to another,
Purge valves in the system keep the lines completely clean between material
loads, so that when colors or material types are changed, there is no
contamination.
The hoppers are sized so that there is always material ready to go on a
moments notice without the need to wait for pre-drying, and the "over dry
protection" prevents the material from getting too dry.