Dryer adjusts to regions

LPD vacuum dryers now provide faster and more uniform heating, shorter drying time for high-heat resins, and easier adjustment to regional ambient conditions, compared to previous models.

The airflow circuit in the drying canister was redesigned, increasing the speed of a drying process that previously required 1?6 of the time required by a desiccant dryer. The dryer?s preheating capability was increased from 300°F to 365°F, which shortens the drying time for materials such as PET, polysulfone, polyethersulfone, and polyetherimide.

Vacuum calibration capability built into the control software automatically adjusts the vacuum pressure in the dryer to accommodate the ambient conditions at sea level vs. high altitudes, an adjustment that was previously a manual task. The control software can also purge conveyor lines from the dryer to the processing machine, removing pellets that could regain moisture.

A new manifold system conveys to multiple processing lines for easier deployment as a central dryer. A new easy-access surge hopper and a built-in drain chute for emptying resin canisters reduce the time between color or product changeovers.

Maguire Products, Aston, PA
(610) 459-4300; www.maguire.com