The dehumidifying drying feeder combines dehumidification, drying, and two-stage feeding functions, ideal for engineering plastics like PA, PET, PC, and PBT due to their high moisture absorption. Notably, the optical grade GCD-OP model suits applications involving lenses, LCD light guides, and optical discs, achieving a dew point as low as -40°C under optimal conditions.

Usage Insights:

In plastic processing, issues like shrinkage, streaks, bubbles, and poor transparency often arise due to inadequate pre-molding drying. Highly hygroscopic raw materials such as PA, PET, PC, PBT, and CA retain moisture within their particles, which traditional dryers struggle to eliminate. Effective drying demands lowering the air's dew point below -40°C and controlled heating to extract moisture from the plastic particles, achieving less than 0.02% moisture content before molding. The sealed 3 in 1 machine dehumidification dryer efficiently dehumidifies and heats the air in a closed-loop system, ensuring thorough drying.

Operating Principles:

The dehumidification and drying section cools and absorbs moisture-laden air in a honeycomb runner, using a rotor to adsorb and desorb moisture, creating stable low dew point air 

for drying raw materials in a closed cycle.

The auto loader section transfers materials into the drying barrel from storage, employing a vacuum hopper and magnetic reed switch to initiate suction, ensuring a continuous material 

flow into the drying barrel.

Product Highlights:

1:Integration of dehumidification, drying, and two-stage feeding functions.

2:Dehumidification section equipped with a wheel device for stable low dew point air, reaching below -40℃.

3:Stainless steel double-layer insulated drying barrel designed for uniform drying and minimal heat loss.

4:Feeding system with a cut-off valve to prevent residual material in the pipe.

5:Closed loop feeding system to prevent contamination or moisture regain.

6:Optical grade GCD-OP model with a boiling electric eye hopper to eliminate fine powder and prevent contamination.

7:High-efficiency filter with a 99.9% filtration rate for particles up to 0.3μm.

8:Optional PLC control with LCD touch interface for centralized operation.

9:Optional dew point detection device for added control.