TE & TFH Fluff Feed Hoppers0 pages

TFH SERIES FLUFF FEED HOPPERS
B L E N D
&
BLEND AND RECLAIM
R E C L A I M
TFH SERIES FLUFF FEED HOPPERS
AEC fluff feed hoppers are designed to feed a percentage of the fluff
directly back into the extruder throat. The unique dual-stage design ensures
that the fluff is mixed with the virgin material above the extruder throat.
Each auger is independently adjustable and can be set to follow the
extruder screw speed by monitoring a tachometer signal from the extruder.
TFH fluff feed hoppers are designed to feed edge trim and roll scrap back
into an extruder at a maximum rate of 30% of the extruder output. The
TFH-HP is designed for those applications where scrap re-feed greater than
30% is common. NOTE: Cannot be used with grooved feed throats
Model TFH 450
STANDARD FEATURES
• NEMA 12 enclosure
Model TFH 600-HP
• IR compensation
• Up to 25% maximum re-feed rate1
• Dependable auger metering
OPTIONAL FEATURES
• Machine-mount flange
• Special voltage
• Mild steel material contact surfaces
• 90º feed pedestal
• Independently-adjustable vertical mix auger and horizontal fluff
metering auger
• Special design feed pedestal
• Fluff hopper with bottom clean-out door, includes safety switch
• Special mounting flange or throat adapter (extruder
throat and flange drawings required)
• Individual speed adjustments using variable-frequency drives
• Special cyclone hole in fluff hopper cover (exact
specifications required)
• Digital speed potentiometers
• Fluff hopper bridge breaker
• Cyclone separators
• Extruder following signal isolator
• Horizontal and vertical drive NEMA MG-31 AC inverter-duty motors
• Optical level sensor with delay timer for field connection to grinder feed
rolls and alarm device
• Ammeters for each drive motor
• Each auger (horizontal fluff feed and vertical mixing) can be
adjusted independently, using the controls on the front panel.
1 Fluff feedback rate is based on a non-extruder limited line, recycling 1.25 mil medium slip
LDPE film. Extruder speed increase may be required to obtain maximum quoted feed rate.
If extruder is running 100% plasticizing capacity on virgin material, loss in output may occur
during fluff feeding.
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