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Additive Feeders Chapter 2: Functional Description 13 of 55
Extruder Following Feature
• This feature allows the additive feeder to automatically increase or decrease the
material feed rate as the extruder screw speed changes.
Quick Change Supply Hopper
• 0.3 cubic foot capacity hopper with slide gate allows for rapid change of additives
Supply Hopper Covers
• Hopper mounting cutout for vacuum receivers
• Hopper loader mounting cutout for hopper loaders
• Blank cover available for custom cutout
Additional Auger Assemblies
• Switch augers for changing process throughputs
Mounting Adapters
• Special main throat and flanges can eliminate transitions and accommodate different
machine hoppers
2-5 Accessories
Low Level Alarm
• Audible/visual alert to allow supply hopper level to avoid feeding straight resin into
the processing machine
• Remote mount
• Advisory or process interrupt capability
• Alarm silence/acknowledge button
Drawer Magnet
• Removes tramp metal from the process stream
2-6 Safety Devices and Interlocks
This section includes information on safety devices and procedures that are inherent to the
additive feeder. This manual is not intended to supersede or alter safety standards established
by the user of this equipment. Instead, the material contained in this section is recommended
to supplement these procedures in order to provide a safer working environment.
At the completion of this section, the operator and maintenance personnel will be able to do
the following:
• Identify and locate specific safety devices.
• Understand the proper use of the safety devices provided.
• Describe the function of the safety device.