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PMR Feeder Terminology
All Precision PMR Rotary Feeders are built with a "helical" rotor that shears material as the
rotor turns into the stationary knife. The scissoring action creates "clean" cuts and is energy
efficient.
The hinged access door allows service technicians to inspect the knife, adjust the knife as
needed, and visually inspect the rotor pockets in the event of a jam or blockage of the feeder
The brass seals in the endbells form a seal up against each rotor end in order to minimize the
flow of pressurized air that might migrate up through the feeder in a pneumatic conveying
application. The fit of the brass seals against the rotor ends is maintained with the adjusting
bolts in each endbell.
In most cases, the rotor body is attached to the drive shaft with internal keys and keyways and
held in the proper lateral position with taperlock bushings and hubs. This design makes it
possible to replace either the rotor body or the drive shaft without replacing the other if only
one is damaged.
Page 8
Updated June 2018
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