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Warnings
1. Lockouts required for this equipment should be installed prior to initial start-up and
operation.
→ These lockouts are not the responsibility of Precision Machine &
2. Rotary feeders can cause severe physical injury if proper safety procedures are not
observed during the course of operation, maintenance, inspection, or clearing of an
equipment jam.
→ The drive motor must be locked out before inspection or service of this
3. Welding or burning on any part of the rotary feeder is not recommended. Any
distortion of the feeder caused by welding or burning could cause the rotor to seize in
the housing.
4. Power and control wiring should be installed by a licensed and experienced electrician
to assure safe and productive operation of the PMR Rotary Feeder.
Introduction
The system operator should fully understand the function of the PMR Rotary Feeder to know its
proper operation. The unit serves primarily as a feeder, to feed a bulk product into an air
stream. The rigid design structure of the housing and rotor help prevent deformation, while the
tight internal clearances minimize loss of air while material is being transferred. The
replaceable knives will shear oversize material to minimize jamming.
The machined tolerance between the rotor and feeder housing maintains the air seal for the
PMR Rotary Feeder. When abrasion causes the hard chromed surfaces to become scored,
pitted, or otherwise worn, gaps for air passage are opened until unacceptable air leakage is
observed. The precisely machined tolerances in the PMR components can be damaged by
tramp metals or maladjustment.
The PMR Rotary Feeder is a precise, accurate, machined piece of equipment. Internal
clearances are held to a tolerance of .001" per side per inch of rotor diameter at ambient
temperature conditions (i.e. 30" diameter rotor = .015"/side clearance) to prevent excessive air
Updated June 2018
Manufacturing, Inc.
equipment.
Page 5
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