Rota-Grate
®
and Automated Rota-Grate
®
Magnetic Separators
7
WARNING
Automated Rota‑Grates have pinch points inside
the grate and pneumatic drive housing. There are
moving mechanical parts driven by the cylinders.
Workers must be instructed not to perform
maintenance on this equipment unless it is turned
off and the air supply and electric power are locked
out. Failure to observe this precaution may result
in serious personal injury.
Tube magnets are very strong and will
instantaneously attract to each other, any iron,
steel railing, or beams in the cleaning area. The
tube magnets in the Automated Rota‑Grate are
not intended to be removable. However, if removed
from the rotor, the tubes must not be brought
within 12" (300 mm) of any iron or steel structure
or objects. Failure to observe this precaution may
result in property damage, hand crushing or other
serious personal injury.
AUTOMATED ROTA‑GRATE
®
MAGNET
1. For solenoid valves and air preparation unit
maintenance, refer to the manufacturer’s
instructions packed with the shipment.
2. No adjustments should be made on the
pneumatic cylinder take-up or flow valves.
These items have been preset at the factory.
3. If the unit does not complete the cleaning
cycle, check to see if the support channel is
contacting the limit switch on each end of the
stroke (refer to Figure 4). The limit switch arm
can be adjusted Move the limit switch roller arm
on the grooved spline in the direction of the trip
lever or adjust the roller arm length or both.
Minor contact between the support channel
and mechanical safety stop is normal.
4. unit is automated
not
self maintaining. Clean
inside the pneumatic drive housing on a regular
schedule, depending upon the environment
and the material processed. It’s important that
no product be allowed to build up (caused by
dusting or material passing through the tube
wipers). Clean magnet tube and product area
buildup as necessary.
1. High Temperature
Standard rare earth magnet circuits should
not be subjected to temperatures in excess of
150°F (65°C). Special circuits are available for
higher temperatures.
2. Direct Current
welding equipment should not be used on or
in close proximity to Eriez permanent magnet
circuits. Demagnetization can result from this.
3. Moisture
The raw magnet material should not be
exposed to liquids. This would normally only
result from breaching the magnet enclosure.
4. physical Abuse
The magnet castings are brittle, and when
subjected to repeated abuse such as banging
on a table or dropping on the floor, the castings
may shatter and the tubes may crack. Over
time, abuse will cause the magnetic field will
diminish.
Factors that Affect
Magnet performance
Alteration or disassembly of the assembly would
disturb a carefully engineered magnetic circuit
which could only be restored by returning the unit
to our factory for rebuilding and recharging.
Repair, alteration or disassembly of this magnetic
equipment in the field without written authorization
and instructions by Eriez nullifies the responsibility
and guarantee of the manufacturer.
Repair & Alteration
