Dings Magnetic Group GRATE MAGNET - Manual

IMPORTANT
Any magnet which accumulates iron on its surface will
gradu ally decrease in separating efficiency as metal
accumulates. As more of the magnetic strength is required
to hold captured iron, less strength is available to attract
additional iron. Effi ciency may decrease to the point of
allowing iron to get past the magnet entirely.
Therefore, it is important to peri odically inspect and clean
the tubes to maintain maxi mum separating efficiency.
As grate magnet tubes are made of thin-walled stainless steel,
care should be taken during cleaning to prevent damage to the
tubes. During cleaning, inspect the housing, drawer, tubes, and
gaskets for damage.
OPERATING TEMPERATURE
• Operating temperature for ceramic magnets is
-40°F through 482°F (-40°C through 250°C).
• Operating temperature for rare earth magnets is
176°F (80°C) or less.
NOTE: Extreme temperatures may affect the performance of the
magnet. Refer to Bulletin 1214T.
TYPES OF GRATE MAGNETS
Standard Housed Grate Magnets
The grate drawer contains one or more banks of magnetic
tubes in a housing.
Easy-Clean Housed Grate Magnets
The grate drawer contains one or more banks of tube
within-a-tube assemblies. (Internal assembly of magnetic
tubes is inserted into the drawer tubes.) Rare earth or a
combination of rare earth and ceramic is recommended
for easy-clean models.
Unhoused Grate Magnets
Grid, plain frame, drawer, or wing without housing.
CLEANING
In single drawer applications, the product flow should be shut
off before removing any drawer. In multiple drawer applica-
tions, it is possible to clean one drawer at a time without
shutting off the flow. (This is not recommended for very
dusty material.)
The amount of iron in the product stream will determine the
frequency of cleaning required for effective separation.
Standard Housed Grates
1) Open the latches holding the drawer assembly within
the housing.
2) Carefully pull out the drawer until the stops catch the
housing frame. The drawer assembly can be totally
re moved at this point by lifting up on the handle.
Use caution, however, as the drawer can be heavy.
3) After removing the drawer assembly from the housing,
remove any large tramp iron pieces. Using a clean,
non-greasy cloth, wipe the grate to remove any remaining
fuzz iron. In the case of rare earth grate magnets, adhesive
tape can also be used to thoroughly remove fuzz iron.
4) Reinsert drawer into housing and secure the latches.
Easy-Clean Housed Grate Magnets
1) Open the latches holding the drawer assembly within the
housing.
2) Carefully pull out the drawer until the stops catch the
housing frame. The drawer assembly can be totally
re moved at this point by lifting up on the handle. Use
caution, however, as the drawer can be heavy.
3) With the drawer outside the housing, unscrew the two
captive screws on the drawer face.
4) Pull out the magnetic tube insert assembly as far as the
coated wire permits. The captured fuzz iron will fall off the
tubes. You may wish to hold a pan under the tubes to catch
the iron.
NOTE: Do not remove the magnetic inserts without first pulling
out the drawer as far as it will go or some fuzz iron may drop
back into the product.
5) Push the tube assembly back into the drawer frame,
re place the two captive screws, push the drawer assembly
into the housing and secure the latches.
Unhoused Grate Magnets
The cleaning procedure for unhoused grate magnets is
basically the same as for standard housed units: Simply
remove the grate from the product flow area and remove as
much accumulated fuzz iron as possible. Reinsert magnet.
BULLETIN NO. 1213F
Date 5/13
4740 W. ELECTRIC AVE.
s MILWAUKEE, WI 53219 s 414/672-7830 s FAX 414/672-5354 s www.dingsmagnets.com
GRATE MAGNET
Operating, Cleaning, and
Maintenance Procedures