Magnetflex® system
The MCC Magnetflex system has become the worldwide standard in the beverage industry. The great advantages of
this patented system have made it the choice of the worlds leading OEMs. It is a Combi system for both plastic and steel
chains. Magnets underneath the track hold the chain down in a reliable way.
Magnetflex is the only system where two magnets cover almost the complete base of the curve instead of just the track.
Because the magnets are connected by a steel plate, a very broad magnetic field is being formed. Unlike other magnetic
curves this results in a force that keeps down plastic chains with steel pins just as well as steel chains. Another advan-
tage is that this magnet position only has a slight reduction in hold-down force when the chain is being lifted, in case of
pollution or broken glass, without jumping from the track. Where in other systems the chains can block and jam in the
curve profile due to pollution, in the Magnetflex system the chain simply lifts slightly and keeps on running. The magnets
are placed in the curve at fixed angles instead of at fixed distances to make sure that no pulsation effect is being created
by the magnets, when a chain is being pulled through the curve.
MAGNETFLEX CURVE WITH 2 MAGNETS FOR BETTER HOLD-DOWN OF THE CHAIN USUAL MAGNETIC CURVE WITH ONLY 1 MAGNET
The magnets make sure that all chains lie perfectly flat in the curve without tilting. In other systems the chain tension is causing the chain to use up the play in the chain guidance, causing chain edges to lift. Especially in multiple-strand curves and with high-speed conveying this means product toppling.
Another big advantage of the Magnetflex system is the easy installation of the chains and the perfect cleanability of
the system. This is due to the open and rectangular track in the curve. The chains can easily be installed from above as
if the curve was a straight part of the conveyor. Also the chains can easily be lifted from the track for maintenance and
cleaning, without breaking the chain or even removing it from the conveyor construction.
Magnetflex curves can be installed in the conveyor frame in different ways. The upper and return part can be supplied
bolted together and with inserts to mount the assembled curve into the conveyor frame. The option most often used
in multiple track curves is to deliver the upper and return part separately. They are then mounted against a conveyor
crossbar. In this case both upper part and return part are equipped with inserts and/or holes. In both build-in options
the hole and inserts can be standard or customer specific.
Most Magnetflex curves are equipped with a return guide shoe. This machined shoe is meant to bring the chain at the
right level to enter the return part of the curve. The position of the return guide shoe is determined by the design of the
return part (level or staggered) and by the chain type. A staggered design is used when the pitch between the tracks
is too small to allow the chains to run at the same level in the return. In that case two levels of tracks are made in the
return part: one level in which the uneven tracks (1, 3, 5 etc.) run and one in which the even tracks run. The height of a
staggered return part (usually 63 mm) is always higher than that of a non-staggered return (usually 55 mm).
A special execution of a Magnetflex curve is a CIP (Cleaning in Place) curve, equipped with spraying nozzles and tubes.
It is opened up as much as possible to allow good cleaning of the steel or plastic chain and curve profile from the inside
of the curve. The CIP curve can be integrated in an existing CIP system.
Magnetflex curves are available in four different materials. The standard material,
Combi-A, is a high grade of polyethylene. It is suitable for most lubricated applications
with steel and plastic chains. In clean environment and with low chain speeds Combi-A
can also be used in dry running applications. For dry running applications with plastic
TableTop chains Combi-L and Combi-S are recommended. These materials are able
to work with higher chain speeds. Combi-S has the largest application field, where
Combi-L offers better noise reduction. Rexnords calculation program determines the
PV (pressure-velocity) load on the curve in a specific application and will advise in which
application load and speed require Combi-L or Combi-S curves. For lubricated, abrasive
applications (filler discharge) or abrasive, dry running applications (glassworks) with
(stainless) steel chains, Combi-G is most suitable. This ceramic reinforced polyethylene
offers an extremely good wear resistance.
Tab and Bevel
In many industry segments Tab and Bevel curves and straight tracks are an economic solution if stability of the product
conveyed, cleanability and ease of installation are not the key areas of interest. They are available for TableTop, Multiflex
and Plate Top chains. Tab and Bevel machined profiles retain the chains in a mechanical way. For these tracks a high
grade, wear resistant polyethylene is used. As a standard they are black, but in special circumstances they can also be
made in the materials for Magnetflex curves. The tracks are supplied according to the industry standard dimensions, with a separate (most common) or combined
upper and lower part. Both parts can be installed separated by a conveyor cross bar, or using inserts from the side.
Tab and Bevel descriptions, such as KTU013 500 1, indicate respectively type, radius and number of strands.
The code number includes both upper and return section.
Customized curves
There are over 50 standard executions for different chain widths, chain types, chain pitches, materials, in- and outfeed
lengths and hole/insert patterns. If these standard versions do not meet specific conveyor needs, it is possible to order
customized versions. For this the following parameters must be defined: Chain type and width, basic width (width of
a single track curve), radius (until the center of the first track), in- and outfeed length (straight section before and after
the curve), pitch between the tracks, angle of the curve, number of tracks, height of the upper part, height of the return
part, size and position of any holes, size and position of any inserts and insert size of any return shoe. Both standard and
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