REXNORD - MARBETT - MCC
Multiflex and Case Conveyor Chains
The product program offers a wide range of Rexnord multiflex chains and MCC case conveyor chains. These chains are intended
for single lane product handling in a variety of applications.
Features
Multiflex Chains
These chains use a unique pivot to connect the hinge pin with the chain
link. In standard side-flexing chains the pin and hinge have to deal with
horizontal rotation, due to the sideflexing of the chain in the curve, and
with vertical rotation of the hinge, when moving over the sprocket. The
pivot uncouples these movements, as the hinge pin is only involved in the
rotations because of the chain links moving over the sprocket. The pivot can
rotate inside the chain link, allowing sideflexing in a curve. Due to the pivot,
multiflex chains are ideally suitable for running through multiple curves.
Armor Clad
The 1700 multiflex chains are also available with a hardened steel cover,
the Armor Clad AC 1700 K. Because of this cover the chain is very suitable
to convey parts with a high temperature that could damage a plastic chain
surface. The steel cover gives the chain an excellent wear life, to make it
suitable for part handling in automotive and similar applications
Safety
The ZeroGap 1765, 1775, 1785 and 2565 multiflex chain have a unique
top plate design. The chain surface always stays closed when the chain
is running through a curve or over a sprocket. Both chains are commonly
used in packaging and automotive industry. The 1710 K and 1713 K
multiflex chains also offer surfaces preventing people’s fingers to be
trapped if larger products have to be conveyed.
Case conveyor Chains
These chains have a very robust design, making them ideally suited for
tough applications, such as case and crate handling. They are very open
to deal with the often abrasive debris in these kinds of applications. The
conveyor design for these chains can be very simple, resulting in a very
economic solution for the sometimes very long distances empty or full
crates and cases have to be conveyed in a production line.
Pin design
Both Multiflex and Case Conveyor chains have chain links characterized by
two legs. The pins have a special design to prevent opening up of these link
legs. This results in a high allowable working load.
Corner discs
For multiflex and some sideflexing slatband chains, corner discs can be
used to reduce the friction in the curves, allowing a multitude of curves
within one conveyor.
The use of corner discs is mainly found in conveyors with low-speed part
handling in dairy applications, automotive part handling, tobacco industry,
etc. The N880 drive corner disc with a toothed contour is used to drive
the chain, integrating sprocket and curve function in the corner disc. This
means that no return section for the chain is needed, making the conveyor
design more simple and economic. In this kind of conveyor design however
the amount of pitch elongation due to wear that can be absorbed is limited.
The disc is mounted on the drive shafts by means of a clamping device, for
which standard machine components can be used.
The carry disc is used in the upper part of the conveyor, contacting the
chain in the normal position when it is conveying products. The return
disc is used in the return part of the conveyor, contacting the chain when
it is in the upside-down position.The ball bearing types of corner discs are
recommended for high-speed and high-load applications; ball bearings
are not included. In all other applications corner discs with thermoplastic
bushings can be used. An open corner disc is mounted on the shaft which
needs to run through the disc. A closed corner disc is mounted on top of
the shaft. Some closed versions, such as 880BO, offer the ability to break
out a diaphragm in the closing cap.
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