NBS®90 PolySort & SP IOM
P/N: 1193974
Revision Date: 4/25/2019
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Chapter 4: NBS
®
90
P
OLY
S
ORT
A
PPLICATION
G
UIDELINES
NBS90 PolySort Selection
Due to the high degree of polybag variance and physical characteristics of typical contents (e.g. pliable,
irregular, light, loose, etc…) it is vital for the Systems Integrator to fully understand the physical
parameters of all conveying products and how well it should perform for the full product range expected
to convey. It remains the responsibility of the Systems Integrator to ensure that the equipment
proposed is capable of handling the products in the manner desired.
The Polysort unit is designed specifically with polybag handling in mind, as shown by the
following features:
•
Transfer Tubs have extra high lift and drop above/below the conveying surface by 1/2” to allow
for loosely packed polybags.
•
Belts and Divert Rollers are on tighter 2-1/2” centers to help support pliable or irregular
products
•
High friction Divert Rollers stop and convey polybags quickly “on the fly”
o
Note for Carton Handling:
The high friction surface can cause higher center of gravity products to tip at
high speeds and rates. Generally, products convey well if the center of gravity
is no more than 25% of product width or height.
Consult with Applications
Engineering for your specific application.
•
Transfer Tubs use high performance SEW Movimot drive motors for quick response and high
efficiency
•
Bed Rail connections and infeed points are rounded and scalloped to reduce product snagging
•
Divert Tubs are fitted with infeed ramps between each lane to minimize snagging and
maximize rate
•
Small Array Photo Eyes are used to sense products 5mm thick
Given the above design features, the nature of conveying products with irregular or loose conveying
surfaces are not guaranteed. TGW has tested a wide range of products contained in polybags with
successful convey with the vast majority of “normal” industry packaged polybags from companies in the
Apparel, Postal/Parcel, and Distribution markets.
Consult with TGW Applications Engineering for your specific needs or to arrange product
testing.
•
Post sort orientation may
not
be maintained. Typical divert is onto a
chute, bin, tub or similar. Consult with TGW Applications Engineering for
specific details or to arrange product testing.
WARNING
