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SolutionGuide
uni M-QNB C
Straight Running Belt
Industry
Application
Description
uni M-SNB M3 14%
Straight Running Belt
uni SNB M2 20%
Straight Running Belt
> Can Manufacturing
> Mass Handling (straight running, raw edge down)
> Convey pet bottles from one level to the next
Mass handling conveyors moving raw edge cans appear mainly before and after the washer.
Accumulation will occur in this application.
uni M-QNB C for raw edge down can accumulation
Problems
Solutions
> Problem 1
Withtheunfinishededgefacingdownthecansareveryunstable.
Onsomeopentopplasticbeltstherawedgewillcatchonthe
unevensurfacesofthebeltandcausethemtotip.
> Solution 1
Inthisapplicationitisimportanttohavethebeltsurfaceassmooth
andflataspossible,sothelowcontactsurfacesusedelsewherein
thecanplantarenotrecommendedhere.TheuniSNBM220%and
uniM-SNBM314%weredevelopedforthispurpose.Thesebelts
haveopenareaforcleaningbuthaveaflattenedsurfaceforstability.
IfopenareaisnotrequiredtheuniM-QNBprovidesasmoothstable
closedtopsurface.
> Problem 2
Plasticmodularbeltswillstretchoutduetopinandhingewear.
Thiswillcauseproblemswithsprocketengagementandisthe
typicalreasonthatthebeltwillneedtobereplaced.
> Problem 3
Cansareunstableatendtransferpointswhichcancausetippage.
> Problem 4
Sprocketvibrationcausescantippageattransferpoints.
The brand for plastic modular belts and chains
> Solution 2
uniSNBM220%,uniM-SNBM314%anduniM-QNBclosedtop
useinjectionmoldedpinsinnylonmaterial.Nylonhassuperiorwear
resistancetothePPorPOMmaterialcommonlyused.Comparedto
extrudedpins,moldedpinshaveabetterroundnesstolerancetogive
abettercontactfrompintohingeandthereforebetterwearlife.
> Solution 3
TheuniM-SNBM3anduniM-QNB0.5in.pitchcanbeusedwitha
¾in.diameternosebar.Thisreducesthegapbetweenconveyorsfor
tightertransfers.
> Solution 4
TheuniSNBM2,uniM-SNBM3anduniM-QNBdriveonthebelt
hingeratherthanthecenterofthelink(likesomecompetitors)to
reduceatypeofvibrationcalled“chordalaction”atthedrive
sprockets.
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