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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. www.unichains.com