{"id":3388,"date":"2026-05-21T08:48:06","date_gmt":"2026-05-21T08:48:06","guid":{"rendered":"https:\/\/pepsenpu.com\/?p=3388"},"modified":"2026-07-29T07:51:02","modified_gmt":"2026-07-29T07:51:02","slug":"fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem","status":"publish","type":"post","link":"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/","title":{"rendered":"Polyurethane Roller Delamination: Causes, Fixes and Validation"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Inhalts\u00fcbersicht<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Inhaltsverzeichnis umschalten\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Umschalten auf<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Define_the_Failure_Problem\" >Define the Failure Problem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Failure_Analysis\" >Fehleranalyse<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Internal_Heat_Build-Up\" >Internal Heat Build-Up<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Poor_Steel_Surface_Preparation\" >Schlechte Vorbereitung der Stahloberfl\u00e4che<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Corrective_Redesign_Process\" >Corrective Redesign Process<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Surface_Preparation\" >Vorbereitung der Oberfl\u00e4che<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Polyurethane_Material_Selection\" >Polyurethane Material Selection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Precision_Grinding\" >Pr\u00e4zisionsschleifen<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Redesign_Control_Plan\" >Redesign Control Plan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Validation_Before_Installation\" >Validation Before Installation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Engineering_Takeaways\" >Engineering Takeaways<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Polyurethane_Rollers_FAQ\" >Polyurethan-Rollen FAQ<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q1_What_is_the_ideal_Shore_hardness_range_for_industrial_polyurethane_rollers\" >Q1: Was ist der ideale Shore-H\u00e4rtebereich f\u00fcr industrielle Polyurethanrollen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q2_Polyurethane_rollers_vs_rubber_rollers_Which_is_better_for_heavy-duty_applications\" >F2: Polyurethanrollen vs. Gummirollen: Was ist besser f\u00fcr Schwerlastanwendungen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q3_What_causes_polyurethane_to_delaminate_or_peel_away_from_a_metal_core\" >Q3: What causes polyurethane to delaminate or peel away from a metal core?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q4_Can_you_replace_or_recoat_the_polyurethane_on_our_existing_steel_or_aluminum_cores\" >F4: K\u00f6nnen Sie das Polyurethan auf unseren vorhandenen Stahl- oder Aluminiumkernen ersetzen oder neu beschichten?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q5_What_is_the_maximum_operating_temperature_for_custom_urethane_rollers\" >F5: Wie hoch ist die maximale Betriebstemperatur f\u00fcr kundenspezifische Urethanrollen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q6_How_do_you_achieve_tight_dimensional_tolerances_on_custom_molded_polyurethane_rollers\" >F6: Wie erreichen Sie enge Ma\u00dftoleranzen bei kundenspezifisch geformten Polyurethanrollen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q7_Are_polyurethane_rollers_resistant_to_industrial_chemicals_oils_and_moisture\" >F7: Sind Polyurethanrollen best\u00e4ndig gegen Industriechemikalien, \u00d6le und Feuchtigkeit?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Q8_What_information_do_you_need_to_provide_an_accurate_RFQ_quote_for_custom_urethane_rollers\" >F8: Welche Informationen ben\u00f6tigen Sie, um ein genaues RFQ-Angebot f\u00fcr kundenspezifische Urethanwalzen zu erstellen?<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/pepsenpu.com\/de\/fallstudie-zur-losung-der-delamination-von-polyurethanrollen-in-einem-hochgeschwindigkeits-materialtransportsystem\/#Request_Polyurethane_Rollers_Quote\" >Angebot f\u00fcr Polyurethan-Rollen anfordern<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Unter <strong><a href=\"https:\/\/pepsenpu.com\/de\/materialtransport\/\" data-type=\"link\" data-id=\"https:\/\/pepsenpu.com\/material-handling\/\">Materialtransport <\/a><\/strong>Systemen treten Rollenausf\u00e4lle selten zu einem g\u00fcnstigen Zeitpunkt auf. In Hochgeschwindigkeits-Logistikbetrieben, die rund um die Uhr laufen, kann ein einziges ausgefallenes Bauteil eine Kettenreaktion in einer ganzen Linie ausl\u00f6sen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Repeated polyurethane delamination on a sorting conveyor is a symptom, not a complete diagnosis. The underlying cause may involve heat build-up, bond preparation, contamination, geometry, overload or a combination of factors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anstatt eine weitere Ersatzrolle zu liefern, begannen wir mit einer Fehleranalyse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Ziel war einfach: herauszufinden, warum die Walzen ausfielen, und festzustellen, ob das Problem mit der Materialauswahl, den Klebemethoden oder den Herstellungsprozessen zusammenhing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following workflow explains how to diagnose the failure, redesign the roller and define a validation plan without assuming that one material change will solve every application.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/precision-cnc-grinding-process-of-a-90-shore-a-industrial-polyurethane-drive-roller.webp\" alt=\"pr\u00e4zisions-cnc-schleifverfahren-einer-90-shore-industriellen-polyurethan-antriebs-rolle\" class=\"wp-image-3394\" srcset=\"https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/precision-cnc-grinding-process-of-a-90-shore-a-industrial-polyurethane-drive-roller.webp 800w, https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/precision-cnc-grinding-process-of-a-90-shore-a-industrial-polyurethane-drive-roller-300x169.webp 300w, https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/precision-cnc-grinding-process-of-a-90-shore-a-industrial-polyurethane-drive-roller-768x432.webp 768w, https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/precision-cnc-grinding-process-of-a-90-shore-a-industrial-polyurethane-drive-roller-18x10.webp 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<div style=\"height:47px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Define_the_Failure_Problem\"><\/span>Define the Failure Problem<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Document the actual line speed, load, duty cycle, start-stop pattern, ambient conditions and roller temperature before selecting a replacement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Record the conveyor speed at normal operation and peak throughput; do not rely only on the equipment nameplate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Record the typical service interval and the failure location on each returned roller.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das h\u00e4ufigste Problem war die Delaminierung des Polyurethans - die Polyurethanschicht l\u00f6ste sich vollst\u00e4ndig vom Stahlkern.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">F\u00fcr die Wartungsabteilung war die Walze selbst nur ein Teil der Kosten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zu den gr\u00f6\u00dferen Auswirkungen geh\u00f6ren:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unerwartete Linienunterbrechungen<\/li>\n\n\n\n<li>Notfall-Wartungsarbeiten<\/li>\n\n\n\n<li>Druck auf den Ersatzteilbestand<\/li>\n\n\n\n<li>geringerer Durchsatz<\/li>\n\n\n\n<li>Kosten f\u00fcr Arbeit und Ausfallzeiten<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A useful teardown inspection compares several failed rollers and documents where separation began, the condition of the bond line and any signs of heat, contamination or overload.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div style=\"height:47px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Failure_Analysis\"><\/span>Fehleranalyse<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Two areas commonly require close inspection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Internal_Heat_Build-Up\"><\/span>Internal Heat Build-Up<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Identify the existing polyurethane chemistry, hardness and cure history when records are available.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Under continuous loading at high speed, repeated compression can generate internal heat through hysteresis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If heat is not dissipated, it can accelerate changes in the polyurethane and bond system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Temperature evidence must be confirmed with operating measurements and bond-line inspection rather than inferred from delamination alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bei Anwendungen mit kontinuierlichen Zyklen ist die Hysterese wichtiger als vielen K\u00e4ufern bewusst ist.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ein Material, das sich unter statischen Bedingungen gut verh\u00e4lt, kann sich unter dynamischer Belastung ganz anders verhalten.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Poor_Steel_Surface_Preparation\"><\/span>Schlechte Vorbereitung der Stahloberfl\u00e4che<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">After the remaining polyurethane is removed, inspect the full metal bonding surface.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Look for polished areas, corrosion, residual adhesive, oil or inconsistent blasting.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Record the surface-preparation method and profile using the applicable bonding-agent and process requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A uniform, clean profile supports repeatable bonding.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Insufficient surface preparation can reduce mechanical anchoring and leave the bond vulnerable to contamination.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bond durability depends on the complete preparation, primer, adhesive, casting and cure process.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Corrective_Redesign_Process\"><\/span>Corrective Redesign Process<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A corrective design should address the documented failure mode, not simply reproduce the previous roller with a different hardness.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Surface_Preparation\"><\/span>Vorbereitung der Oberfl\u00e4che<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Remove the failed covering and prepare the metal core using a controlled cleaning and blasting process compatible with the selected bonding system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Specify and verify the required surface profile according to the bonding-agent supplier&#8217;s process instructions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A controlled profile increases usable contact area and supports consistent adhesive coverage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unmittelbar nach dem Strahlen wurden unter kontrollierten Bedingungen Bindemittel aufgetragen, um Verunreinigungen oder Oberfl\u00e4chenoxidation zu vermeiden.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"711\" height=\"800\" src=\"https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/comparison-of-steel-core-surface-preparation-for-custom-polyurethane-roller-bonding.webp\" alt=\"Vergleich der Stahlkern-Oberfl\u00e4chenvorbereitung f\u00fcr kundenspezifische Polyurethan-Walzenverklebung\" class=\"wp-image-3393\" srcset=\"https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/comparison-of-steel-core-surface-preparation-for-custom-polyurethane-roller-bonding.webp 711w, https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/comparison-of-steel-core-surface-preparation-for-custom-polyurethane-roller-bonding-267x300.webp 267w, https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/comparison-of-steel-core-surface-preparation-for-custom-polyurethane-roller-bonding-11x12.webp 11w\" sizes=\"auto, (max-width: 711px) 100vw, 711px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Polyurethane_Material_Selection\"><\/span>Polyurethane Material Selection<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Select the polyurethane system from the measured load, speed, heat build-up, traction, abrasion, chemical exposure and environmental conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choose hardness from the required deformation, contact pressure and grip; hardness alone does not predict dynamic performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For high-cycle rollers, material screening should include hysteresis, fatigue, tear behavior and bond compatibility.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Candidate formulations should be validated under representative dynamic loading before release.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Erh\u00f6hung der H\u00e4rte allein war nicht das Ziel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ziel war es, die langfristige Stabilit\u00e4t zu verbessern und gleichzeitig die Traktion und das Verschlei\u00dfverhalten zu erhalten.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Precision_Grinding\"><\/span>Pr\u00e4zisionsschleifen<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">At higher conveyor speeds, small dimensional errors can create vibration and uneven loading.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Excessive runout can increase vibration and accelerate wear in bearings, surfaces and bond interfaces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Where the drawing requires it, finish the cured roller by controlled cylindrical grinding.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Define total indicated runout, outside diameter, cylindricity and surface finish on the approved drawing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Inspect and record the finished dimensions using calibrated equipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dimensional control supports stable tracking and repeatable installation.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"800\" src=\"https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/Run-out-inspection-of-polyurethane-rollers-1.webp\" alt=\"Runout inspection of a polyurethane conveyor roller\" class=\"wp-image-3396\" srcset=\"https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/Run-out-inspection-of-polyurethane-rollers-1.webp 600w, https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/Run-out-inspection-of-polyurethane-rollers-1-225x300.webp 225w, https:\/\/pepsenpu.com\/wp-content\/uploads\/2026\/05\/Run-out-inspection-of-polyurethane-rollers-1-9x12.webp 9w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Redesign_Control_Plan\"><\/span>Redesign Control Plan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Control Area<\/th><th>Common Risk<\/th><th>Redesign Requirement<\/th><\/tr><\/thead><tbody><tr><td>Polyurethane System<\/td><td>Selected without dynamic-duty data<\/td><td>Match chemistry to load, speed and environment<\/td><\/tr><tr><td>H\u00e4rte<\/td><td>Chosen as a stand-alone value<\/td><td>Specify from deformation, grip and contact pressure<\/td><\/tr><tr><td>Bond Preparation<\/td><td>Unverified cleaning or surface profile<\/td><td>Document preparation, primer and cure controls<\/td><\/tr><tr><td>Abmessungen<\/td><td>No agreed runout or finish criteria<\/td><td>Define OD, runout and surface finish on the drawing<\/td><\/tr><tr><td>Validation<\/td><td>Visual inspection only<\/td><td>Record dimensions and complete a controlled service trial<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Validation_Before_Installation\"><\/span>Validation Before Installation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Validate redesigned rollers through documented inspection and a controlled service trial.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During the trial, monitor:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>bond-line condition and signs of edge lifting<\/li>\n\n\n\n<li>surface wear, cuts and localized heat damage<\/li>\n\n\n\n<li>roller temperature and vibration at representative loads<\/li>\n\n\n\n<li>outside diameter, runout and tracking<\/li>\n\n\n\n<li>service interval and failure mode<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Compare the trial results with the defined acceptance criteria before approving a wider rollout.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The objective is not simply a longer calendar life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The objective is stable operation with fewer unplanned interruptions and a failure mode that can be understood and controlled.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Engineering_Takeaways\"><\/span>Engineering Takeaways<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Wenn Polyurethanrollen versagen, ist nicht immer das Material das eigentliche Problem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Leistung einer Anleihe h\u00e4ngt vom Zusammenspiel mehrerer Faktoren ab:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Materialauswahl<\/li>\n\n\n\n<li>Oberfl\u00e4chenvorbereitung<\/li>\n\n\n\n<li>Klebeprozess<\/li>\n\n\n\n<li>Abmessungsgenauigkeit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Der Austausch des Polyurethans ist oft nur eine Symptombek\u00e4mpfung, nicht aber eine Ursachenbek\u00e4mpfung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bei Hochgeschwindigkeitsanwendungen sind es oft kleine Prozessdetails, die die langfristige Lebensdauer bestimmen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Explore PEPSEN <strong><a href=\"https:\/\/pepsenpu.com\/de\/kategorie\/produkte\/polyurethan-walzen-produkte\/\" data-type=\"link\" data-id=\"https:\/\/pepsenpu.com\/category\/products\/polyurethane-rollers-products\/\">Polyurethanrollen<\/a><\/strong> or send a failed sample and operating data for review.<\/p>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">+<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Polyurethane_Rollers_FAQ\"><\/span>Polyurethan-Rollen FAQ <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q1_What_is_the_ideal_Shore_hardness_range_for_industrial_polyurethane_rollers\"><\/span>Q1: Was ist der ideale Shore-H\u00e4rtebereich f\u00fcr industrielle Polyurethanrollen?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> There is no single ideal range. Select hardness from load, contact area, required deformation, traction, speed, floor or belt surface and duty cycle. Ask the supplier to confirm the proposed grade and tolerance on the drawing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q2_Polyurethane_rollers_vs_rubber_rollers_Which_is_better_for_heavy-duty_applications\"><\/span>F2: Polyurethanrollen vs. Gummirollen: Was ist besser f\u00fcr Schwerlastanwendungen?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Neither is universally better. Polyurethane can offer useful abrasion, load and chemical-resistance options, while rubber may be preferred for heat dissipation, flexibility or a particular friction requirement. Compare both materials against the actual load, speed, temperature, media and maintenance target.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q3_What_causes_polyurethane_to_delaminate_or_peel_away_from_a_metal_core\"><\/span>Q3: What causes polyurethane to delaminate or peel away from a metal core?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Delamination can result from contamination, inadequate surface preparation, an incompatible bonding system, cure deviations, excessive heat build-up, overload, edge stress or corrosion. Confirm the cause through teardown inspection and process records.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q4_Can_you_replace_or_recoat_the_polyurethane_on_our_existing_steel_or_aluminum_cores\"><\/span>F4: K\u00f6nnen Sie das Polyurethan auf unseren vorhandenen Stahl- oder Aluminiumkernen ersetzen oder neu beschichten?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Existing metal cores can often be recoated if they pass dimensional, material and damage inspection. The worn covering is removed, the core is prepared and the new polyurethane is bonded and cast to the approved drawing. Cost savings depend on core condition, machining and logistics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q5_What_is_the_maximum_operating_temperature_for_custom_urethane_rollers\"><\/span>F5: Wie hoch ist die maximale Betriebstemperatur f\u00fcr kundenspezifische Urethanrollen?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> The allowable temperature depends on polyurethane chemistry, hardness, load, speed, exposure time and surrounding media. Provide continuous and peak temperatures; the supplier should confirm a grade-specific operating window and validation method.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q6_How_do_you_achieve_tight_dimensional_tolerances_on_custom_molded_polyurethane_rollers\"><\/span>F6: Wie erreichen Sie enge Ma\u00dftoleranzen bei kundenspezifisch geformten Polyurethanrollen?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Casting is followed by machining or cylindrical grinding when the drawing requires tighter outside-diameter, concentricity, cylindricity, surface-finish or runout controls. The achievable tolerance depends on roller size, core design, material hardness and inspection method.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q7_Are_polyurethane_rollers_resistant_to_industrial_chemicals_oils_and_moisture\"><\/span>F7: Sind Polyurethanrollen best\u00e4ndig gegen Industriechemikalien, \u00d6le und Feuchtigkeit?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Resistance depends on the polyurethane chemistry and the actual concentration, temperature and exposure time. <a href=\"https:\/\/pepsenpu.com\/de\/polyether-urethane-der-ultimative-leitfaden-fur-eigenschaften-industrieanwendungen-zukunftige-trends\/\" data-type=\"link\" data-id=\"https:\/\/pepsenpu.com\/polyether-urethane-the-ultimate-guide-to-properties-industry-applications-future-trends\/\"><strong>Polyurethan auf Etherbasis<\/strong><\/a> is often considered for moisture and hydrolysis resistance, while ester-based grades may offer different abrasion and oil-resistance characteristics. Confirm compatibility with the exact chemical or cleaning agent through supplier data and testing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q8_What_information_do_you_need_to_provide_an_accurate_RFQ_quote_for_custom_urethane_rollers\"><\/span>F8: Welche Informationen ben\u00f6tigen Sie, um ein genaues RFQ-Angebot f\u00fcr kundenspezifische Urethanwalzen zu erstellen?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Um ein genaues technisches Angebot und eine Materialempfehlung abgeben zu k\u00f6nnen, ben\u00f6tigen wir Folgendes:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Eine technische 2D\/3D-Zeichnung mit allen Abmessungen und Toleranzen.<\/li>\n\n\n\n<li>Die gew\u00fcnschte <strong>Shore-H\u00e4rte<\/strong> (oder Einzelheiten \u00fcber die Anforderungen an die Belastung\/Griffigkeit).<\/li>\n\n\n\n<li>Spezifikation des Kernmaterials (z. B. Kohlenstoffstahl, Aluminium, Edelstahl).<\/li>\n\n\n\n<li>Angaben zur Betriebsumgebung (Betriebsgeschwindigkeit, Tragf\u00e4higkeit, Temperatur und chemische Belastung).<\/li>\n<\/ol>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Request_Polyurethane_Rollers_Quote\"><\/span>Angebot f\u00fcr Polyurethan-Rollen anfordern<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For a polyurethane roller quotation, provide a drawing or sample, dimensions and tolerances, core material, required hardness or grip, load, speed, continuous and peak temperature, chemical exposure, quantity and the observed failure mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PEPSEN can review the operating data and recommend a material, bonding process, finishing method and inspection plan for the application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>In material handling systems, roller failures rarely happen at a convenient time. In high-speed logistics operations running around the clock, one failed component can create a chain reaction across an entire line. Repeated polyurethane delamination on a sorting conveyor is a symptom, not a complete diagnosis. The underlying cause may involve heat build-up, bond preparation, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Polyurethane Roller Delamination: Causes & Fixes | Pepsen","_seopress_titles_desc":"Diagnose polyurethane roller delamination in high-speed conveyors. Review heat build-up, preparation, bonding, material selection, grinding and validation.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[48,3],"tags":[],"class_list":["post-3388","post","type-post","status-publish","format-standard","hentry","category-blog","category-newsblog"],"_links":{"self":[{"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/posts\/3388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/comments?post=3388"}],"version-history":[{"count":10,"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/posts\/3388\/revisions"}],"predecessor-version":[{"id":3738,"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/posts\/3388\/revisions\/3738"}],"wp:attachment":[{"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/media?parent=3388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/categories?post=3388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pepsenpu.com\/de\/wp-json\/wp\/v2\/tags?post=3388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}